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Your router has the following IP address an Ethenet0: 172.16.2.1/23. Which of the following can be valid host IDs on the LAN interface attached to the router? 1. 172.16.1.100 2. 172.16.1.198 3. 172.16.2.255 4. 172.16.3.0

Your router has the following IP address an Ethenet0: 172.16.2.1/23. Which of the following can be valid host IDs on the LAN interface attached to the router? 1. 172.16.1.100 2. 172.16.1.198 3. 172.16.2.255 4. 172.16.3.0 Correct Answer 3 and 4 only

Concept:

a.b.c.d/NID

Therefore 23 bits are in NID and only 9 bits for Host id.

Explanation:

Last two-byte of IP address is represented in binary

Ethernet: 172.16.2.1/23

Range of IP address: 172.16.00000010.0000000 to 172.16.0000011.11111111

Range of IP address: 172.16.2.0 to 172.16.3.255

First and last IP address is reserved

Valid Host IP address: 172.16.2.1 to 172.16.3.254

Statement 1: 172.16.1.100

It is not valid since it does not fall in the range

Statement 2: 172.16.1.198

It is not valid since it does not fall in the range

Statement 3: 172.16.2.255

It is valid since it does fall in the valid range

Statement 4:172.16.3.0

It is valid since it does fall in the valid range

Hence option 3 is the correct answer.

Important Point:

NID stands for network ID.

Related Questions

Your router has the following IP address on Ethernet: 172.16.2.1/23. Which of the following can be valid host IDs on the LAN interface attached to the router?            i) 172.16.1.100 ii) 172.16.1.198 iii) 172.16.2.255 iv) 172.16.3.0
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