Lpi LPIC-1 102-400 Questions & Answers

• Question 21:

  Which of the following may occur as a consequence of using the command ifconfig? (Choose THREE correct answers.)

  A. New name servers may be added to the resolver configuration.

  B. Network interfaces may become active or inactive.

  C. The routing table may change.

  D. IP addresses may change.

  E. The system's host name may change.

  Correct Answer: BCD

• Question 22:

  Which of the following lines are valid in the file /etc/hosts? (Choose TWO correct answers.)

  A. 2001:db8::15 www.example.com www

  B. www.example.com www 203.0.13.15

  C. 203.0.113.15 www.example.com www

  D. www.example.com,www 203.0.13.15,2001:db8::15

  E. 2003.0.113.15,2001:db8::15 www.example.com www

  Correct Answer: AC

• Question 23:

  Which of the following commands can be used to display the local routing table? (Choose TWO correct answers.)

  A. ifconfig

  B. dig

  C. netstat

  D. route

  E. trackroute

  Correct Answer: CD

• Question 24:

  Which of the following is true about IPv6?

  A. With IPv6, the TCP port numbers of most services have changed.

  B. IPv6 no longer supports broadcast addresses.

  C. IPv4 addresses can be used without any change with IPv6.

  D. IPv6 no longer supports multicast addresses.

  E. For IPv6, UDP and TCP have been replaced by the Rapid Transmission Protocol RTP.

  Correct Answer: B

• Question 25:

  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.

  Correct Answer: C

• Question 26:

  Which of the following commands will help identify a broken router between the local and the remote machine?

  A. ps

  B. netstat

  C. nslookup

  D. ifconfig

  E. traceroute

  Correct Answer: E

• Question 27:

  Which of the following details is NOT provided in any output from the netstat utility?

  A. broadcast services

  B. interface statistics

  C. masquerading connections

  D. network connections

  E. routing tables

  Correct Answer: A

• Question 28:

  What is the command to delete the default gateway from the system IP routing table? (Choose TWO correct answers.)

  A. route del default

  B. ifconfig unset default

  C. netstat -r default

  D. ip route del default

  E. sysctl ipv4.default_gw=0

  Correct Answer: AD

• Question 29:

  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.

  Correct Answer: A

• Question 30:

  What is true regarding the file ~/.forward?

  A. As it is owned by the MTA and not writable by the user, it must be edited using the editaliases command.

  B. After editing ~/.forward the user must run newaliases to make the mail server aware of the changes.

  C. Using ~/.forward, root may configure any email address whereas all other users may configure only their own addresses.

  D. When configured correctly, ~/.forward can be used to forward each incoming mail to more than one other recipient.

  Correct Answer: D