Linux Foundation LFCS Exam Practice Test Instant Access

Question 1

Given a file called birthdays containing lines like:

YYYY-MM-DD Name

1983-06-02 Tim

1995-12-17 Sue

Which command would you use to output the lines belonging to all people listed whose birthday is in May or June?

Agrep '[56]' birthdays

Bgrep 05?6? birthdays

Cgrep '[0-9]*-0[56]-' birthdays

Dgrep 06 birthdays | grep 05

Answer : C

Question 2

What argument to the -type option of find will match files that are symbolic links? (Specify only the argument and no other options or words.)

See Below Explanation:

Answer : A

Question 3

In an xinetd configuration file, which attribute specifies the network address that will be used to provide the service?

See Below Explanation:

Answer : A

Question 4

Which 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?

See Below Explanation:

Answer : A

Question 5

On a regular users workstation the route command takes a long time before printing out the routing table. Which of the following errors does that indicate?

AThe local routing information may be corrupted and must be re-validated using a routing protocol.

BOne of the routers in the routing table is not available which causes the automatic router failure detection mechanism (ARF-D) to wait for a timeout.

CThere may accidentally be more than one default router in which case a default router election has to be done on the network in order to choose one router as the default.

DDNS resolution may not be working as route by default tries to resolve names of routers and destinations and may run into a timeout.

Answer : D

Question 6

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

ASet a network interface active or inactive.

BSpecify the kernel module to be used with a network interface.

CAllow regular users to change the network configuration of a network interface.

DChange the netmask used on a network interface.

ESpecify which network services are available on a network interface.

Answer : A, D

Question 7

Which of the following tools used for DNS debugging, reports not only the response from the name server but also details about the query?

Adnsq

Bdig

Chostname

Ddnslookup

Ezoneinfo

Answer : B

Linux Foundation CERTIFIED SYSTEM ADMINISTRATOR Exam Practice Test