CCNA - IOS & SDM

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Author:
lokeey
ID:
205689
Filename:
CCNA - IOS & SDM
Updated:
2013-05-02 20:26:45
Tags:
ccna ios sdm
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Description:
ccna ios and sdm configuration
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  1. What must you do before you change the configuration register and what do you do to obtain this information?
    • Make sure you know the current config register value
    • use the show version command to get this information
  2. What command will encrypt all passwords?
    The command service password-encryption from global config mode
  3. What is the default serial link bandwidth that every Cisco router ships with?
    T1 (1.544Mbps)
  4. What type of device provides clocking to the router interface?
    DCE - Data Communications Equipment
  5. What command displays the configurable parameters and statistics of all interfaces on a router?
    show interfaces
  6. This command is used to quickly see the status of Layer 1 & 2 of each interface as well as IP addresses used
    show protocols
  7. The bandwidth of a serial link is used by which 2 routing protocols? And why?
    • EIGRP & OSPF
    • To calculate the best cost (path) to a remote network
  8. What is the default clock rate that all new ISR devices ship with?
    2,000,000
  9. What is the most common, as well as most tested, method of saving the configuration of a router?
    And also name the way to erase the configuration of a router?
    • copy running-config startup-config
    • erase startup-config & reload the router
  10. What steps must you follow/complete before you backup an IOS image to a network server?
    • make sure you can access the network server
    • ensure there is adequate space for the code image
    • verify the file naming and path requirement
  11. You can view the statistics for the interfaces on the router, verify whether the interfaces are shut down and see the ip address of each interface by typing or using this command?
    show interfaces
  12. If you type show interface serial 0 and see down, line protocol is down. What problem could you consider to be experiencing?
    If you see it as up, line protocol is down
    • a physical layer problem
    • a data link layer problem
  13. Using privileged-mode, what does the following command allow you to do?
    - copy flash tftp
    - copy tftp flash
    • backup an IOS image file from memory to a TFTP (network) server
    • restore or upgrade a file from TFTP to flash memory
  14. What mode allows a user to view and change the config on a router?
    You can enter this mode by typing the command "enable"
    Provides access to all other router commands
    Privileged Exec Mode
  15. What is the command sequence to set the console password?
    • enable
    • config t
    • line con 0
    • password x1x2x3x4
    • login
    • ctrlZ
    • wr
  16. What is the command sequence to set the telnet password on a router?
    • enable
    • config t
    • line vty 0 4
    • password x1x2x3x4
    • login
    • ctrlZ
    • wr
  17. Give the information that the show version command provides?
    • basic config for system hardware
    • software version
    • names and sources of config files
    • config-register settings
    • boot image
  18. What tool provides an easy format for someone who does not understand how to configure a router from the command line?
    *interactive config dialog
    setup
  19. The following mode provides a command-line interface with very few available commands by default:
    - does not allow config to be viewed or changed
    - limited to basic monitoring commands
    • user mode
    • user exec mode
  20. Setup mode is automatically started if a router boots and doesn't find what?
    a startup-config is not found in nvram
  21. What happens when you power on a router?
    -provide sequence in which it happens
    • POST
    • Bootstrap - Load Cisco IOS from flash memory, if file is present
    • looks for and loads valid config in nvram called startup-config
    • if no file is present in nvram, router will go into setup mode
  22. What is the default setting on all Cisco routers and tells the router to look in NVRAM for the boot sequence?
    0x2102 config register setting
  23. What setting tells the router to boot from ROM?
    0x2101 config register setting
  24. What setting tells the router NOT to load the startup config in NVRAM to provide password recovery?
    0x2142
  25. By default, Cisco routers are all what type of devices?
    DTE - Data Terminal Equipment
  26. DTE devices means that you must configure an interface to provide clocking if you need it to act like what type of device?
    DCE - Data Communication Equipment
  27. What is the command sequence to set the enable secret password?
    • enable
    • config t
    • enable secret 'password'
  28. What is the command sequence to set the hostname of a router?
    • enable
    • config t
    • hostname rogue1
  29. What is the command sequence to configure SDM on a router?
    • enable
    • config t
    • ip http server
    • ip http secure-server
    • ip http authentication local
    • username sammy privilege 15 password 0 1x2x3x4
    • line console 0
    • login local
    • exit
    • line vty 0 1xxx
    • privilege level 15
    • login local
    • transport input telnet ssh
    • ctrlZ
  30. How many simultaneous Telnet sessions does a Cisco router support by default?
    Five, if they do not have the Enterprise edition of the IOS
  31. What is the command to copy the startup-config to DRAM?
    copy start run
  32. What is the command to copy a Cisco IOS to a TFTP server?
    copy flash tftp
  33. What is the command to copy a Cisco startup-config file to a TFTP server?
    copy start tftp
  34. What is an older command that you use to copy the startup-config file to DRAM?
    config mem
  35. What command(s) can you use to see the neighbor router's IP address from your router prompt?
    show cdp neighbor detail or show cdp entry *
  36. What command can you use to see the hostname, local interface, platform and remote port of a neighbor router?
    show cdp neighbor
  37. What keystrokes can you use to telnet into multiple devices simultaneously?
    Ctrl+Shift+6, then X
  38. What command will show you your active Telnet connections to neighbors and remote devices?
    show sessions
  39. What command can you use to upgrade a Cisco IOS?
    copy tftp flash
  40. What command can you use to merge a backup configuration with the configuration in RAM?
    copy tftp run or copy start run
  41. What does the command o/r 0x2142 provide?
    A. It is used to restart the router
    B. It is used to enter ROM Monitor mode
    C. It is used to view the lost password
    D. It is used to bypass the configuration in NVRAM
    D. It is used to bypass the configuration in NVRAM
    (this multiple choice question has been scrambled)
  42. Which command will copy the IOS to a backup host on your network?
    A. transfer IOS to 172.168.10.1
    B. copy flash tftp
    C. copy tftp flash
    D. copy start tftp
    E. copy run start
    B. copy flash tftp
    (this multiple choice question has been scrambled)
  43. You copy a configuration from a network host to a router's RAM. The configuration looks correct, yet it is not working at all. What could the problem be?
    A. the ios became corrupted after the copy command was initiated
    B. the copy did not override the shutdown command in running-config.
    C. you copied the wrong config into RAM
    D. you copied the config into flash mem instead
    B. the copy did not override the shutdown command in running-config.
    (this multiple choice question has been scrambled)
  44. You want to upgrade the IOS of a router without removing the image currently installed. What command will display the amount of memory consumed by the current IOS image and indicate whether there is enough room available to hold both the current and new images?
    A. show buffers
    B. show version
    C. show flash
    D. show memory
    E. show running-config
    C. show flash - will provide you with the current IOS name and size and the size of flash memory
    (this multiple choice question has been scrambled)
  45. You receive a new router to connect, but upon connecting the console cable, you see that there is already a configuration on the router. What should be done before a new configuration is entered in the router?
    A. The new config should be entered and saved
    B. NVRAM should be erased and the router restarted
    C. Flash should be erased and the router restarted
    D. RAM should be erased and the router restarted
    B. NVRAM should be erased and the router restarted using the erase startup-config command and then reload the router using the reload command.
    (this multiple choice question has been scrambled)
  46. Which command loads a new version of the Cisco IOS into a router?
    A. copy flast tftp
    B. copy tftp flash
    C. copy ftp flash
    D. copy flash ftp
    B. copy tftp flash - will allow you to copy a new IOS into flash memory of the router
    (this multiple choice question has been scrambled)
  47. Which command will show you the IOS version running on a router?
    A. sh IOS
    B. sh flash
    C. sh version
    D. sh running-config
    C. sh version - will show you the IOS file running currently on the router. sh flash command show you the contents of flash memory, not which file is running.
    (this multiple choice question has been scrambled)
  48. What should the config register value be after you successfully complete the password recovery procedure and return the router to normal operation?
    A. 0x2100
    B. 0x2101
    C. 0x2142
    D. 0x2102
    D. 0x2102
    (this multiple choice question has been scrambled)
  49. Which command gives you the CDP status on router interfaces or switch ports?
    A. sh cdp interface
    B. sh cdp protocols
    C. sh cdp entry *
    D. sh cdp neighbors
    A. sh cdp interface - will display info about each interface, including the encapsulation on the line, the timer and the hold time for each interface
    (this multiple choice question has been scrambled)
  50. What three commands can be used to show LAN connectivity problems on a router?
    a. sh interfaces
    b. sh ip route
    c. tracert
    d. ping
    e. dns lookups
    • a. sh interfaces
    • b. sh ip route
    • d. ping
  51. What information is displayed by the sh hosts command? (choose 2)
    A. the names of the routers created using the hostsname command
    B. temporary dns entries
    C. the ip addresses of the workstations allowed to access the router
    D. the length of time a host has been connected to the router via Telnet
    E. permanent name-to-address mappings created using the ip hosts command
    B. D. - The sh hosts command provides information on DNS entries and permanent name-to-address mappings created using the ip hosts command
    (this multiple choice question has been scrambled)
  52. You are unsuccessful telnetting into a remote device, but can successfully ping it. What could the problem be? (choose 2)
    a. ip address are incorrect
    b. access control list is filtering Telnet
    c. there is a defective serial cable
    d. the vty password is missing
    • b. access control list is filtering Telnet
    • d. the vty password is missing
  53. You telnet to a router and make your necessary changes; now you want to end the Telnet session. What command do you type in?
    A. disconnect
    B. exit
    C. close
    D. disable
    B. exit - since the question never mentioned anything about a suspend session, you can assume that a Telnet session is still open and you would just type exit to close
    (this multiple choice question has been scrambled)
  54. You telnet into a remote device and type debug ip rip, but no output from theĀ debug command is seen. What could the problem be?
    A. You must type the show ip rip command first
    B. debug output is sent only to the console
    C. you must use the terminal montior command
    D. ip addressing on the network is incorrect
    C. you must use the terminal montior command to see the console message through your Telnet session
    (this multiple choice question has been scrambled)
  55. Which command displays the configuration register setting?
    A. show boot version
    B. show ip route
    C. show version
    D. show flash
    C. show version
    (this multiple choice question has been scrambled)
  56. You need to gather the IP address of a remote switch that is located in Hawaii. What can you do to find the address?
    A. issue the show cdp neighbors detail command on the router connected to the switch
    B. fly to hawaii, console into the switch, then relax and have a drink with an umbrella in it
    C. issue the show ip arp command on the router connected to the switch
    D. issue the show cdp neighbor command on the router connected to the switch
    E. issue the show ip route command on the router connected to the switch
    A. issue the show cdp neighbors detail command on the router connected to the switch
    (this multiple choice question has been scrambled)
  57. You have your laptop directly connected into a router's Ethernet port. Which of the following are among the requirements for copy flash tftp command to be successful? (chs 3)
    a. tftp server software must be running on the router
    b. tftp server software must be running on your laptop
    c. the ethernet cable connecting the laptop directly into the router's ethernet port msut be a straight-thru cable
    d. the laptop must be on the same subnet as the router's ethernet interface
    e. the copy flash tftp command must be supplied the ip address of the laptop
    f. there must be enough room in the flash memory of the router to accommodate the file to be copied
    b, d, e. before you back up an IOS image to a laptop directly connected to a router's ethernet port, make sure the tftp server software is running on your laptop, that the ethernet cable is a "crossover," and that the laptop is in the same subnet as the router's ethernet port, and then you can use the copy flash tftp command from your laptop
  58. The configuration register setting of 0x2102 provides what function to a router?
    A. provides password recovery
    B. boots an ios image stored in ROM
    C. boots the ios from tftp server
    D. tells the router to look in NVRAM for the boot sequence
    E. tells the router to boot into ROM monitor mode
    D. the default config register setting of 0x2102 tells the router to look in NVRAM for the boot sequence.
    (this multiple choice question has been scrambled)
  59. What command will provide you with information about all the sessions your router has with other routers?
    A. sh int
    B. sh flash
    C. sh sessions
    D. sh cdp neighbors
    E. sh version
    C. sh sessions
    (this multiple choice question has been scrambled)
  60. In global config mode, what command can you use to build a static host table on your router and apply multiple ip addresses against the same host entry?
    ip host host_name ip_address
  61. What command would you use to verify the host table?
    A. sh sessions hosts
    B. sh cdp host sessions
    C. sh cdp hosts
    D. sh hosts
    E. sh session
    D. show hosts
    (this multiple choice question has been scrambled)
  62. You can ping an ip address from a router's user mode or privileged mode, but not from which mode?
    not from configuration mode
  63. What type of requests does Ping use to verify an active IP address on a network?
    A. Telnet
    B. ICMP
    C. SSH
    D. FTP
    E. SMTP
    B. ICMP echo requests and ICMP echo replies
    (this multiple choice question has been scrambled)
  64. What is the command sequence to configure ssh on a router?
    • enable
    • config t
    • ip domain-name domain.com
    • crypto key generate rsa general-keys modulus 1024
    • ip ssh time-out [interval #]
    • ip ssh authentication-retries [#]
    • line vty 0 - x
    • transport input ssh

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