Exploring Computer Networks

What is a computer network?

• A computer network is a collection of random devices without any communication.

• A computer network is a system of interconnected computers and devices that communicate and share resources.

• A computer network is a single computer that operates independently.

• A computer network is a type of software used for programming.

What are the main types of computer networks?

• LAN, WAN, MAN, PAN

• Internet, Intranet, Extranet, Cloud

• VPN, VLAN, WLAN, SAN

• Bluetooth, Ethernet, Fiber, Satellite

What does LAN stand for?

• Local Access Network

• Limited Area Network

• Large Area Network

• Local Area Network

What is the purpose of a router in a network?

• To store data for backup purposes

• To provide wireless connectivity only

• To amplify signals in a network

• The purpose of a router in a network is to connect multiple networks and route data between them.

What is the difference between TCP and UDP?

• TCP is faster and connection-oriented than UDP.

• UDP guarantees delivery of packets while TCP does not.

• TCP is reliable and connection-oriented, while UDP is faster and connectionless.

• TCP is used for streaming video, while UDP is used for file transfers.

What is an IP address?

• A software application for browsing the web

• A method for connecting to the internet

• An IP address is a unique numerical label assigned to each device on a network.

• A type of computer virus

What is the function of a firewall?

• To enhance the performance of network devices.

• To increase internet speed by bypassing security measures.

• To store data securely in the cloud.

• The function of a firewall is to monitor and control network traffic to protect against unauthorized access and threats.

What does DNS stand for?

• Dynamic Name System

• Domain Naming System

• Domain Name System

• Domain Name Service

What is the role of a switch in a network?

• A switch amplifies signals in a network.

• A switch stores data permanently for backup purposes.

• A switch is used to connect to the internet directly.

• A switch connects devices in a network and forwards data based on MAC addresses.

What is the OSI model and how many layers does it have?

• 3 layers

• 5 layers

• 7 layers

• 10 layers