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2.5 Fundamentals Of Communication and Networking > 4.9.4 TCP/IP > Flashcards

4.9.4 TCP/IP Flashcards

1
Q

When are socket addresses formed?

A

When an IP address is combined with a port number, a socket address is formed.

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2
Q

What are socket addresses formed from?

A

Formed from an IP address, followed by a colon, followed by the port number in use.

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3
Q

What is the purpose of the socket address?

A

Identifies which of the applications on the recipient device a packet should be sent to.

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4
Q

What port is the FTP protocol?

A

20 & 21

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5
Q

What is the purpose of FTP?

A

• Used for sending files between devices.

FTP client software can run on devices allowing them to connect to FTP servers which send files requested by the client.

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6
Q

How does FTP work?

A

FTP client software can run on devices allowing them to connect to FTP servers which send files requested by the client.

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7
Q

What are the two methods of accessing FTP?

A

Accessing servers anonymously or non-anonymously by logging in with a username and password.

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8
Q

What is the SSH port?

A

22

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9
Q

What is the purpose of SSH?

A

Used for remote management of computers, allowing computers to be accessed and controlled remotely.

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10
Q

What does SSH require?

A

SSH requires a username/password combination and encrypts information during transmission.

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11
Q

What are SSH clients?

A
  • SSH clients are pieces of software which can be used to make a TCP connection to a remote port.
  • Once a connection is established, commands for application level protocols can be sent to the remote computer.
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12
Q

How does SSH work?

A

SSH clients make a TCP connection on a remote port, once a connection is established commands for application level protocols can be sent to the remote computer.

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13
Q

What port is HTTP?

A

80

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14
Q

What is the purpose of HTTP?

A

Web servers hold web pages in text form,
which they can deliver to clients using HTTP.
Application software on the client receives
these text files and renders them as web
pages.

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15
Q

What is the port for HTTPS?

A

443

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16
Q

What is the difference between HTTPS and HTTP?

A

Encrypts information during transmission.

17
Q

What is the advantage of HTTPS over HTTP?

A
  • Keeps information sent by clients secure

* Helps prevent information from being tampered with or modified during transmission.

18
Q

What is the port for POP3?

A

110 & 995

19
Q

What is the purpose of POP3?

A
  • Used for retrieving emails from an email server.

* POP3 communicates with email servers to check for and download any new messages

20
Q

What is the purpose of email servers?

A

Email servers are responsible for receiving and sending emails.

21
Q

What is the port for SMTP?

A

25, 587 & 465

22
Q

What is the purpose of SMTP?

A

Used for sending emails. SMTP is used between a client and an email server.

2.5 Fundamentals Of Communication and Networking (13 decks)

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