CN quiz

What are the features of UDP?

• Minimal overhead, no error-checking mechanism, no congestion control

• High overhead, strong error-checking mechanism, congestion control

Explain the structure of a TCP segment.

• The structure of a TCP segment includes a footer and data section.

• A TCP segment consists of a header and footer.

• TCP segments do not contain any data.

• The structure of a TCP segment includes a header and data section.

How does TCP establish a connection between two hosts?

• Handshake protocol

• Two-way handshake

• Four-way handshake

• Three-way handshake

What is flow control in TCP and why is it important?

• Flow control in TCP is important to prevent network congestion, buffer overflow, and packet loss.

• Flow control in TCP is not necessary for reliable data transmission

• Flow control in TCP is only relevant for small data transfers

• Flow control in TCP is used to increase network speed

Describe the concept of congestion control in TCP.

• Congestion control in TCP has no impact on network congestion

• Congestion control in TCP always maximizes data transmission rates

• Congestion control in TCP regulates data transmission rates to prevent network congestion.

• Congestion control in TCP is only relevant for small networks

What is Quality of Service (QoS) in networking?

• QoS in networking refers to the quantity of services provided

• QoS in networking is the ability to provide different priorities to different applications, users, or data flows, ensuring a certain level of performance, reliability, and availability for critical applications or users.

• QoS in networking is the abbreviation for Quick Online Support

• QoS in networking is the process of quantifying outgoing signals

What is the main difference between UDP and TCP?

• UDP is connectionless and does not guarantee delivery, while TCP is connection-oriented and ensures reliable data transmission.

• UDP is connection-oriented and ensures reliable data transmission, while TCP is connectionless and does not guarantee delivery.

• UDP and TCP are both connection-oriented protocols.

• UDP is slower than TCP due to its connectionless nature.

What information is included in the header of a TCP segment?

• Data length, Error detection code, Flow control

• Payload, Encryption key, Compression algorithm

• Source port number, Destination port number, Sequence number, Acknowledgment number, Data offset, Reserved bits, Control flags, Window size, Checksum, Urgent pointer

• Source address, Destination address, TTL, Protocol

How does TCP ensure reliable data delivery?

• No error detection mechanisms

• Randomized packet delivery

• Sequence numbers, acknowledgments, retransmissions, flow control, and congestion control

• Unlimited bandwidth allocation

What is the purpose of the sequence number in TCP?

• To determine the source IP address

• To control the flow of data

• To encrypt the data segments

• To uniquely identify and order data segments