Data Communication and Computer Network - CSE-Class Test1

What is the full form of OSI?

• Open System Information

• Operating System Information

• Operating System Interface

• Open System Interconnection

Which layer of the OSI model is responsible for error detection and correction?

• Physical Layer

• Transport Layer

• Data Link Layer

• Network Layer

What is the purpose of the Transport layer in the OSI model?

• To control the flow of data

• To provide data encryption

• To establish connections between devices

• To ensure reliable delivery of data

Which data transmission mode allows communication in both directions, but only one at a time?

• Simplex

• Multiplex

• Duplex

• Half-duplex

Which of the following is an example of a data link layer protocol?

• IP

• HTTP

• Ethernet

• TCP

What is the maximum data transmission rate of a Gigabit Ethernet connection?

• 1 Gbps

• 100 Mbps

• 100 Gbps

• 10 Gbps

Which network topology connects all devices to a central hub?

• Mesh

• Star

• Ring

• Bus

Which of the following is a characteristic of a Wide Area Network (WAN)?

• Managed by a single organization

• Small geographical area

• Long distance communication

• High bandwidth

What is the purpose of the Network layer in the OSI model?

• To control the flow of data

• To ensure reliable delivery of data

• To provide data encryption

• To establish connections between devices

Which of the following is an example of a Local Area Network (LAN)?

• Ethernet

• WAN

• Internet

• Bluetooth