11. The transport layer handles multiplexing and demultiplexing through what type of device?
- Switches
- Hubs
- Routers
- Ports
12. Which field in the TCP header provides the information for the receiving network device to understand where the actual data payload begins?
- Checksum
- Data offset
- Acknowledgement number
- Sequence number
13. A device involved in a Transmission Control Protocol (TCP) connection is ready to close the connection. The other device in the connection agrees. What has occurred?
- Two-way handshake
- Three-way handshake
- Handshake
- Four-way handshake
14. If a TCP socket is ready and listening for incoming connections, it's in the ______ state.
- CLOSE_WAIT
- ESTABLISHED
- SYN_SENT
- LISTEN
15. A communication sent through Transmission Control Protocol (TCP) arrives out of order. What allows the data to be put back together in the correct order?
- Acknowledgement number
- Sequence numbers
- Checksum
- Preamble
16. In the OSI network model, the ________ is responsible for facilitating the communication between actual applications and the transport layer.
- session layer
- application layer
- physical layer
- presentation layer
17. You are sending a very small amount of information that you need the listening program to respond to immediately. Which Transmission Control Protocol (TCP) flag will be used?
- ACK
- RST
- PSH
- URG
18. What layer of the TCP/IP Five-Layer Network Model allows applications to communicate in a way they understand?
- Data layer
- User layer
- Application layer
- Transport layer
20. A 32-bit number that's used to keep track of where you are in a sequence of TCP segments is known as a(n) ______ number.
- TCP
- address
- sequence
- acknowledgement
Shuffle Q/A 1
21. The concept of taking traffic that’s all aimed at the same node and delivering it to the proper receiving service is known as _________.
- encapsulation
- multiplexing
- routing
- demultiplexing
22. Which field in a Transmission Control Protocol (TCP) header provides the next expected segment?
- Checksum
- Data offset
- Sequence number
- Acknowledgement number
