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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

Advanced Networking Set 3

50 questions

Question 1

How many bits are used for a cyclic redundancy check (CRC) in a network?

A.
1 bit
B.
2 bits
C.
Depends on the number of bits in the data being transmitted
D.
4 bits

Question 2

50

How many bits are used for forward error correction (FEC) in a network?

A.
1 bit
B.
2 bits
C.
Depends on the number of bits in the data being transmitted
D.
4 bits

Question 3

What is the main function of ARP in a network?

A.
To map IP addresses to physical addresses (MAC addresses)
B.
To provide fast transmission of data
C.
To provide secure transmission of data
D.
To provide efficient transmission of data

Question 4

What type of addresses does ARP resolve in a network?

A.
IP addresses
B.
MAC addresses
C.
Both IP and MAC addresses
D.
None of these

Question 5

What is the main use of ARP in a network?

A.
To allow communication between different devices on a network
B.
To provide fast transmission of data
C.
To provide secure transmission of data
D.
To provide efficient transmission of data

Question 6

How does ARP work in a network?

A.
By maintaining a cache (or table) of mappings between IP addresses and MAC addresses
B.
By providing fast transmission of data
C.
By providing secure transmission of data
D.
By providing efficient transmission of data

Question 7

What happens if the ARP cache does not have an entry for a particular IP address in a network?

A.
ARP sends a broadcast message to all devices on the network to resolve the mapping
B.
ARP provides fast transmission of data
C.
ARP provides secure transmission of data
D.
ARP provides efficient transmission of data

Question 8

How often does the ARP cache get updated in a network?

A.
Whenever a new mapping is added or an existing mapping is changed
B.
Every hour
C.
Every day
D.
Every week

Question 9

What is the main function of the Network layer in a computer network?

A.
To provide addressing and routing of data between devices
B.
To provide fast transmission of data
C.
To provide secure transmission of data
D.
To provide efficient transmission of data

Question 10

What is an Internet address in the context of the Network layer?

A.
A unique identifier for a device on the Internet
B.
A fast transmission of data
C.
A secure transmission of data
D.
An efficient transmission of data

Question 11

What is a classful address in the context of the Network layer?

A.
An addressing scheme where the address is divided into classes based on the size of the network
B.
A fast transmission of data
C.
A secure transmission of data
D.
An efficient transmission of data

Question 12

What is the main function of subnetting in the Network layer?

A.
To divide a large network into smaller sub-networks
B.
To provide fast transmission of data
C.
To provide secure transmission of data
D.
To provide efficient transmission of data

Question 13

What is an example of a routing protocol in the Network layer?

A.
RIP
B.
OSPF
C.
BGP
D.
All of the above

Question 14

What is the difference between unicast and multicast routing protocols in the Network layer?

A.
Unicast is used for one-to-one communication while multicast is used for one-to-many communication
B.
Unicast is used for fast transmission of data while multicast is used for secure transmission of data
C.
Unicast is used for efficient transmission of data while multicast is used for reliable transmission of data
D.
None of these

Question 15

What is an example of a routing algorithm in the Network layer?

A.
Shortest path algorithm
B.
Flooding
C.
Distance vector routing
D.
All of the above

Question 16

What is the main function of ARP in the Network layer?

A.
To map IP addresses to physical addresses (MAC addresses)
B.
To provide fast transmission of data
C.
To provide secure transmission of data
D.
To provide efficient transmission of data

Question 17

What is the main function of RARP in the Network layer?

A.
To map physical addresses (MAC addresses) to IP addresses
B.
To provide fast transmission of data
C.
To provide secure transmission of data
D.
To provide efficient transmission of data

Question 18

What is the main function of IP in the Network layer?

A.
To provide addressing and routing of data between devices
B.
To provide fast transmission of data
C.
To provide secure transmission of data
D.
To provide efficient transmission of data

Question 19

What is the main function of ICMP in the Network layer?

A.
To provide error reporting and control messages in IP networks
B.
To provide fast transmission of data
C.
To provide secure transmission of data
D.
To provide efficient transmission of data

Question 20

What is IPv6 in the context of the Network layer?

A.
The latest version of the Internet Protocol that replaces IPv4
B.
A fast transmission of data
C.
A secure transmission of data
D.
An efficient transmission of data

Question 21

What is the main difference between the packet format in IPv4 and IPv6?

A.
IPv6 uses a larger packet size compared to IPv4
B.
IPv6 uses a smaller packet size compared to IPv4
C.
IPv6 uses the same packet size as IPv4
D.
None of these

Question 22

What are extension headers in IPv6?

A.
Additional headers that can be used to carry optional information in IPv6 packets
B.
A fast transmission of data
C.
A secure transmission of data
D.
An efficient transmission of data

Question 23

What is the main purpose of the transition from IPv4 to IPv6?

A.
To address the depletion of IPv4 addresses and provide more addresses for the growing Internet
B.
To provide fast transmission of data
C.
To provide secure transmission of data
D.
To provide efficient transmission of data

Question 24

What is multicasting in the context of the Network layer?

A.
The delivery of a single message to multiple recipients simultaneously
B.
The delivery of multiple messages to a single recipient simultaneously
C.
The delivery of a single message to a single recipient simultaneously
D.
None of these

Question 25

What is the main advantage of multicasting in the Network layer?

A.
It reduces the amount of network traffic and improves scalability
B.
It provides fast transmission of data
C.
It provides secure transmission of data
D.
It provides efficient transmission of data

Question 26

How does multicasting in the Network layer work?

A.
By using a multicast address to identify the recipients of the message
B.
By using a broadcast address to identify the recipients of the message
C.
By using a unicast address to identify the recipients of the message
D.
None of these

Question 27

What is the main difference between unicast and multicast in the Network layer?

A.
Unicast is used for one-to-one communication while multicast is used for one-to-many communication
B.
Unicast is used for fast transmission of data while multicast is used for secure transmission of data
C.
Unicast is used for efficient transmission of data while multicast is used for reliable transmission of data
D.
None of these

Question 28

What is the main advantage of using multicast over unicast in the Network layer?

A.
It reduces the amount of network traffic and improves scalability
B.
It provides faster transmission of data compared to unicast
C.
It provides more secure transmission of data compared to unicast
D.
It provides more efficient transmission of data compared to unicast

Question 29

What is an IP address in a computer network?

A.
A unique identifier for a device on a network
B.
A fast transmission of data
C.
A secure transmission of data
D.
An efficient transmission of data

Question 30

What are the two main types of IP addresses?

A.
IPv4 and IPv6
B.
MAC and IP
C.
Physical and logical
D.
None of these

Question 31

What is the main difference between IPv4 and IPv6 addresses?

A.
IPv6 addresses are longer and provide more address space compared to IPv4 addresses
B.
IPv4 addresses are faster compared to IPv6 addresses
C.
IPv4 addresses are more secure compared to IPv6 addresses
D.
IPv4 addresses are more efficient compared to IPv6 addresses

Question 32

What is the maximum number of IP addresses that can be assigned using IPv4?

A.
4.3 billion
B.
4.3 million
C.
4.3 trillion
D.
4.3 quadrillion

Question 33

What is the main purpose of subnetting in IP addressing?

A.
To divide a large network into smaller sub-networks
B.
To provide fast transmission of data
C.
To provide secure transmission of data
D.
To provide efficient transmission of data

Question 34

What is a broadcast address in IP addressing?

A.
An address used to send a message to all devices on a network
B.
An address used for fast transmission of data
C.
An address used for secure transmission of data
D.
An address used for efficient transmission of data

Question 35

What is a private IP address in IP addressing?

A.
An IP address that can only be used within a private network and not on the Internet
B.
An IP address that can be used on the Internet and private networks
C.
An IP address used for fast transmission of data
D.
An IP address used for secure transmission of data

Question 36

What is a public IP address in IP addressing?

A.
An IP address that can be used on the Internet and private networks
B.
An IP address that can only be used within a private network and not on the Internet
C.
An IP address used for fast transmission of data
D.
An IP address used for secure transmission of data

Question 37

What is DHCP in IP addressing?

A.
A protocol used to dynamically assign IP addresses to devices on a network
B.
A fast transmission of data
C.
A secure transmission of data
D.
An efficient transmission of data

Question 38

What is IPv4 in the context of computer networking?

A.
The fourth version of the Internet Protocol that provides addressing and routing of data between devices
B.
A fast transmission of data
C.
A secure transmission of data
D.
An efficient transmission of data

Question 39

What is the maximum number of IP addresses that can be assigned using IPv4?

A.
4.3 billion
B.
4.3 million
C.
4.3 trillion
D.
4.3 quadrillion

Question 40

What is the format of an IPv4 address?

A.
A 32-bit address represented in dotted decimal notation
B.
A 64-bit address represented in dotted decimal notation
C.
A 128-bit address represented in dotted decimal notation
D.
None of these

Question 41

What is a subnet mask in IPv4?

A.
A 32-bit value used to define the portion of an IP address that represents the network address and the portion that represents the host address
B.
A fast transmission of data
C.
A secure transmission of data
D.
An efficient transmission of data

Question 42

What is the main purpose of subnetting in IPv4?

A.
To divide a large network into smaller sub-networks
B.
To provide fast transmission of data
C.
To provide secure transmission of data
D.
To provide efficient transmission of data

Question 43

What is a broadcast address in IPv4?

A.
An address used to send a message to all devices on a network
B.
An address used for fast transmission of data
C.
An address used for secure transmission of data
D.
An address used for efficient transmission of data

Question 44

What is a private IP address in IPv4?

A.
An IP address that can only be used within a private network and not on the Internet
B.
An IP address that can be used on the Internet and private networks
C.
An IP address used for fast transmission of data
D.
An IP address used for secure transmission of data

Question 45

What is a public IP address in IPv4?

A.
An IP address that can be used on the Internet and private networks
B.
An IP address that can only be used within a private network and not on the Internet
C.
An IP address used for fast transmission of data
D.
An IP address used for secure transmission of data

Question 46

What is a Class A IPv4 address?

A.
An IP address that has a large address space and is used for large networks
B.
An IP address that has a small address space and is used for small networks
C.
An IP address that provides fast transmission of data
D.
An IP address that provides secure transmission of data

Question 47

What is the format of a Class A IP address?

A.
The first octet of the IP address is used to identify the network and the remaining three octets are used to identify the host
B.
The first two octets of the IP address are used to identify the network and the remaining two octets are used to identify the host
C.
The first three octets of the IP address are used to identify the network and the remaining octet is used to identify the host
D.
None of these

Question 48

What is the range of the first octet in a Class A IP address?

A.
0 to 127
B.
128 to 191
C.
192 to 223
D.
224 to 255

Question 49

How many networks can be created using a Class A IP address?

A.
126
B.
16,384
C.
2,097,152
D.
None of these

Question 50

How many hosts can be assigned to a network using a Class A IP address?

A.
16,777,214
B.
65,534
C.
254
D.
None of these

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