Latest notices:

NEC licence exam preparation, made clearer.Practice questions, syllabus guides, and timed mocks for Nepal engineers.New study resources are added regularly.

Login Sign up

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 5

50 questions

Question 1

The advantage(s) of incorporating the macro processor into Pass 1 is (are):

A.
Many functions do not have to be implemented twice
B.
Functions are combined and it is not necessary to create intermediate files as output from the macro processor and input to the assembler
C.
More flexibility is available to the programmer in that he may use all the features of the assembler in conjunction with macros
D.
All of the above

50

Question 2

The macro processor must perform:

A.
Recognize macro definitions and macro calls
B.
Save the macro definitions
C.
Expand macro calls and substitute arguments
D.
All of the above

Question 3

In which way(s) a macro processor for assembly language can be implemented:

A.
Independent two-pass processor
B.
Independent one-pass processor
C.
Processor incorporated into Pass 1 of a standard two-pass assembler
D.
All of the above

Question 4

Which of the following functions is(are) performed by the loader?

A.
Allocate space in memory for the programs and resolve symbolic references between object decks
B.
Adjust all address-dependent locations, such as address constants, to correspond to the allocated space
C.
Physically place the machine instructions and data into memory
D.
All of the above

Question 5

When a computer is first turned on or restarted, a special type of absolute loader is executed, called a:

A.
“Compile and Go” loader
B.
Bootstrap loader
C.
Boot loader
D.
Relating loader

Question 6

In MS-DOS 5.0, which is the number that acts as a code to uniquely identify the software?

A.
MS
B.
DOS
C.
MS DOS
D.
5.0

Question 7

The higher versions of the operating systems are so written that programs designed for earlier versions can still be run. What is it called?

A.
Upgradability
B.
Universality
C.
Upward mobility
D.
Upward compatibility

Question 8

What is the name of the process of initializing a microcomputer with its operating system?

A.
Cold booting
B.
Warm booting
C.
Booting
D.
Root recording

Question 9

A hardware device that is capable of executing a sequence of instructions is known as:

A.
CPU
B.
ALU
C.
CU
D.
Processor

Question 10

The function(s) performed by the paging software is(are):

A.
Implementation of the access environment for all programs in the system
B.
Management of the physical address space
C.
Sharing and protection
D.
All of the above

Question 11

The file level is a descriptor containing all the information which would be required:

A.
To connect the file to a program
B.
To guard against the destruction of the file inadvertently or deliberately by another program
C.
To facilitate easy creation, storage, and access of files
D.
Both (A) and (B)

Question 12

The task(s) of the lexical analysis phase is(are):

A.
To parse the source program into the language
B.
To build a literal table and an identifier table
C.
To build a uniform symbol table
D.
All of the above

Question 13

Which is a permanent database in the general model of a compiler?

A.
Literal Table
B.
Terminal Table
C.
Identifier Table
D.
Source code

Question 14

Which table is a permanent database that has an entry for each terminal symbol?

A.
Terminal Table
B.
Identifier Table
C.
Literal Table
D.
Reductions

Question 15

While running DOS on a PC, which command would be used to duplicate the entire diskette?

A.
COPY
B.
CHKDSK
C.
DISKCOPY
D.
TYPE

Question 16

Which of the following filename extensions suggests that the file is a backup copy of another file?

A.
TXT
B.
COM
C.
BAS
D.
BAK

Question 17

While working with MS-DOS, which command will you use to transfer a specific file from one disk to another?

A.
DISKCOPY
B.
RENAME
C.
COPY
D.
FORMAT

Question 18

With MS-DOS, which command will divide the surface of the blank floppy disk into sectors and assign a unique address to each one?

A.
FORMAT command
B.
VER command
C.
FAT command
D.
CHKDSK command

Question 19

The functions of the Storage Assignment is(are):

A.
To assign storage to all variables referenced in the source program
B.
To assign storage to all temporary locations that are necessary for intermediate results
C.
To assign storage to literals, and to ensure that the storage is allocated and appropriate locations are initialized
D.
All of the above

Question 20

A non-relocatable program is one which:

A.
Cannot be made to execute in any area of storage other than the one designated for it at the time of its coding or translation
B.
Consists of a program and relevant information for its relocation
C.
Can itself perform the relocation of its address-sensitive portions
D.
All of the above

Question 21

A relocatable program form is one which:

A.
Cannot be made to execute in any area of storage other than the one designated for it at the time of its coding or translation
B.
Consists of a program and relevant information for its relocation
C.
Can itself perform the relocation of its address-sensitive portions
D.
All of the above

Question 22

A self-relocating program is one which:

A.
Cannot be made to execute in any area of storage other than the one designated for it at the time of its coding or translation
B.
Consists of a program and relevant information for its relocation
C.
Can itself perform the relocation of its address-sensitive portions
D.
All of the above

Question 23

The term "operating system" means:

A.
A set of programs which controls computer working
B.
The way a computer operator works
C.
Conversion of high-level language into machine code
D.
The way a floppy disk drive operates

Question 24

Which of the following software types is used to simplify using system software?

A.
Spreadsheet
B.
Timesharing
C.
Operating environment
D.
Multitasking

Question 25

Which of the following is not applications software?

A.
Word processing
B.
UNIX
C.
Spreadsheet
D.
Desktop publishing

Question 26

Which of the following types of software should you use if you often need to create, edit, and print documents?

A.
Word processing
B.
UNIX
C.
Spreadsheet
D.
Desktop publishing

Question 27

Which of the following will determine your choice of systems software for your computer?

A.
Is the applications software you want to use compatible with it?
B.
Is it expensive?
C.
Is it compatible with your hardware?
D.
Both (A) and (C)

Question 28

Terminal Table:

A.
Contains all constants in the program
B.
A permanent table of decision rules in the form of patterns for matching with the uniform symbol table to discover syntactic structure
C.
Consists of a full or partial list of the token’s as they appear in the program. Created by lexical analysis and used for syntax analysis and interpretation
D.
A permanent table which lists all key words and special symbols of the language in symbolic form

Question 29

Assembly code database is associated with:

A.
Assembly language version of the program which is created by the code generation phase and is input to the assembly phase
B.
A permanent table of decision rules in the form of patterns for matching with the uniform symbol table to discover syntactic structure
C.
Consists of a full or partial list of the token’s as they appear in the program. Created by lexical analysis and used for syntax analysis and interpretation
D.
A permanent table which lists all key words and special symbols of the language in symbolic form

Question 30

The table created by lexical analysis to describe all literals used in the source program is:

A.
Terminal Table
B.
Identifier Table
C.
Literal Table
D.
Reductions

Question 31

The functions of the syntax phase are:

A.
To recognize the major constructs of the language and to call the appropriate action routines that will generate the intermediate form or matrix for these constructs
B.
To build a literal table and an identifier table
C.
To build a uniform symbol table
D.
To parse the source program into the basic elements or tokens of the language

Question 32

In an absolute loading scheme, which loader function is accomplished by the assembler?

A.
Reallocation
B.
Linking
C.
Allocation
D.
Loading

Question 33

In an absolute loading scheme, which loader function is accomplished by the loader?

A.
Reallocation
B.
Linking
C.
Allocation
D.
Loading

Question 34

The advantages inherent to using high-level language are:

A.
Fewer people, less management, and shorter transition in learning time
B.
Improved debugging capability, and superior documentation
C.
A greater degree of machine independence
D.
All of the above

Question 35

The action of parsing the source program into the proper syntactic classes is known as:

A.
Syntax analysis
B.
Interpretation
C.
Lexical analysis
D.
General syntax analysis

Question 36

In analyzing the compilation of a PL/I program, the term “Lexical analysis” is associated with:

A.
Recognition of basic syntactic constructs through reductions
B.
Recognition of basic elements and creation of uniform symbols
C.
Creation of more optional matrix
D.
Use of macro processor to produce more optimal assembly code

Question 37

In analyzing the compilation of a PL/I program, the term “Machine independent optimization” is associated with:

A.
Recognition of basic syntactic constructs through reductions
B.
Recognition of basic elements and creation of uniform symbols
C.
Creation of more optional matrix
D.
Use of macro processor to produce more optimal assembly code

Question 38

In analyzing the compilation of a PL/I program, the description “resolving symbolic address (labels) and generating machine language” is associated with:

A.
Assembly and output
B.
Storage assignment
C.
Code generation
D.
Syntax analysis

Question 39

In analyzing the compilation of a PL/I program, the description “creation of more optimal matrix” is associated with:

A.
Assembly and output
B.
Syntax analysis
C.
Code generation
D.
Machine independent optimization

Question 40

Which of the following is not a part of the operating system?

A.
Supervisor
B.
Job-control program
C.
Performance monitor
D.
Input/output control program

Question 41

Which of the following is not an advantage of multiprogramming?

A.
Increased throughput
B.
Shorter response time
C.
Decreased operating system overhead
D.
Ability to assign priorities to jobs

Question 42

In which addressing mode the contents of a register specified in the instruction are first decremented, and then these contents are used as the effective address of the operands?

A.
Index addressing
B.
Auto increment
C.
Indirect addressing
D.
Auto decrement

Question 43

In which addressing mode, the effective address of the operand is generated by adding a constant value to the contents of a register?

A.
Absolute mode
B.
Immediate mode
C.
Indirect mode
D.
Index mode

Question 44

In what modules, multiple instances of execution will yield the same result even if one instance has not terminated before the next one has begun?

A.
Non-reusable module
B.
Reentrant module
C.
Serially reusable module
D.
Recursive module

Question 45

What is the name given to all the programs inside the computer which makes it usable?

A.
Application software
B.
Firmware
C.
System software
D.
Shareware

Question 46

A translator which reads an entire program written in a high-level language and converts it into machine language code is:

A.
Assembler
B.
Compiler
C.
Translator
D.
System software

Question 47

Which of the following is helpful in evaluating applications software that will best suit your needs?

A.
Recommendations by other users
B.
Objective software reviews
C.
Computer magazines
D.
All of the above

Question 48

If you want to execute more than one program at a time, the system software you are using must be capable of:

A.
Word processing
B.
Compiling
C.
Virtual memory
D.
Multitasking

Question 49

Which of the following types of software must you have in main memory in order to use your keyboard?

A.
Word processing
B.
Spreadsheet
C.
System
D.
Applications

Question 50

Which of the following might be used to convert high-level language instructions into machine language?

A.
System software
B.
An operating environment
C.
Application software
D.
An interpreter

Practice another set Take a test on this chapter →