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Linux Foundation LFCS - Linux Foundation Certified System Administrator

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Total 260 questions

Which of the following words is used to restrict the records that are returned from a SELECT SQL query based on a supplied criteria for the values in the records?

A.

CASE

B.

FROM

C.

WHERE

D.

IF

Which of the following is the device file name for the second partition on the only SCSI drive?

A.

/dev/hda1

B.

/dev/sda2

C.

/dev/sd0a2

D.

/dev/sd1p2

What does the command mount -a do?

A.

It ensures that all file systems listed with the option noauto in /etc/fstab are mounted.

B.

It shows all mounted file systems that have been automatically mounted.

C.

It opens an editor with root privileges and loads /etc/fstab for editing.

D.

It ensures that all file systems listed with the option auto in /etc/fstab are mounted.

E.

It ensures that all file systems listed in /etc/fstab are mounted regardless of their options.

What word is missing from the following SQL statement?

insert into tablename ________(909, 'text');

(Please specify the missing word using lower-case letters only.)

Which of the following IPv4 networks are reserved by IANA for private address assignment and private routing? (Choose THREE correct answers.)

A.

127.0.0.0/8

B.

10.0.0.0/8

C.

169.255.0.0/16

D.

172.16.0.0/12

E.

192.168.0.0/16

Which commands can be used to change a user's account aging information? (Choose THREE correct answers.)

A.

usermod

B.

passwd

C.

chattr

D.

chage

E.

chsh

Which command displays a list of allbackground tasks running in the current shell? (Specify ONLY the command without any path or parameters.)

Which of the following statements is correct regarding the command foo 1> bar?

A.

The stdout from the command foo is appended to the file bar.

B.

The stdout from the command foo overwrites the file bar.

C.

The commandfoo receives its stdin from the file bar.

D.

The command foo receives its stdin from the stdout of the command bar.

E.

The stderr from the command foo is saved to the file bar.

Which of the following kernel parameters instructs the kernel to suppress most boot messages?

A.

silent

B.

verbose=0

C.

nomesg

D.

quiet

Which of the following commands will create an archive file, named backup.tar, containing all the files from the directory /home?

A.

tar /home backup.tar

B.

tar -cf /home backup.tar

C.

tar -xf /home backup.tar

D.

tar -xf backup.tar /home

E.

tar -cf backup.tar /home