Final Exam ITN 154 Questions with
Correct Answers Graded A+
The new LAN must support 25 connected devices. What is the smallest network
mask that the network administrator can use for the new network? - Correct
answer-224
The new LAN must support 61 connected devices. What is the smallest network
mask that the network administrator can use for the new network? - Correct
answer-192
The new LAN must support 90 connected devices. What is the smallest network
mask that the network administrator can use for the new network? - Correct
answer-128
The new LAN must support 4 connected devices. What is the smallest network
mask that the network administrator can use for the new network? - Correct
answer-248
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, The new LAN must support 200 connected devices. What is the smallest network
mask that the network administrator can use for the new network? - Correct
answer-0
The new LAN must support 10 connected devices. What is the smallest network
mask that the network administrator can use for the new network? - Correct
answer-240
What are two ICMPv6 messages that are not present in ICMP for IPv4? - Correct
answer-Neighbor Solicitation and Router Advertisment
DHCP Port Number - Correct answer-67
What are two problems that can be caused by a large number of ARP request and
reply messages? - Correct answer-The ARP request is sent as a broadcast, and will
flood the entire subnet. All ARP request messages must be processed by all nodes
on the local network.
During the process of forwarding traffic, what will the router do immediately after
matching the destination IP address to a network on a directly connected routing
table entry? - Correct answer-switch the packet to the directly connected interface
TFTP Port Number - Correct answer-69
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
Correct Answers Graded A+
The new LAN must support 25 connected devices. What is the smallest network
mask that the network administrator can use for the new network? - Correct
answer-224
The new LAN must support 61 connected devices. What is the smallest network
mask that the network administrator can use for the new network? - Correct
answer-192
The new LAN must support 90 connected devices. What is the smallest network
mask that the network administrator can use for the new network? - Correct
answer-128
The new LAN must support 4 connected devices. What is the smallest network
mask that the network administrator can use for the new network? - Correct
answer-248
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, The new LAN must support 200 connected devices. What is the smallest network
mask that the network administrator can use for the new network? - Correct
answer-0
The new LAN must support 10 connected devices. What is the smallest network
mask that the network administrator can use for the new network? - Correct
answer-240
What are two ICMPv6 messages that are not present in ICMP for IPv4? - Correct
answer-Neighbor Solicitation and Router Advertisment
DHCP Port Number - Correct answer-67
What are two problems that can be caused by a large number of ARP request and
reply messages? - Correct answer-The ARP request is sent as a broadcast, and will
flood the entire subnet. All ARP request messages must be processed by all nodes
on the local network.
During the process of forwarding traffic, what will the router do immediately after
matching the destination IP address to a network on a directly connected routing
table entry? - Correct answer-switch the packet to the directly connected interface
TFTP Port Number - Correct answer-69
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
