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Questions and Answers
What type of network is specifically designed to cover a small geographic area?
What type of network is specifically designed to cover a small geographic area?
Which of the following is NOT a component of a communication protocol?
Which of the following is NOT a component of a communication protocol?
What is the function of the Domain Name System (DNS)?
What is the function of the Domain Name System (DNS)?
Which option correctly describes an IP address?
Which option correctly describes an IP address?
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Which of the following is characteristic of a Wide Area Network (WAN)?
Which of the following is characteristic of a Wide Area Network (WAN)?
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Which term denotes the safeguards for ensuring data confidentiality and integrity in a network?
Which term denotes the safeguards for ensuring data confidentiality and integrity in a network?
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What aspect of communication protocol prevents data transmission faults from going undetected?
What aspect of communication protocol prevents data transmission faults from going undetected?
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In a network context, what does 'flow control' mainly refer to?
In a network context, what does 'flow control' mainly refer to?
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Study Notes
BMT 342: Basics of Networking - Lecture 3
- Course name: BMT 342 Basics of Networking
- Lecture number: 3
- Instructor: Dr. Asma Abahussin
- Department: Biomedical Technology
- College: College of Applied Medical Sciences
- University: King Saud University
Objectives
- Master basic computer networking terminology
- Understand fundamental networking concepts
- Identify and describe basic network devices
Network Basic Terminologies
- A network is a group of connected computers and devices enabling communication and data exchange
- Two main network types:
- Local Area Network (LAN): Covers a small area like an office or home
- Wide Area Network (WAN): Spans a large area, encompassing cities, countries, or even the entire world. WANs often connect multiple LANs for long-distance communication
Network Basic Terminologies (Continued)
- Communication Protocol: A set of rules and methods enabling seamless communication between different devices and systems. Protocols are agreed upon at both the sending and receiving ends.
- Components of a communication protocol often involve
- Syntax: The structure, or format of data being exchanged
- Timing: The synchronization for sending and receiving data to ensure appropriate speed and order
- Flow Control: Managing the speed of data transfer to prevent overwhelming the receiver
- Components of a communication protocol often involve
Communication Protocol (Cont'd)
- Error Control: Detects and fixes faults in data transmission.
- Security: Protects the data's confidentiality, integrity, and validity. This includes techniques like encryption, authentication, access controls, and other security procedures
Network Basic Concepts
- Internet Protocol (IP) Address: A unique numerical identifier for each network device; allows devices to identify each other and communicate.
- Example: 142.251.32.46
- Domain Name System (DNS): A naming database that associates web IP addresses with domain names (e.g., web addresses or URLs)
- Example:
www.google.comtranslates to the IP address 142.251.32.46
- Example:
- DNS is essentially the phonebook of the Internet
Network Basic Devices
- Router: Connects a LAN to the internet through a modem. It uses DHCP (Dynamic Host Configuration Protocol) to assign unique IP addresses to each device on the LAN. It also uses NAT (Network Address Translation) to manage data traffic between the LAN and the internet, hiding private LAN IP addresses from the internet.
- LAN devices are typically connected either via wires or wirelessly to the router.
- Modem: The device that modulates signals for transmission over communication lines (cable, satellite). It receives data from the internet, and provides the connection from the router.
- Modem-Router: Combines the functions of a modem and a router into one device.
Example of a LAN setup
- Displays a diagram with numbered devices in a LAN network, each with unique IP addresses, connected to a router that has a public IP address to connect from.
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Description
In this quiz, you'll explore the fundamental terms and concepts of computer networking taught in BMT 342. Focus is placed on the differences between Local Area Networks (LAN) and Wide Area Networks (WAN), along with essential networking devices and communication protocols. Test your knowledge and solidify your understanding of these basic networking principles.
