TCP Transport Layer Quiz

What does HTTP use TCP as the transport layer protocol?

• Because HTTP is a best-effort protocol

• Because transmission errors can be tolerated easily

• To ensure the fastest possible download speed

• Because HTTP requires reliable delivery

Which factor determines TCP window size?

• The amount of data the destination can process at one time

• The amount of data to be transmitted

• The amount of data the source is capable of sending at one time

• The number of services included in the TCP segmented

A PC is downloading a large file from a server. The TCP window is 1000 bytes. The server is sending the file using 100-byte segments. How many segments will the server send before it requires an acknowledgment from the PC?

• 10

• 100

• 1

• 1000

A client requires to transmit a large image file across the network while having multiple sessions with other applications. Which feature will allow different session streams to take place at the same time, without having a single data stream using all available bandwidth?

• Acknowledgements

• Port numbers

• Window size

• Multiplexing

What message field is used by TCP to reassemble and reorder received segments?

• Fragment numbers

• Port numbers

• Sequence numbers

• Acknowledgement numbers

What is the responsibility of transport layer protocols?

• Providing network access

• Transmitting private IP addresses to public IP addresses

• Determining the best path to forward a packet

• Keeping track of individual processes

During a TCP session, a destination device sends an acknowledgement number to the source device. What does the acknowledgement number represent?

• A random value representing that the data is received.

• Total number of packets received since the session establishment.

• The last sequence number that was sent by the source.

• The next byte that the destination expects to receive.

Which transport layer feature is used to guarantee a session established?

• TCP 3-way handshake

• UDP ACK flag

• TCP port number

• UDP sequence number

What important information is added to the TCP/IP transport layer header to ensure communication and connectivity of a specific application and/or service with a remote network device?

• Destination and source logical network addresses

• Destination and source port numbers

• Destination and source physical addresses

• Timing and synchronization

What is a characteristic of a TCP server process?

• A host running two different applications can have both configured to use the same server port

• Every application process running on the server has to be configured to use a dynamic port number.

• An individual server can have two services assigned to the same port number within the same transport layer services.

• There can be many ports open simultaneously on a server, one for each active server application.