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 CCNA interview questions  CCNA Interview Questions
 CCDA interview questions  CCDA Interview Questions
Question
what is the boot seqance of cisco router
 Question Submitted By :: Jitendera Kumar Sinha
I also faced this Question!!     Rank Answer Posted By  
 
  Re: what is the boot seqance of cisco router
Answer
# 1
Default boot sequence for Cisco IOS software:

1. NVRAM
2. Flash (Sequentail)
3. TFTP (Network Boot)
4. ROM (partial IOS)


Cisco routers can boot Cisco IOS software from these locations:

1. Flash memory
2. TFTP server
3. ROM (not full Cisco IOS)
 
Is This Answer Correct ?    4 Yes 0 No
Shahin
 
  Re: what is the boot seqance of cisco router
Answer
# 2
actauly in there are 4 option and each option conatin 3 
sequance
i mark
nvram-------flash-----post rom

am i write?
please give feedback
 
Is This Answer Correct ?    2 Yes 1 No
Jitendera Kumar Sinha
 
 
 
  Re: what is the boot seqance of cisco router
Answer
# 3
Hi Jitendera, 

When the router boots, it looks for the boot command stored
in NVRAM which is By default "boot system flash" means boot
from flash

then the router loads the IOS from flash.

If it is unable to load IOS from Flash, then it goes for
TFTP server then ROM etc


So during boot, Router goes to - 

NVRAM > Flash > TFTP > ROM. 



I think i made it clear.
 
Is This Answer Correct ?    1 Yes 0 No
Shahin
 
  Re: what is the boot seqance of cisco router
Answer
# 4
bhaio NVRAM me jane se pehle POST(Power on Self test) bhi
hota h(generally ye specify nahi karte);just for knowledge m
sharing this,so the complete sequence will be :

POST > NVRAM > Flash > TFTP > ROM.
 
Is This Answer Correct ?    0 Yes 0 No
Nikhil Maggu
 
  Re: what is the boot seqance of cisco router
Answer
# 5
Boot Process
 

ROM - bootstrap

- the system bootstrap routine starts from ROM and tells the
router to run the POST and then look for an IOS in Flash memory

- router runs the POST (Power-On Self Test)
FLASH           ( IOS--->DRAM)

- looks for a compressed IOS image in Flash Memory

·        if an IOS is found, it is decompressed and loaded
into DRAM

·        if no IOS is found the bootstrap routine can either
load an image from a TFTP server or from the included CD
that come with the router
NVRAM         (Config--->DRAM)

- the router looks to NVRAM for a startup config

·        if a startup config is found in NVRAM it is loaded
into DRAM

·        if there is no startup config in NVRAM, then the
router goes into *setup mode

DRAM           (ARP cache and routing tables)

- the DRAM is now loaded with the IOS and config, and the
router sends out ARP’s and Routing protocol broadcasts to
build it’s ARP cache and routing tables and store them in
DRAM.  This is now the operating memory of the router.  All
other types of memory are fairly dormant from this point on.

 

* setup mode is an interactive, step-by-step process with
only very basic global commands.  You can enter setup mode
at any time from priviledged mode by typing “setup”.  There
are two versions:  Basic Management and Extended Setup
 
Is This Answer Correct ?    1 Yes 0 No
Deepak
 

 
 
 
Other CCNA Interview Questions
 
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What is convergence time? A.) The update time B.) The time it takes to reload a router C.) The time it takes for a packet to reach its destination D.) The time is takes for all routers update their tables after a change takes place  1
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Given the following output, how can we close Telnet session 2? (Choose two) CCNA2620#show sessions Conn Host Address Idle Conn Name 1 131.108.100.152 131.108.100.152 0 131.108.100.152 *2 126.102.57.63 126.102.57.63 0 126.102.57.63 ❍ A. Press the Enter key and enter exit. ❍ B. Enter disconnect 2. ❍ C. Press the Enter key and enter disconnect 2. ❍ D. Enter close 2.  1
Which OSI layer incorporates the MAC address and the LLC? A.) Data link B.) Network C.) Physcial D.) Transport  3
'Show cdp neighbors detail' show the following 3 pieces of information? A.) Hardware platform B.) Software version C.) Same as 'show version' command D.) Up to 1 address for each protocol E.) Non-direct connected routers  1
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Define Poison Reverse? A.) To prevent regular update messages from reinstating a route that has gone down B.) Packets sent out that are not destined for a network go to the default network C.) Information received on an interface cannot be sent back out the same interface D.) When a network goes down, that network is advertised with an infinite metric  1
What 2 commands verify end to end communications? A.) Trace B.) debug ip session C.) Ping D.) Route  2
Identify the 2 commands that save the running-config to a TFTP server? A.) write running tftp B.) copy running network C.) copy running tftp D.) write network  1
What is true about Link-State protocols? A.) They maintain a more complex table than distant vector protocols B.) They maintain a less complex table than distant vector protocols C.) They use routing ports D.) The maintain backup copies of the IOS  1
Which of the following are valid WAN terms? A.) DTE B.) DCE C.) Demarc D.) CPE  2
Which protocol carries messages such as destination Unreachable, Time Exceeded, Parameter Problem, Source Quench, Redirect, Echo, Echo Reply, Timestamp, Information Request, Information Reply, Address Request, and Address Reply? A. ICMP B. UDP C. TCP D. TFTP E. FTP  2
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Identify the following components of the IPX address 2e.0000.0065.ed43 A.) Not a valid IPX address B.) Network = 2e, Subnet = 0000, Node = 0065.ed43 C.) Network = 2e.0000, Node = 0065.ed43 D.) Network = 2e, Node = 0000.0065.ed43  1
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Eight stations connected to separate 10 Mobs pods on a Layer 2 switch will give each station how many Mobs of bandwidth? A. 1.25 B. 4 C. 16 D. 10 E. 80  1
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