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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 4

50 questions

Question 1

What is the subnet mask for a Class A IP address?

A.
255.0.0.0
B.
255.255.0.0
C.
255.255.255.0
D.
None of these

Question 2

What is the maximum number of subnets that can be created using a Class A IP address?

50

A.
2^7 = 128
B.
2^14 = 16,384
C.
2^21 = 2,097,152
D.
None of these

Question 3

What is the maximum number of hosts that can be assigned to a subnet using a Class A IP address?

A.
2^24 - 2 = 16,777,214
B.
2^16 - 2 = 65,534
C.
2^8 - 2 = 254
D.
None of these

Question 4

What is the first valid host address in a Class A IP address with the network address 10.0.0.0 and subnet mask 255.0.0.0?

A.
10.0.0.1
B.
10.0.0.0
C.
10.255.255.255
D.
None of these

Question 5

What is the last valid host address in a Class A IP address with the network address 10.0.0.0 and subnet mask 255.0.0.0?

A.
10.255.255.254
B.
10.0.0.0
C.
10.0.0.1
D.
None of these

Question 6

What is a Class B IP address?

A.
An IP address that has a large address space and is used for large networks
B.
An IP address that has a moderate address space and is used for medium-sized networks
C.
An IP address that has a small address space and is used for small networks
D.
None of these

Question 7

What is the format of a Class B 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 8

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

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

Question 9

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

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

Question 10

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

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

Question 11

What is the subnet mask for a Class B IP address?

A.
255.0.0.0
B.
255.255.0.0
C.
255.255.255.0
D.
None of these

Question 12

What is the maximum number of subnets that can be created using a Class B IP address?

A.
2^7 = 128
B.
2^14 = 16,384
C.
2^21 = 2,097,152
D.
None of these

Question 13

What is the maximum number of hosts that can be assigned to a subnet using a Class B IP address?

A.
2^24 - 2 = 16,777,214
B.
2^16 - 2 = 65,534
C.
2^8 - 2 = 254
D.
None of these

Question 14

What is a Class C IP address?

A.
An IP address that has a large address space and is used for large networks
B.
An IP address that has a moderate address space and is used for medium-sized networks
C.
An IP address that has a small address space and is used for small networks
D.
None of these

Question 15

What is the format of a Class C 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 16

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

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

Question 17

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

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

Question 18

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

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

Question 19

What is the subnet mask for a Class C IP address?

A.
255.0.0.0
B.
255.255.0.0
C.
255.255.255.0
D.
None of these

Question 20

What is the maximum number of subnets that can be created using a Class C IP address?

A.
2^7 = 128
B.
2^14 = 16,384
C.
2^21 = 2,097,152
D.
None of these

Question 21

What is the maximum number of hosts that can be assigned to a subnet using a Class C IP address?

A.
2^24 - 2 = 16,777,214
B.
2^16 - 2 = 65,534
C.
2^8 - 2 = 254
D.
None of these

Question 22

What is a Class D IP address?

A.
An IP address that is used for large networks
B.
An IP address that is used for medium-sized networks
C.
An IP address that is used for small networks
D.
An IP address that is reserved for multicast group addresses

Question 23

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

A.
0 to 127
B.
128 to 191
C.
192 to 223
D.
224 to 239

Question 24

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

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

Question 25

What is the subnet mask for a Class D IP address?

A.
255.0.0.0
B.
255.255.0.0
C.
255.255.255.0
D.
None of these

Question 26

What is the maximum number of subnets that can be created using a Class D IP address?

A.
2^7 = 128
B.
2^14 = 16,384
C.
2^21 = 2,097,152
D.
None of these

Question 27

What is the maximum number of hosts that can be assigned to a subnet using a Class D IP address?

A.
2^24 - 2 = 16,777,214
B.
2^16 - 2 = 65,534
C.
2^8 - 2 = 254
D.
None of these

Question 28

What is a Class E IP address?

A.
An IP address that is used for large networks
B.
An IP address that is used for medium-sized networks
C.
An IP address that is used for small networks
D.
An IP address that is reserved for experimental or future use

Question 29

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

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

Question 30

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

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

Question 31

What is the subnet mask for a Class E IP address?

A.
255.0.0.0
B.
255.255.0.0
C.
255.255.255.0
D.
None of these

Question 32

What is the maximum number of subnets that can be created using a Class E IP address?

A.
$2^7 = 128$
B.
$2^{14} = 16,384$
C.
$2^{21} = 2,097,152$
D.
None of these

Question 33

What is the maximum number of hosts that can be assigned to a subnet using a Class E IP address?

A.
$2^{24} - 2 = 16,777,214$
B.
$2^{16} - 2 = 65,534$
C.
$2^8 - 2 = 254$
D.
None of these

Question 34

What is the main difference between IPv4 and IPv6 in terms of address space?

A.
IPv4 has a larger address space than IPv6.
B.
IPv6 has a larger address space than IPv4.
C.
IPv4 and IPv6 have the same address space.
D.
None of these

Question 35

What is the length of an IPv4 address?

A.
128 bits
B.
64 bits
C.
32 bits
D.
16 bits

Question 36

What is the length of an IPv6 address?

A.
128 bits
B.
64 bits
C.
32 bits
D.
16 bits

Question 37

What is the main difference between IPv4 and IPv6 in terms of header format?

A.
IPv4 has a simpler header format than IPv6.
B.
IPv6 has a simpler header format than IPv4.
C.
IPv4 and IPv6 have the same header format.
D.
None of these

Question 38

What is the main difference between IPv4 and IPv6 in terms of address representation?

A.
IPv4 addresses are represented in binary form.
B.
IPv6 addresses are represented in binary form.
C.
IPv4 addresses are represented in hexadecimal form.
D.
IPv6 addresses are represented in hexadecimal form.

Question 39

What is the main difference between IPv4 and IPv6 in terms of security?

A.
IPv4 is more secure than IPv6.
B.
IPv6 is more secure than IPv4.
C.
IPv4 and IPv6 have the same level of security.
D.
None of these

Question 40

What is the main difference between IPv4 and IPv6 in terms of support for multicast?

A.
IPv4 has better support for multicast than IPv6.
B.
IPv6 has better support for multicast than IPv4.
C.
IPv4 and IPv6 have the same level of support for multicast.
D.
None of these

Question 41

What is the main function of the Transport layer?

A.
To provide reliable data transmission between end systems.
B.
To provide error-free data transmission between end systems.
C.
To provide fast data transmission between end systems.
D.
To provide secure data transmission between end systems.

Question 42

What are the two main Transport layer protocols?

A.
TCP and IP
B.
UDP and IP
C.
TCP and UDP
D.
IP and ICMP

Question 43

What is a Port and Socket?

A.
A Port is a logical address used by the Transport layer to identify a specific process on a host, while a Socket is a combination of the IP address and Port number of a host.
B.
A Port is a physical address used by the Network layer to identify a specific network device, while a Socket is a combination of the IP address and Port number of a host.
C.
A Port is a logical address used by the Application layer to identify a specific process on a host, while a Socket is a combination of the IP address and Port number of a host.
D.
A Port is a physical address used by the Transport layer to identify a specific network device, while a Socket is a combination of the IP address and Port number of a host.

Question 44

What is the main purpose of Connection establishment and Connection release in the Transport layer?

A.
To set up and tear down connections between end systems.
B.
To provide reliable data transmission between end systems.
C.
To provide fast data transmission between end systems.
D.
To provide secure data transmission between end systems.

Question 45

What is the purpose of Flow control and buffering in the Transport layer?

A.
To ensure that data is transmitted accurately and in the correct order.
B.
To prevent the receiver from being overwhelmed by data from the sender.
C.
To ensure that data is transmitted as fast as possible.
D.
To provide secure data transmission between end systems.

Question 46

What is the purpose of Multiplexing and de-multiplexing in the Transport layer?

A.
To allow multiple applications to share a single network connection.
B.
To ensure that data is transmitted accurately and in the correct order.
C.
To prevent the receiver from being overwhelmed by data from the sender.
D.
To provide secure data transmission between end systems.

Question 47

What is the main function of a Congestion control algorithm in the Transport layer?

A.
To prevent data loss and ensure reliable data transmission.
B.
To prevent network congestion and maintain efficient network performance.
C.
To provide fast data transmission between end systems.
D.
To provide secure data transmission between end systems.

Question 48

What is the main purpose of a Port in the Transport layer?

A.
To identify a specific process on a host.
B.
To identify a specific network device.
C.
To provide reliable data transmission between end systems.
D.
To provide fast data transmission between end systems.

Question 49

What is a Socket in the Transport layer?

A.
A physical address used by the Network layer to identify a specific network device.
B.
A logical address used by the Application layer to identify a specific process on a host.
C.
A combination of the IP address and Port number of a host.
D.
None of these

Question 50

What is an example of a Port and Socket in the Transport layer?

A.
Port 80 and Socket 192.168.1.1:80
B.
Port 443 and Socket 192.168.1.1:443
C.
Port 25 and Socket 192.168.1.1:25
D.
Port 53 and Socket 192.168.1.1:53

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