Computer Networks Quiz

What type of network topology connects each device to a central hub?

• Mesh

• Star

• Bus

• Ring

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

• Uses satellite links

• High error rate

• High data rate

• Covers large geographical areas

What is the main disadvantage of a Mesh Topology?

• Slow data transmission

• Difficult fault diagnosis

• Low reliability

• High installation cost

In which type of data flow can both devices transmit and receive simultaneously?

• Half-duplex

• Simplex

• Full-duplex

• Unidirectional

What is the purpose of a protocol in data communications?

• To encrypt data

• To govern data exchange rules

• To increase data speed

• To store data

What is a key feature of a Wide Area Network (WAN)?

• Has a high error rate

• Uses only fiber optics

• Covers a large geographical area

• Connects devices in a single building

Which topology is characterized by a single cable connecting all devices?

• Mesh

• Star

• Ring

• Bus

What is the main advantage of a Star Topology?

• High data transmission speed

• Direct device communication

• Easy fault isolation

• Low installation cost

What does the term 'real-time transmission' refer to?

• Data sent in batches

• Data sent with delays

• Data sent only during business hours

• Data sent as produced without delay

Which of the following is a disadvantage of a Ring Topology?

• High installation cost

• High data collision

• Single point of failure

• Difficult to expand