Practice Questions Candidate: tommy thompson (tsquared66) Date: 5/7/2022 11:33:38 pm - Time spent: 18:18
Score: 100%
Passing Score: 80%
v Question 1:
Correct
In the OSI model, which of the following functions are performed at the Application layer? (Select two.)
Integration of network functionality into the host operating system.
Enabling of communication between network clients and services.
Standard setting for sending and receiving signals.
Device control for data transmission rates.
Communication setup, maintenance, and teardown.
EXPLANATION
The Application layer enables network services and integrates network functionality into the host operating system. Applications actually run above the OSi Application layer.
The setup, maintenance, and teardown of communication happens at the Session layer.
The Data Link layer controls the rate of data transmission between hosts (flow control).
The Physical layer sets standards for sending and receiving electrical signals between devices.
REFERENCES ] 2.2.1 The OSI Model 2.2.2 OSI Model Facts ] 2.2.3 OSI Model Layers
[] 2.2.4 OSI Model Communications 2.2.5 OSI Layers Facts
q_osi_application_np6.question.fex
v Question 2:
Correct
Which of the following are included as part of the Data Link layer specifications? (Select two.)
Cable and connector specifications
Physical network device identification
Digital data conversion
Data transmission between hosts
Physical topology
EXPLANATION
The Data Link layer controls device identification on networks, as well as how messages travel through the network (the logical topology).
The other functions listed here are performed by the Physical layer.
REFERENCES ] 2.2.1 The OSI Model 2.2.2 OSI Model Facts
[] 2.2.3 OSI Model Layers ] 2.2.4 OSI Model Communications 2.2.5 OSI Layers Facts
q_osi_datalink_02_np6.question.fex
v Question 3:
Correct
In the OSI model, what is the primary function of the Network layer?
Ensure that packets are delivered with no loss or duplication.
Transmit data frames.
Enable communication between network clients and services.
Route messages between networks.
EXPLANATION
The Network layer is responsible for routing messages between networks.
The Transport layer provides a transition between the upper and lower layers of the OSI model. The Data Link layer defines how to verify that data received from the Physical layer is error free (using parity and cyclic redundancy check [CRC]).
REFERENCES ] 2.2.1 The OSI Model
] 2.2.2 OSI Model Facts [] 2.2.3 OSI Model Layers ] 2.2.4 OSI Model Communications 2.2.5 OSI Layers Facts
q_osi_network_np6.question.fe