Lesson 1 To 2 Flashcards
What is a computer network?
A collection of computing devices connected in order to communicate and share resources.
How can connections between computing devices be established?
Connections can be physical using wires or cables or wireless using radio waves or infrared signals.
What are the key functions of a computer network?
- Communication
- Resource Sharing
- Information Access
- Centralized Management
What does data transfer in a computer network facilitate?
The transmission of data between devices, such as files, emails, and messages.
What is remote access in the context of computer networks?
Allows users to access and control devices and resources from remote locations.
What is hardware sharing in a computer network?
Enables the sharing of physical resources like printers, scanners, and storage devices.
What is software sharing in a computer network?
Allows multiple users to access and utilize shared software applications.
What is the significance of internet connectivity in a computer network?
Provides access to the vast amount of information available on the internet.
What does network administration allow in a computer network?
Centralized management and monitoring of network devices and resources.
Define ‘Node’ in networking.
Any device on a network.
What is throughput in networking?
The actual data transfer rate that is sent over a network.
What does latency measure in networking?
The time taken for a data packet to reach its destination after being sent.
What is a ‘Client’ in the context of networking?
Any computer hardware or software device that requests access to a service provided by a server.
Define ‘Server’ in networking.
A computer program or device that provides a service to another computer program and its user.
What is a protocol in networking?
A set of rules that defines how data is formatted and processed on a network.
What is the role of a file server?
A computer that stores and manages files for multiple users on a network.
What is the function of a web server?
A computer dedicated to responding to requests for web pages from browser clients.
What is network topology?
A physical arrangement through which various endpoints and links in an enterprise network communicate with each other.
List some common physical network topologies.
- Point to Point
- Bus
- Ring
- Star
- Tree
- Mesh
- Hybrid
Describe point-to-point topology.
A simple topology that directly links two nodes and reserves the entire bandwidth of the connection for them to communicate.
What characterizes bus topology?
All the nodes are linked using a single cable with a terminator on both ends.
In a ring topology, how is data transmitted?
Data moves from one node to another, either unidirectionally or bidirectionally.
What defines star topology?
All nodes are connected to a central hub using a communication link.
Describe tree topology.
Nodes are arranged in a configuration that resembles a tree with endpoints connected to mid-level nodes linked to a trunk.
