Paper 2: A-Level Computer Science > Protocols > Flashcards

Protocols Flashcards

(18 cards)

Study These Flashcards
1
Q

What does FTP stand for?

A

File Transfer protocol

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2
Q

What does SSH stand for?

A

Secure Shell protocol

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3
Q

What does POP3 stand for?

A

Post Office protocol

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4
Q

What does IMAP stand for?

A

Internet Message Access protocol

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5
Q

What does SMTP stand for?

A

Simple Mail Transfer protocol

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6
Q

What does HTTP/HTTPS stand for?

A

Hypertext Transfer protocol / Hypertext Transfer protocol secure

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7
Q

What does IP stand for?

A

Internet protocol

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8
Q

What does TCP stand for?

A

Transmission control protocol

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9
Q

What does WPA/WPA2 stand for?

A

Wifi protected access / Wifi protected access 2

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10
Q

What does the WPA/WPA2 do?

A

It is built into a devices NIC, it provides strong encryption

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11
Q

What is a protocol?

A

A set of rules that defines how data is sent over networks

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12
Q

What do protocols determine?

A
  • The type of transmission (synchronous or asynchronous)
  • The types of interfaces (serial or parallel)
  • The transmission channel (wired or wireless)
  • The speed of transmission (bit rate or baud rate)
  • The error checking technique
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13
Q

What is the FTP used for?

A
  • Used to transfer data across a network

- Works in the Application layer of the TCP/IP stack

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14
Q

What is the SSH used for?

A
  • Used for remotely accessing/managing a computer
  • Modern replacement of Telnet
  • Uses public key encryption and digital certificates to authenticate users
  • Can be used with other protocols to create a tunnel through port 22
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15
Q

What is SMTP used for?

A

Protocol used for sending emails

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16
Q

What is POP3 used for?

Study These Flashcards
A

Retrieves emails that are temporarily stored on email servers, once retrieved the emails are deleted from the server

17
Q

What is IMAP used for?

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A

Protocol that retrieves emails that are kept stored on email servers, maintaining synchronicity between devices

18
Q

What is the Telnet protocol used for?

Study These Flashcards
A
  • Used for remotely accessing/managing a computer

- Doesn’t use encryption so was replaced by SSH

Paper 2: A-Level Computer Science
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