Question 1

What are protocols in networking?

Accepted Answer

A set of standards that allow two devices to communicate

Answer

A video game genre

Answer

An outdated technology

Answer

A type of physical hardware

Question 2

How are protocols organized in networking?

Accepted Answer

They are broken up into layers

Answer

They are combined into one

Answer

They are random and chaotic

Answer

They are based on the size of the data

Question 3

Which of the following layers is the top layer of the TCP/IP protocol model?

Accepted Answer

Application layer

Answer

Link layer

Answer

Internet layer

Answer

Transport layer

Question 4

What is the primary role of the transport layer in the TCP/IP model?

Accepted Answer

To set up communication between two hosts

Answer

To physically connect devices

Answer

To provide storage for data

Answer

To address packets for transmission

Question 5

Which protocol operates at the Internet layer?

Accepted Answer

IP or Internet Protocol

Answer

HTTP or Hypertext Transfer Protocol

Answer

UDP or User Datagram Protocol

Answer

TCP or Transmission Control Protocol

Question 6

What additional information does the transport layer add to packets?

Accepted Answer

Port numbers and sequence numbers

Answer

Random codes for encryption

Answer

Usernames and passwords

Answer

File size and type

Question 7

Why do we need both MAC and IP addresses for network communication?

Accepted Answer

MAC addresses identify devices on a local network, while IP addresses route packets across networks

Answer

They serve the same purpose

Answer

Only IP addresses are needed for communication

Answer

MAC addresses are obsolete

Question 8

What is the function of the Domain Name System (DNS)?

Accepted Answer

To map human-readable domain names to IP addresses

Answer

To create network protocols

Answer

To encrypt data for security

Answer

To store files on a web server

Question 9

What happens when you type a URL into a web browser?

Accepted Answer

The browser sends the domain name to the DNS to get the IP address

Answer

The browser generates a random IP address

Answer

The browser directly connects to the website

Answer

The browser requests a file from your computer

Question 10

What is a 'socket' in networking?

Accepted Answer

A combination of an IP address and a port number

Answer

A software application

Answer

A type of cable used for connections

Answer

A device that connects to the internet

Question 11

What is the primary purpose of protocols in networking?

Accepted Answer

To allow two devices to communicate

Answer

To secure network data

Answer

To enhance internet speed

Answer

To create hardware specifications

Question 12

How many layers are in the traditional TCP/IP model?

Accepted Answer

Four layers

Answer

Five layers

Answer

Three layers

Answer

Six layers

Question 13

Which layer of the TCP/IP model is responsible for addressing packets?

Accepted Answer

Internet layer

Answer

Link layer

Answer

Transport layer

Answer

Application layer

Question 14

Which protocol is used at the transport layer to maintain end-to-end communication?

Accepted Answer

TCP

Answer

UDP

Answer

IP

Answer

HTTP

Question 15

What type of address is a MAC address?

Accepted Answer

A unique identifier for network interfaces

Answer

An encryption key

Answer

A temporary internet address

Answer

A protocol specification

Question 16

What does the HTTP protocol operate on?

Accepted Answer

Application layer

Answer

Link layer

Answer

Internet layer

Answer

Transport layer

Question 17

What does the transport layer add to each packet?

Accepted Answer

Port number and sequence number

Answer

MAC address

Answer

IP address

Answer

Encryption key

Question 18

What role does the router play when sending data across different networks?

Accepted Answer

It directs packets based on the destination IP address

Answer

It encrypts the data packets

Answer

It queries local devices

Answer

It stores all MAC addresses

Question 19

What does the Domain Name System (DNS) do?

Accepted Answer

Maps human-readable domain names to IP addresses

Answer

Secures internet connections

Answer

Encrypts user data

Answer

Stores web content

Question 20

When a host wants to find another host on the same network, what method is typically used?

Accepted Answer

Broadcasting

Answer

Direct addressing

Answer

Multicasting

Answer

Unicasting