Appendix A

Answers to Review Questions

Chapter 1: Operation of IP Data Networks

1. A. Fiber optic cables are the only ones that have a core surrounded by a material called cladding.
2. A. The device shown is a hub and hubs place all ports in the same broadcast domain and the same collision domain.
3. B. The Secure Shell (SSH) protocol sets up a secure session that’s similar to Telnet over a standard TCP/IP connection and is employed for doing things like logging into systems, running programs on remote systems, and moving files from one system to another.
4. C, F. The switches are not used as either a default gateway or other destination. Switches have nothing to do with routing. It is very important to remember that the destination MAC address ...

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