Answers to Assessment Test

1. A. The star topology is the easiest to modify. A physical star topology branches each network device off a central device called a hub or a switch, making it easy to add a new workstation. See Chapter 6 for more information.
2. D. A key role of the Transport layer is to provide error checking. The Transport layer also provides functions such as reliable end-to-end communications, segmentation and reassembly of larger messages, and combination of smaller messages into a single larger message. See Chapter 6 for more information.
3. C. 10Base2 is also known as thinnet, and it uses coaxial cable. The correct cable standard is RG-58AU. RG-6 is for cable television and satellite modems, and RG-8 is for thicknet, or 10Base5. ...

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