LFCS Practice Questions

A.  

env

B.  

set

C.  

env -a

D.  

echo $ENV

A.  

Port 23 is the well known port for the telnet service which is a plain text protocol that should no longer be used.

B.  

Port 23 is the well known port for the SSH service which provides secure logins.

C.  

Port 23 is the well known port for the rlogin service which is SSL secured by default.

D.  

Port 23 is the well known port for the system login services which are encrypted when the user runs the starttls command in his login shell.

A.  

Match the preceding qualifier one or more times.

B.  

Match the preceding qualifier zero or more times.

C.  

Matchthe preceding qualifier zero or one times.

D.  

Match a literal ? character.

A.  

It fetches new emails from a remote server using POP3 or IMAP.

B.  

It is a multi-user mailing list manager.

C.  

It is a proprietary tool contained only in the qmail MT

A.  

D.  

It queries the mail queue of the local MT

A.  

E.  

It is a command-line based tool for reading and writing emails.

A.  

1

6

1

1

1

6

B.  

1

5

10

15

C.  

1

2

3

4

D.  

2

3

4

5

E.  

5

10

15

20

A.  

core

B.  

edquota

C.  

ulimit

D.  

quota

A.  

test1 test2

B.  

test2 test1

C.  

script.sh test2

D.  

script.sh test1

E.  

test1 script.sh

A.  

text=olaf\ is\ home

B.  

text=$olaf is home

C.  

$text='olaf is home'

D.  

text=='olaf is home'

E.  

text="olaf is home"

A.  

It is placed in curly brackets as in Section SectionName { ... }.

B.  

It is placed between a line containing Section "SectionName" and a line containing EndSection.

C.  

It is placed between the tags

D.  

It is placed after the row [SectionName].

E.  

It is placed after an initial unindented Section "SectionName" and must be indented by exactly one tab character.

A.  

inode

B.  

ls

C.  

ln

D.  

cp