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Module 14

Terms in this set (18)

The_____is responsible for logical communications between applications running on different hosts
transport layer
which two protocols does the transport layer use?
TCP and UDP
________protocols specify how to transfer messages between hosts, and are responsible for managing reliability requirements of a conversation
Transport layer
Name some functions of the transport layer:
tracking individual conversations, segmenting data and reassembling segments, adding header information, identifying the applications, conversation multiplexing
This transport layer protocol is responsible for segmenting data and ensuring that all packets arrive at their destination
TCP
If you are streaming stored audio and video, which protocol will the transport layer be using to send data to your device?
TCP
This protocol is best-effort, low-overhead, best for VoIP and DNS, and connectionless
UDP
Which protocol would be best for applications such as web browsers or email servers?
TCP, connection-oriented
T/F UDP resends lost data
F
T/F TCP sends data out of order
F, it segments data and reassembles it
A TCP segment adds _____(i.e., 160 bits) of overhead when encapsulating the application layer data
20 bytes
_____handles all tasks associated with dividing the data stream into segments, providing reliability, controlling data flow, and reordering segments
TCP
Applications that...use UDP
are designed for live video and audio streaming, handle reliability themselves, or process simple requests and replies (DHCP or DNS)
he TCP and UDP transport layer protocols use_____to manage multiple, simultaneous conversations
port numbers
socket
source port and source IP or destination port and destination IP
The_____is used to identify the server and service being requested by the client
socket
The_____acts as a return address for the requesting application
source port number
enter the command_______to list the protocols in use, the local address and port numbers, the foreign address and port numbers, and the connection state
netstat
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