▷ CCNA1 v7 ITN | Modules 14 - 15 Exam Answers

CCNA1 v7 Modules 14 - 15 Exam Answers

Summary

Check answers here: CCNA1 v7 ITN Modules 14 – 15: Communicating Between Networks Exam Answers. CCNA 200-301 Passed 100% !!

This exam will cover material from Modules 14- 15 Network Application Communications 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 14 – 15 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 Network Application Communications Exam Answers

Which two protocols may devices use in the application process that sends email? (Choose two.)

Please select 3 correct answers

POP

SMTP

DNS

POP3

HTTP

IMAP

Correct! Wrong!

A PC is downloading a large file from a server. The TCP window is 1000 bytes. The server is sending the file using 100-byte segments. How many segments will the server send before it requires an acknowledgment from the PC?

1000 segments

10 segments

1 segment

100 segments

Correct! Wrong!

What are two characteristics of the application layer of the TCP/IP model? (Choose two.)

Please select 2 correct answers

closest to the end user

the creation and maintenance of dialogue between source and destination applications

responsibility for logical addressing

responsibility for physical addressing

Correct! Wrong!

Which application layer protocol uses message types such as GET, PUT, and POST?

HTTP

DHCP

SMTP

POP3

DNS

Correct! Wrong!

Which protocol or service uses UDP for a client-to-server communication and TCP for server-to-server communication?

DNS

SMTP

FTP

HTTP

Correct! Wrong!

Which two fields are included in the TCP header but not in the UDP header? (Choose two.)

Please select 2 correct answers

sequence number

source port

destination port

window

checksum

Correct! Wrong!

Which three fields are used in a UDP segment header? (Choose three.)

Please select 3 correct answers

Length

Sequence Number

Source Port

Checksum

Acknowledgment Number

Window Size

Correct! Wrong!

Which scenario describes a function provided by the transport layer?

A student is playing a short web-based movie with sound. The movie and sound are encoded within the transport layer header.

A corporate worker is accessing a web server located on a corporate network. The transport layer formats the screen so the web page appears properly no matter what device is being used to view the web site.

A student has two web browser windows open in order to access two web sites. The transport layer ensures the correct web page is delivered to the correct browser window.

A student is using a classroom VoIP phone to call home. The unique identifier burned into the phone is a transport layer address used to contact another network device on the same network.

Correct! Wrong!

What kind of port must be requested from IANA in order to be used with a specific application?

dynamic port

registered port

private port

source port

Correct! Wrong!

Which two operations are provided by TCP but not by UDP? (Choose two.)

Please select 2 correct answers

tracking individual conversations

acknowledging received data

reconstructing data in the order received

retransmitting any unacknowledged data

identifying the applications

Correct! Wrong!

A PC that is communicating with a web server has a TCP window size of 6,000 bytes when sending data and a packet size of 1,500 bytes. Which byte of information will the web server acknowledge after it has received two packets of data from the PC?

3001

4500

6001

6000

Correct! Wrong!

What do the client/server and peer-to-peer network models have in common?

Both models support devices in server and client roles.

Both models are used only in the wired network environment.

Both models have dedicated servers.

Both models require the use of TCP/IP-based protocols.

Correct! Wrong!

Which application layer protocol is used to provide file-sharing and print services to Microsoft applications?

SMTP

SMB

HTTP

DHCP

Correct! Wrong!

Which three layers of the OSI model provide similar network services to those provided by the application layer of the TCP/IP model? (Choose three.)

Please select 3 correct answers

data link layer

presentation layer

transport layer

application layer

physical layer

session layer

Correct! Wrong!

A client creates a packet to send to a server. The client is requesting HTTP service. What number will be used as the destination port number in the sending packet?

Correct! Wrong!

A PC that is communicating with a web server has a TCP window size of 6,000 bytes when sending data and a packet size of 1,500 bytes. Which byte of information will the web server acknowledge after it has received three packets of data from the PC?

6000

4500

4501

6001

Correct! Wrong!

How are port numbers used in the TCP/IP encapsulation process?

Source port numbers and destination port numbers are not necessary when UDP is the transport layer protocol being used for the communication.

Source port and destination port numbers are randomly generated.

If multiple conversations occur that are using the same service, the source port number is used to track the separate conversations.

Destination port numbers are assigned automatically and cannot be changed.

Correct! Wrong!

A client creates a packet to send to a server. The client is requesting SSH service. What number will be used as the destination port number in the sending packet?

Correct! Wrong!

What is a key characteristic of the peer-to-peer networking model?

resource sharing without a dedicated server

social networking without the Internet

network printing using a print server

wireless networking

Correct! Wrong!

When retrieving email messages, which protocol allows for easy, centralized storage and backup of emails that would be desirable for a small- to medium-sized business?

IMAP

HTTPS

SMTP

POP

Correct! Wrong!

Which two flags in the TCP header are used in a TCP three-way handshake to establish connectivity between two network devices? (Choose two.)

Please select 2 correct answers

FIN

PSH

URG

RST

ACK

SYN

Correct! Wrong!

What is an example of network communication that uses the client-server model?

A workstation initiates a DNS request when the user types www.cisco.com in the address bar of a web browser.

A workstation initiates an ARP to find the MAC address of a receiving host.

A user prints a document by using a printer that is attached to a workstation of a coworker.

A user uses eMule to download a file that is shared by a friend after the file location is determined.

Correct! Wrong!

What happens if part of an FTP message is not delivered to the destination?

The entire FTP message is re-sent.

The message is lost because FTP does not use a reliable delivery method.

The FTP source host sends a query to the destination host.

The part of the FTP message that was lost is re-sent.

Correct! Wrong!

Which layer in the TCP/IP model is used for formatting, compressing, and encrypting data?

session

network access

presentation

internetwork

application

Correct! Wrong!

What message type is used by an HTTP client to request data from a web server?

PUT

POST

ACK

GET

Correct! Wrong!

Which three statements characterize UDP? (Choose three.)

Please select 3 correct answers

UDP relies on application layer protocols for error detection.

UDP provides connection-oriented, fast transport of data at Layer 3.

UDP provides sophisticated flow control mechanisms.

UDP provides basic connectionless transport layer functions.

UDP is a low overhead protocol that does not provide sequencing or flow control mechanisms.

UDP relies on IP for error detection and recovery.

Correct! Wrong!

A client creates a packet to send to a server. The client is requesting SMTP service. What number will be used as the destination port number in the sending packet?

110

443

161

Correct! Wrong!

What is the complete range of TCP and UDP well-known ports?

1024 – 49151

0 to 255

0 to 1023

256 – 1023

Correct! Wrong!

Which factor determines TCP window size?

the number of services included in the TCP segment

the amount of data the source is capable of sending at one time

the amount of data to be transmitted

the amount of data the destination can process at one time

Correct! Wrong!

Which three application layer protocols use TCP? (Choose three.)

Please select 3 correct answers

SMTP

FTP

HTTP

SNMP

TFTP

DHCP

Correct! Wrong!

In what two situations would UDP be better than TCP as the preferred transport protocol? (Choose two.)

Please select 2 correct answers

when delivery overhead is not an issue

when a faster delivery mechanism is needed

when destination port numbers are dynamic

when applications do not need to guarantee delivery of the data

when applications need to guarantee that a packet arrives intact, in sequence, and unduplicated

Correct! Wrong!

Which two characteristics are associated with UDP sessions? (Choose two.)

Please select 2 correct answers

Unacknowledged data packets are retransmitted.

Destination devices receive traffic with minimal delay.

Transmitted data segments are tracked.

Destination devices reassemble messages and pass them to an application.

Received data is unacknowledged.

Correct! Wrong!

What type of applications are best suited for using UDP?

applications that are sensitive to packet loss

applications that are sensitive to delay

applications that require retransmission of lost segments

applications that need reliable delivery

Correct! Wrong!

What are two characteristics of peer-to-peer networks? (Choose two.)

Please select 2 correct answers

decentralized resources

resource sharing without a dedicated server

one way data flow

centralized user accounts

scalability

Correct! Wrong!

Which action is performed by a client when establishing communication with a server via the use of UDP at the transport layer?

The client sets the window size for the session.

The client randomly selects a source port number.

The client sends a synchronization segment to begin the session.

The client sends an ISN to the server to start the 3-way handshake.

Correct! Wrong!

Which three protocols or standards are used at the application layer of the TCP/IP model? (Choose three.)

Please select 3 correct answers

MPEG

HTTP

UDP

TCP

GIF

Correct! Wrong!

Which statement is true about FTP?

FTP does not provide reliability during data transmission.

FTP is a peer-to-peer application.

The client can download data from or upload data to the server.

The client can choose if FTP is going to establish one or two connections with the server.

Correct! Wrong!

Which OSI layer provides the interface between the applications used to communicate and the underlying network over which messages are transmitted?

session

presentation

transport

application

Correct! Wrong!

Which two services or protocols use the preferred UDP protocol for fast transmission and low overhead? (Choose two)

Please select 2 correct answers

DNS

HTTP

VoIP

POP3

FTP

Correct! Wrong!

What is the function of the HTTP GET message?

to request an HTML page from a web server

to upload content to a web server from a web client

to send error information from a web server to a web client

to retrieve client email from an email server using TCP port 110

Correct! Wrong!

Which three protocols operate at the application layer of the TCP/IP model? (Choose three.)

Please select 3 correct answers

ARP

FTP

UDP

DHCP

POP3

TCP

Correct! Wrong!

The application layer of the TCP/IP model performs the functions of what three layers of the OSI model? (Choose three.)

Please select 3 correct answers

data link

presentation

physical

application

session

transport

network

Correct! Wrong!

What is a socket?

the combination of the source and destination sequence numbers and port numbers

the combination of the source and destination sequence and acknowledgment numbers

the combination of a source IP address and port number or a destination IP address and port number

the combination of the source and destination IP address and source and destination Ethernet address

Correct! Wrong!

How does a networked server manage requests from multiple clients for different services?

Each request is tracked through the physical address of the client.

Each request is assigned source and destination port numbers.

The server sends all requests through a default gateway.

The server uses IP addresses to identify different services.

Correct! Wrong!

A manufacturing company subscribes to certain hosted services from its ISP. The services that are required include hosted world wide web, file transfer, and e-mail. Which protocols represent these three key applications? (Choose three.)

Please select 3 correct answers

SNMP

SMTP

DNS

FTP

HTTP

DHCP

Correct! Wrong!

What part of the URL, http://www.cisco.com/index.html, represents the top-level DNS domain?

http

index

www

.com

Correct! Wrong!

In what networking model would eDonkey, eMule, BitTorrent, Bitcoin, and LionShare be used?

peer-to-peer

master-slave

point-to-point

client-based

Correct! Wrong!

Which field in the TCP header indicates the status of the three-way handshake process?

control bits

checksum

window

reserved

Correct! Wrong!

Which TCP/IP model layer is closest to the end user?

internet

transport

application

network access

Correct! Wrong!

Which two types of applications are best suited for UDP? (Choose two.)

Please select 2 correct answers

applications that can tolerate some data loss, but require little or no delay

applications that need the reordering of segments

applications that require reliable delivery

applications that handle reliability themselves

applications that need data flow control

Correct! Wrong!

Which networking model is being used when an author uploads one chapter document to a file server of a book publisher?

client/server

peer-to-peer

master-slave

point-to-point

Correct! Wrong!

A client creates a packet to send to a server. The client is requesting HTTPS service. What number will be used as the destination port number in the sending packet?

161

110

443

Correct! Wrong!

Which number or set of numbers represents a socket?

01-23-45-67-89-AB

192.168.1.1:80

10.1.1.15

Correct! Wrong!

What information is used by TCP to reassemble and reorder received segments?

acknowledgment numbers

sequence numbers

port numbers

fragment numbers

Correct! Wrong!

What are two roles of the transport layer in data communication on a network? (Choose two.)

Please select 2 correct answers

identifying the proper application for each communication stream

performing a cyclic redundancy check on the frame for errors

providing frame delimiting to identify bits making up a frame

providing the interface between applications and the underlying network over which messages are transmitted

tracking the individual communication between applications on the source and destination hosts

Correct! Wrong!

Which protocol uses encryption?

DNS

DHCP

FTP

HTTPS

Correct! Wrong!

What is a characteristic of UDP?

UDP only passes data to the network when the destination is ready to receive the data.

UDP datagrams take the same path and arrive in the correct order at the destination.

Applications that use UDP are always considered unreliable.

UDP reassembles the received datagrams in the order they were received.

Correct! Wrong!

Which flag in the TCP header is used in response to a received FIN in order to terminate connectivity between two network devices?

SYN

FIN

RST

ACK

Correct! Wrong!

Why does HTTP use TCP as the transport layer protocol?

because HTTP is a best-effort protocol

because transmission errors can be tolerated easily

because HTTP requires reliable delivery

to ensure the fastest possible download speed

Correct! Wrong!

What important information is added to the TCP/IP transport layer header to ensure communication and connectivity with a remote network device?

destination and source physical addresses

destination and source logical network addresses

destination and source port numbers

timing and synchronization

Correct! Wrong!

Which transport layer feature is used to guarantee session establishment?

TCP 3-way handshake

UDP ACK flag

UDP sequence number

TCP port number

Correct! Wrong!

Network congestion has resulted in the source learning of the loss of TCP segments that were sent to the destination. What is one way that the TCP protocol addresses this?

The destination sends fewer acknowledgement messages in order to conserve bandwidth.

The source decreases the amount of data that it transmits before it receives an acknowledgement from the destination.

The source decreases the window size to decrease the rate of transmission from the destination.

The destination decreases the window size.

Correct! Wrong!

On a home network, which device is most likely to provide dynamic IP addressing to clients on the home network?

a home router

a dedicated file server

a DNS server

an ISP DHCP server

Correct! Wrong!

What are three responsibilities of the transport layer? (Choose three.)

Please select 3 correct answers

directing packets towards the destination network

conducting error detection of the contents in frames

meeting the reliability requirements of applications, if any

formatting data into a compatible form for receipt by the destination devices

identifying the applications and services on the client and server that should handle transmitted data

multiplexing multiple communication streams from many users or applications on the same network

Correct! Wrong!

An author is uploading one chapter document from a personal computer to a file server of a book publisher. What role is the personal computer assuming in this network model?

slave

master

server

client

transient

Correct! Wrong!

A wireless host needs to request an IP address. What protocol would be used to process the request?

SNMP

FTP

HTTP

ICMP

DHCP

Correct! Wrong!

Which two tasks can be performed by a local DNS server? (Choose two.)

Please select 2 correct answers

forwarding name resolution requests between servers

retrieving email messages

providing IP addresses to local hosts

mapping name-to-IP addresses for internal hosts

allowing data transfer between two network devices

Correct! Wrong!

Which protocol can be used to transfer messages from an email server to an email client?

HTTP

SMTP

SNMP

POP3

Correct! Wrong!

What is the TCP mechanism used in congestion avoidance ?

three-way handshake

sliding window

two-way handshake

socket pair

Correct! Wrong!

What type of information is contained in a DNS MX record?

the FQDN of the alias used to identify a service

the IP address of an authoritative name server

the domain name mapped to mail exchange servers

the IP address for an FQDN entry

Correct! Wrong!

A client creates a packet to send to a server. The client is requesting POP3 service. What number will be used as the destination port number in the sending packet?

110

Correct! Wrong!

A client creates a packet to send to a server. The client is requesting SNMP service. What number will be used as the destination port number in the sending packet?

443

161

110

Correct! Wrong!

Which applications or services allow hosts to act as client and server at the same time?

P2P applications

client/server applications

authentication services

email applications

Correct! Wrong!

What is a responsibility of transport layer protocols?

translating private IP addresses to public IP addresses

tracking individual conversations

providing network access

determining the best path to forward a packet

Correct! Wrong!

A client creates a packet to send to a server. The client is requesting FTP service. What number will be used as the destination port number in the sending packet?

Correct! Wrong!

A client creates a packet to send to a server. The client is requesting telnet service. What number will be used as the destination port number in the sending packet?

161

110

443

Correct! Wrong!

Which three statements describe a DHCP Discover message? (Choose three.)

Please select 3 correct answers

The source MAC address is 48 ones (FF-FF-FF-FF-FF-FF).

Only the DHCP server receives the message.

The destination IP address is 255.255.255.255.

All hosts receive the message, but only a DHCP server replies.

The message comes from a client seeking an IP address.

The message comes from a server offering an IP address.

Correct! Wrong!

What is a common protocol that is used with peer-to-peer applications such as WireShare, Bearshare, and Shareaza?

POP

Gnutella

SMTP

Ethernet

Correct! Wrong!

Which protocol is used by a client to communicate securely with a web server?

HTTPS

SMB

IMAP

SMTP

Correct! Wrong!

What is the purpose of using a source port number in a TCP communication?

to assemble the segments that arrived out of order

to inquire for a nonreceived segment

to notify the remote device that the conversation is over

to keep track of multiple conversations between devices

Correct! Wrong!

What is an advantage of SMB over FTP?

Only with SMB can data transfers occur in both directions.

SMB clients can establish a long-term connection to the server.

Only SMB establishes two simultaneous connections with the client, making the data transfer faster.

SMB is more reliable than FTP because SMB uses TCP and FTP uses UDP.

Correct! Wrong!

What does a client do when it has UDP datagrams to send?

It sends a simplified three-way handshake to the server.

It queries the server to see if it is ready to receive data.

It sends to the server a segment with the SYN flag set to synchronize the conversation.

It just sends the datagrams.

Correct! Wrong!

What is true about the Server Message Block protocol?

SMB uses the FTP protocol for communication.

SMB messages cannot authenticate a session.

Different SMB message types have a different format.

Clients establish a long term connection to servers.

Correct! Wrong!

Why is DHCP preferred for use on large networks?

DHCP uses a reliable transport layer protocol.

It is a more efficient way to manage IP addresses than static address assignment.

It prevents sharing of files that are copyrighted.

Large networks send more requests for domain to IP address resolution than do smaller networks.

Hosts on large networks require more IP addressing configuration settings than hosts on small networks.

Correct! Wrong!

A client creates a packet to send to a server. The client is requesting TFTP service. What number will be used as the destination port number in the sending packet?

Correct! Wrong!

A PC that is communicating with a web server has a TCP window size of 6,000 bytes when sending data and a packet size of 1,500 bytes. Which byte of information will the web server acknowledge after it has received four packets of data from the PC?

1501

3001

6001

1500

Correct! Wrong!

ITN | Modules 14 – 15

Final Score

Congratulations, you have completed the CCNA1 v7 – ITN – Modules 14 – 15! Tell us your rating!

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 14 – 15 Exam Answers

CCNA1 v7 Modules 14 - 15 Exam Answers

CCNA1 v7 Network Application Communications Exam Answers

Which two protocols may devices use in the application process that sends email? (Choose two.)

A PC is downloading a large file from a server. The TCP window is 1000 bytes. The server is sending the file using 100-byte segments. How many segments will the server send before it requires an acknowledgment from the PC?

What are two characteristics of the application layer of the TCP/IP model? (Choose two.)

Which application layer protocol uses message types such as GET, PUT, and POST?

Which protocol or service uses UDP for a client-to-server communication and TCP for server-to-server communication?

Which two fields are included in the TCP header but not in the UDP header? (Choose two.)

Which three fields are used in a UDP segment header? (Choose three.)

Which scenario describes a function provided by the transport layer?

What kind of port must be requested from IANA in order to be used with a specific application?

Which two operations are provided by TCP but not by UDP? (Choose two.)

A PC that is communicating with a web server has a TCP window size of 6,000 bytes when sending data and a packet size of 1,500 bytes. Which byte of information will the web server acknowledge after it has received two packets of data from the PC?

What do the client/server and peer-to-peer network models have in common?

Which application layer protocol is used to provide file-sharing and print services to Microsoft applications?

Which three layers of the OSI model provide similar network services to those provided by the application layer of the TCP/IP model? (Choose three.)

A client creates a packet to send to a server. The client is requesting HTTP service. What number will be used as the destination port number in the sending packet?

A PC that is communicating with a web server has a TCP window size of 6,000 bytes when sending data and a packet size of 1,500 bytes. Which byte of information will the web server acknowledge after it has received three packets of data from the PC?

How are port numbers used in the TCP/IP encapsulation process?

A client creates a packet to send to a server. The client is requesting SSH service. What number will be used as the destination port number in the sending packet?

What is a key characteristic of the peer-to-peer networking model?

When retrieving email messages, which protocol allows for easy, centralized storage and backup of emails that would be desirable for a small- to medium-sized business?

Which two flags in the TCP header are used in a TCP three-way handshake to establish connectivity between two network devices? (Choose two.)

What is an example of network communication that uses the client-server model?

What happens if part of an FTP message is not delivered to the destination?

Which layer in the TCP/IP model is used for formatting, compressing, and encrypting data?

What message type is used by an HTTP client to request data from a web server?

Which three statements characterize UDP? (Choose three.)

A client creates a packet to send to a server. The client is requesting SMTP service. What number will be used as the destination port number in the sending packet?

What is the complete range of TCP and UDP well-known ports?

Which factor determines TCP window size?

Which three application layer protocols use TCP? (Choose three.)

In what two situations would UDP be better than TCP as the preferred transport protocol? (Choose two.)

Which two characteristics are associated with UDP sessions? (Choose two.)

What type of applications are best suited for using UDP?

What are two characteristics of peer-to-peer networks? (Choose two.)

Which action is performed by a client when establishing communication with a server via the use of UDP at the transport layer?

Which three protocols or standards are used at the application layer of the TCP/IP model? (Choose three.)

Which statement is true about FTP?

Which OSI layer provides the interface between the applications used to communicate and the underlying network over which messages are transmitted?

Which two services or protocols use the preferred UDP protocol for fast transmission and low overhead? (Choose two)

What is the function of the HTTP GET message?

Which three protocols operate at the application layer of the TCP/IP model? (Choose three.)

The application layer of the TCP/IP model performs the functions of what three layers of the OSI model? (Choose three.)

What is a socket?

How does a networked server manage requests from multiple clients for different services?

A manufacturing company subscribes to certain hosted services from its ISP. The services that are required include hosted world wide web, file transfer, and e-mail. Which protocols represent these three key applications? (Choose three.)

What part of the URL, http://www.cisco.com/index.html, represents the top-level DNS domain?

In what networking model would eDonkey, eMule, BitTorrent, Bitcoin, and LionShare be used?

Which field in the TCP header indicates the status of the three-way handshake process?

Which TCP/IP model layer is closest to the end user?

Which two types of applications are best suited for UDP? (Choose two.)

Which networking model is being used when an author uploads one chapter document to a file server of a book publisher?

A client creates a packet to send to a server. The client is requesting HTTPS service. What number will be used as the destination port number in the sending packet?

Which number or set of numbers represents a socket?

What information is used by TCP to reassemble and reorder received segments?

What are two roles of the transport layer in data communication on a network? (Choose two.)

Which protocol uses encryption?

What is a characteristic of UDP?

Which flag in the TCP header is used in response to a received FIN in order to terminate connectivity between two network devices?

Why does HTTP use TCP as the transport layer protocol?

What important information is added to the TCP/IP transport layer header to ensure communication and connectivity with a remote network device?

Which transport layer feature is used to guarantee session establishment?

Network congestion has resulted in the source learning of the loss of TCP segments that were sent to the destination. What is one way that the TCP protocol addresses this?

On a home network, which device is most likely to provide dynamic IP addressing to clients on the home network?

What are three responsibilities of the transport layer? (Choose three.)

An author is uploading one chapter document from a personal computer to a file server of a book publisher. What role is the personal computer assuming in this network model?

A wireless host needs to request an IP address. What protocol would be used to process the request?

Which two tasks can be performed by a local DNS server? (Choose two.)

Which protocol can be used to transfer messages from an email server to an email client?

What is the TCP mechanism used in congestion avoidance ?

What type of information is contained in a DNS MX record?

A client creates a packet to send to a server. The client is requesting POP3 service. What number will be used as the destination port number in the sending packet?

A client creates a packet to send to a server. The client is requesting SNMP service. What number will be used as the destination port number in the sending packet?

Which applications or services allow hosts to act as client and server at the same time?

What is a responsibility of transport layer protocols?

What is an advantage of SMB over FTP?