October 23 2009
640-802 Dumps Questions 370 to 372
QUESTION 370
You are a senior network administrator at Certifyme, and while performing the password recovery procedure on
your 2500 series Cisco router, you type in the following command:
o/r 0×2142
What is the purpose of this command?
A. It is used to restart the router.
B. It is used to bypass the configuration in NVRAM.
C. It is used to enter ROM Monitor mode.
D. It is used to view the lost password.
E. It is used to save the changes to the configuration.
Answer: B
Section: CONFIGURE, VERIFY, AND TROUBLESHOOT BASIC ROUTER OPERATION AND ROUTING ON
CISCO DEVICES
Explanation/Reference:
Explanation:
Theo/r 0×2142 command changes the value of config-register to 2142 in a Cisco 2500 series router, so that the
Router ignores the NVRAM contents and reverts to the initial setup configuration mode when it boots.
QUESTION 371
Refer to the exhibit below. A Certifyme technician wants to upload a new IOS in the router while keeping the
existing IOS. What is the maximum size of an IOS file that could be loaded if the original IOS is also kept in
flash?
A. 4 MB
B. 5 MB
C. 8 MB
D. 3 MB
E. 7 MB
F. None of the above
Answer: A
Section: CONFIGURE, VERIFY, AND TROUBLESHOOT BASIC ROUTER OPERATION AND ROUTING ON
CISCO DEVICES
Explanation/Reference:
Explanation:
Based on the output provided, the total amount of flash memory available is 8388608 bytes (8 MB), but the
existing IOS is using up 3803056 bytes (3 MB), so in order to fit both IOS files into the flash the new image
must be no greater than the amount of available memory, which is 4585552 bytes (4 MB).
QUESTION 372
Refer to the diagram. What is the largest configuration file that can be stored on this router?
Exhibit:
A. 31369K bytes
B. 16384K bytes
C. 191K bytes
D. 114688K bytes
E. None of the above
Answer: C
Section: CONFIGURE, VERIFY, AND TROUBLESHOOT BASIC ROUTER OPERATION AND ROUTING ON
CISCO DEVICES
Explanation/Reference:
Explanation:
Non-Volatile Random Access Memory (NVRAM) is used as the storage location for the router’s startup
configuration file. After the router loads its IOS image, the settings found in the startup configuration are
applied. When changes are made to a router’s running configuration, they should always be saved to the
startup configuration (stored in NVRAM) or they will be lost when the router shuts down. Remember that the
running configuration is stored in RAM, which is erased when the router is powered down. On a Cisco 2500
series router, NVRAM is a relatively tiny 32KB in size. In this example, the file size is only 191K, so the config
file must not exceed this.
