Computer Networks Quiz

What is a computer network?

• A hardware component

• A group of interconnected devices

• A type of software

• A single computer

Answer explanation

A computer network is defined as a group of interconnected devices that can communicate and share resources. This distinguishes it from hardware components, software, or a single computer, making the correct choice 'A group of interconnected devices'.

What are the two main parts of a computer network?

• Devices and connections

• Software and hardware

• Users and applications

• Protocols and addresses

Answer explanation

The two main parts of a computer network are devices (like computers and routers) and connections (the links that allow them to communicate). This choice accurately captures the fundamental components of networking.

What is the purpose of communication protocols?

• To limit network access

• To ensure data accuracy

• To reduce costs

• To increase hardware speed

Answer explanation

Communication protocols are essential for ensuring data accuracy by defining rules for data transmission, error checking, and data integrity. This helps maintain reliable communication between devices.

What does an IP address do?

• Routes data packets

• Connects devices physically

• Identifies a device on the internet

• Encrypts data

Answer explanation

An IP address uniquely identifies a device on the internet, allowing it to send and receive data. This is essential for communication between devices, making it the correct choice.

What is bandwidth?

• Maximum data transfer rate

• Actual data transfer rate

• Type of network connection

• Protocol for data exchange

Answer explanation

Bandwidth refers to the maximum data transfer rate of a network connection, indicating the highest amount of data that can be transmitted in a given time period. This makes 'Maximum data transfer rate' the correct choice.

What does NIC stand for?

• Network Interface Card

• Network Information Center

• Network Internet Connection

• Network Integrated Circuit

Answer explanation

NIC stands for Network Interface Card, which is a hardware component that connects a computer to a network. The other options do not accurately represent the acronym NIC.

What type of communication does a wired link use?

• Satellite connections

• Infrared signals

• Cables

• Radio waves

Answer explanation

A wired link uses cables for communication, which provide a physical connection between devices. Other options like satellite connections, infrared signals, and radio waves are forms of wireless communication.

What is a VPN?

• Variable Private Network

• Virtual Public Network

• Virtual Private Network

• Virtual Protected Network

Answer explanation

A VPN, or Virtual Private Network, creates a secure connection over the internet, allowing users to send and receive data as if their devices were directly connected to a private network. This enhances privacy and security.

What is the role of a client in a client-server network?

• Requests services from a server

• Provides services to clients

• Manages network security

• Routes data packets

Answer explanation

In a client-server network, the client is responsible for requesting services from the server. This means it initiates communication to access resources or perform tasks, while the server provides those requested services.

What is desktop sharing?

• Connecting to a VPN

• Transferring data via USB

• Sharing files over email

• Displaying a computer screen remotely

Answer explanation

Desktop sharing refers to displaying a computer screen remotely, allowing others to view or control the screen over the internet. This is distinct from connecting to a VPN, transferring data via USB, or sharing files over email.