CCNA Introduction to Networks Final
Exam
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? - ANS-Exit privileged EXEC mode and press Enter.
What happens when the transport input ssh command is entered on the switch vty lines? -
ANS-Communication between the switch and remote users is encrypted.
What is the subnet ID associated with the IPv6 address 2001:DA48:FC5:A4:3D1B::1/64? -
ANS-2001:DA48:FC5:A4::/64
A client is using SLAAC to obtain an IPv6 address for its interface. After an address has been
generated and applied to the interface, what must the client do before it can begin to use this
IPv6 address? - ANS-It must send an ICMPv6 Neighbor Solicitation message to ensure that the
address is not already in use on the network.
Which range of link-local addresses can be assigned to an IPv6-enabled interface?-
ANS-FE80::/10
What mechanism is used by a router to prevent a received IPv4 packet from traveling endlessly
on a network? - ANS-It decrements the value of the TTL field by 1 and if the result is 0, it
discards the packet and sends a Time Exceeded message to the source host.
A network administrator is designing the layout of a new wireless network. Which three areas of
concern should be accounted for when building a wireless network? (Choose three.) -
ANS--security
-interference
-coverage area
Refer to the exhibit. What is wrong with the displayed termination? - ANS-The untwisted length
of each wire is too long.
A network administrator notices that some newly installed Ethernet cabling is carrying corrupt
and distorted data signals. The new cabling was installed in the ceiling close to fluorescent
lights and electrical equipment. Which two factors may interfere with the copper cabling and
result in signal distortion and data corruption? (Choose two.) - ANS--EMI
-RFI
, Data is being sent from a source PC to a destination server. Which three statements correctly
describe the function of TCP or UDP in this situation? (Choose three.) - ANS--The source port
field identifies the running application or service that will handle data returning to the PC.
-UDP segments are encapsulated within IP packets for transport across the network.
-The UDP destination port number identifies the application or service on the server which will
handle the data.
Match the application protocols to the correct transport protocols. - ANS--
A group of Windows PCs in a new subnet has been added to an Ethernet network. When
testing the connectivity, a technician finds that these PCs can access local network resources
but not the Internet resources. To troubleshoot the problem, the technician wants to initially
confirm the IP address and DNS configurations on the PCs, and also verify connectivity to the
local router. Which three Windows CLI commands and utilities will provide the necessary
information? (Choose three.) - ANS--ping
-ipconfig
-nslookup
What two pieces of information are displayed in the output of the show ip interface brief
command? (Choose two.) - ANS--IP addresses
-Layer 1 statuses
A network administrator is adding a new LAN to a branch office. The new LAN must support 25
connected devices. What is the smallest network mask that the network administrator can use
for the new network? - ANS-255.255.255.224
Which frame field is created by a source node and used by a destination node to ensure that a
transmitted data signal has not been altered by interference, distortion, or signal loss? -
ANS-frame check sequence field
What is a function of the data link layer? - ANS-provides for the exchange of frames over a
common local media
What are three characteristics of the CSMA/CD process? (Choose three.) - ANS--After detecting
a collision, hosts can attempt to resume transmission after a random time delay has expired.
-All of the devices on a segment see data that passes on the network medium.
-A device listens and waits until the media is not busy before transmitting.
What characteristic describes a Trojan horse? - ANS-malicious software or code running on an
end device
What three requirements are defined by the protocols used in network communcations to allow
message transmission across a network? (Choose three.) - ANS--message encoding
-delivery options
Exam
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? - ANS-Exit privileged EXEC mode and press Enter.
What happens when the transport input ssh command is entered on the switch vty lines? -
ANS-Communication between the switch and remote users is encrypted.
What is the subnet ID associated with the IPv6 address 2001:DA48:FC5:A4:3D1B::1/64? -
ANS-2001:DA48:FC5:A4::/64
A client is using SLAAC to obtain an IPv6 address for its interface. After an address has been
generated and applied to the interface, what must the client do before it can begin to use this
IPv6 address? - ANS-It must send an ICMPv6 Neighbor Solicitation message to ensure that the
address is not already in use on the network.
Which range of link-local addresses can be assigned to an IPv6-enabled interface?-
ANS-FE80::/10
What mechanism is used by a router to prevent a received IPv4 packet from traveling endlessly
on a network? - ANS-It decrements the value of the TTL field by 1 and if the result is 0, it
discards the packet and sends a Time Exceeded message to the source host.
A network administrator is designing the layout of a new wireless network. Which three areas of
concern should be accounted for when building a wireless network? (Choose three.) -
ANS--security
-interference
-coverage area
Refer to the exhibit. What is wrong with the displayed termination? - ANS-The untwisted length
of each wire is too long.
A network administrator notices that some newly installed Ethernet cabling is carrying corrupt
and distorted data signals. The new cabling was installed in the ceiling close to fluorescent
lights and electrical equipment. Which two factors may interfere with the copper cabling and
result in signal distortion and data corruption? (Choose two.) - ANS--EMI
-RFI
, Data is being sent from a source PC to a destination server. Which three statements correctly
describe the function of TCP or UDP in this situation? (Choose three.) - ANS--The source port
field identifies the running application or service that will handle data returning to the PC.
-UDP segments are encapsulated within IP packets for transport across the network.
-The UDP destination port number identifies the application or service on the server which will
handle the data.
Match the application protocols to the correct transport protocols. - ANS--
A group of Windows PCs in a new subnet has been added to an Ethernet network. When
testing the connectivity, a technician finds that these PCs can access local network resources
but not the Internet resources. To troubleshoot the problem, the technician wants to initially
confirm the IP address and DNS configurations on the PCs, and also verify connectivity to the
local router. Which three Windows CLI commands and utilities will provide the necessary
information? (Choose three.) - ANS--ping
-ipconfig
-nslookup
What two pieces of information are displayed in the output of the show ip interface brief
command? (Choose two.) - ANS--IP addresses
-Layer 1 statuses
A network administrator is adding a new LAN to a branch office. The new LAN must support 25
connected devices. What is the smallest network mask that the network administrator can use
for the new network? - ANS-255.255.255.224
Which frame field is created by a source node and used by a destination node to ensure that a
transmitted data signal has not been altered by interference, distortion, or signal loss? -
ANS-frame check sequence field
What is a function of the data link layer? - ANS-provides for the exchange of frames over a
common local media
What are three characteristics of the CSMA/CD process? (Choose three.) - ANS--After detecting
a collision, hosts can attempt to resume transmission after a random time delay has expired.
-All of the devices on a segment see data that passes on the network medium.
-A device listens and waits until the media is not busy before transmitting.
What characteristic describes a Trojan horse? - ANS-malicious software or code running on an
end device
What three requirements are defined by the protocols used in network communcations to allow
message transmission across a network? (Choose three.) - ANS--message encoding
-delivery options
