6-7

Question 1

What is the maximum filename length in Linux?

Answer 1

255

Question 2

Three names for the file permission categories:

Answer 2

user, group, other

Question 3

using the setfacl command, what option will delete an ACL (the whole thing)?

Answer 3

-b (bomb, -d is for default, not delete)

Question 4

When using the setfacl command, what option will add an ACL?

Answer 4

-m (modify)

Question 5

What does the +/- mean on the first permission of a file?

Answer 5

ACL is or is not set.

Question 6

T/F: When setting permissions symbolically, commas and space should not be placed between permissions for one group.

Answer 6

True

Example: chmod g=rwx,o-r

Question 7

What is wrong with the following link command?

ln -s /home/stu25/fstab.linkname /etc/fstab

Answer 7

the linkname and /etc/fstab should be reversed.
you put the real thing first, then the destination.

Question 8

The Linux _____ sets a standard directory structure and promotes interoperability.

Answer 8

FHS

Question 9

Using a(n) _____ will allow a finer grain control over a filesystem.

Answer 9

ACL

Question 10

Given r–rw-r–, can the owner edit the file if he/she is a member of the group?

Answer 10

False/no. Owner/user perms override the others.

Question 11

chmod uses CAPTIAL -R!

Answer 11

true

Question 12

All commands support the use of ACLs.

Answer 12

False

Question 13

Spaces are supported in Linux filenames, but not recommended.

Answer 13

True

Question 14

Using the ln command, what option will create a HARD
link?

Answer 14

no option is required (-s is for creating a symbolic/soft link)

Question 15

What Linux command will remove a filesystem link?

Answer 15

rm, NOT rmln

Question 16

What is the name of the Kernel security module for access control security policies?

Answer 16

SELinux

Question 17

Setting an ACL overwrites other permissions a user has over a file. This is their effective rights.

Answer 17

True.

Question 18

What permission would allow a user to only GET INTO a folder, but not see or modify anything?

Answer 18

Execute

Question 19

Which file/directory locating command is based on a database?

Answer 19

locate

Question 20

Which option cannot be used when creating a compressed tar archive?

Answer 20

-x (stands for extract)

Question 21

Of w, who, and users, which command will give the most information?

Answer 21

w lol its the shortest one

Question 22

The nano text editor is based on the micro text editor.

Answer 22

False

Question 23

Which comprehensive date utility will display details on the date, time, NTP synch., and if daylight savings time is active?

Answer 23

timedatectl. its the longest/most comprehensive

Question 24

Which compression util. is the oldest and was originally used with Solaris UNIX?

Answer 24

compress

Question 25

What two commands will display and change the server hostname?

Answer 25

hostnamectl, hostname

Question 26

Which newer and best compression util. was the used in our lab environment?

Answer 26

xz (best compression)

Question 27

What option cannot be used when EXTRACTING a compressed tar archive?

Answer 27

-c (this means create)

Question 28

Options are order sensitive when using tar.

Answer 28

True

Question 29

Which key does NOT start entry mode in vi?

Answer 29

u (but a, i, O do)

Question 30

Which keystroke in vi copies a line of text?

Answer 30

yy

Question 31

Which is NOT a vi editor mode?

Answer 31

Insert (entry, command and last line are the correct modes)

Question 32

Which compression utility is most common in the Linux environment?

Answer 32

gzip

Question 33

Which newer pager file viewing util. is the most feature rich?

Answer 33

most (its self-explanatory)

Question 34

Which zip util. has great, but not the best compression?

Answer 34

bzip2 (2nd place, its ok.)

Question 35

What command deletes a file and makes it unrecoverable?

Answer 35

shred

Question 36

lshw, lspci, lsusb display information about the server hardware.

Answer 36

True

Question 37

The option will view the tarball without opening it?

Answer 37

-t (stands for table of contents)

Question 38

The _______ command converts a command's output to another command's arguments.

Answer 38

xargs

Question 39

Which file viewing util. will display FILE LINES in REVerse order?

Answer 39

rev

Question 40

Which file viewing util. will display the file [content] in reverse order?

Answer 40

tac

Question 41

dmesg displays kernel messages.

Answer 41

True

Question 42

What does tar stand for?

Answer 42

Tape archive

Question 43

Which file/directory locating command has the most options and is most powerful, but is the slowest when locating items?

Answer 43

find

Question 44

What do lpstat, lpr, lpq and lprm have in common?

Answer 44

They are printing related commands

Question 45

Why use editor like VI?

Answer 45

all of the above (theyre good things)

Question 46

What are the purposes of: df testdisk free du

Answer 46

df - displays disk statistics per partition testdisk - disk drive troubleshooting tool free - displays physical and virtual RAM statistics du - displays disk consumption of directories

Question 47

What permission can allow users to change their own passwords?

Answer 47

SetUID

Question 48

Filename extensions are NOT optional. They are required for all files.

Answer 48

False, dont need them.

Question 49

There are always ____ parts to a find command.

Answer 49

4 1: find 2: where do you want to look? (/ is the best choice if unknown) 3: options pertaining to the name of the file such as -iname 4: keywords example: find /etc -iname syscon*