C2 - W3

Ports 1024-49151 are known as ______ ports.

• System

• Registered

• Destination

• Source

The instantiation of an endpoint in a potential TCP connection is known as a ______.

• Socket

• Port

• Sequence Number

• TCP segment

The sequence of SYN, SYN/ACK, and ACK packets is known as the _________.

• Three-way handshake

• Four-way handshake

• Two-way handshake

• High five

Ports that are generally used to establish outbound connections are known as ______ ports.

• System

• Reserved

• Ephemeral

• Registered

The concept of taking traffic that’s all aimed at the same node and delivering it to the proper receiving service is known as _________.

• Multiplexing

• De-multiplexing

• Routing

• Encapsulation

A user requests an unencrypted webpage from a web server running on a computer, listening on the Internet Protocol address 10.1.1.150. What will be the socket address?

• 10.1.1.150:21

• 10.1.1.150:80

• 10.1.1.150.21

• 10.1.1.150:443

What port does the File Transfer Protocol (FTP) typically listen on?

• 80

• 25

• 21

• 3389

Which field in a Transmission Control Protocol (TCP) header provides the next expected segment?

• Sequence number

• Acknowledgment number

• Checksum

• Data offset

A communication between two devices is over the maximum limit of an ethernet frame size. The Transmission Control Protocol (TCP) splits up the data into segments. Which field in the header helps keep track of the many segments?

• Urgent pointer

• Acknowledgment number

• Sequence number

• Checksum

How many bits are in the checksum field in a Transmission Control Protocol (TCP) header?

• 8

• 16

• 4

• 12