Quiz 2 Network Topology and OSI Model

Which of the following best defines data communication?

• Process of storing data in a computer

• Process of transmitting data between two or more devices

• Process of securing data inside a device

• Process of converting data into binary form

For effective data communication, which of the following is not essential components?

• Sender

• Receiver

• Message

• Antivirus

A network that covers a large geographical area such as a country or continent is called:

• LAN

• MAN

• WAN

• PAN

In which topology does every device have a dedicated point-to-point link to every

• Star

• Bus

• Ring

• Mesh

Which OSI layer is responsible for logical addressing and routing?

• Data Link Layer

• Network Layer

• Transportation Layer

• Session Layer

Encryption and decryption of data are done at which OSI layer?

• Session layer

• Presentation layer

• Application layer

• Transport layer

In encapsulation, data is passed from upper to lower layers. Each layer:

• Removes its own header

• Adds its own header

• Compresses the message

• Encrypts the message only

The process of removing headers added by each OSI layer during transmission is called:

• Multiplexing

• Modulation

• Decapsulation

• Encoding

Which of the following devices operates at the Data Link layer of OSI?

• Switch

• Router

• Hub

• Gateway

In the OSI model, the process of splitting data into smaller segments (segmentation) are handled by:

• Network Layer

• Session Layer

• Transport Layer

• Data Link Layer