Prep Questions

Question 1	Which of the following commands will allow you to review the contents of NVRAM? (Choose the two best answers.) A. show configuration B. show protocols C. show version D. show running-config E. show startup-config
A1:	The correct answers are A and E. The show configuration and show startup-config commands display the router's backup configuration file from NVRAM. The show protocols , show version , and show running-config commands will allow you to review the contents of RAM, not NVRAM. Therefore, answers B, C, and D are incorrect.
Question 2	Which of the following router components contains the router's IOS image? A. Flash memory B. NVRAM C. RAM D. Interfaces
A2:	The correct answer is A. Flash memory contains the IOS images used by the router. If no image resides in Flash memory, the image in ROM will be used. NVRAM and RAM contain the backup configuration and active configuration files, respectively. Therefore, answers B and C are incorrect. Interfaces provide the network connections for the router. Therefore, answer D is incorrect.
Question 3	Which of the following router components contain versions of the router's configuration file? (Choose the two best answers.) A. Flash memory B. NVRAM C. RAM D. ROM
A3:	The correct answers are B and C. NVRAM contains the backup configuration file for the router, whereas RAM contains the router's active configuration file. Flash memory and ROM do not contain a configuration file; they contain the router's IOS image files. Therefore, answers A and D are incorrect.
Question 4	Which of the following commands will allow you to review the contents of RAM? (Choose the three best answers.) A. show configuration B. show protocols C. show version D. show running-config E. show startup-config
A4:	The correct answers are B, C, and D. The show protocols , show version , and show running-config commands allow you to review the contents of RAM. The show configuration and show startup-config commands allow you to review the router's backup configuration file from NVRAM, not RAM. Therefore, answers A and E are incorrect.
Question 5	Which command would be used to restore a configuration file to RAM on a Cisco router? A. router#copy TFTP running-config B. router>copy TFTP running-config C. router#copy TFTP startup-config D. router>copy TFTP startup-config
A5:	The correct answer is A. To restore a configuration file, the file must be copied from a TFTP server to the Cisco router. This is a trick question, because you must be in EXEC privileged mode to perform this function. Answers B and D are incorrect because the question implies that the command is initiated from EXEC mode; you can determine this by the > symbol (as opposed to the # symbol) at the end of the word router in answers B and D. Answer C is incorrect because the startup configuration file is not in RAM, and the question requires that you copy to the running configuration file, which is in RAM.
Question 6	Which of the following commands will display the running configuration file to a console terminal? A. router>show running-config B. router#show startup-config C. router#show flash D. router>show version E. None of the above
A6:	The correct answer is A. The command to display a running configuration file to a console terminal is show running-config. Answer B displays the startup configuration file to the console monitor and is therefore incorrect. Answer C is incorrect because it displays any IOS images or configuration files stored in Flash memory. Answer D displays the software version and hardware on this router and is therefore incorrect.
Question 7	If you need to copy the currently executing configuration file into NVRAM, which command would accomplish this goal? A. router#copy startup-config running-config B. router#copy startup-config TFTP C. router#copy running-config startup-config D. router>copy startup-config running-config
A7:	The correct answer is C. The startup configuration file exists in NVRAM. So, to copy a configuration file to NVRAM, the current startup configuration file must be overwritten. Answer A is incorrect because the startup configuration file is not the currently executing image, and this command is attempting to write the configuration file to RAM. Answer B is incorrect because the startup configuration file is not the currently executing configuration file, and TFTP does not exist in NVRAM. Answer D is incorrect because the startup configuration file is not the currently executing image and because the command is being executed from EXEC mode.
Question 8	Which of the following commands would not set a password on a Cisco router? A. router(config)#enable secret B. router(config-line)#password NFLD C. router(config)#service encryption password D. router(config)#enable password
A8:	The correct answer is C. The service encryption password command is used to encrypt passwords in configuration files. Answer A is incorrect because it is used to set the "enable secret password". Answer B is incorrect because this command is used to set the Telnet, auxiliary, or console password, depending on which line configuration mode the router is in when the command is executed. Answer D is incorrect because it is used to set the "enable password".
Question 9	In which of the following scenarios would a router boot into the initial configuration dialog after its power has been cycled? (Choose the two best answers.) A. When someone copies the startup configuration file to a TFTP server. B. When the running configuration file is copied to the startup configuration file. C. When the router is powered on for the first time. D. When the write erase command is executed immediately before the router is powered down.
A9:	The correct answers are C and D. The initial configuration dialog starts anytime a configuration file cannot be found in NVRAM. This occurs when a write erase command is performed on the startup configuration file or when the router is being powered on for the first time. Answer A is incorrect because copying a startup configuration file to a TFTP server will not cause a router to boot into the initial configuration dialog. Copying the running configuration file to the startup configuration file will not cause the router to boot into the initial configuration dialog. Therefore, answer B is incorrect.
Question 10	Which of the following configuration register values would force a router to boot from ROM? A. 0x2103 B. 0x210F C. 0x2101 D. 0x2104
A10:	The correct answer is C. A configuration register with the value 0x2101 forces a router to boot from ROM. Only when the boot field has a value of 1 or 0 will the router boot from ROM. Answers A, B, and D are incorrect because all these values would cause the router to look at the boot commands in the configuration file to determine what IOS to load.
Question 11	Where does the running configuration file exist in a Cisco router? A. NVRAM B. ROM C. RAM D. Flash memory
A11:	The correct answer is C. The running configuration file exists in RAM. This file is erased when a router is reloaded or its power is cycled. Answer B cannot be correct because ROM is a read-only device, and configuration files are constantly being updated. Answer A is incorrect because NVRAM is used to maintain the startup configuration file, not the running configuration file. Answer D is incorrect because Flash memory stores a copy of the IOS software, not the running configuration files.
Question 12	Which is the correct command to back up Cisco IOS software? A. router#copy running-config startup-config B. router(config)#copy TFTP flash C. router#copy flash TFTP D. router#copy flash NVRAM
A12:	The correct answer is C. To back up Cisco IOS software, you must copy it to a TFTP server or another storage device. Answer A is incorrect because this command deals with configuration files, not Cisco IOS software. Answer B is incorrect because this command would be used to restore the Cisco IOS to a router. Answer D is incorrect because copy flash NVRAM is not a valid command.
Question 13	Which of the following is not a valid Cisco command? A. router>show version B. router#show running-config C. router#show startup-config D. router#show RAM
A13:	The correct answer is D. show RAM is not a Cisco IOS command. Answers A, B, and C are incorrect because they are Cisco commands.
Question 14	Which of the following can be used to permit or deny traffic with IP standard access lists? (Choose the two best answers.) A. Source IP address B. A range of source IP addresses C. Destination IP address D. A range of destination IP addresses
A14:	The correct answers are A and B. IP standard access lists allow IP traffic to be filtered based on source IP addresses; they also allow both individual IP addresses and a range of IP addresses to be specified. Answers C and D are incorrect because IP standard access lists do not filter traffic based on individual IP addresses or a range of destination IP addresses.
Question 15	Which of the following commands will apply an IP extended access list to an interface? A. ip access- group 204 in B. ip access group 110 C. ip access-group 115 out D. ip access-group 95 out E. ipx access-group 805 in
A15:	The correct answer is C. The command in answer C identifies an IP extended access list by the correct numeric range (100 through 199) for IP extended access lists. Answer A is incorrect because it uses the access list number 204, which is reserved for protocol type access lists. Answer B is incorrect because the command is not in the correct format; it should be ip access-group , not ip access group . In addition, the command should specify whether the access group is being applied to inbound or outbound packets with the "in" or "out" identifier. Answer D is incorrect because it identifies an IP standard access list (access list number 95), not an IP extended access list. Answer E is incorrect because it identifies an IPX standard access list, not an IP extended access list.
Question 16	What is the valid range for an IP extended access list? A. 1 through 99 B. 100 through 199 C. 800 through 899 D. 900 through 999
A16:	The correct answer is B. IP extended access lists are identified by the numeric range of 100 through 199. Answer A is incorrect because the numeric range of 0 through 99 identifies IP standard access lists. Answer C is incorrect because the numeric range of 800 through 899 identifies IPX standard access lists. Answer D is incorrect because the numeric range of 900 through 999 identifies IPX extended access lists.