Chapter 1.4,1.5,1.6 Final Flashcards
What layer in the IP stack best corresponds to the phrase: ‘passes frames from one node to another across some medium’
Link Layer.
What layer in the IP stack best corresponds to the phrase: ‘bits live on the wire’
Physical Layer.
What layer in the IP stack best corresponds to the phrase: ‘handles the delivery of segments from the application layer, may be reliable or unreliable’
Transport Layer.
What layer in the IP stack best corresponds to the phrase: ‘moves datagrams from the source host to the destination host’
Network Layer.
‘handles messages from a variety of network applications’
Application Layer.
Time needed to perform an integrity check, lookup packet information in a local table and move the packet from an input link to an output link in a router
Processing delay
Time spent waiting in packet buffers for link transmission
Queueing delay
Time spent transmitting packets bits into the link
Transmission delay
Protocols that are part of a distributed network application.
Application Layer
Transfer of data between one process and another process (typically on different hosts).
Transport layer
Delivery of datagrams from a source host to a destination host (typically)
Network Layer
Transfer of data between neighboring network devices.
Link layer
Transfer of a bit into and out of a transmission media.
Physical Layer
Which of the definitions below describe what is meant by the term “encapsulation”?
Taking data from the layer above, adding header fields appropriate for this layer, and then placing the data in the payload field of the “packet” for that layer.
Specialized “middleboxes” filtering or blocking traffic, inspecting packet contents inspections
Firewall
