Local Area Networks Flashcards
What is a network?
A collection of computers or other computing devices connected by communication media to allow users to share software, hardware, data, and communicate.
Define Local Area Network (LAN).
A network connecting computers in a small area such as a school, university campus, or company offices in one building.
What is a Wireless LAN (WLAN)?
A LAN which uses wireless (radio waves) to communicate rather than cables.
What is an intranet?
An Internet-like environment consisting of web pages related to an organization’s business, accessible only within the organization.
What does network topology refer to?
The mapping of a LAN design, referring to how various nodes, devices, and connections are arranged in relation to each other.
Differentiate between physical and logical network topology.
Physical topology refers to actual connections (wires, cables), while logical topology is how the network is set up, including node connections and data transmission.
Fill in the blank: A network type in which every computer and device is connected to a single cable is called _______.
Bus Topology
List three features of Bus Topology.
- Transmits data only in one direction
- Every device is connected to a single cable
- Cost effective and easy to expand
True or False: In Bus Topology, if one cable fails, only the connected devices are affected.
False
What is Star Topology?
A topology where all computers and devices are connected to a main hub or switch, which manages the flow of data.
List two advantages of Star Topology.
- Fast performance with few nodes and low network traffic
- Easy to troubleshoot and modify
What is Ring Topology?
A topology where nodes are arranged in a circle, allowing data to travel in one or both directions.
What are the two methods of data transmission in Mesh Topology?
- Routing
- Flooding
Define Tree Topology.
A topology with a root node and all other nodes connected to it, forming a hierarchy.
What is Hybrid Topology?
A mixture of two or more topologies, inheriting their advantages and disadvantages.
What does NIC stand for?
Network Interface Controller
What is the role of a server in a network?
A computer that provides shared resources, such as files and Internet access, to network users.
What is a file server?
The most common type of server used to store files accessible by users on the network.
What is the primary function of an email server?
To handle the email needs of an organization.
Fill in the blank: The rate at which data is transferred over media used is known as _______.
Data Transmission Speed
What is UTP?
Unshielded Twisted Pair, the most common cable used for wired networks.
True or False: Fibre optic cables are primarily used for connecting devices within a LAN.
False
What is the purpose of wireless access points?
To allow communication between wireless devices and connect them to a wired network.
What does network security refer to?
Policies put in place to ensure the security of a network by preventing unauthorized access to information.
List three tips for creating secure passwords.
- At least 8 characters long
- Include upper and lowercase letters, numbers, and special characters
- Avoid easily guessable personal information
What is the role of a network administrator?
To manage the network, ensuring its security and functionality.
What is the purpose of an Acceptable Use Policy (AUP)?
To outline the rights and responsibilities of users in networked environments
An AUP is crucial for maintaining ethical practices in organizations and schools.
What types of rules are included in an Acceptable Use Policy?
Basic netiquette rules and responsible computer usage, restrictions related to Internet usage
These rules are designed to protect users while they are online.
What does an Acceptable Use Policy serve as between the organization and the user?
A contract summarizing what users can and cannot do
It also outlines possible consequences for non-compliance.
What ethical aspects does an Acceptable Use Policy cover?
- Ethical use
- Legal use
- Safe use
- Privacy of other users
These aspects are important for maintaining a respectful online environment.
What are some restrictions mentioned in an Acceptable Use Policy?
- Amount of data downloaded
- Accessing objectionable/offensive material
- Use of portable storage devices
- Installing hardware or software
These restrictions vary based on the organization’s policies and local laws.
What procedures should users follow if they are victims of identity theft or malware?
Follow specific procedures outlined in the AUP
This ensures users know how to respond to such incidents effectively.
What hints does an Acceptable Use Policy provide to users?
Hints to avoid plagiarism and breaking copyright law
This guidance is essential for maintaining ethical academic and professional standards.
True or False: An Acceptable Use Policy includes consequences for violating its conditions.
True
Clear consequences help enforce compliance with the policy.
Fill in the blank: An AUP puts the duty of using the network in a responsible way on the _______.
user
This emphasizes individual responsibility in networked environments.
What is a consequence of not complying with the Acceptable Use Policy?
Possible disciplinary action or loss of network access
Consequences are designed to deter unethical behavior.
What is the significance of netiquette in an Acceptable Use Policy?
It sets the standard for respectful online communication
Following netiquette helps create a positive online environment.
