CCNA 1 - Module 1 & 2 Flashcards
– end device / clients
Host
– number that identifies the host within a particular network. It identifies the host and the network to which the host is attached.
Internet protocol (ip) address
– computers with software that allow them to provide information, like email or web pages, to other end devices on the network
Servers
TYPES OF SERVER SOFTWARE
- email server
- web server
- file server
– runs email server software (ms outlook, gmail, etc)
email server
– runs web server software (internet explorer, chrome)
Web server
– stores corporate and user files in a central location (file explorer)
File server
– many computers function as the servers and clients on the network
Peer-to-peer network
– is either the source or destination of a message transmitted over the network.
End device
– connect the individual end devices to the network.
Intermediary devices
– also known as a multiport repeater.
Ethernet hub
– provides the channel over which the message travels from source to destination.
Network media
THREE TYPES OF MEDIA
- metal wires (copper) within cables
- glass/plasiting fibers within cables (fiber-optic-cable)
- wireless transmission
- – data is encoded into electrical impulses.
Metal wires (copper) within cables
- – data is encoded into Pulses of light.
Glass or plastic fibers within cables (fiber-optic-cable)
- – data is encoded via modulation of specific frequencies of electromagnetic waves.
Wireless transmission
– use symbols, like those shown in the figure, to represent the different devices and connections that make up a network.
Network representation / diagram
- – physically connects the end device to the network.
Network interface card (nic)
- – a connector or outlet on a networking device where the media connects to an end device or another networking device.
Physical port
- – specialized ports on a networking device that connect to individual
Interface
– visual map of how the network is connected.
Topology diagram
TWO TYPES OF TOPOLOGY DIAGRAM
- physical td
- logical td
- – illustrate the physical location of intermediary devices and cable installation
Physical topology diagram
- – illustrate devices, ports, and the addressing scheme of the network.
Logical topology diagram
- – connect a few computers to each other and to the internet.
Small home networks
- – allows computers in a home office or a remote office
Small office and home office networks (soho)
- – school / corp. Can have many locations with hundreds or thousands of interconnected hosts.
Medium to large networks
- – provides access to users and end devices in a small geographical area.
Local area networks (LANS)
- – the internet is a network of networks that connects hundreds of millions of computers world-wide.
Worldwide networks
- – provides access to other networks over a wide geographical area
Wide area networks (WANS)
– worldwide collection of interconnected networks (internetworks, or internet for short)
Internet
– a private connection of LANS and WANS that belongs to an organization.
Intranet
– provide secure and safe access to individuals who work for a different organization but require access to the organization’s data.
Extranet
- data signal transmits on the same cable that delivers cable television it provides a high bandwidth, high availability, and an always-on connection to the internet.
Cable
– also provide high bandwidth, high availability, and an always-on connection to the internet. DSL runs over a telephone line
Digital subscriber lines (DSL)
– uses a cell phone network to connect.
Cellular
– benefit in those areas that would otherwise have no internet connectivity at all
Satellite
– an inexpensive option that uses any phone line and a modem. The low bandwidth provided
Dial-up telephone
– reserved circuits within the service provider’s network that connect geographically separated offices for private voice and/or data networking.
Dedicated leased line
– ethernet wan. It extends LAN access technology into the wan. Ethernet is a LAN technology you will learn about in a later module.
Metro ethernet
– popular choice is symmetric digital subscriber line (SDSL) which is like the consumer version of DSL but provides uploads and downloads at the same high speeds.
Business DSL
– it can provide a connection when a wired solution is not available.
Satellite
– could not communicate with each other since they use different technologies to carry the communication signal and had their own set of rules and standards.
Traditional Separate Networks
– capable to communicate with each other since they use the same network infrastructure and uses the same set of rules and standards.
Converged Networks