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Which two characteristics are associated with UDP sessions |
Received data is unacknowledged. Destination devices receive traffic with minimal delay. . |
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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. |
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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? |
multiplexing |
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What kind of port must be requested from IANA in order to be used with a specific application? |
registered port |
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What type of information is included in the transport header |
destination and source port numbers |
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What is a socket? |
the combination of a source IP address and port number or a destination IP address and port number |
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What is the complete range of TCP and UDP well-known ports? |
0 to 1023 |
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Which flag in the TCP header is used in response to a received FIN in order to terminate connectivity between two network devices? |
ACK |
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What is a characteristic of a TCP server process? |
There can be many ports open simultaneously on a server, one for each active server application. |
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Which two flags in the TCP header are used in a TCP three-way handshake to establish connectivity between two network devices? |
SYN ACK |
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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? |
10 segments |
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Which factor determines TCP window size? |
the amount of data the destination can process at one time |
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During a TCP session, a destination device sends an acknowledgment number to the source device. What does the acknowledgment number represent? |
the next byte that the destination expects to receive |
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What information is used by TCP to reassemble and reorder received segments? |
sequence numbers |
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What does TCP do if the sending source detects network congestion on the path to the destination? |
The source will decrease the amount of data that it sends before it must receive acknowledgements from the destination. |
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What is a characteristic of UDP? |
UDP reassembles the received datagrams in the order they were received. |
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What does a client do when it has UDP datagrams to send? |
It just sends the datagrams. |
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What happens if the first packet of a TFTP transfer is lost? |
The TFTP application will retry the request if a reply is not received. |
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A host device is receiving live streaming video. How does the device account for video data that is lost during transmission? |
The device will continue receiving the streaming video, but there may be a momentary disruption. |
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Why does HTTP use TCP as the transport layer protocol? |
because HTTP requires reliable delivery |
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When is UDP preferred to TCP? |
when an application can tolerate some loss of data during transmission |
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Which three application layer protocols use TCP? |
HTTP SMTP FTP |
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