1.5 computing

1.5 computing

1. POP-Post office protocol

   • IP address-Internet protocol address
     • HTTPS-Hypertext transfer Protocol Secure
       • • There is a high level of dependence on one single, central device. • If the central device fails the whole network will fail. • The use of a switch or router could increase the cost of the whole network. • The performance of the network will be dependent upon the specification of the central device / switch. • The number of additional devices that can be added to the network could be restricted by the central device / switch.
     • FTP - File Transfer Protocol
       • A client server method of requesting and delivering HTML files
         • HTTP-Hypertext Transfer protocol
       • IP address
         • • Network communication components are standardised which helps to ensure that different types of hardware and software are able to communicate. • Through separating the overall network communication processes it makes troubleshooting easier should an error occur.
   • TCP/IP-Layer 3-5

2. SMTP-Simple Mail Transfer Protocol

3. TCP/IP stands for Transmission control protocol/Internet Protocol

   • MAC address is found on network interface cards. Routes frames on a local area network between network interface cards.This is also known as media access control address
     • IMAP-Internet message Access protocol(better than POP
       • What difference us a user likely to experience when upgrading from a b series router to an n series router? The user is likely to experience faster data transmission (accept a faster network speed).

4. Protocol means a set of rules that govern how devices communicate

5. found on network interface cards.

6. HTTP transmits data over the internet in a unsecure format whereas HTTPS uses encryption so that any data that is intercepted is meaningless.

   • A client server method of requesting and delivering HTML files.
     • Media access control address
       • A MAC address is permanently assigned to a device on the network whereas an IP address may change when the device joins a different network.
   • A static IP address never changes, whereas a dynamic IP address may change when you log on to a network or change networks.

7. • Data is split into individual packets • Each packet is given a packet number which shows the numerical order of the packet • The router reads the packet and sends it on to the next location • The receiving device will read the packet number and reassemble the data in the correct order • As the device reassembles the data from the packets if a packet is missing it will send an error message to the sending device requesting that the packet is resent • The sending device will resend the packet