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During startup, the router displays the following error message: boot: cannot open "flash:" What will the router do next()。A.Because of damaged flash memory, the router will fail the POST.B.It will attempt to locate the IOS from a TFTP server. If this fai
题目
A.Because of damaged flash memory, the router will fail the POST.
B.It will attempt to locate the IOS from a TFTP server. If this fails, it will initiate the setup dialog.
C.It will attempt to locate the IOS from a TFTP server. If this fails, it will load a limited IOS from ROM.
D.It will attempt to locate the configuration file from a TFTP server. If this fails, it will initiate the setup dialog.
E.It will attempt to locate the configuration file from a TFTP server. If this fails, it will load a limited configuration from ROM.
相似问题和答案
第1题：
A. It performs a label pop operation and an IP lookup.
B. It performs a label swap operation and an IP lookup.
C. It sends an error message toward the egress router.
D. It sends an error message toward the ingress router.
第2题：
During the boot sequence, a Ezonexam 2800 series router needs to locate and load an operating system. What is the default order the router uses to find an operating system?
A．ROM, TFTP server, Flash
B．Flash, TFTP server, ROM
C．Flash, NVRAM, TFTP server
D．Flash, ROM, TFTP server
E．Flash, TFTP server, RAM
解析：Explanation:BootinguptheRouter:CiscorouterscanbootCiscoIOSsoftwarefromtheselocations:1.Flashmemory2.TFTPserver3.ROM(notfullCiscoIOS)Multiplesourceoptionsprovideflexibilityandfallbackalternatives.
第3题：
After working all night and successfully configuring a Cisco router for the Ezonexam network you save your changes on the startup config, reboot the router, and go out for a cigarette. When you return, none of your changes are active and the router boots to the initial configuration mode! Which of the choices below indicates the source of your problem?
A．Hardware failure in NVRAM prevents the router from loading the config
B．Startup-config in flash is corrupt and cannot be analyzed
C．Router configuration-register set to bypass startup configuration
D．Startup-config in NVRAM is corrupt and cannot be analyzed
E．None of the above
解析：Explanation:
The default configuration-register setting of 0x2102 loads the IOS from flash and the configuration from NVRAM.
However, for password recovery, you can set the register to 0x2142 and the startup-config file in NVRAM will be bypassed. The problem described here is that the config register was not changed back to 0x2102 before the router was rebooted, so the active configuration is bypassed. Simply setting the config register back to 0x2102 will fix this problem.
Incorrect Answers:
A, B, D. All of these describe hardware or software errors. In the event that this is the problem, errors will be generated and the router will fail to boot properly. In these cases, the router will not return to the initial startup configuration.
第4题：
During startup, the router displays the following error message: boot: cannot open "flash:" What will the router do next?（）
- A、Because of damaged flash memory， the router will fail the POST
- B、It will attempt to locate the IOS from a TFTP server. If this fails， it will initiate the setup dialog.
- C、It will attempt to locate the IOS from a TFTP server. If this fails， it will load a limited IOS from ROM
- D、It will attempt to locate the configuration file from a TFTP server. If this fails， it will initiate the setup dialog.
- E、It will attempt to locate the configuration file from a TFTP server. If this fails， it will load a limited configuration from ROM
正确答案:C
第5题：
A.informational
B.emergency
C.warning
D.critical
E.debug
F.error
第6题：
A.config
B.clientqos.cnf
C.startup-config
D.running-configuration
第7题：
A. Flash,TFTP server,ROM
B. Flash,NVRAM,ROM
C. ROM,NVRAM,TFTP server
D. NVRAM,TFTP server,ROM
E. TFTP server,Flash,NVRAM
第8题：
During startup, router VE1 displays the following error message:
boot: cannot open "flash:"
What will VE1 do next?
A. It will attempt to locate the configuration file from a TFTP server. If this fails, it will initiate the setup dialog.
B. It will attempt to locate the IOS from a TFTP server. If this fails, it will load a limited IOS from ROM.
C. It will attempt to locate the configuration file from a TFTP server. If this fails, it will load a limited configuration from ROM.
D. Because of damaged flash memory, the router will fail the POST.
E. It will attempt to locate the IOS from a TFTP server. If this fails, it will initiate the setup dialog.
F. None of the above
B 解析：Explanation:
The boot sequence of a Cisco router is shown below:
Booting up the router and locating the Cisco IOS
1. POST (power on self test)
2. Bootstrap code executed
3. Check Configuration Register value (NVRAM) which can be modified using the config-register command
0 = ROM Monitor mode
1 = ROM IOS
2 - 15 = startup-config in NVRAM
4. Startup-config file: Check for boot system commands (NVRAM)
If boot system commands in startup-config
a. Run boot system commands in order they appear in startup-config to locate the IOS
b. [If boot system commands fail, use default fallback sequence to locate the IOS (Flash, TFTP, ROM)?]
If no boot system commands in startup-config use the default fallback sequence in locating the IOS:
a. Flash (sequential)
b. TFTP server (netboot)
c. ROM (partial IOS) or keep retrying TFTP depending upon router model
5. If IOS is loaded, but there is no startup-config file, the router will use the default fallback sequence for locating the IOS and then it will enter setup mode or the setup dialogue.
6. If no IOS can be loaded, the router will get the partial IOS version from ROM
第9题：
A.Flash，TFTPserver，ROM
B.Flash，NVRAM，ROM
C.ROM，NVRAM，TFTPserver
D.NVRAM，TFTPserver，ROM
E.TFTPserver，Flash，NVRAM
第10题：
A network administrator enters the following command on a router: logging trap 3. What are three message types that will be sent to the Syslog server? （）
- A、informational
- B、emergency
- C、warning
- D、critical
- E、debug
- F、error
正确答案:B,D,F