(A) In IPv4 addressing, a block of address can be define as x.y.z.t/n in which x.y.z.t define one of…
In CIDR notation x.y.z.t/n, the address is one of the block and /n gives the mask length (A), and the first address of the block is found by setting the rightmost 32 − n…
Choose your answer
(A) In IPv4 addressing, a block of address can be define as x.y.z.t/n in which x.y.z.t define one of the address and /n define the mask
(B) The first address in the block can be found by setting the rightmost 32−n bits to 0s
(C) Address of class C is used for multicast communication
(D) There are five classes in IPv4 address
(E) Supernetting combine several networks into one large network
Answer and explanation
Correct answer B
In CIDR notation x.y.z.t/n, the address is one of the block and /n gives the mask length (A), and the first address of the block is found by setting the rightmost 32 − n bits to 0 (B). Classful addressing has five classes, A to E (D), and supernetting combines several smaller networks into one larger block (E). Multicast uses Class D addresses, not Class C, so statement C is false and A, B, D and E are correct.
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UGC NET Computer Science and Applications