14 Questions
What is the function of the data link layer in the OSI model?
Prepare data for transmission and control how the data accesses the physical media
What is the primary responsibility of the physical layer in a data network?
Encoding the binary digits that represent data into signals for transmission
Which types of connections are mentioned in the text?
Wired and wireless connections
What do Network Interface Cards (NICs) do?
Connect a device to the network
In the TCP/IP model, which two layers are closely tied according to the text?
Data link layer and physical layer
What do switch devices and wireless access points have in common according to the text?
They are often two separate dedicated devices within a network implementation
Which type of NIC would a network printer most likely have?
Ethernet NIC
What happens at the Physical Layer of the OSI model?
It encodes a complete frame from the data link layer and transmits it.
How are digital signals represented?
Discrete in nature, representing sequence of voltage pulses.
What is one reason for signal deterioration as it travels through the medium?
Attenuation
When data is sent over physical medium, what does it need to be converted into?
Electromagnetic signals
What layer segments user data and places it into packets?
Transport Layer
Which layer encodes frames and creates the electrical, optical, or radio wave signals that represent the bits in each frame?
Physical Layer
What happens to signals as they travel through the media?
They deteriorate due to attenuation, dispersion, and delay distortions.
Test your knowledge on the physical layer and data link layer, which are closely tied in the OSI model. Understand the functions and interactions of these layers for data transmission in a network.
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