Introduction to Networks (Version 6.0) - ITN Chapter 9 Exam

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the next byte that the destination expects to receive

During a TCP session, a destination device sends an acknowledgment number to the source device. What does the acknowledgment number represent?

The source will decrease the amount of data that it sends before it must receive acknowledgements from the destination.

What does TCP do if the sending source detects network congestion on the path to the destination?

It just sends the datagrams.

What does a client do when it has UDP datagrams to send?

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

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

The TFTP application will retry the request if a reply is not received.

What happens if the first packet of a TFTP transfer is lost?

sequence numbers

What information is used by TCP to reassemble and reorder received segments?

UDP reassembles the received datagrams in the order they were received.

What is a characteristic of UDP?

There can be many ports open simultaneously on a server, one for each active server application.

What is a characteristic of a TCP server process?

the combination of a source IP address and port number or a destination IP address and port number

What is a socket?

0 to 1023

What is the complete range of TCP and UDP well-known ports?

registered port

What kind of port must be requested from IANA in order to be used with a specific application?

destination and source port numbers

What type of information is included in the transport header?

when an application can tolerate some loss of data during transmission

When is UDP preferred to TCP?

the amount of data the destination can process at one time

Which factor determines TCP window size?

ACK

Which flag in the TCP header is used in response to a received FIN in order to terminate connectivity between two network devices?

SMTP FTP HTTP

Which three application layer protocols use TCP? (Choose three.)

Destination devices receive traffic with minimal delay. Received data is unacknowledged.

Which two characteristics are associated with UDP sessions? (Choose two.)

ACK SYN

Which two flags in the TCP header are used in a TCP three-way handshake to establish connectivity between two network devices? (Choose two.)

because HTTP requires reliable delivery

Why does HTTP use TCP as the transport layer protocol?

10 segments

A PC is downloading a large file from a server. The TCP window is 1000 bytes. The server is sending the file using 100-byte segments. How many segments will the server send before it requires an acknowledgment from the PC?

The device will continue receiving the streaming video, but there may be a momentary disruption.

A host device is receiving live streaming video. How does the device account for video data that is lost during transmission?

multiplexing

A host device needs to send a large video file across the network while providing data communication to other users. Which feature will allow different communication streams to occur at the same time, without having a single data stream using all available bandwidth?


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