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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 6

55 questions

Question 1

What is the main disadvantage of SSL?

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

2

What is ARP?

A.
A routing protocol
B.
A protocol used to map IP addresses to physical addresses
C.
A protocol used to map physical addresses to IP addresses
D.
None of these

Question 3

What is RARP?

A.
A protocol used to map IP addresses to physical addresses
B.
A protocol used to map physical addresses to IP addresses
C.
A routing protocol
D.
None of these

Question 4

What is IP?

A.
A routing protocol
B.
A protocol used to map IP addresses to physical addresses
C.
A protocol used to map physical addresses to IP addresses
D.
None of these

Question 5

What is ICMP?

A.
A routing protocol
B.
A protocol used to map IP addresses to physical addresses
C.
A protocol used to map physical addresses to IP addresses
D.
A protocol used to manage network errors and status messages

Question 6

What is the main advantage of ARP over other routing protocols?

A.
ARP is faster than other routing protocols.
B.
ARP is more secure than other routing protocols.
C.
ARP is simpler to use than other routing protocols.
D.
Other routing protocols are faster than ARP.

Question 7

What is the port number for HTTP?

A.
21
B.
25
C.
80
D.
443

Question 8

What is the port number for HTTPS?

A.
21
B.
25
C.
80
D.
443

Question 9

What is the port number for FTP?

A.
21
B.
25
C.
80
D.
443

Question 10

What is the port number for SMTP?

A.
21
B.
25
C.
80
D.
443

Question 11

What is the port number for Telnet?

A.
21
B.
25
C.
80
D.
443

Question 12

What is the subnet mask for the following IP address: 192.168.100.25/20?

A.
255.255.0.0
B.
255.255.240.0
C.
255.255.255.0
D.
255.255.255.240

Question 13

What is the network address for the following IP address and subnet mask: 192.168.100.25/24?

A.
192.168.100.0
B.
192.168.100.1
C.
192.168.100.24
D.
192.168.100.25

Question 14

What is the broadcast address for the following IP address and subnet mask: 192.168.100.25/22?

A.
192.168.100.0
B.
192.168.100.1
C.
192.168.100.22
D.
192.168.100.255

Question 15

What does IPsec stand for?

A.
Internet Protocol Security
B.
Internet Protocol Secure
C.
Internet Protocol Secured
D.
Internet Protocol Securely

Question 16

What is IPsec used for?

A.
Encryption and authentication of IP packets
B.
Encryption and authentication of TCP packets
C.
Encryption and authentication of UDP packets
D.
Encryption and authentication of all packets

Question 17

What is a VPN used for?

A.
Virtual Private Networking
B.
Virtual Public Networking
C.
Virtual Protected Networking
D.
Virtual Private Network

Question 18

What does VPN provide?

A.
Secure and private communication over a public network
B.
Secure and public communication over a private network
C.
Insecure and private communication over a public network
D.
Insecure and public communication over a private network

Question 19

What does IEEE 802.3 stand for?

A.
Institute of Electrical and Electronics Engineers 802.3
B.
Institute of Electronics and Electrical Engineers 802.3
C.
Institute of Electrical Engineers 802.3
D.
Institute of Electronics Engineers 802.3

Question 20

What is IEEE 802.3 known as?

A.
Ethernet
B.
Token Bus
C.
Token Ring
D.
CSMA/CD

Question 21

What is the maximum data rate specified by the original IEEE 802.3 standard?

A.
10 Mbps
B.
100 Mbps
C.
1000 Mbps
D.
10 Gbps

Question 22

What is the most common physical layer standard used by Ethernet networks?

A.
10BaseT
B.
100BaseT
C.
1000BaseT
D.
10000BaseT

Question 23

What is a P2P network?

A.
A centralized network where a single server handles all data transfers
B.
A decentralized network where data transfers are handled by multiple nodes
C.
A hierarchical network where data transfers are handled by a single node
D.
A hybrid network where data transfers are handled by a combination of centralized and decentralized nodes

Question 24

What are some examples of P2P applications?

A.
BitTorrent, Gnutella, eDonkey
B.
Skype, Google Drive, Dropbox
C.
Amazon Web Services, Microsoft Azure, Google Cloud
D.
HTTP, FTP, SMTP

Question 25

What are the benefits of using P2P applications?

A.
Decentralized data transfers, reduced server load, lower costs
B.
Centralized data transfers, increased server load, higher costs
C.
Hierarchical data transfers, increased server load, lower costs
D.
Hybrid data transfers, balanced server load, moderate costs

Question 26

What are the drawbacks of using P2P applications?

A.
Security concerns, copyright infringement, slow data transfers
B.
High data transfers, secure communication, no copyright infringement
C.
Fast data transfers, secure communication, no copyright infringement
D.
Secure data transfers, no copyright infringement, fast communication

Question 27

What is E-mail?

A.
Electronic Message
B.
Electromagnetic Message
C.
Electronic Mailbox
D.
Electromagnetic Mailbox

Question 28

What is the most common protocol used for E-mail transmission?

A.
SMTP
B.
FTP
C.
HTTP
D.
HTTPS

Question 29

What is the most common format used for E-mail messages?

A.
HTML
B.
XML
C.
Plain Text
D.
Rich Text Format

Question 30

What is the purpose of an E-mail client?

A.
To manage and send E-mails.
B.
To manage and receive E-mails.
C.
To manage and store E-mails.
D.
To manage, send, and receive E-mails

Question 31

What is Multiplexing?

A.
Combining multiple signals into a single signal.
B.
Separating a single signal into multiple signals
C.
Transmitting multiple signals simultaneously
D.
Receiving multiple signals simultaneously

Question 32

What is De-multiplexing?

A.
Combining multiple signals into a single signal
B.
Separating a single signal into multiple signals
C.
Transmitting multiple signals simultaneously
D.
Receiving multiple signals simultaneously

Question 33

What is the purpose of Multiplexing in computer networking?

A.
To reduce the number of communication channels required
B.
To increase the number of communication channels required
C.
To improve the quality of the communication channels
D.
To reduce the speed of the communication channels

Question 34

What is the purpose of De-multiplexing in computer networking?

A.
To reduce the number of communication channels required
B.
To increase the number of communication channels required
C.
To improve the quality of the communication channels
D.
To reduce the speed of the communication channels

Question 35

Which layer 2 device is capable of filtering traffic based on the MAC addresses of the devices connected to it?

A.
Hub
B.
Switch
C.
Router
D.
Gateway
E.
NIC

Question 36

Which layer 3 device is capable of connecting two networks together and forwarding packets between them?

A.
Hub
B.
Switch
C.
Router
D.
Gateway
E.
NIC

Question 37

Which of the following devices operates at the network layer of the OSI model and is capable of connecting two different types of networks together?

A.
Hub
B.
Switch
C.
Router
D.
Gateway
E.
Modem

Question 38

Which layer of the OSI model is responsible for routing and switching packets between networks?

A.
Application layer
B.
Transport layer
C.
Network layer
D.
Data link layer
E.
Physical layer

Question 39

Which layer of the OSI model is responsible for providing error-free transmission of data?

A.
Application layer
B.
Transport layer
C.
Network layer
D.
Data-link layer
E.
Physical layer

Question 40

In which network topology are all devices connected to a central hub or switch?

A.
Bus topology
B.
Ring topology
C.
Star topology
D.
Mesh topology

Question 41

In which network topology are devices connected in a circular chain?

A.
Bus topology
B.
Ring topology
C.
Star topology
D.
Mesh topology

Question 42

In which network topology are all devices connected to a single cable?

A.
Bus topology
B.
Ring topology
C.
Star topology
D.
Mesh topology

Question 43

In which network topology are devices connected to each other in a redundant manner to provide multiple paths for data to travel?

A.
Bus topology
B.
Ring topology
C.
Star topology
D.
Mesh topology

Question 44

In which network topology are devices connected to a central backbone cable?

A.
Bus topology
B.
Ring topology
C.
Star topology
D.
Mesh topology

Question 45

Which of the following routing protocols is used in small to medium-sized networks and is based on the hop count metric?

A.
OSPF
B.
BGP
C.
EIGRP
D.
RIP

Question 46

Which of the following protocols is used to translate between IP addresses and MAC addresses in a network?

A.
ARP
B.
DNS
C.
ICMP
D.
SNMP

Question 47

Which of the following protocols is used to provide secure communication over a network, especially over the internet?

A.
SSL/TLS
B.
IPSec
C.
PPTP
D.
L2TP

Question 48

Which of the following network devices can inspect and filter traffic based on the content of the packets, and can be used to block malicious traffic?

A.
Router
B.
Firewall
C.
Switch
D.
Load balancer

Question 49

Which of the following protocols is used to manage network devices and monitor network performance?

A.
SNMP
B.
SMTP
C.
FTP
D.
HTTP

Question 50

Which of the following network topologies provides the highest level of fault tolerance and redundancy, with every device connected to every other device in the network?

A.
Mesh topology
B.
Bus topology
C.
Star topology
D.
Ring topology

Question 51

Which of the following network topologies is used primarily in the airline industry for flight reservation systems?

A.
Bus topology
B.
Star topology
C.
Mesh topology
D.
Tree topology

Question 52

Which of the following network topologies is used in Ethernet networks and can operate at high speeds?

A.
Bus topology
B.
Star topology
C.
Mesh topology
D.
Ring topology

Question 53

Which of the following network topologies is used in token ring networks, where each device is connected to the next in a circular chain?

A.
Bus topology
B.
Star topology
C.
Mesh topology
D.
Ring topology

Question 54

Which of the following network topologies is a combination of two or more different network topologies?

A.
Hybrid topology
B.
Star topology
C.
Mesh topology
D.
Ring topology

Question 55

Which of the following network topologies is considered the most reliable due to its redundancy and fault tolerance?

A.
Bus topology
B.
Ring topology
C.
Star topology
D.
Mesh topology

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