CCNA: What Do You Know About Virtual Terminal? Trivia Quiz

11 Questions | Total Attempts: 23

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CCNA: What Do You Know About Virtual Terminal? Trivia Quiz

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Questions and Answers
  • 1. 
    Which command encrypts all plaintext passwords?
    • A. 

      Router# service password-encryption

    • B. 

      Router(config)# password-encryption

    • C. 

      Router(config)# service password-encryption

    • D. 

      Router# password-encryption

  • 2. 
    What can be done to secure the virtual terminal interfaces on a router?
    • A. 

      Administratively shut down the interface.

    • B. 

      Physically secure the interface.

    • C. 

      Create an access list and apply it to the virtual terminal interfaces with the access-group command.

    • D. 

      Configure a virtual terminal password and login process.

    • E. 

      Enter an access list and apply it to the virtual terminal interfaces using the access-class command.

  • 3. 
    Refer to the exhibit. Why is flash memory erased prior to upgrading the IOS image from the TFTP server?
    • A. 

      The router cannot verify that the Cisco IOS image currently in flash is valid

    • B. 

      Flash memory on Cisco routers can contain only a single IOS image.

    • C. 

      Erasing current flash content is requested during the copy dialog.

    • D. 

      In order for the router to use the new image as the default, it must be the only IOS image in flash.

  • 4. 
    How does using the service password encryption command on a router provide additional security?
    • A. 

      By encrypting all passwords passing through the router

    • B. 

      By encrypting passwords in the plain text configuration file

    • C. 

      By requiring entry of encrypted passwords for access to the device

    • D. 

      By configuring an MD5 encrypted key to be used by routing protocols to validate routing exchanges

    • E. 

      By automatically suggesting encrypted passwords for use in configuring the router

  • 5. 
    What is a global command?
    • A. 

      A command that is available in every release of IOS, regardless of the version or deployment status

    • B. 

      A command that can be entered in any configuration mode

    • C. 

      A command that is universal in application and supports all protocols

    • D. 

      A command that is implemented in all foreign and domestic IOS versions

    • E. 

      A command that is set once and affects the entire router

  • 6. 
    Refer to the exhibit.What is the effect of the configuration that is shown?
    • A. 

      It configures SSH globally for all logins.

    • B. 

      It tells the router or switch to try to establish an SSh connection first and if that foils to use Telnet.

    • C. 

      It configures the virtual terminal lines with the password 030752180500.

    • D. 

      It configures a Cisco network device to use the SSH protocol on incoming communications via the virtual terminal ports.

    • E. 

      It allows seven failed login attempts before the VTY lines are temporarily shutdown.

  • 7. 
    Which router IOS commands can be used to troubleshoot LAN connectivity problems?
    • A. 

      Ping

    • B. 

      Tracert

    • C. 

      Ipconfig

    • D. 

      Show ip route

    • E. 

      Winipcfg

    • F. 

      Show interfaces

  • 8. 
    Which command shows your active Telnet connections?
    • A. 

      Show sessions

    • B. 

      Show cdp neighbors

    • C. 

      Show users

    • D. 

      Show queue

  • 9. 
    Which command would you configure globally on a Cisco router that would allow you to view directly connected Cisco devices?
    • A. 

      Enable cdp

    • B. 

      Cdp enable

    • C. 

      Cdp run

    • D. 

      Run cdp

  • 10. 
    A network administrator needs to allow only one Telnet connection to a router. For anyone viewing the confguration and issuing the show run command, the password for Telnet access should be encrypted. Which set of commands will accomplish this task?
    • A. 

      Service password-encryption access-list 1 permit 192.168.1.0 0.0.0.255 line vty 0 4 login password cisco access-class 1

    • B. 

      Enable password secret line vty 0 login password cisco

    • C. 

      Service password-encryption line vty 1 login password cisco

    • D. 

      Service password-encryption line vty 0 4 login password cisco

  • 11. 
    What is the effect of using the service password-encryption command?
    • A. 

      Only passwords configured after the command has been entered will be encrypted.

    • B. 

      Only the enable password will be encrypted.

    • C. 

      Only the enable secret password will be encrypted

    • D. 

      It will encrypt the secret password and remove the enable secret password from the configuration.

    • E. 

      It will encrypt all current and future passwords.