OSI Model and Network Communication

Total Questions: 12

1 - Which OSI layer is responsible for the transmission of raw bits streams over a physical medium?

A ) Physical layer ✅
B ) Network layer
C ) Application layer
D ) Data link layer

2 - What is the layer on which a NIC operates in a computer network?

A ) Transport layer
B ) Data link layer ✅
C ) Application layer
D ) Network player

3 - Which OSI layer is responsible for addressing routing and traffic control?

A ) Network layer ✅
B ) Data link layer
C ) Presentation layer
D ) Session layer

4 - At which layer does rooting occur in the OSI model?

A ) Data link layer
B ) Network layer ✅
C ) Transport layer
D ) Physical layer

5 - Which layer ensures reliable data transmission, segmentation, and flow control?

A ) Transport layer ✅
B ) Physical layer
C ) Network layer
D ) Session layer

6 - What is the main function of the session layer?

A ) Handling data compression
B ) Determining the best route for packets
C ) Error detection and correction
D ) Managing and maintaining communication sessions ✅

7 - Which layer of the OSI model is responsible for encryption and decryption?

A ) Presentation layer ✅
B ) Session layer
C ) Application layer
D ) Transport layer

8 - The HTTP protocol operates at which OSI layer?

A ) Transport layer
B ) Application layer ✅
C ) Session layer
D ) Network layer

9 - Where does network architecture define ?

A ) The speed of the network
B ) The way devices are designed physically
C ) The design and communication structure of a network ✅
D ) The type of cables used in network

10 - What is the protocol data unit (PDU) at the transport layer?

A ) Bit
B ) Segment ✅
C ) Packet
D ) Frame

11 - What is the protocol data unit (PDU) at the data link layer?

A ) Bit
B ) Packet
C ) Segment
D ) Frame ✅

12 - What is the PDU at the network layer?

A ) Frame
B ) Segment
C ) Packet/Datagram ✅
D ) Symbol
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