Fundamentals of Networking

What is a network?

• A network is a single computer with no connections.

• A network is a collection of unrelated devices.

• A network is a system of interconnected computers and devices that can exchange data.

• A network is a type of software application.

What are the main types of networks?

• Internet, Intranet, Extranet, Cloud

• Bluetooth, Ethernet, Fiber, DSL

• LAN, WAN, MAN, PAN

• VPN, VLAN, WLAN, SAN

Define LAN and WAN.

• LAN is a network for a large area; WAN is a network for a small area.

• LAN is a network for a small area; WAN is a network for a large area.

• LAN connects multiple cities; WAN connects devices in a single room.

• LAN is used for global communication; WAN is used for local communication.

What is the purpose of a router?

• To provide internet access to devices.

• To store data for backup purposes.

• To enhance the speed of a single device.

• The purpose of a router is to direct data traffic between networks.

Explain the function of a switch.

• A switch is used to store data permanently.

• A switch connects devices only through Wi-Fi.

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

• A switch amplifies signals in a network.

What is an IP address?

• A method for connecting to the internet

• A type of computer virus

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

• A software application for browsing the web

What is the difference between IPv4 and IPv6?

• IPv4 supports unlimited devices, while IPv6 has a limited number of addresses.

• IPv4 uses hexadecimal addresses, while IPv6 uses decimal addresses.

• IPv4 is faster than IPv6 due to its smaller address size.

• IPv4 has a 32-bit address space, while IPv6 has a 128-bit address space.

What does DNS stand for?

• Dynamic Name System

• Domain Name System

• Domain Naming System

• Domain Name Service

What is a firewall and its purpose?

• A firewall is a device that boosts internet speed by compressing data.

• A firewall is a physical barrier that prevents fires in data centers.

• A firewall is a network security device that monitors and controls network traffic to protect against unauthorized access and threats.

• A firewall is a type of antivirus software that scans for malware.

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

• 3 layers

• 7 layers

• 10 layers

• 5 layers