GATE (Graduate Aptitude Test in Engineering) Computer Science: Questions 470 - 471 of 2080

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Question 470

Appeared in Year: 2010 (UGC-NET)

Question

MCQ▾

‘R is a robot of M’ means R can perform some of the tasks that otherwise M would do and R is unable to do anything else. Which of the following is the most appropriate representation to model this situation? (June Paper II)

Choices

Choice (4)Response

a.

Representation to Model this Situation: Choice A

b.

Representation to Model this Situation: Choice B

c.

Representation to Model this Situation: Choice C

d.

Question does not provide sufficient data or is vague

Question 471

Appeared in Year: 2010 (UGC-NET)

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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