1. Host-A has the IPv4 address and subnet mask 10.5.4.100 255.255.255.0. What is the network address of Host-A?

• 10.0.0.0
• 10.5.0.0
• 10.5.4.0
• 10.5.4.100

Explanation: The network address for 10.5.4.100 with a subnet mask of 255.255.255.0 is 10.5.4.0.

2. Host-A has the IPv4 address and subnet mask 172.16.4.100 255.255.0.0. What is the network address of Host-A?

• 172.0.0.0
• 172.16.0.0
• 172.16.4.0
• 172.16.4.100

Explanation: The network address for 172.16.4.100 with a subnet mask of 255.255.0.0 is 172.16.0.0.

3. Host-A has the IPv4 address and subnet mask 10.5.4.100 255.255.255.0. Which of the following IPv4 addresses would be on the same network as Host-A? (Choose all that apply)

• 10.5.4.1
• 10.5.0.1
• 10.5.4.99
• 10.0.0.98
• 10.5.100.4

Explanation: Host A is on network 10.5.4.0. Therefore, devices with the IPv4 addresses 10.5.4.1 and 10.5.4.99 are on the same network.

4. Host-A has the IPv4 address and subnet mask 172.16.4.100 255.255.0.0. Which of the following IPv4 addresses would be on the same network as Host-A? (Choose all that apply)

• 172.16.4.99
• 172.16.0.1
• 172.17.4.99
• 172.17.4.1
• 172.18.4.1

Explanation: Host A is on network 172.16.0.0. Therefore, devices with the IPv4 addresses 172.16.4.99 and 172.16.0.1 are on the same network.

5. Host-A has the IPv4 address and subnet mask 192.168.1.50 255.255.255.0. Which of the following IPv4 addresses would be on the same network as Host-A? (Choose all that apply)

• 192.168.0.1
• 192.168.0.100
• 192.168.1.1
• 192.168.1.100
• 192.168.2.1

Explanation: Host A is on network 192.168.1.0. Therefore, devices with the IPv4 addresses 192.168.1.1 and 192.168.1.100 are on the same network.

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