Section 1: Network Components

Network+ CompTIA

List of all the Network Components

· Client

· Server

· Hubs

· Switches

· WAP/AP (wireless Access Point)

· Routers

· firewalls

· Load Balancers

· Proxy

· IDS (Intrusion Detection Systems) Internet Protocol (IP)

· IPS (Intrusion Prevention Systems)

· Controllers

· NAS (Network Attached Storage)

· SAN (Storage Area Network)

· Media

· WAN (Wide Area Network)

Clients

Users connected to the network

Server

Provides Resources to clients

Hubs

Connects devices with limitations such as network errors, due to the broadcast nature

Hubs -> Bridges -> Switches

This is old tech

Switches

Use for sending data from one port to only the intended destination port.

Smarter hubs

WAP/AP (Wireless Access Point)

Wireless devices connect to the network.

Use radio frequency waves. Not cables

Routers

Connect different networks.

Help make smart forwarding decisions based on IP

Firewalls

Security barriers to protect internal networks.

This can be software-based, hardware-based, or a combination of both.

Load Balancers

Distributes the load of traffic (network & application) across multiple servers.

Prevent one server from doing all the work

Proxy

Intermedia between the user device and the internet.

Provides:

• Web filtering

• Shared network connection

• Data caching

• Enhanced security

• Privacy.

IDS (Intrusion Detection System)

Detect and Alert system admins of unauthorized access or abnormal activities

IPS (Intrusion Prevention System)

Detects threats, but it takes Action to prevent intrusion

Controllers

It manages flow control of network devices

SDN (Software Defined Networking)

NAS (Network Attached Storage)

A file storage system provides data access to clients in the network

SAN (Storage Area Network)

A High Speed Network provides access of data storage

Media

Physical material to transmit data

• Fiber optic cable

• Copper cable

• Wireless Signals

WAN (Wide Area Network)

Used to connect networks over large areas like cities and countries