State whether True or False? I. The default subnet mask for Class-C IP address…

2018

State whether True or False?
I. The default subnet mask for Class-C IP address is 255.255.255.x.
II. Very first four bits of the first octet in Class-D IP addresses are set to 1100.

  1. A.

    I-True, II-False

  2. B.

    I-True, II-True

  3. C.

    I-False, II-True

  4. D.

    I-False, II-False

Attempted by 165 students.

Show answer & explanation

Correct answer: A

Statement I is True because the default subnet mask for Class-C addresses uses a 24-bit network prefix, typically written as 255.255.255.0. Statement II is False because Class-D addresses are reserved for multicast and begin with the binary prefix 1110, not 1100.

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