▷ CCNA1 v7 ITN | Modules 8 - 10 Exam Answers

CCNA1 v7 Modules 8 - 10 Exam Answers

Summary

Check answers here: CCNA1 v7 ITN Modules 8 – 10: Communicating Between Networks Exam Answers. CCNA 200-301 Passed 100% !!

This exam will cover material from Modules 8- 10 of the CCNA1 – Introduction to Networks v7.0 (ITN) curriculum. This exam will be scored using the Weighted Model where each MCSA (Multiple-Choice Single-Answer) is worth two points and each MCMA (Multiple-Choice Multiple-Answer) is worth one point for each correct option. Other tasks types such as fill-in-the-blank, drag and drop (matching) and Packet Tracer items may be included in this exam. For Packet Tracer tasks, you must have the latest version of Packet Tracer installed on your machine.

This exam will cover material from Modules 8- 10 of the CCNA1 – Introduction to Networks v7.0 (ITN) curriculum.

This exam will be scored using the Weighted Model where each MCSA (Multiple-Choice Single-Answer) is worth two points and each MCMA (Multiple-Choice Multiple-Answer) is worth one point for each correct option. If more options are selected than required, the student will receive a score of zero.

CCNA1 v7 Communicating Between Networks Exam Answers

The global configuration command ip default-gateway 172.16.100.1 is applied to a switch. What is the effect of this command?

The switch can communicate with other hosts on the 172.16.100.0 network.

The switch is limited to sending and receiving frames to and from the gateway 172.16.100.1.

The switch will have a management interface with the address 172.16.100.1.

The switch can be remotely managed from a host on another network.

Correct! Wrong!

Which router component holds the routing table, ARP cache, and running configuration file?

ROM

Flash

RAM

NVRAM

Correct! Wrong!

BldgA(config)# interface gi0/1
BldgA(config-if)# description Connects to the Medical LAN
BldgA(config-if)# ip address 192.168.201.200 255.255.255.0
BldgA(config-if)# no shutdown
BldgA(config-if)# interface gi0/0
BldgA(config-if)# description Connects to the Client LAN
BldgA(config-if)# ip address 192.168.200.80 255.255.255.0
BldgA(config-if)# no shutdown
BldgA(config-if)# interface s0/0/0
BldgA(config-if)# description Connects to the ISP
BldgA(config-if)# ip address 10.200.201.254 255.255.255.0
BldgA(config-if)# no shutdown
BldgA(config-if)# interface s0/0/1
BldgA(config-if)# description Connects to the Head Office WAN
BldgA(config-if)# ip address 203.0.113.222 255.255.255.0
BldgA(config-if)# no shutdown
BldgA(config-if)# end
Refer to the exhibit. A network administrator is connecting a new host to the Medical LAN. The host needs to communicate with remote networks. What IP address would be configured as the default gateway on the new host?

10.200.201.254

192.168.201.1

203.0.113.222

192.168.201.200

192.168.200.80

Correct! Wrong!

Which action is taken by a Layer 2 switch when it receives a Layer 2 broadcast frame?

It sends the frame to all ports that are registered to forward broadcasts.

It sends the frame to all ports except the port on which it received the frame.

It sends the frame to all ports.

It drops the frame.

Correct! Wrong!

What type of information is contained in an ARP table?

routes to reach destination networks

IP address to MAC address mappings

domain name to IP address mappings

switch ports associated with destination MAC addresses

Correct! Wrong!

Which command is used to encrypt all passwords in a router configuration file?

Router_A (config) # enable secret

Router_A (config) # enable password

Router_A (config) # encrypt password

Router_A (config) # service password-encryption

Correct! Wrong!

A new network administrator has been asked to enter a banner message on a Cisco device. What is the fastest way a network administrator could test whether the banner is properly configured?

Exit global configuration mode.

Exit privileged EXEC mode and press Enter.

Reboot the device.

Power cycle the device.

Enter CTRL-Z at the privileged mode prompt.

Correct! Wrong!

Which term describes a field in the IPv4 packet header used to detect corruption in the IPv4 header?

header checksum

TTL

protocol

source IPv4 address

Correct! Wrong!

Which field in an IPv6 packet is used by the router to determine if a packet has expired and should be dropped?

Address Unreachable

TTL

Hop Limit

No Route to Destination

Correct! Wrong!

Within a production network, what is the purpose of configuring a switch with a default gateway address?

A switch must have a default gateway to be accessible by Telnet and SSH.

It provides a next-hop address for all traffic that flows through the switch.

The default gateway address is used to forward packets originating from the switch to remote networks.

Hosts that are connected to the switch can use the switch default gateway address to forward packets to a remote destination.

Correct! Wrong!

What is one advantage that the IPv6 simplified header offers over IPv4?

efficient packet handling

smaller-sized header

smaller-sized source and destination IP addresses

little requirement for processing checksums

Correct! Wrong!

Which command can be used on a Cisco router to display all interfaces, the IPv4 address assigned, and the current status?

show ip route

ping

show ip interface brief

show interface fa0/1

Correct! Wrong!

What property of ARP allows hosts on a LAN to send traffic to remote networks?

Local hosts learn the MAC address of the default gateway.

The port-to-MAC address table on a switch has the same entries as the ARP table on the switch.

The destination MAC address FF-FF-FF-FF-FF-FF appears in the header of the Ethernet frame.

The source MAC address appears in the header of the Ethernet frame.

Correct! Wrong!

Which two ICMPv6 messages are used during the Ethernet MAC address resolution process? (Choose two.)

Please select 2 correct answers

router solicitation

neighbor advertisement

echo request

router advertisement

neighbor solicitation

Correct! Wrong!

HQ(config)# interface gi0/1
HQ(config-if)# description Connects to the Branch LAN
HQ(config-if)# ip address 172.19.99.99 255.255.255.0
HQ(config-if)# no shutdown
HQ(config-if)# interface gi0/0
HQ(config-if)# description Connects to the Store LAN
HQ(config-if)# ip address 172.19.98.230 255.255.255.0
HQ(config-if)# no shutdown
HQ(config-if)# interface s0/0/0
HQ(config-if)# description Connects to the ISP
HQ(config-if)# ip address 10.98.99.254 255.255.255.0
HQ(config-if)# no shutdown
HQ(config-if)# interface s0/0/1
HQ(config-if)# description Connects to the Head Office WAN
HQ(config-if)# ip address 209.165.200.120 255.255.255.0
HQ(config-if)# no shutdown
HQ(config-if)# end
Refer to the exhibit. A network administrator is connecting a new host to the Store LAN. The host needs to communicate with remote networks. What IP address would be configured as the default gateway on the new host?

172.19.98.1

172.19.99.99

172.19.98.230

209.165.200.120

10.98.99.254

Correct! Wrong!

What is a basic characteristic of the IP protocol?

reliable end-to-end delivery

connectionless

media dependent

user data segmentation

Correct! Wrong!

What will a Layer 2 switch do when the destination MAC address of a received frame is not in the MAC table?

It forwards the frame out of all ports except for the port at which the frame was received.

It notifies the sending host that the frame cannot be delivered.

It broadcasts the frame out of all ports on the switch.

It initiates an ARP request.

Correct! Wrong!

Which term describes a field in the IPv4 packet header that contains a unicast, multicast, or broadcast address?

destination IPv4 address

protocol

header checksum

TTL

Correct! Wrong!

Which statement accurately describes a characteristic of IPv4?

An IPv4 header has fewer fields than an IPv6 header has.

IPv4 natively supports IPsec.

All IPv4 addresses are assignable to hosts.

IPv4 has a 32-bit address space.

Correct! Wrong!

What is the purpose of the startup configuration file on a Cisco router?

to contain the commands that are used to initially configure a router on startup

to contain the configuration commands that the router IOS is currently using

to facilitate the basic operation of the hardware components of a device

Correct! Wrong!

What is the purpose of the banner motd command?

It provides an easy way of communicating with any user attached to a router’s LANs.

It configures a message that will identify printed documents to LAN users.

It is a way that routers communicate the status of their links with one another.

It provides a way to make announcements to those who log in to a router.

Correct! Wrong!

Which term describes a field in the IPv4 packet header that contains an 8-bit binary value used to determine the priority of each packet?

differentiated services

destination IPv4 address

protocol

source IPv4 address

Correct! Wrong!

A network technician issues the arp -d * command on a PC after the router that is connected to the LAN is reconfigured. What is the result after this command is issued?

The detailed information of the ARP cache is displayed.

The current content of the ARP cache is displayed.

The ARP cache is synchronized with the router interface.

The ARP cache is cleared.

Correct! Wrong!

What IPv4 header field identifies the upper layer protocol carried in the packet?

Protocol

Identification

Version

Differentiated Services

Correct! Wrong!

What will happen if the default gateway address is incorrectly configured on a host?

The switch will not forward packets initiated by the host.

The host cannot communicate with other hosts in the local network.

The host will have to use ARP to determine the correct address of the default gateway.

A ping from the host to 127.0.0.1 would not be successful.

The host cannot communicate with hosts in other networks.

Correct! Wrong!

Which destination address is used in an ARP request frame?

255.255.255.255

0.0.0.0

the physical address of the destination host

AAAA.AAAA.AAAA

FFFF.FFFF.FFFF

Correct! Wrong!

When transporting data from real-time applications, such as streaming audio and video, which field in the IPv6 header can be used to inform the routers and switches to maintain the same path for the packets in the same conversation?

Traffic Class

Differentiated Services

Flow Label

Next Header

Correct! Wrong!

Floor(config)# interface gi0/1
Floor(config-if)# description Connects to the Registrar LAN
Floor(config-if)# ip address 192.168.225.223 255.255.255.0
Floor(config-if)# no shutdown
Floor(config-if)# interface gi0/0
Floor(config-if)# description Connects to the Manager LAN
Floor(config-if)# ip address 192.168.224.103 255.255.255.0
Floor(config-if)# no shutdown
Floor(config-if)# interface s0/0/0
Floor(config-if)# description Connects to the ISP
Floor(config-if)# ip address 10.224.225.254 255.255.255.0
Floor(config-if)# no shutdown
Floor(config-if)# interface s0/0/1
Floor(config-if)# description Connects to the Head Office WAN
Floor(config-if)# ip address 203.0.113.246 255.255.255.0
Floor(config-if)# no shutdown
Floor(config-if)# end
Refer to the exhibit. A network administrator is connecting a new host to the Registrar LAN. The host needs to communicate with remote networks. What IP address would be configured as the default gateway on the new host?

192.168.224.103

192.168.225.223

203.0.113.246

10.224.225.254

192.168.225.1

Correct! Wrong!

Which CLI mode allows users to access all device commands, such as those used for configuration, management, and troubleshooting?

user EXEC mode

interface configuration mode

global configuration mode

privileged EXEC mode

Correct! Wrong!

What will be the response from the router after the command, “router(config)# hostname portsmouth” is entered?

invalid input detected

portsmouth#

router(config-host)#

? command not recognized
router(config)#

portsmouth(config)#

Correct! Wrong!

Main(config)# interface gi0/1
Main(config-if)# description Connects to the Service LAN
Main(config-if)# ip address 172.29.157.156 255.255.255.0
Main(config-if)# no shutdown
Main(config-if)# interface gi0/0
Main(config-if)# description Connects to the Engineering LAN
Main(config-if)# ip address 172.29.156.36 255.255.255.0
Main(config-if)# no shutdown
Main(config-if)# interface s0/0/0
Main(config-if)# description Connects to the ISP
Main(config-if)# ip address 10.156.157.254 255.255.255.0
Main(config-if)# no shutdown
Main(config-if)# interface s0/0/1
Main(config-if)# description Connects to the Head Office WAN
Main(config-if)# ip address 198.51.100.177 255.255.255.0
Main(config-if)# no shutdown
Main(config-if)# end
Refer to the exhibit. A network administrator is connecting a new host to the Service LAN. The host needs to communicate with remote networks. What IP address would be configured as the default gateway on the new host?

172.29.156.36

10.156.157.254

172.29.157.156

172.29.157.1

198.51.100.177

Correct! Wrong!

Which characteristic describes the default gateway of a host computer?

the physical address of the router interface on the same network as the host computer

the physical address of the switch interface connected to the host computer

the logical address of the router interface on the same network as the host computer

the logical address assigned to the switch interface connected to the router

Correct! Wrong!

What is stored in the NVRAM of a Cisco router?

the startup configuration

the Cisco IOS

the running configuration

the bootup instructions

Correct! Wrong!

What is the purpose of ARP in an IPv4 network?

to obtain a specific MAC address when an IP address is known

to forward data onward based on the destination MAC address.

to build the MAC address table in a switch from the information that is gathered

to forward data onward based on the destination IP address

Correct! Wrong!

How does the network layer use the MTU value?

To increase speed of delivery, the network layer ignores the MTU.

The network layer depends on the higher level layers to determine the MTU.

The MTU is passed to the network layer by the data link layer.

The network layer depends on the data link layer to set the MTU, and adjusts the speed of transmission to accommodate it.

Correct! Wrong!

HQ(config)# interface gi0/1
HQ(config-if)# description Connects to the Branch LAN
HQ(config-if)# ip address 172.20.133.132 255.255.255.0
HQ(config-if)# no shutdown
HQ(config-if)# interface gi0/0
HQ(config-if)# description Connects to the Store LAN
HQ(config-if)# ip address 172.20.132.13 255.255.255.0
HQ(config-if)# no shutdown
HQ(config-if)# interface s0/0/0
HQ(config-if)# description Connects to the ISP
HQ(config-if)# ip address 10.132.133.254 255.255.255.0
HQ(config-if)# no shutdown
HQ(config-if)# interface s0/0/1
HQ(config-if)# description Connects to the Head Office WAN
HQ(config-if)# ip address 198.51.100.156 255.255.255.0
HQ(config-if)# no shutdown
HQ(config-if)# end
Refer to the exhibit. A network administrator is connecting a new host to the Store LAN. The host needs to communicate with remote networks. What IP address would be configured as the default gateway on the new host?

172.20.132.13

172.20.133.132

172.20.132.1

10.132.133.254

198.51.100.156

Correct! Wrong!

A router receives a packet from the Gigabit 0/0 interface and determines that the packet needs to be forwarded out the Gigabit 0/1 interface. What will the router do next?

look into the ARP cache to determine the destination IP address

create a new Layer 2 Ethernet frame to be sent to the destination

route the packet out the Gigabit 0/1 interface

look into the routing table to determine if the destination network is in the routing table

Correct! Wrong!

Which statement describes a feature of the IP protocol?

IP relies on upper layer services to handle situations of missing or out-of-order packets.

MAC addresses are used during the IP packet encapsulation.

IP encapsulation is modified based on network media.

IP relies on Layer 2 protocols for transmission error control.

Correct! Wrong!

What are two potential network problems that can result from ARP operation? (Choose two.)

Please select 2 correct answers

Manually configuring static ARP associations could facilitate ARP poisoning or MAC address spoofing.

Large numbers of ARP request broadcasts could cause the host MAC address table to overflow and prevent the host from communicating on the network.

On large networks with low bandwidth, multiple ARP broadcasts could cause data communication delays.

Network attackers could manipulate MAC address and IP address mappings in ARP messages with the intent of intercepting network traffic.

Multiple ARP replies result in the switch MAC address table containing entries that match the MAC addresses of hosts that are connected to the relevant switch port.

Correct! Wrong!

What property of ARP forces all Ethernet NICs to process an ARP request?

ARP replies are broadcast on the network when a host receives an ARP request.

The type field 0x806 appears in the header of the Ethernet frame.

The destination MAC address FF-FF-FF-FF-FF-FF appears in the header of the Ethernet frame.

The source MAC address appears in the header of the Ethernet frame.

Correct! Wrong!

Which information is used by routers to forward a data packet toward its destination?

source IP address

source data-link address

destination IP address

destination data-link address

Correct! Wrong!

What addresses are mapped by ARP?

destination IPv4 address to the destination host name

destination IPv4 address to the source MAC address

destination MAC address to the source IPv4 address

destination MAC address to a destination IPv4 address

Correct! Wrong!

What information is added during encapsulation at OSI Layer 3?

source and destination IP address

source and destination MAC

source and destination application protocol

Correct! Wrong!

The ARP table in a switch maps which two types of address together?

Layer 2 address to a Layer 4 address

Layer 4 address to a Layer 2 address

Layer 3 address to a Layer 2 address

Layer 3 address to a Layer 4 address

Correct! Wrong!

Company policy requires using the most secure method to safeguard access to the privileged exec and configuration mode on the routers. The privileged exec password is trustknow1. Which of the following router commands achieves the goal of providing the highest level of security?

enable secret trustknow1

enable password trustknow1

service password-encryption

secret password trustknow1

Correct! Wrong!

How does the ARP process use an IP address?

to determine the amount of time a packet takes when traveling from source to destination

to determine the network number based on the number of bits in the IP address

to determine the MAC address of a device on the same network

to determine the MAC address of the remote destination host

Correct! Wrong!

A computer has to send a packet to a destination host in the same LAN. How will the packet be sent?

The packet will be sent to the default gateway first, and then, depending on the response from the gateway, it may be sent to the destination host.

The packet will be sent only to the default gateway.

The packet will be sent directly to the destination host.

The packet will first be sent to the default gateway, and then from the default gateway it will be sent directly to the destination host.

Correct! Wrong!

When a router receives a packet, what information must be examined in order for the packet to be forwarded to a remote destination?

source IP address

source MAC address

destination IP address

destination MAC address

Correct! Wrong!

Which IPv4 address can a host use to ping the loopback interface?

127.0.0.0

126.0.0.0

126.0.0.1

127.0.0.1

Correct! Wrong!

What happens when the transport input ssh command is entered on the switch vty lines?

Communication between the switch and remote users is encrypted.

The SSH client on the switch is enabled.

The switch requires remote connections via a proprietary client software.

The switch requires a username/password combination for remote access.

Correct! Wrong!

A computer can access devices on the same network but cannot access devices on other networks. What is the probable cause of this problem?

The cable is not connected properly to the NIC.

The computer has an invalid default gateway address.

The computer has an incorrect subnet mask.

The computer has an invalid IP address.

Correct! Wrong!

RTR1(config)# interface gi0/1
RTR1(config-if)# description Connects to the Marketing LAN
RTR1(config-if)# ip address 10.27.15.17 255.255.255.0
RTR1(config-if)# no shutdown
RTR1(config-if)# interface gi0/0
RTR1(config-if)# description Connects to the Payroll LAN
RTR1(config-if)# ip address 10.27.14.148 255.255.255.0
RTR1(config-if)# no shutdown
RTR1(config-if)# interface s0/0/0
RTR1(config-if)# description Connects to the ISP
RTR1(config-if)# ip address 10.14.15.254 255.255.255.0
RTR1(config-if)# no shutdown
RTR1(config-if)# interface s0/0/1
RTR1(config-if)# description Connects to the Head Office WAN
RTR1(config-if)# ip address 203.0.113.39 255.255.255.0
RTR1(config-if)# no shutdown
RTR1(config-if)# end
Refer to the exhibit. A network administrator is connecting a new host to the Payroll LAN. The host needs to communicate with remote networks. What IP address would be configured as the default gateway on the new host?

10.14.15.254

10.27.14.1

10.27.15.17

10.27.14.148

Correct! Wrong!

Floor(config)# interface gi0/1
Floor(config-if)# description Connects to the Registrar LAN
Floor(config-if)# ip address 10.118.63.65 255.255.255.0
Floor(config-if)# no shutdown
Floor(config-if)# interface gi0/0
Floor(config-if)# description Connects to the Manager LAN
Floor(config-if)# ip address 10.118.62.196 255.255.255.0
Floor(config-if)# no shutdown
Floor(config-if)# interface s0/0/0
Floor(config-if)# description Connects to the ISP
Floor(config-if)# ip address 10.62.63.254 255.255.255.0
Floor(config-if)# no shutdown
Floor(config-if)# interface s0/0/1
Floor(config-if)# description Connects to the Head Office WAN
Floor(config-if)# ip address 209.165.200.87 255.255.255.0
Floor(config-if)# no shutdown
Floor(config-if)# end
Refer to the exhibit. A network administrator is connecting a new host to the Manager LAN. The host needs to communicate with remote networks. What IP address would be configured as the default gateway on the new host?

10.118.63.65

10.118.62.1

209.165.200.87

10.118.62.196

10.62.63.254

Correct! Wrong!

A technician is configuring a router to allow for all forms of management access. As part of each different type of access, the technician is trying to type the command login. Which configuration mode should be entered to do this task?

global configuration mode

any line configuration mode

privileged EXEC mode

user executive mode

Correct! Wrong!

What important information is examined in the Ethernet frame header by a Layer 2 device in order to forward the data onward?

source IP address

destination MAC address

destination IP address

Ethernet type

source MAC address

Correct! Wrong!

Which three commands are used to set up secure access to a router through a connection to the console interface? (Choose three.)

Please select 3 correct answers

password cisco

line vty 0 4

line console 0

interface fastethernet 0/0

enable secret cisco

Correct! Wrong!

Which characteristic describes an IPv6 enhancement over IPv4?

The IPv6 header is simpler than the IPv4 header is, which improves packet handling.

Both IPv4 and IPv6 support authentication, but only IPv6 supports privacy capabilities.

The IPv6 address space is four times bigger than the IPv4 address space.

IPv6 addresses are based on 128-bit flat addressing as opposed to IPv4 which is based on 32-bit hierarchical addressing.

Correct! Wrong!

What property of ARP causes the request to be flooded out all ports of a switch except for the port receiving the ARP request?

Entries in an ARP table are time-stamped and are purged after the timeout expires.

The type field 0x806 appears in the header of the Ethernet frame.

ARP replies are broadcast on the network when a host receives an ARP request.

The destination MAC address FF-FF-FF-FF-FF-FF appears in the header of the Ethernet frame.

Correct! Wrong!

Which parameter does the router use to choose the path to the destination when there are multiple routes available?

the lower metric value that is associated with the destination network

the lower gateway IP address to get to the destination network

the higher metric value that is associated with the destination network

the higher gateway IP address to get to the destination network

Correct! Wrong!

What are two services provided by the OSI network layer? (Choose two.)

Please select 2 correct answers

collision detection

encapsulating PDUs from the transport layer

routing packets toward the destination

performing error detection

placement of frames on the media

Correct! Wrong!

What information does the loopback test provide?

DHCP is working correctly.

The Ethernet cable is working correctly.

The device has the correct IP address on the network.

The TCP/IP stack on the device is working correctly.

The device has end-to-end connectivity.

Correct! Wrong!

Which statement regarding the service password-encryption command is true?

It encrypts only line mode passwords.

It is configured in privileged EXEC mode.

To see the passwords encrypted by the service password-encryption command in plain text, issue the no service password-encryption command.

As soon as the service password-encryption command is entered, all currently set passwords formerly displayed in plain text are encrypted.

Correct! Wrong!

BldgA(config)# interface gi0/1
BldgA(config-if)# description Connects to the Medical LAN
BldgA(config-if)# ip address 192.168.191.189 255.255.255.0
BldgA(config-if)# no shutdown
BldgA(config-if)# interface gi0/0
BldgA(config-if)# description Connects to the Client LAN
BldgA(config-if)# ip address 192.168.190.70 255.255.255.0
BldgA(config-if)# no shutdown
BldgA(config-if)# interface s0/0/0
BldgA(config-if)# description Connects to the ISP
BldgA(config-if)# ip address 10.190.191.254 255.255.255.0
BldgA(config-if)# no shutdown
BldgA(config-if)# interface s0/0/1
BldgA(config-if)# description Connects to the Head Office WAN
BldgA(config-if)# ip address 198.51.100.213 255.255.255.0
BldgA(config-if)# no shutdown
BldgA(config-if)# end

Refer to the exhibit. A network administrator is connecting a new host to the Medical LAN. The host needs to communicate with remote networks. What IP address would be configured as the default gateway on the new host?

198.51.100.213

192.168.191.189

10.190.191.254

192.168.191.1

192.168.190.70

Correct! Wrong!

When a connectionless protocol is in use at a lower layer of the OSI model, how is missing data detected and retransmitted if necessary?

Connectionless acknowledgements are used to request retransmission.

Upper-layer connection-oriented protocols keep track of the data received and can request retransmission from the upper-level protocols on the sending host.

The best-effort delivery process guarantees that all packets that are sent are received.

Network layer IP protocols manage the communication sessions if connection-oriented transport services are not available.

Correct! Wrong!

Which two types of IPv6 messages are used in place of ARP for address resolution?

Please select 2 correct answers

broadcast

echo request

neighbor advertisement

neighbor solicitation

echo reply

anycast

Correct! Wrong!

What routing table entry has a next hop address associated with a destination network?

remote routes

C and L source routes

local routes

directly-connected routes

Correct! Wrong!

What is a function of ARP?

resolving MAC addresses to port addresses

resolving port addresses to MAC addresses

resolving IPv4 addresses to MAC addresses

resolving MAC addresses to IPv4 addresses

Correct! Wrong!

What property of ARP causes a reply only to the source sending an ARP request?

ARP replies are broadcast on the network when a host receives an ARP request.

The destination MAC address FF-FF-FF-FF-FF-FF appears in the header of the Ethernet frame.

The source MAC address appears in the header of the Ethernet frame.

The type field 0x806 appears in the header of the Ethernet frame.

Correct! Wrong!

What are two functions of NVRAM? (Choose two.)

Please select 2 correct answers

to store the startup configuration file

to retain contents when power is removed

to store the ARP table

to contain the running configuration file

to store the routing table

Correct! Wrong!

An administrator is configuring a new router to permit out-of-band management access. Which set of commands will allow the required login using a password of cisco?

Router(config)# line vty 0 4
Router(config-line)# password cisco
Router(config-line)# login

Router(config)# line console 0
Router(config-line)# password cisco
Router(config-line)# exit
Router(config)# service password-encryption

Router(config)# line vty 0 4
Router(config-line)# password manage
Router(config-line)# exit

Router(config)# line console 0
Router(config-line)# password cisco
Router(config-line)# login

Correct! Wrong!

A PC is configured to obtain an IP address automatically from network 192.168.1.0/24. The network administrator issues the arp –a command and notices an entry of 192.168.1.255 ff-ff-ff-ff-ff-ff. Which statement describes this entry?

This is a static map entry.

This entry maps to the default gateway.

This entry refers to the PC itself.

This is a dynamic map entry.

Correct! Wrong!

What is the effect of using the Router# copy running-config startup-config command on a router?

The contents of flash will change.

The contents of ROM will change.

The contents of RAM will change.

The contents of NVRAM will change.

Correct! Wrong!

Main(config)# interface gi0/1
Main(config-if)# description Connects to the Service LAN
Main(config-if)# ip address 192.168.167.166 255.255.255.0
Main(config-if)# no shutdown
Main(config-if)# interface gi0/0
Main(config-if)# description Connects to the Engineering LAN
Main(config-if)# ip address 192.168.166.46 255.255.255.0
Main(config-if)# no shutdown
Main(config-if)# interface s0/0/0
Main(config-if)# description Connects to the ISP
Main(config-if)# ip address 10.166.167.254 255.255.255.0
Main(config-if)# no shutdown
Main(config-if)# interface s0/0/1
Main(config-if)# description Connects to the Head Office WAN
Main(config-if)# ip address 198.51.100.189 255.255.255.0
Main(config-if)# no shutdown
Main(config-if)# end
Refer to the exhibit. A network administrator is connecting a new host to the Service LAN. The host needs to communicate with remote networks. What IP address would be configured as the default gateway on the new host?

198.51.100.189

10.166.167.254

192.168.167.166

192.168.167.1

192.168.166.46

Correct! Wrong!

Which term describes a field in the IPv4 packet header that contains a 32-bit binary value associated with an interface on the sending device?

destination IPv4 address

source IPv4 address

protocol

TTL

Correct! Wrong!

What statement describes the function of the Address Resolution Protocol?

ARP is used to discover the IP address of any host on the local network.

ARP is used to discover the MAC address of any host on a different network.

ARP is used to discover the IP address of any host on a different network.

ARP is used to discover the MAC address of any host on the local network.

Correct! Wrong!

Which term describes a field in the IPv4 packet header used to identify the next level protocol?

protocol

TTL

source IPv4 address

destination IPv4 address

Correct! Wrong!

Which field in the IPv4 header is used to prevent a packet from traversing a network endlessly?

Time-to-Live

Differentiated Services

Sequence Number

Acknowledgment Number

Correct! Wrong!

What property of ARP causes the NICs receiving an ARP request to pass the data portion of the Ethernet frame to the ARP process?

The type field 0x806 appears in the header of the Ethernet frame.

ARP replies are broadcast on the network when a host receives an ARP request.

Entries in an ARP table are time-stamped and are purged after the timeout expires.

The destination MAC address FF-FF-FF-FF-FF-FF appears in the header of the Ethernet frame.

Correct! Wrong!

Which statement describes the treatment of ARP requests on the local link?

They are received and processed only by the target device.

They are dropped by all switches on the local network.

They must be forwarded by all routers on the local network.

They are received and processed by every device on the local network.

Correct! Wrong!

What is the aim of an ARP spoofing attack?

to fill switch MAC address tables with bogus addresses

to associate IP addresses to the wrong MAC address

to overwhelm network hosts with ARP requests

to flood the network with ARP reply broadcasts

Correct! Wrong!

Which two functions are primary functions of a router? (Choose two.)

Please select 2 correct answers

microsegmentation

flow control

path selection

packet forwarding

domain name resolution

Correct! Wrong!

Which field in an IPv4 packet header will typically stay the same during its transmission?

Packet Length

Destination Address

Flag

Time-to-Live

Correct! Wrong!

What property of ARP allows MAC addresses of frequently used servers to be fixed in the ARP table?

A static IP-to-MAC address entry can be entered manually into an ARP table.

Entries in an ARP table are time-stamped and are purged after the timeout expires.

The type field 0x806 appears in the header of the Ethernet frame.

The port-to-MAC address table on a switch has the same entries as the ARP table on the switch.

Correct! Wrong!

When an IP packet is sent to a host on a remote network, what information is provided by ARP?

the MAC address of the switch port that connects to the sending host

the MAC address of the router interface closest to the sending host

the IP address of the default gateway

the IP address of the destination host

Correct! Wrong!

A router boots and enters setup mode. What is the reason for this?

Cisco IOS is missing from flash memory.

The IOS image is corrupt.

The configuration file is missing from NVRAM.

The POST process has detected hardware failure.

Correct! Wrong!

Where are IPv4 address to Layer 2 Ethernet address mappings maintained on a host computer?

routing table

MAC address table

neighbor table

ARP cache

Correct! Wrong!

What is one function of the ARP protocol?

obtaining an IPv4 address automatically

resolving an IPv4 address to a MAC address

mapping a domain name to its IP address

maintaining a table of domain names with their resolved IP addresses

Correct! Wrong!

Under which two circumstances will a switch flood a frame out of every port except the port that the frame was received on? (Choose two.)

Please select 2 correct answers

The source address in the frame header is the broadcast address.

The frame has the broadcast address as the destination address.

The destination address is unknown to the switch.

The destination address in the frame is a known unicast address.

The source address in the frame is a multicast address.

Correct! Wrong!

Floor(config)# interface gi0/1
Floor(config-if)# description Connects to the Registrar LAN
Floor(config-if)# ip address 192.168.235.234 255.255.255.0
Floor(config-if)# no shutdown
Floor(config-if)# interface gi0/0
Floor(config-if)# description Connects to the Manager LAN
Floor(config-if)# ip address 192.168.234.114 255.255.255.0
Floor(config-if)# no shutdown
Floor(config-if)# interface s0/0/0
Floor(config-if)# description Connects to the ISP
Floor(config-if)# ip address 10.234.235.254 255.255.255.0
Floor(config-if)# no shutdown
Floor(config-if)# interface s0/0/1
Floor(config-if)# description Connects to the Head Office WAN
Floor(config-if)# ip address 203.0.113.3 255.255.255.0
Floor(config-if)# no shutdown
Floor(config-if)# end
Refer to the exhibit. A network administrator is connecting a new host to the Registrar LAN. The host needs to communicate with remote networks. What IP address would be configured as the default gateway on the new host?

192.168.234.114

203.0.113.3

192.168.235.1

10.234.235.254

192.168.235.234

Correct! Wrong!

What property of ARP causes cached IP-to-MAC mappings to remain in memory longer?

The port-to-MAC address table on a switch has the same entries as the ARP table on the switch.

A static IP-to-MAC address entry can be entered manually into an ARP table.

The type field 0x806 appears in the header of the Ethernet frame.

Entries in an ARP table are time-stamped and are purged after the timeout expires.

Correct! Wrong!

Why is NAT not needed in IPv6?

The end-to-end connectivity problems that are caused by NAT are solved because the number of routes increases with the number of nodes that are connected to the Internet.

Because IPv6 has integrated security, there is no need to hide the IPv6 addresses of internal networks.

Any host or user can get a public IPv6 network address because the number of available IPv6 addresses is extremely large.

The problems that are induced by NAT applications are solved because the IPv6 header improves packet handling by intermediate routers.

Correct! Wrong!

Which term describes a field in the IPv4 packet header used to limit the lifetime of a packet?

TTL

header checksum

source IPv4 address

protocol

Correct! Wrong!

What was the reason for the creation and implementation of IPv6?

to allow NAT support for private addressing

to make reading a 32-bit address easier

to provide more address space in the Internet Names Registry

to relieve IPv4 address depletion

Correct! Wrong!

Which term describes a field in the IPv4 packet header that contains a 4-bit binary value set to 0100?

source IPv4 address

protocol

version

TTL

Correct! Wrong!

A cybersecurity analyst believes an attacker is spoofing the MAC address of the default gateway to perform a man-in-the-middle attack. Which command should the analyst use to view the MAC address a host is using to reach the default gateway?

arp -a

route print

netstat -r

ipconfig /all

Correct! Wrong!

How do hosts ensure that their packets are directed to the correct network destination?

They send a query packet to the default gateway asking for the best route.

They always direct their packets to the default gateway, which will be responsible for the packet delivery.

They have to keep their own local routing table that contains a route to the loopback interface, a local network route, and a remote default route.

They search in their own local routing table for a route to the network destination address and pass this information to the default gateway.

Correct! Wrong!

ITN | Modules 8 – 10

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CCNA3 v7 ENSA | Final Exam Answers

CCNA3 v7 ENSA | Modules 13 – 14 Exam Answers

CCNA3 v7 ENSA | Modules 9 – 12 Exam Answers

CCNA1 v7 ITN | Modules 8 – 10 Exam Answers

CCNA1 v7 Modules 8 - 10 Exam Answers

CCNA1 v7 Communicating Between Networks Exam Answers

The global configuration command ip default-gateway 172.16.100.1 is applied to a switch. What is the effect of this command?

Which router component holds the routing table, ARP cache, and running configuration file?

Which action is taken by a Layer 2 switch when it receives a Layer 2 broadcast frame?

What type of information is contained in an ARP table?

Which command is used to encrypt all passwords in a router configuration file?

A new network administrator has been asked to enter a banner message on a Cisco device. What is the fastest way a network administrator could test whether the banner is properly configured?

Which term describes a field in the IPv4 packet header used to detect corruption in the IPv4 header?

Which field in an IPv6 packet is used by the router to determine if a packet has expired and should be dropped?

Within a production network, what is the purpose of configuring a switch with a default gateway address?

What is one advantage that the IPv6 simplified header offers over IPv4?

Which command can be used on a Cisco router to display all interfaces, the IPv4 address assigned, and the current status?

What property of ARP allows hosts on a LAN to send traffic to remote networks?

Which two ICMPv6 messages are used during the Ethernet MAC address resolution process? (Choose two.)

What is a basic characteristic of the IP protocol?

What will a Layer 2 switch do when the destination MAC address of a received frame is not in the MAC table?

Which term describes a field in the IPv4 packet header that contains a unicast, multicast, or broadcast address?

Which statement accurately describes a characteristic of IPv4?

What is the purpose of the startup configuration file on a Cisco router?

What is the purpose of the banner motd command?

Which term describes a field in the IPv4 packet header that contains an 8-bit binary value used to determine the priority of each packet?

A network technician issues the arp -d * command on a PC after the router that is connected to the LAN is reconfigured. What is the result after this command is issued?

What IPv4 header field identifies the upper layer protocol carried in the packet?

What will happen if the default gateway address is incorrectly configured on a host?

Which destination address is used in an ARP request frame?

When transporting data from real-time applications, such as streaming audio and video, which field in the IPv6 header can be used to inform the routers and switches to maintain the same path for the packets in the same conversation?

Which CLI mode allows users to access all device commands, such as those used for configuration, management, and troubleshooting?

What will be the response from the router after the command, “router(config)# hostname portsmouth” is entered?

Which characteristic describes the default gateway of a host computer?

What is stored in the NVRAM of a Cisco router?

What is the purpose of ARP in an IPv4 network?

How does the network layer use the MTU value?

A router receives a packet from the Gigabit 0/0 interface and determines that the packet needs to be forwarded out the Gigabit 0/1 interface. What will the router do next?

Which statement describes a feature of the IP protocol?

What are two potential network problems that can result from ARP operation? (Choose two.)

What property of ARP forces all Ethernet NICs to process an ARP request?

Which information is used by routers to forward a data packet toward its destination?

What addresses are mapped by ARP?

What information is added during encapsulation at OSI Layer 3?

The ARP table in a switch maps which two types of address together?

Company policy requires using the most secure method to safeguard access to the privileged exec and configuration mode on the routers. The privileged exec password is trustknow1. Which of the following router commands achieves the goal of providing the highest level of security?

How does the ARP process use an IP address?

A computer has to send a packet to a destination host in the same LAN. How will the packet be sent?

When a router receives a packet, what information must be examined in order for the packet to be forwarded to a remote destination?

Which IPv4 address can a host use to ping the loopback interface?

What happens when the transport input ssh command is entered on the switch vty lines?

A computer can access devices on the same network but cannot access devices on other networks. What is the probable cause of this problem?

A technician is configuring a router to allow for all forms of management access. As part of each different type of access, the technician is trying to type the command login. Which configuration mode should be entered to do this task?

What important information is examined in the Ethernet frame header by a Layer 2 device in order to forward the data onward?

Which three commands are used to set up secure access to a router through a connection to the console interface? (Choose three.)

Which characteristic describes an IPv6 enhancement over IPv4?​

What property of ARP causes the request to be flooded out all ports of a switch except for the port receiving the ARP request?

Which parameter does the router use to choose the path to the destination when there are multiple routes available?

What are two services provided by the OSI network layer? (Choose two.)

What information does the loopback test provide?

Which statement regarding the service password-encryption command is true?

When a connectionless protocol is in use at a lower layer of the OSI model, how is missing data detected and retransmitted if necessary?

Which two types of IPv6 messages are used in place of ARP for address resolution?

What routing table entry has a next hop address associated with a destination network?

What is a function of ARP?

What property of ARP causes a reply only to the source sending an ARP request?

What are two functions of NVRAM? (Choose two.)

An administrator is configuring a new router to permit out-of-band management access. Which set of commands will allow the required login using a password of cisco?

A PC is configured to obtain an IP address automatically from network 192.168.1.0/24. The network administrator issues the arp –a command and notices an entry of 192.168.1.255 ff-ff-ff-ff-ff-ff. Which statement describes this entry?

What is the effect of using the Router# copy running-config startup-config command on a router?

Which term describes a field in the IPv4 packet header that contains a 32-bit binary value associated with an interface on the sending device?

What statement describes the function of the Address Resolution Protocol?

Which term describes a field in the IPv4 packet header used to identify the next level protocol?

Which field in the IPv4 header is used to prevent a packet from traversing a network endlessly?

What property of ARP causes the NICs receiving an ARP request to pass the data portion of the Ethernet frame to the ARP process?

Which statement describes the treatment of ARP requests on the local link?

What is the aim of an ARP spoofing attack?

Which two functions are primary functions of a router? (Choose two.)

Which field in an IPv4 packet header will typically stay the same during its transmission?

What property of ARP allows MAC addresses of frequently used servers to be fixed in the ARP table?

Which characteristic describes an IPv6 enhancement over IPv4?

Why is NAT not needed in IPv6?