OSI MODEL Flashcards
OSI DEFINES _____
Open System Interconnection Model defines a networking framework to implement protocols in seven layers.
Layer 1 of OSI Model is ___.
Physical
Physical Layer conveys ___.
Bit Stream
Electrical Impulse
Light or Radio Signal
- is sent through the network at the electric and and mechanical level.
Physical Layer provides ___.
The hardware means of sending and receiving data on a carrier, including defining cables, cards and physical aspects.
Examples of Physical layer components are ___ protocols.
Fast Ethernet
RS232
ATM
Layer 2 of OSI Model is ___.
Data Link
At ___ layer, data packets are encoded and decoded into bits.
- Physical layer
- Data Link layer
- Network layer
- None of the above
Data Link Layer
___ Layer furnishes transmission protocol knowledge and management and handles errors in the ___ layer, flow control and frame synchronization.
Data Link/Data Link
The data link layer is divided into two sub layers ___ & ___.
- Logical Link control (LLC)
- Frame Access Control
- Media Access Control (MAC)
- All the above
Logical Link control (LLC)
Media Access Control (MAC)
The ___ sub layer controls how a computer on the network gains access to the data and permission to transmit it.
- Logical Link control (LLC)
- Frame Access Control
- Media Access Control (MAC)
- None of the above
Media Access Control (MAC)
The frame synchronization, flow control and error checking are controlled in Layer 2 sub layer ___.
- Logical Link control (LLC)
- Frame Access Control
- Media Access Control (MAC)
- None of the above
Logical Link control (LLC)
Layer 3 of OSI Model is ___.
Network
___ layer provides switching and routing technologies, creating logical paths, known as virtual circuits, for transmitting data from node to node.
Network
___ are logical paths for transmitting data from node to node found in Network Layer of the OSI model.
- Switching
- Routing
- Virtual circuits
- None of the above
Virtual circuits
Routing and forwarding are functions of ___ Layer of OSI model.
- Physical layer
- Data Link layer
- Network layer
- None of the above
Network Layer
Routing and forwarding as well as which of the following are functions of ___ Layer of OSI model.
- Network Layer/Addressing
- Network Layer/Internet working
- Network Layer/Error handling
- Network Layer/Congestion Control
- Network Layer/Packet sequencing
- All the above
Network Layer/Addressing Network Layer/Internet working Network Layer/Error handling Network Layer/Congestion Control Network Layer/Packet sequencing