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Unit 9 · Data Communication and Computer Networks Paper 2 CS · June 2024 Re-Exam

Consider the following statements:
(A) In IPv4 addressing, a block of addresses can be defined as x.y.z.t/n, in which x.y.z.t defines one of the addresses and /n defines the mask.
(B) The first address in the block can be found by setting the rightmost 32 − n bits to 0s.
(C) Class C addresses are used for multicast communication.
(D) There are five classes in IPv4 addressing.
(E) Supernetting combines several networks into one large network.
Choose the correct answer from the options given below:

Pick an option to check yourself, or open the answer below.

Show answer & explanation

Correct answer: B. (A), (B), (D) and (E) Only

Explanation

A, B, D (classes A–E) and E are true. Multicast uses class D addresses, not class C.

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