File and Directory Permissions

Question 1

Which command is used for changing the permissions of a file or directory?

Answer 1

chmod

Question 2

What does “ugoa” stands for?

Answer 2

User Category, groups, others, all

Question 3

What operations can you apply into a permission?

Answer 3

Add, subtract, set permissions

Question 4

What does rwx stands for?

Answer 4

Read, Write, Execute

Question 5

What are the symbols that denote file type in permissions?

Answer 5

• -> Regular file
  d -> Directory
  l -> Symolic link

Question 6

What is the base 10 value for read permission?

Answer 6

4

Question 7

What is the base 10 value for write permission?

Answer 7

2

Question 8

What is the base 10 value for executable permission?

Answer 8

1

Question 9

What is the base 10 representation of this permission “-rwx——”

Answer 9

700

Question 10

What is the base 10 representation of this permission “dr–r–r–”

Answer 10

444

Question 11

is 0700 a valid permission?

Answer 11

Yes

Question 12

What is the string representation of 177 permission in a symbolic link?

Answer 12

l–xrwxrwx

Question 13

What is the default permission when creating a directory?

Answer 13

777

Question 14

What is the default permission when creating a file?

Answer 14

666

Question 15

Name some common umask configurations?

Answer 15

002, 022, 077, 007