m2_19_2ndSem_quiz1

What is the primary purpose of data communication?

• To enhance data security.
• To store data permanently.
• To analyze data trends.
• To transfer data between devices or systems.

In data communication, which type of transmission only allows data to flow in one direction?

• Duplex
• Broadcast
• Simplex
• Half-duplex

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

• Simplex
• Full-duplex
• Broadcast
• Half-duplex

What does ‘latency’ refer to in data communication?

• Latency refers to the time delay in data communication.
• Latency is the total bandwidth available.
• Latency measures the speed of data transfer.
• Latency is the amount of data transmitted.

Which type of transmission sends bits one after another over a single channel?

• Parallel transmission
• Broadcast transmission
• Multicast transmission
• Serial transmission

What is ‘encoding’ in data communication?

• Encoding is the process of converting data into a specific format for transmission.
• Encoding is the technique of storing data in a database.
• Encoding refers to the method of encrypting data for security.
• Encoding is the process of compressing data to save space.

What is the purpose of protocols in data communication?

• To increase the speed of data transfer
• To encrypt data for security purposes
• To provide a backup for data storage
• The purpose of protocols in data communication is to establish rules for data exchange to ensure accurate and efficient communication between devices.

Which protocol is commonly used for sending emails?

• HTTP
• FTP
• IMAP
• SMTP

Which protocol is primarily responsible for transferring files between devices?

• FTP
• HTTP
• SMTP
• IMAP

What is bandwidth?

• The delay in data transmission

• The amount of data that can be transmitted per second

• The type of data being transmitted

• The number of devices on a network