Home » Cisco » 200-120 » Which subnet address should this network use to provide enough usable addresses while wasting the fewest addresses?
Refer to the exhibit.
A new subnet with 60 hosts has been added to the network. Which subnet address should this network use to provide enough usable addresses while wasting the fewest addresses?
A. 192.168.1.56/26
B. 192.168.1.56/27
C. 192.168.1.64/26
D. 192.168.1.64/27
Correct Answer: C
Explanation/Reference:
Explanation:
A subnet with 60 host is 2*2*2*2*2*2 = 64 -2 == 62 6 bits needed for hosts part. Therefore subnet bits are 2 bits (8-6) in fourth octet.
8bits+ 8bits+ 8bits + 2bits = /26
/26 bits subnet is 24bits + 11000000 = 24bits + 192
256 – 192 = 64
0 -63
64 – 127
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why not answer A
Hi!
That’s because the address on answer A would overlap the address on R3’s interface.