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Syllabus

NEC Computer · Practice

Chapters & sets

1. Basic Electrical and Electronics

Basic Electrical

Set 1106

Basic Electronics

Set 171 Set 233

2. Digital Logic and Microprocessor

Digital Logic

Set 150 Set 250 Set 350 Set 450 Set 550 Set 650 Set 749 Set 851 Set 950 Set 1050 Set 1150 Set 1232

Microprocessor

Set 150 Set 250 Set 350 Set 445 Set 550 Set 650 Set 720 Set 850 Set 969

3. Programming Language and Its Applications

Mixed chapter MCQs

Set 150 Set 249 Set 349 Set 451 Set 540

4. Computer Organization and Embedded System

Mixed chapter MCQs

Set 150 Set 249 Set 350 Set 450 Set 550 Set 650 Set 750 Set 849 Set 950 Set 1050 Set 1150

5. Concept of Computer Network and Network Security System

Basic Networking

Set 150 Set 253

Advanced Networking

Set 150 Set 250 Set 350 Set 450 Set 550 Set 655

6. Theory of Computation and Computer Graphics

Theory of Computation

Set 150 Set 250 Set 360

Computer Graphics

Set 150 Set 251 Set 350 Set 450 Set 550

7. Data Structures and Algorithm, Database System and Operating System

8. Software Engineering and Object-Oriented Analysis & Design

Mixed chapter MCQs

Set 150 Set 250 Set 350 Set 450 Set 550 Set 650 Set 750 Set 926

9. Artificial Intelligence and Neural Networks

Mixed chapter MCQs

Set 150 Set 317 Set 450 Set 550 Set 650 Set 750 Set 850 Set 932

10. Project Planning, Design and Implementation

Engineering Drawing

Set 150 Set 267

Engineering Economics

Set 168

Project Planning & Scheduling

Set 188

Project Mangement

Set 150

Engineering Professional Practice

Set 120

Engineering Regulatory Body

Set 130

Operating System Set 7

50 questions

Question 1

Most of the microcomputer’s operating systems like Apple DOS, MS DOS, and PC DOS, etc., are called disk operating systems because:

A.
They are memory resident
B.
They are initially stored on disk
C.
They are available on magnetic tapes
D.
They are partly in primary memory and partly on disk

2

50

When did IBM release the first version of the disk operating system DOS version 1.0?

A.
1981
B.
1983
C.
1982
D.
1984

Question 3

IBM released its first PC in 1981. Can you name the operating system which was most popular at that time?

A.
MS-DOS
B.
OS/360
C.
PC-DOS
D.
CP/M

Question 4

Page fault frequency in an operating system is reduced when the:

A.
Size of pages is reduced
B.
Processes tend to be I/O-bound
C.
Processes tend to be CPU-bound
D.
Locality of reference is applicable to the process

Question 5

Which of the following is true for testing and debugging?

A.
Testing checks for logical errors in the programs while debugging is a process of correcting those errors in the programs
B.
Testing detects the syntax errors in the program while debugging corrects those errors in the program
C.
Testing and debugging indicate the same thing
D.
All of the above

Question 6

If special forms are needed for printing the output, the programmer specifies these forms through:

A.
JCL
B.
Utility program
C.
IPL
D.
Load modules

Question 7

Under multiprogramming, turnaround time for short jobs is usually...... and for long jobs is slightly......

A.
Lengthened; shortened
B.
Shortened; shortened
C.
Shortened; lengthened
D.
Lengthened; lengthened

Question 8

The state transition initiated by the user process itself in an operating system is:

A.
Block
B.
Wake up
C.
Dispatch
D.
Timer run out

Question 9

Which of the following terms refers to the degree to which data in a database system are accurate and correct?

A.
Data security
B.
Data independence
C.
Data validity
D.
Data integrity

Question 10

The total time to prepare a disk drive mechanism for a block of data to be read from it is:

A.
Latency
B.
Latency plus transmission time
C.
Latency plus seek time
D.
Latency plus seek time plus transmission time

Question 11

Indicate whether the statement LDA B is a statement in:

A.
Machine language
B.
High-level language
C.
Assembly language
D.
All of the above

Question 12

Indicate which describes the term “software”:

A.
Systems programs only
B.
Both A and B
C.
Application programs only
D.
All of the printer

Question 13

Bug means:

A.
A logical error in a program
B.
A difficult syntax error in a program
C.
Documenting programs using an efficient documentation tool
D.
All of the above

Question 14

A development strategy whereby the executive control modules of a system are coded and tested first is known as:

A.
Bottom-up development
B.
Left-Right development
C.
Top-down development
D.
All of the above

Question 15

Indicate which, of the following, is not true about Nassi-Shneiderman charts:

A.
These charts are a type of graphical design tool
B.
These charts cannot represent CASE constructs
C.
These charts can represent three fundamental control structures
D.
All of the above

Question 16

Indicate which, of the following, is not true about a data flow diagram (DFD):

A.
It is a graphical representation of the flow of data through the system
B.
It is used to analyze any system or software at any level of abstraction
C.
It is a very important tool, used by system analysts and designers
D.
All of the above

Question 17

Which of the following checks cannot be carried out on the input data to a system?

A.
Consistency check
B.
Range checks
C.
Syntax check
D.
All of the above

Question 18

Which of the following is not true about documentation?

A.
Documentation of a system should be as clear and direct as possible
B.
Documentation increases the maintenance time and cost
C.
Documentation gives a better understanding of the problem
D.
All of the above

Question 19

C is:

A.
An assembly language
B.
A third-generation high-level language
C.
A machine language
D.
All of the above

Question 20

Which of the following modules does not incorporate initialization of values changed by the module?

A.
Non-reusable module
B.
Reentrant module
C.
Serially reusable module
D.
All of the above

Question 21

Which of the following statements is false?

A.
A process scheduling algorithm is preemptive if the CPU can be forcibly removed from a process
B.
Time-sharing systems generally use preemptive CPU scheduling
C.
Response times are more predictable in preemptive systems than in non-preemptive systems
D.
Real-time systems generally use non-preemptive CPU scheduling

Question 22

Indicate which, of the following, is not true about an interpreter:

A.
Interpreter generates an object program from the source program
B.
Interpreter is a kind of translator
C.
Interpreter analyzes each source statement every time it is to be executed
D.
All of the above

Question 23

Indicate which, of the following, is not true about 4GL:

A.
4GL does not support a high level of screen interaction
B.
Many database management system packages support 4GL
C.
A 4GL is a software tool which is written possibly in some third-generation language
D.
All of the above

Question 24

An algorithm is described as:

A.
A computer language
B.
A step-by-step procedure for solving a problem
C.
A branch of mathematics
D.
All of the above

Question 25

A sequence of instructions, in a computer language, to get the desired result is known as:

A.
Algorithm
B.
Program
C.
Decision table
D.
All of the above

Question 26

The strategy of allowing processes that are logically runnable to be temporarily suspended is called:

A.
Preemptive scheduling
B.
Shortest job first
C.
Non-preemptive scheduling
D.
First come first served

Question 27

Part of a program where the shared memory is accessed and which should be executed indivisibly is called:

A.
Semaphores
B.
Critical section
C.
Directory
D.
Mutual exclusion

Question 28

The technique, for sharing the time of a computer among several jobs, which switches jobs so rapidly such that each job appears to have the computer to itself is:

A.
Time sharing
B.
Time domain
C.
Time out
D.
FIFO

Question 29

The operating system manages:

A.
Memory
B.
Disks and I/O devices
C.
Processor
D.
All of the above

Question 30

A form of code that uses more than one process and processor, possibly of different types, and that may on occasion have more than one process or processor active at the same time is known as:

A.
Multiprogramming
B.
Broadcasting
C.
Multithreading
D.
Time sharing

Question 31

Assembly language:

A.
Is usually the primary user interface
B.
Requires fixed-format commands
C.
Is a mnemonic form of machine language
D.
Is quite different from the SCL interpreter

Question 32

Which of the following are the advantages of modular programming?

A.
The program is much easier to change
B.
Modules can be reused in other programs
C.
Easy debugging
D.
Easy to compile

Question 33

Which of the following can be accessed by the transfer vector approach of linking?

A.
External data segments
B.
Data located in other procedures
C.
External subroutines
D.
All of the above

Question 34

The linker:

A.
Is the same as the loader
B.
Is required to create a load module
C.
Uses source code as input
D.
Is always used before programs are executed

Question 35

Indicate which is a pre-emptive scheduling algorithm:

A.
Round-robin
B.
Priority-based
C.
Shortest-job-next
D.
All of the above

Question 36

A characteristic of an online real-time system is:

A.
More than one CPU
B.
Offline batch processing
C.
No delay in processing
D.
All of the above

Question 37

Indicate which, of the following, is the worst type of module coupling:

A.
Content coupling
B.
Control coupling
C.
No coupling
D.
All of the above

Question 38

A page fault:

A.
Is an error in a specific page
B.
Occurs when a program accesses a page of memory
C.
Is an access to a page not currently in memory
D.
Is a reference to a page belonging to another program

Question 39

In memory systems, boundary registers:

A.
Are used for temporary program variable storage
B.
Are only necessary with fixed partitions
C.
Track page boundaries
D.
Track the beginning and ending of programs

Question 40

Relocatable programs:

A.
Cannot be used with fixed partitions
B.
Can be loaded almost anywhere in memory
C.
Do not need a linker
D.
Can be loaded only at one specific location

Question 41

The FIFO algorithm:

A.
Executes first the job that last entered the queue
B.
Executes first the job that first entered the queue
C.
Executes first the job that has been in the queue the longest
D.
Executes first the job with the least processor needs

Question 42

The user interface:

A.
Is relatively unimportant
B.
Is slanted toward novice users
C.
Supports both novice and experienced users
D.
Is easy to provide, even with good support

Question 43

Memory management is:

A.
Not used in modern operating systems
B.
Replaced with virtual memory on current systems
C.
Not used on multiprogramming systems
D.
Critical for even the simplest operating systems

Question 44

The practice of “bundling” refers to:

A.
Selling computers alone
B.
Selling peripheral devices with computers
C.
Selling software to run on computers
D.
Giving away software with a computer purchase

Question 45

The primary purpose of an operating system is to:

A.
Make computers easier to use
B.
Keep system programmers employed
C.
Make the most efficient use of the hardware
D.
Allow people to use the computers

Question 46

Multiprogramming systems:

A.
Are easier to develop than single programming systems
B.
Execute each job faster
C.
Execute more jobs in the same time period
D.
Are used only on large mainframe computers

Question 47

Spooling is most beneficial in a multiprogramming environment where:

A.
Most jobs are CPU-bound
B.
Most jobs are I/O-bound
C.
Jobs are evenly divided as I/O-bound and CPU-bound
D.
There is limited primary memory and need for secondary memory

Question 48

Software that measures, monitors, analyzes, and controls real-world events is called:

A.
System software
B.
Scientific software
C.
Real-time software
D.
Business software

Question 49

Object modules generated by assemblers that contain unresolved external references are resolved for two or more object modules by a/an:

A.
Operating system
B.
Linker
C.
Loader
D.
Compiler

Question 50

Which of the following is false about disk when compared to main memory?

A.
Non-volatile
B.
Lower price per bit
C.
Longer storage capacity
D.
Faster

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