# ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern): Questions 456 - 461 of 472

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## Question number: 456

» Computer Application and Data Processing » Basics of Computer » Operations of a Computer

MCQ▾

### Question

Which system is a popular representative of multi-programing and multi – user systems?

### Choices

Choice (4) Response

a.

Batch operating system

b.

Distributed operating system

c.

Time – sharing system

d.

Real – time system

## Question number: 457

» Computer Application and Data Processing » Basics of Computer » Operations of a Computer

MCQ▾

### Question

For which operating system program does not require interaction?

### Choices

Choice (4) Response

a.

Real time system

b.

Time – sharing system

c.

Batch Operating system

d.

Multi programing operating system

## Question number: 458

» Computer Application and Data Processing » Basics of Computer » Operations of a Computer

MCQ▾

### Question

Real – time systems are used:

### Choices

Choice (4) Response

a.

When data processed very slowly

b.

In time critical environments where data must be processed extremely quickly

c.

When two users use one programs

d.

None of the above

## Question number: 459

» Computer Application and Data Processing » Basics of Computer » Operations of a Computer

MCQ▾

### Question

The key objective of a distributed operating system is:

### Choices

Choice (4) Response

a.

Working simultaneously with two programs

b.

Interaction of i/p and o/p

c.

Execution

d.

Transparency

## Question number: 460

MCQ▾

### Question

Let . Using Chebyshev’s inequality, find an upper bound on , where . Evaluate the bound for and .

### Choices

Choice (4) Response

a.

b.

c.

d.

All of the above

## Question number: 461

MCQ▾

### Question

While tossing 100 coin let H count the number of heads. Then what is the bound probability of using Tchebycheff’s Inequality?

### Choices

Choice (4) Response

a.

0.33

b.

0.67

c.

0.50

d.

0.75