Digital Logic-Number Representation and Computer Arithmetic [GATE (Graduate Aptitude Test in Engineering) Computer Science & IT (CS)]: Questions 1 - 5 of 66

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Question 1

Question MCQ▾

To correct d single bit errors, a Hamming distance of ________ is required

Choices

Choice (4)Response

a.

2d + 3

b.

d + 3

c.

d + 1

d.

All of the above

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Question 2

Question MCQ▾

The equivalent in excess-3 code for decimal 423 is -

Choices

Choice (4)Response

a.

845

b.

756

c.

510

d.

Question does not provide sufficient data or is vague

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Question 3

Appeared in Year: 2010

Question MCQ▾

What is decimal equivalent of ? (June Paper II)

Choices

Choice (4)Response

a.

20.2

b.

22.2

c.

22.0

d.

21.2

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Question 4

Appeared in Year: 2010

Question MCQ▾

The decimal number equivalent of is (December Paper II)

Choices

Choice (4)Response

a.

b.

c.

2095.0937

d.

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Question 5

Appeared in Year: 2010

Question MCQ▾

For your ATM debit card, you have a 4-decimal-digit personal secret code. In the absence of any clue, a brute-force attack takes time- ‘t’ to crack the code on an ATM terminal. Therefore ‘t’ is the secure-time for a customer to report in case the card is misplaced. Your Bank has decided to facilitate an increased secure-time. Out of the following, which option should provide the largest rise in the value of ‘t’ ? (June Paper II)

Choices

Choice (4)Response

a.

Instead of 4-decimal-digits, maintain the personal secret code in 4-hexadecimal-digits.

b.

Instead of 4-decimal digits, maintain a 5-decimal-digit personal secret code.

c.

Reduce the processing speed of the ATM terminals to the half of their current speed.

d.

All of the above

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