14.2.5 Check Your Understanding – TCP Overview

In this section titled 14.2.5 Check Your Understanding – TCP Overview, learners get the chance to review core TCP concepts such as reliable data transfer, flow control, and segmentation. This quick check ensures a solid grasp of how TCP operates within the transport layer of networking.

1. Which protocol at the transport stratum guarantees sequenced, dependable data transit?

• ICMP
• IP
• TCP
• UDP

Clarification: Among these, TCP (Transmission Control Protocol) is the only conduit that pledges data to arrive in a sequenced and fail-safe fashion.

2. Select the accurate portrayal of the TCP header’s anatomy.

• It comprises 4 segments within an 8-byte shell.
• It carries 8 segments within a 10-byte encapsulation.
• It enfolds 10 segments within a 20-byte envelope.
• It contains 20 segments compacted into a 40-byte casing.

Clarification: The legitimate structure of the TCP header is an ensemble of 10 distinct fields, arranged meticulously within a 20-byte header framework.

3. Identify the pair of applications that inherently depend on TCP’s structured transmission method. (Choose two)

• FTP
• HTTP
• ICMP
• TFTP
• VoIP

Clarification: Applications like FTP (File Transfer Protocol) and HTTP (Hypertext Transfer Protocol) are intrinsically tethered to TCP, as their function demands meticulously ordered and reliable communication sequences.