Understanding Network Models and Protocols

Which layer of the OSI model is responsible for establishing, managing, and terminating sessions between applications?

• Network layer

• Session layer

• Presentation layer

• Data Link layer

How many layers are there in the TCP/IP model?

• 3

• 4

• 5

• 7

Which OSI layer is responsible for logical addressing and routing?

• Data Link layer

• Network layer

• Transport layer

• Application layer

In the data encapsulation process, which layer adds the source and destination MAC addresses?

• Physical layer

• Data Link layer

• Network layer

• Transport layer

Which protocol is used for reliable, connection-oriented communication at the transport layer?

• UDP

• TCP

• IP

• ICMP

What is the main function of the Presentation layer in the OSI model?

• Routing packets

• Data encryption and translation

• Error detection

• Flow control

Which of the following is a valid IPv4 address?

• 192.168.1.256

• 172.16.0.1

• 300.1.1.1

• 10.0.0.999

At which OSI layer does the HTTP protocol operate?

• Application layer

• Transport layer

• Network layer

• Data Link layer

Which layer of the TCP/IP model is responsible for end-to-end communication and reliability?

• Application

• Transport

• Internet

• Network Access

What is the correct order of data encapsulation in the OSI model from top to bottom?

• Application, Presentation, Session, Transport, Network, Data Link, Physical

• Physical, Data Link, Network, Transport, Session, Presentation, Application

• Application, Session, Presentation, Transport, Network, Data Link, Physical

• Application, Transport, Network, Data Link, Physical, Session, Presentation