Network Reference Models

Question 1

Transmits bitstreams over transmission media and defines electrical and physical specifications.

Answer 1

Physical Layer

Question 2

Encapsulates packets into frames, transmits frames in P2P or P2MP mode, and implements error checking.

Answer 2

Data Link Layer

Question 3

Defines logical addresses and transfers data from sources to destinations.

Answer 3

Network Layer

Question 4

Establishes, maintains, and cancels an end to-end data transmission process; controls transmission speeds and adjusts data sequences.

Answer 4

Transport Layer

Question 5

Establishes, manages, and terminates sessions between communicating parties.

Answer 5

Session Layer

Question 6

Translates data formats to ensure that the application-layer data of one system can be identified by the application layer of another system.

Answer 6

Presentation Layer

Question 7

Provides interfaces for applications.

Answer 7

Application Layer