ch2.2 Flashcards
intro net
In the OSI model, which of the following functions are performed at the Application layer? (Select two.)
answer
Communication setup, maintenance, and teardown.
Standard setting for sending and receiving signals.
Device control for data transmission rates.
Integration of network functionality into the host operating system.
Enabling of communication between network clients and services.
C/D
Which of the following are included as part of the Data Link layer specifications? (Select two.)
answer
Data transmission between hosts
Digital data conversion
Physical topology
Physical network device identification
Cable and connector specifications
A/B
In the OSI model, what is the primary function of the Network layer?
answer
Ensure that packets are delivered with no loss or duplication.
Transmit data frames.
Route messages between networks.
Enable communication between network clients and services.
C
What is the basic purpose of the OSI Physical layer?
answer
Maintain a list of known networks and neighboring routers.
Coordinate rules for sending and receiving electrical signals.
Define when devices have access to the LAN.
Define how physical network devices are identified on a network.
B
In the OSI model, which of the following functions are performed at the Presentation layer? (Select two.)
answer
Data format specifications
End-to-end flow control
Data frame transmission
Network services
Data encryption and compression
A/E
Which of the following tasks is associated with the Session layer?
answer
IP address assignment
Data block breakdown
Port number assignment
Connection establishment
D
Which of the following functions are performed by the OSI Transport layer? (Select three.)
answer
Packet formatting for delivery through the medium
Path identification and selection
End-to-end flow control
Media access control, logical topology, and device identification
Data segmentation and reassembly
Reliable message delivery
Consistent data formatting between dissimilar systems
A/C/E
