Chapter 9
What is the complete range of TCP and UDP well-known ports?
0 to 1023
What range of ports can either be used by TCP to identify the requested service on the destination devices or as a client source port?
49152 to 65535
What is a characteristic of UDP?
Connectionless
Which TCP header control bit is set on to terminate a TCP conversation?
FIN
What are the primary purposes of the transport layer?
Identifying the proper application for each communication stream Tracking the individual communication between applications on the source and destination hosts Segementing data for and reassembling segmented data into streams of application data at the destination
What is an advantage that UDP has over TCP?
Low overhead
What is assigned by the transport layer to identify an application or service?
Port
Which two flags in the TCP header are used in a TCP three-way handshake to establish connectivity between two network devices?
SYN ACK
Match the characteristics to the protocol category: Window size Checksum Connectionless Best for VoIP Port numbers 3-way handshake
TCP Both TCP and UDP UDP UDP Both TCP and UDP TCP
Which of the following types of applications would use UDP?
TFTP DHCP VoIP
A client is downloading a large file from a server using FTP. One of the segments is lost during transit. What will happen?
The FTP client responds to the server with a smaller window size in the TCP header.
Match each application to its connectionless or connection-oriented protocol. TFTP Telnet DHCP FTP HTTP
UDP TCP UDP TCP TCP
What does UDP do when receiving messages that are more than one datagram in length?
UDP reassembles that data in the order it was received and passes it to the application
Which TCP header field specifies the number of segments that can be accepted before an acknowledgement is required?
Window Size
Which two TCP header fields are used to confirm receipt of data?
acknowledgment number sequence number
A host device sends a data packet to a web server via the HTTP protocol. What is used by the transport layer to pass the data stream to the proper application on the server?
destination port number
What is a beneficial feature of the UDP transport protocol?
fewer delays in transmission
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
Which factor determines TCP window size?
the amount of data the destination can process at one time
What is a socket
the combination of a source IP address and port number or a destination IP address and port number
