Chapter 1 1. Which of the following statements accurately describe differences between a LAN and a WAN? b. companies can use a Wan to connect remote locations, and a LAN can make a local connection in a building. d. Only WANs require a CSU/DSU to be used on the ends of the cable 2. Network professionals belong to organizations that plan and define standards used in networking. Which of the following are recognized industry organizations? a. IETF c. ISO d. EIA f. ITU 3. Which of the following are true about router? a. outers enable different IP networks or IP subnets to communicate with each other. c. path selection is one of the main functions of a router. e. routers have a central processing unit and memory. 4. Which of the following are main components of a router? a. ROM b. Flash memory e. RAM 5. Which of the following statements describe the function of RAM in a router? c. RAM stores the current configuration information. e. RAM stores routing tables for the router. 6. Which of the following statements are true about DTE? c.
DTE usually resides on the customer's premises. d. DTE is an acronym for data terminal equipment. 7. Which of the following statements are true about DCE? b. DCE provides clocking to the DTE. c. DCE is an acronym for data circuit-terminating equipment. 8. The term WAN refers to which layers of the OSI model? b. Data link d. Physical 9. Which of the following physical ports and/or cables on a router require clocking to be configured in a back-to-back connection? e. Serial port with DCE cable. 10. Which of the following statements are true about interfaces? . Ethernet interfaces usually use RJ-45 connectors. d. Interfaces can accept smart serial connectors. 11. What are possible functions of a console port? b. Accessing the router to change configurations. d. Password recovery 12. In the following figure, which setting is different from the default for connecting to a Cisco router? a. Bits per second. The Cisco default is 9600bps 13. Which of the following are data-link encapsulations for WAN? a. Frame relay c. IETF 14. Which of the following are used in WAN's? b. Router c. Modem 15.
Which of the following describe the function of flash memory in a router? a. Holds the Cisco IOS software image c. Keeps its contents when a router is rebooted. d. Can store multiple versions of Cisco IOS software. 16. Which of the following are true about out-of-band router management? a. Can be performed using the console port with a rollover cable. d. Can allow troubleshooting when a link is down. e. Can be performed using a dialup connection. 17. Which of the following are true about the items shown in the following figure? a. Item B contains serial interfaces. . Items C and D can be used for router management. d. Item B can accept either DTE or DCE cables. 18. Which statement is true about a router? b. NVRAM stores the startup configuration file, and RAM stores the running configuration. CHALLENGE Q&A 1. Which type of cable is used in the connections marked in the following figure? a. PC1 to R1: crossover b. R1 to R2: back-to-back serial connection or DTE/DCE c. R2 to SW2: straight-through cable d. R2 to PC2: console or rollover cable 2. Router R1 has been used in a lab for the last several years.
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R1 connects to router R2 using a back-to-back serial connection, using its serial interface that does not have a built-in CSU/DSU. R1 also has a single Ethernet interface connected to a single PC without using a hub or switch. To save money, the IT manager has decided to use R1 for a new site being installed into the network, as shown in the bottom half of the following figure. Which of the following answers is true regarding other opportunities to save money with this new installation? a. R1 can use the serial cable that was formerly attached to R2, but not the serial cable that was formerly attached to R1.
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