Karteikarten
Network bandwidth, latency and protocols
Karten in diesem Stapel (6)
- 1ICT Latency & Bandwidth Bandwidth is the number of bits that can go through the network connection in 1 second. It is measured in bits per second (bps) Latency is the time in milliseconds between a bit leaving one device and arriving at the other. It is measured in milliseconds (ms)For streaming videos from YouTube you need a high bandwidth network connection, otherwise the video will keep pausing as your computer waits for more bits to arrive.
To get quick search results from Google you need a low latency network connection. Information is travelling both directions so it needs to arrive quickly. - 2The best networks including those suitable for online gaming, have high bandwidth and low latency. Remember that low bandwidth and high latency are usually bad from a user's point of view.Protocols
Protocols are the rules that devices must follow when they are communicating with each other: You need to know about VoIP, POP, IMAP and SMTP. - 3POP2, IMAP and SMTP are all communications protocols used when sending and receiving emails.VoIP
Voice over Internet Protocol is the set of rules for transmitting audio messages over the Internet. The rules enable you to make free voice calls from your computer to your friends computers. It is particularly useful for keeping in touch when travelling or with someone who is travelling. - 4SMTP Simple Mail Transfer Protocol is used when email is sent from the senders email client, for example Outlook, to the senders email server and when the email is delivered to the recipients email server.POP3
if the recipient uses Post Office Protocol to read the email, the mail server will download the email to the computer. The email is then deleted from the server and can be read offline. - 5IMAP If the recipient uses Internet Message Access Protocol, the email is read on the mail server. The email is not deleted from the server and can be accessed anywhere using any computer with and Internet Connection.You need to know about the communication protocols used to surf the internet (HHTP) and send confidential information (HTTPS)
(HTPP) Hypertext Transfer Protocol is the protocol of the World Wide Web (WWW) - 6When you type in a website address the client (your browser) uses HTTP to ask the web server to send the files needed to show the web page on your computer.VLE'S
Virtual Learning Environments provide information to help students learn, for example access to additional to notes and homework in school or remotely from home as long as they have an Internet connection
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- Karteikarten am Ohne Titel, erstellt von zarasemaili am 28/12/2014.
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