Hands-On Networking Fundamentals Chapter 5 Solutions Answers to the Chapter 5 Review Questions 1. Your network contains a hub that enables you to gather network performance information. This is an example of a(n) __________________. Answer: b. intelligent hub 2. The partition light is displayed on a switch used on your office network and none of the users are currently able to use the network. What should you do first? Answer: c. Push the reset button on the switch. 3. Which of the following are accomplished by the spanning tree algorithm? (Choose all that apply.) Answer: b. Ensure frames are not transmitted in an endless loop. and d. Forward frames along the most efficient route. 4. Your network currently uses four workgroup hubs and five workgroup switches. Now that you have a new budget that includes money for network upgrades, which of the following would be a good approach to help speed up your network? (Choose all that apply.) Answer: a. Replace the hubs with switches. 5. You have purchased a new router. When you implement it on your network, which routing protocol would you use on the router to ensure the most efficient router communications? Answer: d. Open Shortest Path First (OSPF) protocol 6. You are purchasing a cable modem for your home office and the cable company offers you two choices: a DOCSIS 1.0 cable modem or a DOCSIS 1.1 cable modem. The DOCSIS 1.0 modem is offered at half price. Because you handle medical records over the Internet for a physicians’ group, what choice should you make? Answer: b. Purchase the DOCSIS 1.1 cable modem because it is faster and offers data encryption for security. 7. What switching method offers the most thorough error checking? Answer: c. store-and-forward switching 8. Which type of hub amplifies the data-carrying signal on a token ring network? Answer: a. active 9. Your new network assistant has turned off the use of BPDUs on the bridges in an older part of your network as a means to reduce network traffic. What is your response? Answer: a. Turn the use of BPDUs back on, because bridges learn about each other by using this means. 10. You want to set up a device as a firewall between your Internet connection and the workgroup switches on your network. Which device offers the most advantage for this application? Answer: d. a router 11. You have determined that there is network congestion caused by the portion of your organization’s network that is used by research engineers. What device can help you reduce the congestion between the research engineers’ network and the rest of the organization’s network? Answer: d. a router 1 12. Your organization needs to provide WAN connectivity for ISDN and T-3 access as well as modems for remote users. Which of the following devices might you purchase for all three types of services? Answer: c. an access server 13. There is a regular copper telephone line into your home office. Which of the following could be used to provide Internet access over that telephone line? (Choose all that apply.) Answer: a. an analog modem and c. DSL 14. A(n) __________________ operates at the Data Link layer. (Choose all that apply.) Answer: a. bridge and b. Layer 2 switch 15. You are consulting for a European business that has a token ring network. Which of the following cable and devices linking computers can you expect to find on that network? (Choose all that apply.) Answer: a. lobe cables, b. MAUs, c. CAUs, and d. patch cables 16. On a computer with a modem, the transfer speed of the computer is called the __________________. Answer: a. data terminal equipment communications rate 17. A source-route bridge is used on a(n) ______________ network and enables __________________________. Answer: b. token ring, routing 18. The IT director in your company prefers that the routing tables are manually set up by a network administrator. This practice is called _____________________. Answer: d. static routing 19. Your enthusiastic office assistant found some irresistible sales while you were on vacation and purchased a couple of routers, nine switches, five active CAU hubs, and two source-route bridges for your school’s Ethernet network. Which devices will you likely use on your network? (Choose all that apply.) Answer: a. the routers and b. the switches 20. A colleague at a competing business designed a network that seems to have all kinds of communications problems, such as nodes that frequently disconnect and portions of the network with very slow response. Which of the following might your colleague have forgotten when designing the network? Answer: b. to determine which ports on network devices have repeater functions 2