# Computer Arithmetic-Representation of Numbers [NTA-NET (Based on NTA-UGC) Computer Science (Paper-II)]: Questions 1 - 4 of 44

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## Question number: 1

» Computer Arithmetic » Representation of Numbers » Octal, Hex, Decimal, and Binary

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Appeared in Year: 2010

MCQ▾

### Question

What is decimal equivalent of ? (June Paper II)

### Choices

Choice (4)Response

a.

20.2

b.

22.2

c.

22.0

d.

21.2

## Question number: 2

» Computer Arithmetic » Representation of Numbers » 2'S Complement and 1'S Complement Arithmetic

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Appeared in Year: 2010

MCQ▾

### Question

The value of the following expression is (December Paper II)

### Choices

Choice (4)Response

a.

5.75

b.

2.95

c.

1.4875

d.

5

## Question number: 3

» Computer Arithmetic » Representation of Numbers » Octal, Hex, Decimal, and Binary

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Appeared in Year: 2010

MCQ▾

### Question

The decimal number equivalent of is (December Paper II)

### Choices

Choice (4)Response

a.

b.

c.

2095.0937

d.

## Question number: 4

» Computer Arithmetic » Representation of Numbers » Octal, Hex, Decimal, and Binary

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Appeared in Year: 2010

MCQ▾

### Question

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.

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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