CCNA – Cisco IOS Questions 3
Here you will find answers to Cisco IOS Questions – Part 3
Note: If you are not sure about the boot sequence of a router/switch, please read my Cisco Router Boot Sequence Tutorial.
Question 1
Refer to the exhibit. A router boots to the prompt shown in the exhibit. What does this signify, and how should the network administrator respond?
| rommon 1> |
A. This prompt signifies that the configuration file was not found in NVRAM. The network administrator should follow the prompts to enter a basic configuration.
B. The prompt signifies that the configuration file was not found in flash memory. The network administrator should use TFTP to transfer a configuration file to the router.
C. The prompt signifies that the IOS image in flash memory is invalid or corrupted. The network administrator should use TFTP to transfer an IOS image to the router.
D. The prompt signifies that the router could not authenticate the user. The network administrator should modify the IOS image and reboot the router.
Answer: C
Explanation
If a Cisco router boots in ROMmon mode, it means:
+ The value of the configuration register is set to XXX0 (the boot field – fourth bit – is 0)
+ The router is unable to locate a valid Cisco IOS software image (you can use the “dir flash:” command in ROMmon mode to look for the IOS in the Flash then try to boot that flash with the “boot flash:” command).
If the IOS image is invalid or corrupted, the fastest way to re-install a new Cisco IOS software image on the router is to copy a new one from TFTP (with “tftpdnld” command).
Question 2
What should be done prior to backing up an IOS image to a TFTP server? (Choose three)
A. Make sure that the server can be reached across the network.
B. Check that authentication for TFTP access to the server is set.
C. Assure that the network server has adequate space for the IOS image.
D. Verify file naming and path requirements.
E. Make sure that the server can store binary files.
F. Adjust the TCP window size to speed up the transfer.
Answer: A C D
Question 3
Which two privileged mode cisco ios commands can be used to determine a cisco router chassis serial number? (choose two)
A. show inventory
B. show flash filesys
C. dir flash:|include chassis
D. show diag
E. show controllers
Answer: A D
Question 4
Which command helps a network administrator to manage memory by displaying flash memory and NVRAM utilization?
A. show secure
B. show file systems
C. show flash
D. show version
Answer: B
Question 5
A network administrator changes the configuration register to 0×2142 and reboots the router. What are two results of making this change? (Choose two)
A. The IOS image will be ignored.
B. The router will prompt to enter initial configuration mode.
C. The router will boot to ROM.
D. Any configuration entries in NVRAM will be ignored.
E. The configuration in flash memory will be booted.
Answer: B D
Explanation
The router bypasses the startup configuration stored in NVRAM during its boot sequence so the router will enter initial configuration mode. This feature is normally used during a password recovery procedure.
Question 6
Refer to the exhibit. For what two reasons has the router loaded its IOS image from the location that is shown? (Choose two)
|
Router1> show version ROM: System Bootstrap, Version 11.1(11855) [beta 2], INTERIM SOFTWARE Router1 uptime is 23 hours, 33 minutes cisco 7206 (NPE150) processor with 57344K/8192K bytes of memory.
Configuration register is 0×2102 |
A. Router1 has specific boot system command that instruct it to load IOS from TFTP server.
B. Router1 is acting as a TFTP server for other routers.
C. Router1 cannot locate a valid IOS image in flash memory.
D. Router1 defaulted to ROMMON mode and loaded the IOS image from a TFTP sewer.
E. Cisco routers will first attempt to load a image from TFTP for management purposes.
Answer: A C
Explanation
When powered on, the router first checks its hardware via Power-On Self Test (POST). Then it checks the configuration register to identify where to load the IOS image from. In the output above we learn that the Configuration register value is 0×2102 so the router will try to boot the system image from Flash memory first.
But we also see a line “System image file is “tftp://112.16.1.129/hampton/nitro/c7200-j-mz”. Please notice that this line tells us the image file that the device last started. In this case it is from a TFTP server. Therefore we can deduce that the router could not load the IOS image from the flash and the IOS image has been loaded from TFTP server.
Note:
If the startup-config file is missing or does not specify a location, it will check the following locations for the IOS image:
+ Flash (the default location)
+ TFTP server
+ ROM (used if no other source is found)
Question 7
Which Cisco IOS command can help to determine the timing of various debug events, relative to each other, when you are debugging a complicated router issue?
A. service timestamps log datetime msec
B. clock calendar-valid
C. show clock detail
D. service timestamps debug datetime msec
Answer: D
Explanation
The service timestamps command is used to configure the system to apply a time stamp to debugging messages or system logging messages. If the service timestamps command is specified with no arguments or keywords, the default is service timestamps debug uptime.
The “service timestamps debug datetime msec” command tells the device to indicate time-stamping for system logging messages in the format of MMM DD HH:MM:SS.mmm (Month, date, hour, minute, second, millisecond corresponding). For example: Sep 1 06:45:26.523.
Note: Answer A “service timestamps log datetime msec” is used for logging messages, not debugging messages.
(Reference: http://www.cisco.com/en/US/docs/ios/fundamentals/command/reference/cf_r1.html#wp1030116)
Q6 :
As you explain the register value is 0×2102 so the router must load IOS from flash and not from TFTP so the answer A is wrong, Am I wrong ?
@Jamalos
0×2101 means to load 1st IOS file in flash.
0×2102 means to check startup config for boot commands, if none load 1st file in flash.
So the 2 answers are correct:-
1. Boot from flash but no IOS found so the router booted from TFTP, answer C.
2. Boot commands in startup file instuct router to boot straight from TFTP, answer A.
Hope that helps.
Would it be possible for there to be an explanation to question 3? A screenshot of the show commands and maybe a description of what a “cisco router chassis” is. I have no clue haha.
Q6:
A. Router1 has specific boot system command that instruct it to load IOS from TFTP server.
How do you execute this command? or where and how do you configure the bootstrap to run IOS from tftp?
@tohritz: Here is an example of configuring the bootstrap to run IOS from tftp:
Router(config)#boot system tftp://10.16.130.182/c2800nm-advipservicesk9-mz.124-15.T8.bin
Next time you reboot your router it will look for IOS in the TFTP first.
Q3: THE ANSWERS DONT SEEM RIGHT since they dont work on a router.
Q Which Cisco IOS diagnostics command can disrupt the operation of a router under high load
conditions?
A. debug all
B. show running-config
C. show processes cpu
D. logging host ip address
correct option A or B
What is correct answer and why ? Can anybody please help me
Q Which Cisco IOS diagnostics command can disrupt the operation of a router under high load
conditions?
A. debug all
B. show running-config
C. show processes cpu
D. logging host ip address
I think Correct option A or C but i am not sure please guys help me
Q Which Cisco IOS diagnostics command can disrupt the operation of a router under high load
conditions?
A. debug all
B. show running-config
C. show processes cpu
D. logging host ip address
The Answer to this question is Option A . As when you run Debug all command there will be additional load to the router which will increase the CPU utilization and in turn will disrupt the functionality.
Option C will not be the correct answer as it is a command which shows the CPU utilization of the router without putting any additional load on it.
Thank you Sreya for your reply.
q.4 i got for today xam
Hi 9tut… Hi Guys! Can you please help me… I will take exam this Feb. Please send me latest dump so that I will have an idea for the exam.. rico.blake@ymail.com
Thanks Guys!
@Ranjitha
did u clear ur exam………………. this time.
Q3)
The commands mentioned in the answer sh inventory and sh diag does’nt work. what is the meaning of chassis serial number. can anyone please help me regarding this………….
@9tut:
I am not agree with the Answer You have given for Q. 3. There is no such commands like show inventory or show diag. only the valid command from the given Answer is Show Controllers. Kindly help us to clear the same.
@arpit
packettracer does not have all the commands available on real devices.
please trust 9tut on this and accept the answer: “show diag” and “show inventory” :)
@arpit
the commands exist
type the commands in GOOGLE you will find out their function
update us guys, when you already take an exam this year..
Q4 is it the right answer ???
I m trying at packet tracer to find this command , doesent exist
same prob as @arpit
Packet tracer is limited in its functions… try the functions(show diag, show inventory) on GNS3 or an actual router and they will work
The command sh diag and sh inventory works..i used it with 1841s as the least while looking at chassis…trust 9tut on this
Oh i hope i pass the ccna…
@9tut: Soory i have mistaken…
@Xallax: Thanks Buddy..!!
which command will show the mac addresses of the station connected to stations connectec to swithc ports?
A. Show Mac-address
B. Show arp
C. Show table
D. Show switch port.
The correct answer in the dumps is option A. Is it because the “show mac-address” is short for the command “show mac-address-table” ? waitinfg for the response from you guys specially 9tut and Xallas.
Show inventory and show diag the commands exist, those Functions commands you can use on the GNS sofware!
@ Majid
answer is B
@9TUT
If configuration register (0×2102,0×2142 etc) is saved in NVRAM,
How ROM (bootstrap program) will locate the IOS file BEFORE loading startup configuration?
hey ,
cn any one send me dumps and nuggets if they have sushantarora1990@gmail.com
regards
sushantarora
For Q3 sh diag command is right, its work on CISCO IOS 12.2 and later…….
http://www.examcollection.com/cisco/Cisco.Acme.640-802.v2012-02-07.by.Arpit.486q.vce.file.html
Most Valid Dump.. All most 99% answers are correct.
@Majid, the correct answer is A
@9tut,
Q6:I guess if we have to choose two answer, the best answer have to be A and C. Through I would question the logic behind it.
For router to boot from something like “tftp://112.16.1.129/hampton/nitro/c7200-j-mz”, it must have configuration such as “boot XXXXXX”, thus A is for sure, but for answer C, we do not know.
for register 0×2102, router will check the start-config for boot command first, in case A is right, that means router will boot according to the configured “boot” commands, it is not necessary have to check flash first, unless we also have multi boot commands point to flash too. that means answer C is really irreverent.
I am not sure I should hate those Cisco guy or love them, they are lazy enough to leave those ridiculous test question for years to confuse us, but other way, if they are not so lazy, we would not have this nice dump would we! :>)
can anyone plz send me the latest dumps i have my exam on March. Thankz in advance
linocome@gmail.com
any one who have the pass4sure latest dump kindly share it or send to this email
salman.stm@gmail.com
My exam is due soon but i am still finding it a little difficult to analyze outputs of ‘show commands’ is there any help here????
@Majid
the correct answer is B,
there is no command like show mac-address, the correct command is sh mac-address-table that will give the same results of sh arp
@Majid, @snipy
I guess it may be a tricky question, cant say option A is correct or not, but just look at output below i posted
output from router: 3560
INE-SW1#show mac?
mac
INE-SW1#show mac ?
access-group MAC access-group
address-table MAC forwarding table
INE-SW1#show mac ad
INE-SW1#show mac address-table ?
address Address to lookup in the table
aging-time MAC address table aging parameters
count Number of MAC addresses in the table
dynamic List dynamic MAC addresses
interface List MAC adresses on a specific interface
learning Display learning on VLAN or interface
————Output Ommitted——————
Now Can anyone tell me does show mac address & show mac address-table has a similar meaning.
can someone send latest dumps exam in aprl buddha_173@hotmail.com
dear majid & snipy & bunty & other guys
the show arp command display mapping between ip address and mac address , so on a switch with default configuration it does not show any thing because switch is a layer 2 device and it does not understand ip address !!!. be sure that the answer is show mac-address . yes i now it is not full command but it is the best answer . guys please notice that the show arp command and the show mac-address-table is not same . the show mac-address-table will show you the MAC Address that learned from an interface and from a particular VLAN and the output is same on both ROUTER and SWITCH . question wanted the mac address of station connected to the switchport . please test it .
but the question is , what is the output of show arp on a switch ? the answer is on a switch with default configuration NOTHING !!! but if you create a vlan interface something like this :
R1(config)# int vlan 1
R1(config-int)# ip add 192.168.0.1 255.255.255.0
R1(config)# no shut
Now the show arp command will show you mapping between switch vlan interface mac address and its ip address !!!. please test it too
guys i had a little problem on configuration above it is a switch not a router i mean it should be something like this :
SW1(config)# int vlan 1
SW1(config-int)# ip add 192.168.0.1 255.255.255.0
SW1(config)# no shut
hi,
can anyone send me the latest dumps? I’ll take my CCNA exam next friday…
thanks,
andrew.letcon@gmail.com
q6 is hard!!! There are two possibilities to load from tftp for this question
need latest dump alamournet@hotmail.com
Please i need the latest dumps, my exam next mounth.
Thanks,
benimiri2012@gmail.com
Please, can you send me the latest dumps, I am having the exam soon. ruseva.e@gmail.com
Thanks
need latest dump please :
hamasaeedhaydar@gmail.com
Could I too have the latest dump, pls. writing icnd2 on Friday… crispy33@hotmail.com
Hi to all,
to everyone that asking for latest dump … what are dumps first ?? :)
Do you really get the dumps trough email? … May be easy having this latest dumps in a download area so anyone will be able to get those? Am I in wrong?
I’m taking an exam on this Saturday May 5th 2012. Could you guys please send me the latest dump to ultimatearmy@gmail.com
Thank you!!
Hi everyone…
Can anyone send me the latest dump for ccna…
Please send to jade13_raguindin@yahoo.com…
Thank you!!!