Cisco Networking Exam 2 Questions
with Answers
What protocol header information is used at the transport layer to identify a target
application? - Answer-port number
What type of port number is assigned by IANA to commonly used services and
applications? - Answer-well-known port
What is the purpose of using a source port number in a TCP communication? - Answer-
to keep track of multiple conversations between devices
What is an advantage of UDP over TCP? - Answer-UDP communication requires less
overhead.
When is UDP preferred to TCP? - Answer-when an application can tolerate some loss
of data during transmission
Which statement correctly describes data transmission at the transport layer? - Answer-
Both UDP and TCP use port numbers.
Which action is performed by a client when establishing communication with a server
via the use of UDP at the transport layer? - Answer-The client randomly selects a
source port number.
The client randomly selects a source port number. - Answer-443
What information is used by TCP to reassemble and reorder received segments? -
Answer-sequence number
A PC user issues the netstat command without any options. What is displayed as the
result of this command? - Answer-a list of all established active TCP connections
What type of applications are best suited for using UDP? - Answer-UDP is not a
connection-oriented protocol and does not provide retransmission, sequencing, or flow
control mechanisms. It provides basic transport layer functions with a much lower
overhead than TCP. Lower overhead makes UDP suitable for applications which are
sensitive to delay.
A destination PC receives an email message with the sequence numbers on packets
out of order. Which layer of the TCP/IP model is responsible for reassembling the
packets of the message in the correct order? - Answer-transport
, Which number or set of numbers represents a socket? - Answer-192.168.1.1:80
What hosts a web page? - Answer-web server
What requests a web page - Answer-web client
what is used to create web pages - Answer-html
what is the secure protocol using port 443 - Answer-https
protocol commonly used by web browser - Answer-http
Which three pieces of information are identified by a URL? (Choose three.) - Answer-
protocol, domain, and location of resource
true or false, When a client is initiating a request to open an FTP session, it does so by
sending a packet to the FTP server with the destination port 21. - Answer-true, When a
client is initiating a request to open an FTP session, it does so by sending a packet to
the FTP server with the destination port 21.
While a network security product is being deployed, a customizable list of allowable
protocols is shown. Which three protocols should be allowed to provide for the use of
email on a network? ( - Answer-smtp, imap4, pop3
which ping command utility is used to resolve the address to the hostname. - Answer-
ping -a
which ping command utility is used to continue pinging the target interface until
manually stopped - Answer-ping -t
Multiple choice question
What is a function of the tracert command that differs from the ping command when
they are used on a workstation? - Answer-The tracert command shows the information
of routers in the path.
The destination MAC address of an Ethernet broadcast in hexadecimal is: - Answer-
FFFF.FFFF.FFFF
When an Ethernet switch receives a frame that is broadcast, it will: - Answer-Forward
the frame out all ports except the incoming port
Host-A has an Ethernet frame to send to Host-B on the same network. Host-A knows
the IP address of Host-B but not its MAC address. What message will Host-A send to
determine the MAC address of Host B? - Answer-ARP request
with Answers
What protocol header information is used at the transport layer to identify a target
application? - Answer-port number
What type of port number is assigned by IANA to commonly used services and
applications? - Answer-well-known port
What is the purpose of using a source port number in a TCP communication? - Answer-
to keep track of multiple conversations between devices
What is an advantage of UDP over TCP? - Answer-UDP communication requires less
overhead.
When is UDP preferred to TCP? - Answer-when an application can tolerate some loss
of data during transmission
Which statement correctly describes data transmission at the transport layer? - Answer-
Both UDP and TCP use port numbers.
Which action is performed by a client when establishing communication with a server
via the use of UDP at the transport layer? - Answer-The client randomly selects a
source port number.
The client randomly selects a source port number. - Answer-443
What information is used by TCP to reassemble and reorder received segments? -
Answer-sequence number
A PC user issues the netstat command without any options. What is displayed as the
result of this command? - Answer-a list of all established active TCP connections
What type of applications are best suited for using UDP? - Answer-UDP is not a
connection-oriented protocol and does not provide retransmission, sequencing, or flow
control mechanisms. It provides basic transport layer functions with a much lower
overhead than TCP. Lower overhead makes UDP suitable for applications which are
sensitive to delay.
A destination PC receives an email message with the sequence numbers on packets
out of order. Which layer of the TCP/IP model is responsible for reassembling the
packets of the message in the correct order? - Answer-transport
, Which number or set of numbers represents a socket? - Answer-192.168.1.1:80
What hosts a web page? - Answer-web server
What requests a web page - Answer-web client
what is used to create web pages - Answer-html
what is the secure protocol using port 443 - Answer-https
protocol commonly used by web browser - Answer-http
Which three pieces of information are identified by a URL? (Choose three.) - Answer-
protocol, domain, and location of resource
true or false, When a client is initiating a request to open an FTP session, it does so by
sending a packet to the FTP server with the destination port 21. - Answer-true, When a
client is initiating a request to open an FTP session, it does so by sending a packet to
the FTP server with the destination port 21.
While a network security product is being deployed, a customizable list of allowable
protocols is shown. Which three protocols should be allowed to provide for the use of
email on a network? ( - Answer-smtp, imap4, pop3
which ping command utility is used to resolve the address to the hostname. - Answer-
ping -a
which ping command utility is used to continue pinging the target interface until
manually stopped - Answer-ping -t
Multiple choice question
What is a function of the tracert command that differs from the ping command when
they are used on a workstation? - Answer-The tracert command shows the information
of routers in the path.
The destination MAC address of an Ethernet broadcast in hexadecimal is: - Answer-
FFFF.FFFF.FFFF
When an Ethernet switch receives a frame that is broadcast, it will: - Answer-Forward
the frame out all ports except the incoming port
Host-A has an Ethernet frame to send to Host-B on the same network. Host-A knows
the IP address of Host-B but not its MAC address. What message will Host-A send to
determine the MAC address of Host B? - Answer-ARP request
