VERIFIED 2026/2027 Computer Networks CHAPTER 5 ASSESMENT WITH
CORRECT ANSWERS
CHAPTER 5
1- On a VLSM network, which mask should you use on point-to-point WAN links in order to
reduce the waste of IP addresses?
A. /27
B. /28
C. /29
D. /30
E. /31
ANSWER: D
2- In the network shown in the diagram, how many computers could be in Network B?
A. 6
B. 12
C. 14
D. 30
ANSWER: C
3- In the following diagram, in order to have IP addressing that’s as efficient as possible,
which network should use a /29 mask?
A. A
B. B
C. C
D. D
ANSWER: D
4- To use VLSM, what capability must the routing protocols in use possess?
A. Support for multicast
B. Multiprotocol support
C. Transmission of subnet mask information
D. Support for unequal load balancing
ANSWER: C
, VERIFIED 2026/2027 Computer Networks CHAPTER 5 ASSESMENT WITH
CORRECT ANSWERS
5- What summary address would cover all the networks shown and advertise a single,
efficient route to Router B that won't advertise more networks than needed?
A. 172.16.0.0/24
B. 172.16.1.0/24
C. 172.16.0.0/24
D. 172.16.0.0/20
ANSWER: D
6- In the following diagram, what is the most likely reason the station cannot ping outside
of its network?
A. The IP address is incorrect on E0 of the router.
B. The default gateway address is incorrect on the station.
C. The IP address on the station is incorrect.
D. The router is malfunctioning.
ANSWER: C
7- If a host is configured with an incorrect default gateway and all the other computers and
the router are known to be configured correctly, which of the following statements is
TRUE?
A. Host A cannot communicate with the router.
B. Host A can communicate with other hosts in the same subnet.
C. Host A can communicate with hosts in other subnets.
D. Host A can communicate with no other systems.
ANSWER: B
8- Which of the following troubleshooting steps, if completed successfully, also confirms
the other steps will succeed as well?
A. ping a remote computer
B. ping the loopback address
C. ping the NIC
D. ping the default gateway
ANSWER: A
CORRECT ANSWERS
CHAPTER 5
1- On a VLSM network, which mask should you use on point-to-point WAN links in order to
reduce the waste of IP addresses?
A. /27
B. /28
C. /29
D. /30
E. /31
ANSWER: D
2- In the network shown in the diagram, how many computers could be in Network B?
A. 6
B. 12
C. 14
D. 30
ANSWER: C
3- In the following diagram, in order to have IP addressing that’s as efficient as possible,
which network should use a /29 mask?
A. A
B. B
C. C
D. D
ANSWER: D
4- To use VLSM, what capability must the routing protocols in use possess?
A. Support for multicast
B. Multiprotocol support
C. Transmission of subnet mask information
D. Support for unequal load balancing
ANSWER: C
, VERIFIED 2026/2027 Computer Networks CHAPTER 5 ASSESMENT WITH
CORRECT ANSWERS
5- What summary address would cover all the networks shown and advertise a single,
efficient route to Router B that won't advertise more networks than needed?
A. 172.16.0.0/24
B. 172.16.1.0/24
C. 172.16.0.0/24
D. 172.16.0.0/20
ANSWER: D
6- In the following diagram, what is the most likely reason the station cannot ping outside
of its network?
A. The IP address is incorrect on E0 of the router.
B. The default gateway address is incorrect on the station.
C. The IP address on the station is incorrect.
D. The router is malfunctioning.
ANSWER: C
7- If a host is configured with an incorrect default gateway and all the other computers and
the router are known to be configured correctly, which of the following statements is
TRUE?
A. Host A cannot communicate with the router.
B. Host A can communicate with other hosts in the same subnet.
C. Host A can communicate with hosts in other subnets.
D. Host A can communicate with no other systems.
ANSWER: B
8- Which of the following troubleshooting steps, if completed successfully, also confirms
the other steps will succeed as well?
A. ping a remote computer
B. ping the loopback address
C. ping the NIC
D. ping the default gateway
ANSWER: A
