JUNE 2012 - PAPER II

34. Check sum used along with each packet computes the sum of the data, where data is treated as a sequence of

(A) Integer
(B) Character
(C) Real numbers
(D) Bits

Ans:-B

Explanation:- Check sum is the error detecting mechanism when data is treated as a sequence of character. Parity is the mechanism used when data is treated as a sequence of bits.

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35. If an integer needs two bytes of storage, then the maximum value of a signed integer is (A) 2¹⁶ – 1
(B) 2¹⁵ – 1
(C) 2¹⁶
(D) 2¹⁵

Ans:-B

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36.Which of the following logic families is well suited for high-speed operations ?

(A) TTL
(B) ECL
(C) MOS
(D) CMOS

Ans:-B

Explanation:- ECL stands for Emitter-Coupled Logic. It is designed for extremely high speed application. It is well suited for large mainframe computer that require high number of operation per second.

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