Chapter 5 - Fundamentals of TCP/IP Transport and Applications Flashcards

1
Q

What is a TCP/IP transport layer function that allows receiving hosts to choose the correct application for which the data is destined, based on the port number?

A

Multiplexing using ports.

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2
Q

What is a TCP/IP transport layer process of numbering and acknowledging data with Sequence and Acknowledgment header fields?

A

Error recovery (reliability)

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3
Q

What is the TCP/IP transport layer process that uses window sizes to protect buffer space and routing devices from being overloaded with traffic?

A

Flow control using windowing

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4
Q

What is the TCP/IP transport layer process used to initialize port numbers and Sequence and Acknowledgment fields?

A

Connection establishment and termination

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5
Q

What is the TCP/IP transport layer feature that is a continuous stream of bytes from an upper-layer process that is “segmented” for transmission and delivered to upper-layer processes at the receiving device, with the bytes in the same order?

A

Ordered data transfer and data segmentation

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6
Q

What is the port number and protocol for FTP data?

A

20, TCP

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7
Q

What is the port number and protocol for FTP control?

A

21, TCP

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8
Q

What is the port number and protocol for SSH?

A

22, TCP

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9
Q

What is the port number and protocol for Telnet?

A

23, TCP

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10
Q

What is the port number and protocol for SMTP?

A

25, TCP

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11
Q

What is the port number and protocol for DNS?

A

53, UDP, TCP

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12
Q

What is the port number and protocol for DHCP?

A

67, 68, UDP

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13
Q

What is the port number and protocol for TFTP?

A

69, UDP

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14
Q

What is the port number and protocol for HTTP?

A

80, TCP

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15
Q

What is the port number and protocol for POP3?

A

110, TCP

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16
Q

What is the port number and protocol for SNMP?

A

161, UDP

17
Q

What is the port number and protocol for SSL?

A

443, TCP

18
Q

In a TCP connection, what must happen first before data transfer can begin?

A

A three-way handshake. The host sends a SYN, the destination host replies with a SYN, ACK, and the original host replies with an ACK.

19
Q

What is a connection-oriented protocol?

A

A protocol that requires an exchange of messages before data transfer begins, or that has a required pre-established correlation between two end-points.

20
Q

What is a connectionless protocol?

A

A protocol that does not require an exchange of messages and that does not require a pre-established correlation between two endpoints.

21
Q

Multiplexing depends on what concept?

A

A socket.

22
Q

What 3 things does a socket consist of?

A

1) An IP Address
2) A transport protocol
3) A port number