Chapter 7 Quiz: Cisco 1

Which number or set of numbers represents a socket?

192.168.1.1:80

Which two applications use UDP as the transport layer protocol?

DNS queries, DHCP

What is the application layer service being requested from Server0 by PC0?

HTTPS

What step in a TCP session does this capture represent?

Initial sequence number establishment

Which three fields are used in a UDP segment header?

Length, Source Port, Checksum

Match the TCP flag to the correct step in the session establishment sequence.

Step 1: SYN Step 2: SYN + ACK Step 3: ACK

Refer to the exhibit. What does the value of the window size specify?

The amount of data that can be sent before an acknowledgement is required

Which action is performed by a client when establishing communication with a server via the use of UDP at the transport layer?

The client randomly selects a source port number

When a client connects to an HTTP server by the use of a randomly generated source port number, what destination port number will the HTTP server use when building a response?

The original source port number that was randomly generated by the client

What happens if part of an FTP message is not delivered to the destination?

The part of the FTP message that was lost is re-sent

What is the purpose of using a source port number in a TCP communication?

To keep track of multiple conversations between devices

What is an advantage of UDP over TCP?

UDP communication requires less overhead.