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Subnetting - Technical MCQs

Q1:

A network administrator is connecting hosts A and B directly through their Ethernet interfaces, as shown in the illustration. Ping attempts between the hosts are unsuccessful. What can be done to provide connectivity between the hosts?
  1. A crossover cable should be used in place of the straight-through cable.
  2. A rollover cable should be used in place of the straight-through cable.
  3. The subnet masks should be set to 255.255.255.192.
  4. A default gateway needs to be set on each host.
  5. The subnet masks should be set to 255.255.255.0.

A 1 only

B 2 only

C 3 and 4 only

D 1 and 5 only

E 2 and 5 only

ANS:D - 1 and 5 only

First, if you have two hosts directly connected, as shown in the graphic, then you need a crossover cable. A straight-through cable won't work. Second, the hosts have different masks, which puts them in different subnets. The easy solution is just to set both masks to 255.255.255.0 (/24).