LO2 Network and interconnection devices

-
Network devices

Workstation
Description
Workstation is a computer for the individual users which is capable and faster than a personal computer. It is commonly used for business or professional use.

Function
Workstation has advanced graphics capabilities, powerful microprocessor and large storage size which allow it to reduce the number of instructions that stored in microprocessor and it also allows high resolution and has advanced abilities to communicate with other clients.

Diagram
Image result for workstation
NIC
Description
Network Interface Card (NIC) is an adapter that has been installed into the computer which provides physical interface between the cable and computer.
Function
NIC is used to received data and translate data into bytes so that the computer can understand it.
Diagram
Image result for nic\
Types of Server
Print
Features
It can support multiple printer queues.
It can support multiple printing methods.
It is easy to configure the multi-panel graphical user interface.
Functions
It manages print requests and create printer queue status information to be available to the users and network administration.
Image
Image result for print server
Mail
Features
It is used to saved and managed Email in the mail server capacity.
Functions
It can receive e-mails from the client computers and deliver them to other mail servers. 
Image
Web
Features
It is used to saved Web browser.
Functions
Image
Proxy
Features
Intermediary server between client and the Internet.
Proxy server allow my IP address to be anonymous and hidden from the Internet.
Functions
To make sure the network is secure in order to access the Internet.
Image
File
Features
Files, images, audios and videos are saved and managed in file server.
Functions
Provides clients to access records within the files from the server.
Image
Interconnection devices
Router
Description
Acts as the central point among the computers and other network devices.
Purpose
It process logical addressing information in the IP address and it does not allow broadcasts.
Features
It has routing table.
Functions
It determines the destination of IP address when router receives the data. when it found the IP, then the files will be sent.
Diagram
Switch
Description

 Purpose
Features
Functions
Diagram
Wireless Access Point
Description
Purpose
Features
Functions
Diagram



Comments

Post a Comment

Popular posts from this blog

WAN Technology

-
Image
MPLS Describe MPLS is stands for Multiprotocol label switching which is a mechanism used inside the computer network infrastructures to speed up the time it takes a data packet to flow from a node to another. Diagram How it works In MPLS , packets are directed through the network based on an assigned label with original IP routing in a packet- switched network, each data packet could determine its own path through the network. Examples Traffic engineering network management ATM Description ATM is a technique for packet switching that is used by telecommunication networks which they used asynchronous time-division multiplexing to encode data into small fixed sized cells. It is known as Asynchronous Transfer Mode. Diagram How it works The sender and receiver on a network creates a fixed channel between each other before sending the data and then the information will be sent in order. Example It is used in the campus backbone. References Tech...
Read more

LO3 - Know the features and functions of information systems

-
3.1 Features of Information Systems An information system has 5 parts: Data Raw information The data input to the system must be accurate It should be stored in logical way such as pen drive and hard disk. People People are involved both in capturing the data and manage the information. Hardware Management information system (MIS) may run on just the sales and finance director's PC. It usually runs on a server, either shared or dedicated with Internet or intranet access for those who need it. Used for storing data. It is unusual to require specialized hardware. computer and server Software MIS can be built using standard software. manage the information in the computer. Telecommunications To connect with the use of internet. MIS are delivered across an intranet within a company's firewall for protection from competitors and others seeking this valuable management information. Used to protect and secure the data. 3.2 Functions of Information Systems ...
Read more

WDD - LO1 - MANAGE SECURE SITES

-
1. Keep the Software Up to Date Always keep the website to be up to date so that no hacker will not easily access onto the information from the web server. - Need to keep the website up to date so that to protect it from getting new threats. 2. Block SQL Injection SQL injection is an attack which vulnerable on bypassing the security of the website application. By inputting validation and limiting the queries can prevent the SQL injection attacks. - adding of codes to the database with a proper language 3. Prevent XSS Cross-site Scripting (XSS) will manipulate the vulnerable website into a malicious code for the user and when it is executed, the attacker can access and interact with the user's application. - Client-side - the attacker create a script or code to bypass the security of the application. 4. Providing Minimal Error Messages  Creating a least error messages for the website to be secured so that the information of the website will not be lost. such as Err...
Read more