Reviewing Networking

Reviewing
Networking

Understanding the intricacies and complexities of networking to enhance connectivity and communication in the digital world.

Reviewing Networking

• Networking Concepts: Learn how devices communicate and share resources

• Computer Networks: Linked devices sharing computing power and resources

• Benefits & Risks: Easier communication, security threats, and costs

• Types of Networks: PAN, LAN, WAN

• Connectivity Methods: Various ways to connect devices in a network

Multiple Select

What are the different types of networks?

• PAN

• LAN

• WAN

• Router

Types of Networks

PAN: Personal Area Network is a network used for communication among devices close to one person.
LAN: Local Area Network is a network that connects devices within a limited area.
WAN: Wide Area Network is a network that spans a large geographical area.

Networking Technologies

• Wired Technologies: Ethernet cable, Powerline, Fibre Optic

• Wireless Technologies: Bluetooth, Wi-Fi, Mobile Data

• Wired tech is more efficient due to faster data transfer speed and less prone to interference

  Identifying Networked devices

• MAC Address: Unique identifier for devices on a LAN

• IP Address: Unique numerical label for devices on a network

• IPv4 vs IPv6: IPv6 provides more addresses and better network security

Multiple Choice

Which technology provides more data transfer efficiency in long distances?

• Ethernet cable

• Powerline

• Fibre Optic

• Bluetooth

Multiple Choice

What does "MAC" stand for in "MAC Address"?

• Media Access Control
• Mandatory Access Control
• Micro Access Control
• Media Access Certificate

Multiple Choice

What are MAC addresses used to identify?

• Hardware
• Networking software
• DSI-Ware
• Firmware

Multiple Choice

Which of these is a valid MAC Address?

• ee.ee.ee.ee.ee.ee
• 192.168.0.1
• 6b-44.61-ac.bd-5f
• 81.144.164.210

Multiple Choice

IPv4 addresses are ___ bit addresses.

• 2

• 8

• 32

• 128

Multiple Choice

IPv6 addresses are ___ bit numbers.

• 2

• 8

• 32

• 128

Multiple Choice

What does IP stand for in IP address?

• Internet Password
• Internet Procedure
• Internet Protocol
• Internet Policy

Multiple Choice

What is the purpose of IPv6?

• To replace IPv4 because IPv4 is no longer used today.

• To replace IPv4 because we've run out of IPv4 addresses.

• Used instead of IPv4 because newer computers only understand IPv6

• To stop connection of non personal computer devices such as smartphones/IPTV

Networking Basics

• Client-Server System: A way of organizing devices in a network to work together.

• Client: A device that requests services or sends requests.

• Server: A device that provides services on a network.

• Protocols: Set of rules for communication between devices.

• DNS: Domain Name System translates website names into IP addresses.

• Data Security: Practices and tools to protect devices and data from online threats.

DNS: Translating Website Names

DNS stands for Domain Name System. It translates user-friendly website names (like www.example.com) into their corresponding IP addresses (like 192.168.0.1). This allows clients to connect to servers using memorable domain names instead of complex numerical addresses. DNS plays a crucial role in the functioning of the internet, making it easier for users to access websites and services.

Multiple Choice

What is the purpose of DNS in a client-server system?

• Translating website names into IP addresses

• Providing data security

• Organizing devices in a network

• Setting rules for communication between devices

Multiple Choice

A Host Name "translates" the IP address of a computer into words so people can remember it more easily.

• true

• false

Multiple Choice

Which of the following is a Network Interface Card?

Protocols

Protocols are a set of rules/functions in network communication
HTTPS - allows user to access a webserver via a browser securely
SMTP - allows user to send an e-mail
FTP - allows user to upload a file on a file serve/online file storage
IP - Internet Protocol - allows devices to be identified via an IP address on a network

Multiple Choice

A client-server network allows people to save their data centrally.

• True
• False

Multiple Choice

Which one of these items is true of a client-server network?

• Needs a network manager to run the network
• No centralised management
• All computers have equal status
• No dependency on a server

Multiple Choice

What does Protocol mean?

• Rules

• Security

• Services

• Orders

Multiple Choice

Which protocol would you use to transfer files?

• HTTP

• FTP

• POP3

• SMTP

Multiple Choice

Which protocol does this symbolize?

• IMAP

• HTTPS

• FTP

• SMTP

Multiple Choice

SMTP is used for ..

• Retrieving emails

• Maintain CPU performance

• Downloading files

• Sending emails from one server to another

Network Devices/Equipment

Hub - connecting few devices to form a LAN
Switch - connecting many devices to form a bigger and more sophisticated LAN
Router - provides network security to the network and allows multiple networks to connect to each other
Firewall - provides a layer of security to prevent unauthorized network access
Access Point - extend the network connection to another location
Modem - provides Internet connection service from an ISP

Multiple Choice

What does Firewall Do?

• Prevents Hackers
• Install Viruses
• Give you SD cards
• Blocks all content

Multiple Choice

What is biometric authentication?

• A method of verifying user requests using distinct biological or physiological characteristics

• A method of verifying user requests using text-based passwords

• A method of verifying user requests using behavioral biometrics

• A method of verifying user requests using geofencing

Multiple Choice

What are some examples of physical factors used in biometric authentication?

• Fingerprinting, retina scans, facial recognition, and voice recognition

• Geofencing, time of request monitoring, and hard tokens

• Behavioral biometrics and password retrievals

• Text-based passwords and geofencing

Multiple Choice

Which network component is responsible for directing data between different networks?

• Modem

• Firewall

• Switch

• Router

Multiple Choice

What is the purpose of a network switch in a computer network?

• A network switch is used to play video games on the computer network

• A network switch is used to make phone calls within the local area network (LAN)

• A network switch is used to control the temperature of the computer network

• A network switch is used to connect multiple devices within a local area network (LAN) and manage the traffic between them.

Multiple Choice

What is the purpose of a network cable in a computer network?

• To store data in the network

• To cool down the devices in the network

• The purpose of a network cable in a computer network is to physically connect devices to enable communication and data transfer between them.

• To provide power to the devices in the network

Multiple Choice

What is the function of a network repeater/extender/access point in a computer network?

• A network repeater is used to amplify sound in a computer network.

• A network repeater is used to regenerate and retransmit signals to extend the reach of a network.

• A network repeater is used to encrypt data in a computer network.

• A network repeater is used to block unauthorized users from accessing the network.