Network Protocols: Master the Language of Network Communication

Question 1

Which layer in the TCP/IP model is responsible for establishing and maintaining connections between devices?

Accepted Answer

Transport

Answer

Application

Answer

Network

Answer

Data Link

Question 2

Which characteristic describes a TCP connection?

Accepted Answer

Connection-oriented and reliable

Answer

Connectionless and unreliable

Answer

Unidirectional and best-effort

Answer

Multicast and encrypted

Question 3

Which of the following network ports is commonly used for secure web browsing?

Accepted Answer

443

Answer

21

Answer

8080

Answer

3389

Question 4

Which network topology involves connecting all devices to a central hub or switch?

Accepted Answer

Star

Answer

Bus

Answer

Ring

Answer

Mesh

Question 5

What is the main difference between a modem and a router in a home network setup?

Accepted Answer

A modem connects to the internet, while a router distributes the connection to devices

Answer

A router connects to the internet, while a modem distributes the connection to devices

Answer

They both perform the same function and are interchangeable

Answer

A modem is required for wired connections, while a router is for wireless connections

Question 6

Which of the following is the primary transport layer protocol used in the TCP/IP suite?

Accepted Answer

TCP

Answer

UDP

Answer

HTTP

Answer

SMTP

Question 7

What is the primary function of the HTTP protocol?

Accepted Answer

To retrieve web pages from servers

Answer

To establish and maintain network connections

Answer

To transfer files between computers

Answer

To send and receive email messages

Question 8

What is the primary purpose of a MAC address?

Accepted Answer

To identify individual devices on a network

Answer

To establish network connections

Answer

To retrieve web pages from servers

Answer

To send and receive email messages

Question 9

Which characteristic is NOT applicable to TCP?

Accepted Answer

UDP-based

Answer

Connection-oriented

Answer

Reliable

Answer

Flow-controlled

Question 10

What is the main function of a firewall in a computer network?

Accepted Answer

To monitor and control network traffic

Answer

To route data packets efficiently

Answer

To translate domain names to IP addresses

Answer

To amplify network signals

Question 11

What is the primary purpose of a subnet mask?

Accepted Answer

To divide a network into smaller segments

Answer

To identify the broadcast address of a network

Answer

To translate domain names to IP addresses

Answer

To amplify network signals

Question 12

What is the primary function of a router in a computer network?

Accepted Answer

To connect different network segments

Answer

To monitor and control network traffic

Answer

To translate domain names to IP addresses

Answer

To amplify network signals

Question 13

What is the main goal of standards organizations in relation to network protocols?

Accepted Answer

To promote interoperability and compliance with protocols

Answer

To enforce proprietary standards for network communication

Answer

To create and implement new network protocols independently

Answer

To control the commercialization of network protocol software

Question 14

HTTP is primarily employed for:

Accepted Answer

Facilitating web browsing

Answer

Transferring files

Answer

Transmitting email messages

Answer

Managing network operations

Question 15

Which function is performed by the SMTP protocol?

Accepted Answer

Sending and receiving emails

Answer

Establishing network connections

Answer

Controlling file access permissions

Answer

Transmitting multimedia content

Question 16

What is the objective of the three-way handshake in TCP?

Accepted Answer

Establishing a reliable connection between devices

Answer

Exchanging encryption keys

Answer

Negotiating network bandwidth

Answer

Identifying and correcting transmission errors

Question 17

In a star topology network, devices are connected to a central:

Accepted Answer

Star

Answer

Bus

Answer

Ring

Answer

Mesh

Question 18

What is the purpose of port numbers in network communication?

Accepted Answer

Identifying specific applications on a device

Answer

Determining the destination of data packets

Answer

Regulating network traffic flow

Answer

Ensuring data integrity

Question 19

Which of the following security measures is implemented in the Transport Layer?

Accepted Answer

Encryption

Answer

Authentication

Answer

Error correction

Answer

Flow control

Question 20

In the context of network communication, what is the distinction between a client and a server?

Accepted Answer

A client initiates requests while a server responds

Answer

A server initiates requests while a client responds

Answer

They perform identical functions

Answer

They exist only in different network topologies

Question 21

In the TCP/IP model, which layer is responsible for routing network packets?

Accepted Answer

Network layer

Answer

Application layer

Answer

Transport layer

Answer

Data Link layer

Question 22

What is the primary purpose of the HTTP (Hypertext Transfer Protocol)?

Accepted Answer

Hypertext document transmission

Answer

File transfer

Answer

Electronic mail transmission

Answer

Network connection establishment

Question 23

For SMTP (Simple Mail Transfer Protocol) communication, which port number is typically used?

Accepted Answer

25

Answer

21

Answer

80

Answer

443

Question 24

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

Accepted Answer

TCP is connection-oriented while UDP is connectionless.

Answer

UDP is connection-oriented while TCP is connectionless.

Answer

TCP is faster than UDP.

Answer

UDP is more reliable than TCP.

Question 25

Which of the following is NOT a primary function of the Data Link layer in the TCP/IP model?

Accepted Answer

IP address assignment

Answer

Error detection and correction

Answer

Flow control

Answer

Media access control

Question 26

What is the primary purpose of a subnet mask?

Accepted Answer

To delineate the network and host portions of an IP address

Answer

To define the default gateway for a network segment

Answer

To translate domain names into IP addresses

Answer

To filter inbound network traffic

Question 27

What is the primary function of a MAC (Media Access Control) address?

Accepted Answer

To uniquely identify a device on a network

Answer

To route traffic between different networks

Answer

To convert IP addresses into physical addresses

Answer

To encrypt network communication

Question 28

Which protocol is primarily used to direct data packets across a network?

Accepted Answer

IP

Answer

TCP

Answer

SMTP

Answer

UDP

Question 29

What is the primary function of the Hypertext Transfer Protocol (HTTP)?

Accepted Answer

Retrieving web pages

Answer

Sending emails

Answer

Managing file systems

Answer

Establishing network connections

Question 30

Which of the following is NOT a layer in the TCP/IP model?

Accepted Answer

Presentation

Answer

Network Access

Answer

Transport

Answer

Data Link

Question 31

What is the purpose of a port number in network communication?

Accepted Answer

Identifying the specific application or service

Answer

Encrypting data transmissions

Answer

Routing packets to their destination

Answer

Establishing network connections

Question 32

Which of the following protocols is used for sending electronic mail (email)?

Accepted Answer

SMTP

Answer

HTTP

Answer

TCP

Answer

FTP

Question 33

What is the key distinction between TCP and UDP protocols?

Accepted Answer

TCP is connection-based, while UDP is connectionless.

Answer

UDP is more reliable than TCP.

Answer

TCP is faster than UDP.

Answer

UDP provides guaranteed delivery, while TCP does not.

Question 34

Which of the following is a common application that utilizes the HTTP protocol?

Accepted Answer

Web browsers

Answer

Email clients

Answer

File sharing software

Answer

Database management systems

Question 35

What is the role of a Domain Name System (DNS) in network communication?

Accepted Answer

Translating domain names into IP addresses

Answer

Routing packets through the network

Answer

Providing security for data transmissions

Answer

Managing network resources

Question 36

What is the primary purpose of a firewall in network security?

Accepted Answer

Blocking unauthorized access to a network

Answer

Encrypting data transmissions

Answer

Detecting and preventing malware infections

Answer

Monitoring network traffic

Question 37

In the TCP/IP model, which layer is responsible for routing packets based on their destination IP addresses?

Accepted Answer

Network

Answer

Application

Answer

Transport

Answer

Link

Question 38

Which type of TCP/IP connection is NOT commonly used?

Accepted Answer

Triplex

Answer

Simplex

Answer

Half-duplex

Answer

Full-duplex

Question 39

What is the main purpose of the SMTP protocol?

Accepted Answer

Sending and receiving electronic mail

Answer

Transferring files over a network

Answer

Accessing web pages

Answer

Connecting to remote servers

Question 40

What is a key difference between TCP and UDP protocols?

Accepted Answer

TCP is a connection-oriented protocol, while UDP is connectionless.

Answer

TCP provides faster data transfer than UDP.

Answer

UDP is a more reliable protocol than TCP.

Answer

UDP does not use a sliding window mechanism, while TCP does.

Question 41

Which of the following applications commonly utilizes the HTTP protocol?

Accepted Answer

Web browsing

Answer

Email management

Answer

File sharing

Answer

Gaming

Question 42

What is the primary function of a subnet mask in TCP/IP networking?

Accepted Answer

Determining which portion of an IP address represents the network and which represents the host

Answer

Providing a default gateway for the network

Answer

Encrypting data for secure transmission

Answer

Setting the maximum packet size for the network

Question 43

Primary purpose of the DNS protocol is?

Accepted Answer

Translating domain names into their corresponding IP addresses

Answer

Providing email services

Answer

Configuring network infrastructure devices

Answer

Transferring files over a network

Question 44

Which of the following is a defining characteristic of a virtual LAN (VLAN)?

Accepted Answer

Logically dividing a physical LAN into isolated broadcast domains

Answer

Providing physical separation between devices on a network

Answer

Enhancing network security through access control

Answer

Increasing the available network bandwidth

Question 45

Which network configuration features a decentralized structure where devices connect and communicate directly with each other?

Accepted Answer

Peer-to-peer

Answer

Client-server

Answer

Distributed

Answer

Bus

Question 46

Which emerging network technology trend is designed to tackle the challenges of managing and controlling complex networks?

Accepted Answer

Software-defined networking (SDN)

Answer

Network virtualization

Answer

Cloud computing

Answer

Artificial intelligence (AI)

Question 47

In the TCP/IP protocol suite, what is the main function of the Internet Protocol (IP)?

Accepted Answer

Routing data packets based on their destination IP addresses

Answer

Establishing connections between devices

Answer

Providing a secure channel for data transmission

Answer

Translating domain names into IP addresses

Question 48

Which protocol ensures reliable and ordered delivery of data between two devices, establishing a connection before transmitting data?

Accepted Answer

TCP (Transmission Control Protocol)

Answer

SMTP (Simple Mail Transfer Protocol)

Answer

HTTP (Hypertext Transfer Protocol)

Answer

UDP (User Datagram Protocol)

Question 49

When you visit a website in your web browser, what protocol is used to communicate between your browser and the web server?

Accepted Answer

HTTP (Hypertext Transfer Protocol)

Answer

ICMP (Internet Control Message Protocol)

Answer

FTP (File Transfer Protocol)

Answer

DNS (Domain Name System)

Question 50

What does the acronym 'IP' stand for in the widely-used TCP/IP networking model?

Accepted Answer

Internet Protocol

Answer

Internet Programming

Answer

Inter-Process

Answer

Internet Packet

Question 51

In the TCP/IP model, which layer is responsible for determining the best path for data packets to travel across different networks?

Accepted Answer

Network Layer

Answer

Transport Layer

Answer

Application Layer

Question 52

When sending an email using the SMTP protocol, what is the typical port number used for communication?

Accepted Answer

25

Answer

443

Answer

53

Answer

80

Question 53

Which protocol is responsible for translating human-readable domain names (like google.com) into numerical IP addresses?

Accepted Answer

DNS (Domain Name System)

Answer

FTP (File Transfer Protocol)

Answer

ARP (Address Resolution Protocol)

Answer

DHCP (Dynamic Host Configuration Protocol)

Question 54

When you download a file using your web browser, which protocol is primarily used for this file transfer?

Accepted Answer

HTTP (Hypertext Transfer Protocol)

Answer

TCP (Transmission Control Protocol)

Answer

SMTP (Simple Mail Transfer Protocol)

Answer

FTP (File Transfer Protocol)

Question 55

What is the key advantage of using UDP over TCP in certain situations?

Accepted Answer

UDP is faster and more efficient for applications where reliable data delivery is not critical, such as streaming media.

Answer

UDP offers stronger security features compared to TCP.

Answer

UDP is better suited for transferring large files due to its faster speed.

Question 56

When setting up a network, which protocol enables automatic assignment of IP addresses to devices, simplifying network configuration?

Accepted Answer

DHCP (Dynamic Host Configuration Protocol)

Answer

ARP (Address Resolution Protocol)

Answer

DNS (Domain Name System)

Answer

ICMP (Internet Control Message Protocol)

Question 57

You suspect a network device is not reachable. You use a tool to send a message to check its connectivity. Which protocol is most likely being used for this diagnostic purpose?

Accepted Answer

ICMP (Internet Control Message Protocol)

Answer

TCP (Transmission Control Protocol)

Answer

UDP (User Datagram Protocol)