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94 Cards in this Set

  • Front
  • Back
What are the 4 steps in the Router's boot process?
1. Test Hardware (POST)
2. Load bootstrap program
3. Locate and load Cisco IOS
4. Locate and Load the router configuration file
What does POST stand for?
Power On Self Test
Where is POST stored?
ROM
What is the purpose of POST?
Its a Diagnostic Test used to Check Hardware Operations.
What does "rommon>" stand for?
ROM Monitor
What is loaded in the router configuration file?
startup-config
What are the 2 ways to revert back to the startup-config?
- Reboot the router manually
- Restart the router with the "reload" command.
What is the purpose of having a TFTP server when working with routers? (2)
- Transfer IOS Image
- Transfer Router Configurations
What does TFTP stand for?
Trivial File Transfer Protocol
What does the fallowing Command do?

copy run tftp
copy running configurations to in RAM to TFTP server
What does the fallowing Command do?

copy start tftp
Copy startup configuration in NVRAM to TFTP Server
What does the fallowing Command do?

copy tftp run
copy a configuration from tftp server into the running configuration of the router
What does the fallowing Command do?

copy tftp start
copy a configuration from tftp server into the startup configuration of the router
What does the fallowing Command do?

copy run start
copy the running config to the startup config
What does the fallowing Command do?

copy start run
copy the startup config to the running config
What does the fallowing Command do?

copy flash tftp
copy the IOS from router to a TFTP server
What does the fallowing Command do?

copy tftp flash
copy an IOS image from the tftp server into the routers flash
What does the fallowing Command do?

config t
configure the router
What does the fallowing Command do?

config memory
pull config info from nvram
What does the fallowing Command do?

config network
load working config from tftp server
What does the fallowing Command do?

config overwrite-network
overwrite nvram, startup, with info from tftp server
What does the fallowing Command do?

erase start
erase the startup config
what does DCE stand for?
Data communcation equipment
what serial connection needs to be configured with the clockrate?
DCE
what does the "no shutdown" command do?
enable the interface
what are the 5 ways to test a connection?
-Telnet
-Ping
-Trace
-Show ip route
-Show interfaces
What layer of the OSI model does the fallowing command reside at?
Telnet
Application layer
What layer of the OSI model does the fallowing command reside at?
Ping
Network Layer
What layer of the OSI model does the fallowing command reside at?
Trace
Network Layer
What layer of the OSI model does the fallowing command reside at?
show ip route
Network Layer
What layer of the OSI model does the fallowing command reside at?
show interfaces
Datalink & Physical Layer
What layer of the TCP/ IP model does the fallowing command reside at?
Telnet
Application Layer
What layer of the TCP/ IP model does the fallowing command reside at?
Ping
Internetwork Layer
What layer of the TCP/ IP model does the fallowing command reside at?
Trace
Internetwork Layer
What layer of the TCP/ IP model does the fallowing command reside at?
show ip route
Internetwork Layer
What layer of the TCP/ IP model does the fallowing command reside at?
show interfaces
Network Interface Layer
What is Telnet? (2)
- A utility that connects at the highest layer of the OSI model
- Provides remote access to devices
How does Telnet access a router?
via Virtual Terminal Ports (VTY)
What is the purpose of the "IP Hostname" function?
Replace the IP address making it better to remember
what is the command for setting an IP Hostname?
router(config)#ip host router69 192.168.5.1
What is the command to view the "name table" on a router?
router#show hosts
What is the command to disable a pre-set hostname?
router(config)#no ip host router69 192.168.5.1
What is the command to give a server a hostname on router?
router(config)#ip name-server 172.33.44.1
How does the Ping command work?
sends an echo request packet to teh destination and wiats for an echo reply through ICMP messages.
How many packets does Ping send by default?
5
How many possible replies can be returned with Ping?
7
What does the fallowing "ping" reply mean?
!
Successful receipt of the ICMP echo
What does the fallowing "ping" reply mean?
.
Request Timed Out
What does the fallowing "ping" reply mean?
U
Destination was unreachable
What does the fallowing "ping" reply mean?
C
Congestion experienced
What does the fallowing "ping" reply mean?
I (i)
ping interrupted
What does the fallowing "ping" reply mean?
?
Packet type unknown
What does the fallowing "ping" reply mean?
&
Packet TTL exceeded
what are the other 4 values returned after a ping?
- Quantity of ICMP packets sent
- Timeout Duration
- Transfer Success Rate
- Minimum, Average and Max round trip times for the ICMP packets sent.
what is the process for using the "extended ping" command?
router>ping

Then configure the rest of your ping commands
what are 3 possible setting you can configure well using the "extended ping" command?
- Protocol type
- size of the ping packets
- number of packets sent
How does the Trace command work? (2)
- sends multiple ICMP packets with higher TTL counters until the packet reaches the destination.
- replies are requested at each hop along the way.
what does the fallowing 'trace' command mean?
!H
a router received, but did not forward
what does the fallowing 'trace' command mean?
P
Protocol unreachable
what does the fallowing 'trace' command mean?
N
Network unreachable
what does the fallowing 'trace' command mean?
U
Port unreachable
what does the fallowing 'trace' command mean?
*
request timed out
What does the fallowing command do?
show ip route
Show the routing table on given router
what is the purpose of the 'debug' command?
obtain information from router and allow you to troubleshoot particular protocols
What does the fallowing command do?
debug all
starts the debug process
how to you turn debug off?
no debug all
what does CDP stand for?
cisco discovery protocol
what is the command to view directly connected cisco devices?
show cdp neighbors
what is the command to disable the view of neighbor cisco devices?
no cdp neighbors
what is the command to disable cdp on 1 port?
(need to be under interface config)
no cdp enable
what are 3 boot functions in teh configuration register?
- force bootstrap
- load IOS from ROM
- load IOS from TFTP server
what is the command to examine the configuration register?
show version
what are 3 configuration register hexadecimal codes?
0x2100
0x2101
0x2102
what does the fallowing hexadecimal code mean?
0x2100
Boot into ROM monitor mode
what does the fallowing hexadecimal code mean?
0x2101
Boot helper image from ROM
(RxBoot Mode)
what does the fallowing hexadecimal code mean?
0x2102
Check startup config file in NVRAM for boot system commands. load IOS from flash if nothing else is specified.
what is ROM Monitor Mode?
the bootstrap program that is built into the firmware of the router.
what does Rom Monitor Mode do? (2)
- initializes the hardware
- load the IOS
What are 2 things ROM monitor mode can be used for?
- perform diagnostics
- recover passwords
what does the fallowing prompt mean?
rommon>
ROM Monitor Mode
what 2 keys can be pressed to enter ROM Monitor Mode?
Ctrl + Break
what is the command to have your router load in ROM Monitor Mode?
config-register 0x2100
what is the command to have your router load in RxBoot mode?
config-register 0x2101
what is RxBoot mode used for?
load limited version of IOS from ROM
what is the fallowing an example of?
"c2600-i-mz.123-15b.bin"
IOS filename on TFTP server
what is the command to boot IOS file from a TFTP server?
router(config)# boot system tftp c2600-i-mz.123-15b.bin
What does SDM stand for and what does it do?
Security Device Manager
- web-based tool implement and test security configurations
what 2 keys can be pressed to enter ROM Monitor Mode?
Ctrl + Break
what is the command to have your router load in ROM Monitor Mode?
config-register 0x2100
what is the command to have your router load in RxBoot mode?
config-register 0x2101
what is RxBoot mode used for?
load limited version of IOS from ROM
what is the fallowing an example of?
"c2600-i-mz.123-15b.bin"
IOS filename on TFTP server
what is the command to boot IOS file from a TFTP server?
router(config)# boot system tftp c2600-i-mz.123-15b.bin
What does SDM stand for and what does it do?
Security Device Manager
- web-based tool implement and test security configurations