The Up to the minute Guide To 102-400 pdf

Q8. After issuing:

function myfunction { echo $1 $2 ; } in Bash, which output does: myfunction A B C

Produce?

A. A B

B. A B C

C. A C

D. B C

E. C B A

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Q9. Which of the following are commonly used Mail Transfer Agent (MTA) applications? (Choose THREE correct answers.)

A. Postfix

B. Procmail

C. Sendmail

D. Exim

E. SMTPd

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Q10. CORRECT TEXTWhat is the lowest numbered unprivileged TCP port? (Specify the number in digits only.)

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Q11. What is the purpose of the nsswitch.conf file?

A. It is used to configure where the C library looks for system information such as host names and user passwords.

B. It is used to configure network protocol port numbers such as for HTTP or SMTP.

C. It is used to configure LDAP authentication services for the local system.

D. It is used to configure which network services will be turned on during the next system boot.

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Q12. CORRECT TEXTBy default, the contents of which directory will be copied to a new user's home directory when the account is created by passing the -m option to the useradd command? (Specify the full path to the directory.)

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Q13. CORRECT TEXTWhich file lists which users can execute commands using sudo? (Specify the full name of the file, including path.)

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Q14. CORRECT TEXTWhich keyword must be listed in the hosts option of the Name Service Switch configuration file in order to make host lookups consult the /etc/hosts file?

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Q15. What is true about the ntpdate command?

A. It is the primary management command for the NTP time server.

B. It updates the local system's date (i.e. day, month and year) but not the time (i.e. hours, minutes, seconds).

C. It queries one or more NTP time servers and adjusts the system time accordingly.

D. It sends the local system time to one or many remote NTP time servers for redistribution.

E. It can be used by any user to set the user clock independently of the system clock.

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Q16. What is true regarding a default route?

A. The default route is always used first. When the default route is not available more specific routes are tried.

B. When a default route is set, all other routes are disabled until the default route is deleted.

C. The default route is only used if there is not a more specific route to a destination host or network.

D. Without a default route, no network communication even in directly attached networks is possible.

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Q17. What of the following can be done by the command ifconfig? (Choose TWO correct answers.)

A. Set a network interface active or inactive.

B. Specify the kernel module to be used with a network interface.

C. Allow regular users to change the network configuration of a network interface.

D. Change the netmask used on a network interface.

E. Specify which network services are available on a network interface.

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