Network Protocols & Standards

-
TCP/IP
Known as Transmission Control Protocol/ Internet Protocol.
Commonly used network protocol worldwide.
It provides a connection for communication between two clients using two data streams.
TCP has to establish a connection channel with the target node.
It make sure that the file is send and receive successfully and also if not successful, it will send error message.


UDP
User Datagram Protocol
Provides one to one communication
Unreliable communication device

AppleTalk
Used for Apple IOS and Macintosh OS.

802.2 ( Logical Link Control )
Known as Logical Link Control layer where is used to understand the data link layer.
The purpose is to translate the message.

802.3 (Ethernet)
Used Network Interface Card (NIC) to connect the PC to the Internet.

FDDI
Fiber Distributive Data Interface
Used 2 rings, Primary and Secondary.
Primary - Anticlockwise
Secondary - Clockwise

Purpose - Sending messages is faster and if one ring is broken, can used another ring.

802.5 (Token Passing)
Token ring is use in the ring topology and utilizes a token to control the transmission of data on the network.


Comments

Post a Comment

Popular posts from this blog

Data Validation

-
Image
Code # Name: Muhamad Raziq Aiman bin Haji Rosman # Version: Python 3 # Date: 24 January 2018 validcharacters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ " while True : var1 = input ( "Enter your name:" ) if all (char in validcharacters for char in var1): print ( "Your name is " + var1) break print ( "That's invalid, please try again. Please enter characters A-Z and space only" ) def input_number (message): while True : try : userInput = int ( input (message)) except ValueError : print ( "Not an integer! Try again." ) continue else : return userInput break age = input_number( "How old are you?" ) print ( "You are " + str (age) + " years old" ) Output
Read more

LO1 - Understand how organisations use business information

-
Image
1.1 Types of Information 4 types of information: - Qualitative - Description - Description about the colors, textures, smells, taste and appearances. Quantitative - Numbers - Numerical information - Length, height, weight, speed, time, cost and ages. Primary - Data that you collected yourself - Real-time data -Sure about sources of data - Costly and time-consuming process - More flexible - Direct observation - Surveys - Interviews Secondary -  Data that you collected from external resources - Past data - Not sure about sources of data - Cheap and not time-consuming - Less flexible - The Internet - Televisions - Stories told verbally 1.2 Purpose of Information Operational Support - System - Data input is done by the end user - Processed to generate information products - User - Input data - System process - Output information - Monitoring and controlling its activities - A business can make immediate use of the information - Example of op...
Read more