Q3

Question 1

What will these do?

chmod ugo+rwx /public
chmod 777 /public

Answer 1

Give everyone access to the /public directory

Question 2

What will these do

chmod a+rwx /public
chmod ugo=rwx /public

Answer 2

Give everyone access to the /public directory

Question 3

Text files, scripts, or executables use the _ character in linux, directories use the _ file name

Answer 3

-, d

Question 4

Block devices use the _ character, character devices use the _ character

Answer 4

b, c

Question 5

In Linux the named pipe or FIFO (first in first out) uses the _ character

Answer 5

p

Question 6

The symbolic link uses the _ character

Answer 6

l

Question 7

DIRECTORY PERMISSION- Minimum permission for a file from the directory to be deleted

Answer 7

W and X are needed for the directory

Question 8

The user has set the umask to 044. A new directory is created, What will be the directory’s permission? Convert to binary and perform one’s complement.

What would the permission be if it was a file?

Answer 8

rwx -wx -wx for directory

rw- -w- -w- for file

Question 9

Identify the octal number associated with the permission

-rw- rw- r–

Answer 9

664

Question 10

T/F - A user only needs W and X permissions in the directory to delete a file. No permissions are needed for the file itself.

Answer 10

True

Question 11

T/F - umask can provide execute permissions for scripts

Answer 11

False

Question 12

T/F - Execute permission to a shell script must be explicitly provided (cannot use umask)

Answer 12

True

Question 13

Minimum permissions to run a shell script

Answer 13

R and X

Question 14

Command to change owner of Strategy.Q03 to cfo and the group to ExecCmt

Answer 14

chown cfo.ExecCmt Strategy.Q03

Question 15

The root user wants to change the owner to cfo and group to ExecCmt for file Strategy.Q03.

Identify the command that will achieve the result

Answer 15

chown cfo.ExecCmt Strategy.Q03

Question 16

Minimum permissions to run a binary file

Answer 16

Execute

Question 17

Minimum permission required for a file to be copied

Answer 17

read

Question 18

User PrjMgr copies the file Plan.Q01 to directory /archive/Mgt/Q01 using the following command:

cp /home/PrjMgr/Plan.Q01 /archive/Mgt/Q01/

What are the minimum permissions required for the directories PrjMgr and Mgt

Answer 18

source directory X, for target directory W and X

Question 19

user1 moves the file budget.2015 using the following command:

mv /home/user1/budget.2015 /home/accounts/

The minimum file permission required for source and target directories are:

Answer 19

write and execute permission for both

/home/user1 and

/home/accounts directory

Question 20

What is the permission, in octal mode, of the file MySQL.log, given the file listing:

-rwxrw–w- 2 maotse students 15 Jan 25 12:37 MySQL.log

Answer 20

762

Question 21

The account in Linux that has the most access to system resources

Answer 21

root

Question 22

T/F - To move a file, a user must have appropriate permission in the source and target directories, but does not need any permission for the file itself.

Answer 22

True

Question 23

The file permission for a file report.draft in current directory is

-rw-rw-r–,

identify the chmod command that adds execute permissions for owner and removes read permission from others. Permission for group should remain unchanged.

Answer 23

chmod 760 report.draft

Question 24

Identify the octal number associated with the permission

-rwxrwxrwx

Answer 24

777