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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

Advanced Networking Set 5

50 questions

Question 1

What is the main difference between TCP and UDP in terms of reliability?

A.
TCP is more reliable than UDP.
B.
UDP is more reliable than TCP.
C.
TCP and UDP have the same level of reliability.
D.
None of these

Question 2

What is the main difference between TCP and UDP in terms of overhead?

A.
TCP has less overhead than UDP.
B.
UDP has less overhead than TCP.
C.
TCP and UDP have the same level of overhead.
D.
None of these

Question 3

What is the main difference between TCP and UDP in terms of error detection and correction?

A.
TCP provides error detection and correction, while UDP does not.
B.
UDP provides error detection and correction, while TCP does not.
C.
TCP and UDP provide the same level of error detection and correction.
D.
None of these

Question 4

What is the main purpose of HTTP in the Application layer?

A.
To provide secure data transmission between end systems.
B.
To provide reliable data transmission between end systems.
C.
To transmit data in a standardized format between clients and servers.
D.
None of these

Question 5

What is the main difference between HTTP and HTTPS?

A.
HTTPS is a more secure version of HTTP.
B.
HTTP is a more secure version of HTTPS.
C.
HTTPS and HTTP have the same level of security.
D.
None of these

Question 6

What is the main purpose of SSL (Secure Sockets Layer) in HTTPS?

A.
To provide encryption for data transmission.
B.
To provide authentication for data transmission.
C.
To provide both encryption and authentication for data transmission.
D.
None of these

Question 7

What is the main purpose of TLS (Transport Layer Security) in HTTPS?

A.
To provide encryption for data transmission.
B.
To provide authentication for data transmission.
C.
To provide both encryption and authentication for data transmission.
D.
None of these

Question 8

What is the main purpose of FTP (File Transfer Protocol)?

A.
To transfer files between clients and servers over the internet.
B.
To transfer files between servers over the internet.
C.
To transfer files within a single server.
D.
None of these

Question 9

What is PuTTY used for in file transfer?

A.
A File Transfer client.
B.
A File Transfer server.
C.
An SSH (Secure Shell) client.
D.
None of these

Question 10

What is WinSCP used for in file transfer?

A.
A File Transfer client.
B.
A File Transfer server.
C.
An SCP (Secure Copy) client.
D.
None of these

Question 11

What is the main difference between FTP and SFTP in terms of security?

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

Question 12

What is the main purpose of MRTG (Multi Router Traffic Grapher)?

A.
To monitor network traffic and generate graphical representations of network usage.
B.
To monitor server performance and generate graphical representations of resource usage.
C.
To monitor website traffic and generate graphical representations of website usage.
D.
None of these

Question 13

What is the main purpose of PRTG (Paessler Router Traffic Grapher)?

A.
To monitor network traffic and generate graphical representations of network usage.
B.
To monitor server performance and generate graphical representations of resource usage.
C.
To monitor website traffic and generate graphical representations of website usage.
D.
None of these

Question 14

What is the main purpose of SNMP (Simple Network Management Protocol)?

A.
To monitor network traffic and generate graphical representations of network usage.
B.
To monitor server performance and generate graphical representations of resource usage.
C.
To monitor and manage network devices and generate alerts for network events.
D.
None of these

Question 15

What is the main purpose of Packet Tracer?

A.
To monitor network traffic and generate graphical representations of network usage.
B.
To monitor server performance and generate graphical representations of resource usage.
C.
To simulate and test network configurations and protocols.
D.
None of these

Question 16

What is the main purpose of Wireshark?

A.
To monitor network traffic and generate graphical representations of network usage.
B.
To monitor server performance and generate graphical representations of resource usage.
C.
To analyze and troubleshoot network traffic.
D.
None of these

Question 17

What is the main purpose of socket programming?

A.
To provide a standardized way for applications to communicate over a network.
B.
To provide a secure way for applications to communicate over a network.
C.
To provide a fast way for applications to communicate over a network.
D.
None of these

Question 18

What is the main difference between a TCP (Transmission Control Protocol) socket and a UDP (User Datagram Protocol) socket?

A.
TCP sockets provide reliable and ordered data transmission, while UDP sockets provide unreliable and unordered data transmission.
B.
UDP sockets provide reliable and ordered data transmission, while TCP sockets provide unreliable and unordered data transmission.
C.
TCP sockets provide encrypted data transmission, while UDP sockets provide unencrypted data transmission.
D.
None of these

Question 19

What is the main purpose of the bind() function in socket programming?

A.
To associate a socket with a specific network address.
B.
To associate a socket with a specific network port.
C.
To associate a socket with a specific network address and port.
D.
None of these

Question 20

What is the main purpose of the listen() function in socket programming?

A.
To allow a socket to receive incoming connections.
B.
To establish a connection with a remote socket.
C.
To send data to a remote socket.
D.
None of these

Question 21

What is the main purpose of the accept() function in socket programming?

A.
To allow a socket to receive incoming connections.
B.
To establish a connection with a remote socket.
C.
To accept an incoming connection from a remote socket.
D.
None of these

Question 22

What is the main purpose of computer security?

A.
To protect computer systems and networks from unauthorized access, use, disclosure, disruption, modification, or destruction.
B.
To enhance computer performance.
C.
To store data.
D.
None of these

Question 23

What is the main type of security attack?

A.
Malware attack
B.
Man-in-the-middle attack
C.
Denial of Service attack
D.
All of the above

Question 24

What is the main principle of cryptography?

A.
Confidentiality
B.
Integrity
C.
Availability
D.
All of the above

Question 25

What is the main purpose of the RSA algorithm?

A.
To provide confidentiality
B.
To provide integrity
C.
To provide digital signatures
D.
All of the above

Question 26

What is the main purpose of digital signatures?

A.
To provide confidentiality
B.
To provide integrity
C.
To provide authentication
D.
All of the above

Question 27

What is the main purpose of securing e-mail (PGP)?

A.
To provide confidentiality
B.
To provide integrity
C.
To provide authentication
D.
All of the above

Question 28

What is a malware attack?

A.
An attack that involves the use of malicious software to compromise computer systems and networks.
B.
An attack that involves intercepting communication between two systems to steal sensitive information or alter the communication.
C.
An attack that involves overwhelming a computer system or network with traffic, making it unavailable to users.
D.
None of these

Question 29

What is a man-in-the-middle attack?

A.
An attack that involves the use of malicious software to compromise computer systems and networks.
B.
An attack that involves intercepting communication between two systems to steal sensitive information or alter the communication.
C.
An attack that involves overwhelming a computer system or network with traffic, making it unavailable to users.
D.
None of these

Question 30

What is a denial of service attack?

A.
An attack that involves the use of malicious software to compromise computer systems and networks.
B.
An attack that involves intercepting communication between two systems to steal sensitive information or alter the communication.
C.
An attack that involves overwhelming a computer system or network with traffic, making it unavailable to users.
D.
None of these

Question 31

What is a phishing attack?

A.
An attack that involves tricking a user into revealing sensitive information, such as login credentials or financial information.
B.
An attack that involves the use of malicious software to compromise computer systems and networks.
C.
An attack that involves intercepting communication between two systems to steal sensitive information or alter the communication.
D.
An attack that involves overwhelming a computer system or network with traffic, making it unavailable to users.

Question 32

What is the main purpose of cryptography?

A.
To provide confidentiality
B.
To provide integrity
C.
To provide availability
D.
All of the above

Question 33

What is the main type of encryption used in cryptography?

A.
Symmetric encryption
B.
Asymmetric encryption
C.
Hash encryption
D.
All of the above

Question 34

What is the main advantage of symmetric encryption over asymmetric encryption?

A.
Symmetric encryption is faster than asymmetric encryption.
B.
Symmetric encryption is more secure than asymmetric encryption.
C.
Asymmetric encryption is faster than symmetric encryption.
D.
Asymmetric encryption is more secure than symmetric encryption.

Question 35

What is the main purpose of a hash function in cryptography?

A.
To provide confidentiality
B.
To provide integrity
C.
To provide availability
D.
None of these

Question 36

What is the main advantage of digital signatures over traditional signatures?

A.
Digital signatures are faster than traditional signatures.
B.
Digital signatures are more secure than traditional signatures.
C.
Traditional signatures are faster than digital signatures.
D.
Traditional signatures are more secure than digital signatures.

Question 37

What is the RSA algorithm?

A.
A symmetric encryption algorithm
B.
An asymmetric encryption algorithm
C.
A hash encryption algorithm
D.
None of these

Question 38

What is the main purpose of the RSA algorithm?

A.
To provide confidentiality
B.
To provide integrity
C.
To provide availability
D.
All of the above

Question 39

What is the main advantage of the RSA algorithm over symmetric encryption algorithms?

A.
The RSA algorithm is faster than symmetric encryption algorithms.
B.
The RSA algorithm is more secure than symmetric encryption algorithms.
C.
Symmetric encryption algorithms are faster than the RSA algorithm.
D.
Symmetric encryption algorithms are more secure than the RSA algorithm.

Question 40

What is the main disadvantage of the RSA algorithm?

A.
The RSA algorithm is slower than symmetric encryption algorithms.
B.
The RSA algorithm is less secure than symmetric encryption algorithms.
C.
Symmetric encryption algorithms are faster than the RSA algorithm.
D.
Symmetric encryption algorithms are more secure than the RSA algorithm.

Question 41

What is the key length used in the RSA algorithm?

A.
128-bit key length
B.
256-bit key length
C.
512-bit key length
D.
1024-bit key length

Question 42

What is a firewall?

A.
A physical barrier that protects a network.
B.
A software application that protects a network.
C.
A hardware device that protects a network.
D.
All of the above

Question 43

What is the main purpose of a firewall?

A.
To provide confidentiality
B.
To provide integrity
C.
To provide availability
D.
To provide security

Question 44

What is the main type of firewall used in networks?

A.
Packet filtering firewall
B.
Circuit-level firewall
C.
Application-level firewall
D.
All of the above

Question 45

What is the main advantage of a firewall over other security measures?

A.
Firewalls are faster than other security measures.
B.
Firewalls are more secure than other security measures.
C.
Other security measures are faster than firewalls.
D.
Other security measures are more secure than firewalls.

Question 46

What is the main disadvantage of a firewall?

A.
Firewalls are too slow to be effective.
B.
Firewalls are too complex to be used effectively.
C.
Firewalls can cause network performance issues.
D.
Firewalls can be bypassed by attackers.

Question 47

What is SSL?

A.
A symmetric encryption algorithm
B.
An asymmetric encryption algorithm
C.
A secure communication protocol
D.
None of these

Question 48

What is the main purpose of SSL?

A.
To provide confidentiality
B.
To provide integrity
C.
To provide availability
D.
All of the above

Question 49

What type of encryption does SSL use?

A.
Symmetric encryption
B.
Asymmetric encryption
C.
Hash encryption
D.
None of these

Question 50

What is the main advantage of SSL over other secure communication protocols?

A.
SSL is faster than other secure communication protocols.
B.
SSL is more secure than other secure communication protocols.
C.
Other secure communication protocols are faster than SSL.
D.
Other secure communication protocols are more secure than SSL.

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