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Syllabus

NEC Electronics · Practice

Chapters & sets

1. Basic Electrical and Electronics Engineering

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 Systems

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. Computer Networks and Network Security

Basic Networking

Set 150 Set 253

Advanced Networking

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

10. Project Planning, Design and Implementation

Mixed chapter MCQs Set 2

49 questions

Question 1

Hardwired control unit is implemented by:

A.
Software routines
B.
Stacks
C.
Logic circuits
D.
Registers

Question 2

Control unit operation is performed:

A.
Hardwired control only
B.
Micro program control only
C.
Hardwired or micro program control
D.
None of the above

Question 3

Micro instructions are stored in the:

A.
Internal storage
B.
Cache
C.
External storage
D.
Control memory

Question 4

The registers are essential to instruction execution:

A.
Program counter
B.
Memory buffer register
C.
Instruction register
D.
All of the above

Question 5

In immediate addressing the operand is placed:

A.
In the CPU register
B.
After op-code in the instruction
C.
In the memory
D.
In the stack

Question 6

The most common addressing technique employed by a CPU is:

A.
Immediate
B.
Indirect
C.
Direct
D.
All of the above

Question 7

CPU does not perform the operation:

A.
Data transfer
B.
Arithmetic operation
C.
Logic operation
D.
All of the above

Question 8

Branch instructions are used to:

A.
Manipulate numeric data
B.
Transfer control
C.
Logical data
D.
Manage data

Question 9

Arithmetic instructions provide:

A.
Data processing capabilities
B.
Computational capabilities
C.
Data storage capabilities
D.
Control capabilities

Question 10

The ALU of a central processing unit does the essential math work for the computer. What does the control unit do?

A.
Communicates its results
B.
Activates the output device
C.
Monitors the flow of information
D.
Control the printer

Question 11

Which type of computers use the 8-bit code called EBCDIC?

A.
Minicomputers
B.
Mainframe
C.
Microcomputers
D.
Supercomputers

Question 12

The ALU of a computer responds to the commands coming from:

A.
Primary memory
B.
External memory
C.
Control section
D.
Cache memory

Question 13

The microprocessor of a computer cannot operate on any information if that information is not in its:

A.
Secondary storage
B.
ALU
C.
Main storage
D.
Logic unit

Question 14

Who coordinates the sequencing of events within the central processor or computer?

A.
Logic unit
B.
Register unit
C.
Arithmetical unit
D.
Control unit

Question 15

A computer program that converts an entire program into machine language at one time is called a/an:

A.
Interpreter
B.
Compiler
C.
Simulator
D.
Commander

Question 16

What is meant by a dedicated computer?

A.
Which is used by one person only
B.
Which is assigned one and only one task
C.
Which does one kind of software
D.
Which is meant for application software only

Question 17

A complete microcomputer system consists of:

A.
Microprocessor
B.
Peripheral equipment
C.
Memory
D.
All of the above

Question 18

Which major development led to the production of microcomputers?

A.
Magnetic tapes
B.
Logic gates
C.
Floppy disks
D.
Integrated circuits

Question 19

The word size of a microprocessor refers to:

A.
The amount of information that can be stored in a byte
B.
The amount of information that can be stored in a cycle
C.
The number of machine operations performed in a second
D.
The maximum length of an English word that can be input to a computer

Question 20

One computer that is not considered a portable computer is:

A.
Minicomputer
B.
Notebook computer
C.
Laptop computer
D.
All of the above

Question 21

Which of the following require large computer memory?

A.
Imaging
B.
Voice
C.
Graphics
D.
All of the above

Question 22

A computer enthusiast is:

A.
User friendly
B.
Computer
C.
A hacker
D.
All of the above

Question 23

Most of the inexpensive personal computers do not have any disk or diskette drive. What is the name of such computers?

A.
Home computers
B.
Dedicated computers
C.
Diskless computers
D.
None of the above

Question 24

A computer has no more sense than a light

A.
Bulb
B.
Switch
C.
Pen
D.
Pad

Question 25

How many address lines are needed to address each memory locations in a 2048x4 memory chip?

A.
10
B.
8
C.
11
D.
12

Question 26

The stack pointer in the 8085 microprocessor is a

A.
16-bit register that points to stack memory locations
B.
16-bit accumulator
C.
Memory locations in the stack
D.
Flag register used for the stack

Question 27

Which of the following registers is used to keep track of address of the memory location where the next instruction is located?

A.
Memory address register
B.
Instruction register
C.
Memory data register
D.
Program counter

Question 28

Which of the following registers is loaded with the content of memory location pointed by the PC?

A.
Memory address register
B.
Instruction register
C.
Memory data register
D.
Program counter

Question 29

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 30

Super computers are primarily useful for

A.
Input-output intensive processing
B.
Data-retrieval operations
C.
Mathematical-intensive scientific applications
D.
All of the above

Question 31

The heart of any computer is the

A.
CPU
B.
I/O units
C.
Memory
D.
Disks

Question 32

The central processing unit (CPU) consists of:

A.
Input, output and processing
B.
Control unit, primary storage, and secondary storage
C.
Control unit, arithmetical logic unit, and primary storage
D.
None of the above

Question 33

Which is not an input device?

A.
CRT
B.
Optical scanners
C.
Voice recognition
D.
COM (Computer Output Microfilm)

Question 34

The ascending order of a data hierarchy is:

A.
Bit-bytes-field-record-file-database
B.
Bytes-bit-fields-record-file-database
C.
Bit-bytes-record-field-file-database
D.
Bytes-bit-record-fields-file-database

Question 35

What is the control unit's function in the CPU?

A.
To transfer data to primary storage
B.
To store program instruction
C.
To perform logic operations
D.
To decode program instructions

Question 36

The most common input device used today is

A.
Motherboard
B.
Scanner
C.
Track ball
D.
Keyboard

Question 37

Which is not a factor when categorizing a computer?

A.
Speed of the output device
B.
Amount of main memory the CPU can use
C.
Cost of the system
D.
Where is was purchased

Question 38

Which is not true for primary storage?

A.
Information must be transferred to primary storage
B.
It is relatively more expensive
C.
It allows very fast access to data
D.
All of the above

Question 39

Which is the most powerful type of computer?

A.
Microcomputer
B.
Mainframe computer
C.
Minicomputer
D.
Super computer

Question 40

Which kind of storage device can be carried around?

A.
Floppy disk
B.
System cabinet
C.
Hard disk
D.
Hard disk drive

Question 41

Which kind of devices allows the user to add components and capabilities to a computer system?

A.
System board
B.
Input devices
C.
Storage devices
D.
Expansion slots

Question 42

Group of instructions that direct a computer is called

A.
Storage
B.
Logic
C.
Memory
D.
Program

Question 43

The basic components of a modern digital computer are:

A.
Input device
B.
Central processing unit
C.
Output device
D.
All of the above

Question 44

A collection of eight bits is called:

A.
Byte
B.
Record
C.
Word
D.
File

Question 45

Processor of all computer, whether micro, mini or mainframe must have

A.
ALU
B.
Control unit
C.
Primary storage
D.
All of the above

Question 46

Where does a computer add and compare data?

A.
Hard disk
B.
CPU chip
C.
Floppy disk
D.
Memory chip

Question 47

If a particular idea can be implemented in hardware or software, the factor(s) that favor hardware implementation is/are

A.
Cost-effectiveness
B.
Reliability
C.
Speed of operation
D.
Frequent changes expected

Question 48

Tera is 2 to the power of

A.
32
B.
40
C.
30
D.
25

Question 49

Von Neumann architecture is

A.
SISD
B.
MIMD
C.
SIMD
D.
MISD

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