Computer Science - Networking - Discussion

27. 

You have a network ID of 134.57.0.0 with 8 subnets. You need to allow the largest possible number of host IDs per subnet. Which subnet mask should you assign?

[A]. 255.255.224.0
[B]. 255.255.240.0
[C]. 255.255.248.0
[D]. 255.255.252.0
[E]. 255.255.255.255

Answer: Option B

Explanation:

No answer description available for this question.

Raj Gopal said: (Aug 24, 2015)  
A is right answer since three bits are borrowed (128+64+32) = 224.

Shewangizaw Bogale said: (Jan 5, 2017)  
Yes, A is the Only correct Answer.

Shewangizaw Bogale said: (Feb 18, 2017)  
8 subnets, 8 = 2 ^3, so the network bits(N) is = 3, so the subnet mask is = 11100000 in binary and 224 in decimal notation.

So, the correct Answer is A . 255.255.224.0.

Iglooroy said: (Apr 20, 2017)  
The correct Answer is A.

Sandeep Singh said: (Apr 22, 2017)  
2^n-2= subnet for eight we need 4 bits i think but 255.255.

255.255.240 is the answer.

Obaid said: (Sep 13, 2018)  
@Sandeep.

2^n-2 is the formula of valid hosts not for the subnet, so n=3 is correct and A is a valid answer.

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