The execute permission on a directory means you can use the cd command to change into the directory. It also means you can access the files and subdirectories inside the directory, if you have read permission on them. The execute permission does not affect the visibility or exportability of the directory. References:
Question 2
Which statements regarding subvolumes in a BtrFS filesystem are true (Choose two)
Options:
A.
Every subvolume on a BtrFS filesystem must have the same quota if quotas are implemented.
B.
Even though subvolumes in BtrFS appear to be subdirectories, subvolumes can be mounted separately. The -o sub=
C.
Every subvolume on a BtrFS fiLesystem must have a name that begins with the "@" character.
D.
Multiple virtual filesystems can be created inside the BtrFS filesystem.
Answer:
B, D
Explanation:
Explanation:
Subvolumes in BtrFS are like virtual filesystems that can be mounted separately with the -o subvol= option. They can also have different attributes and quotas. Subvolumes do not have to start with “@” character, although some default subvolumes use this convention. References:
Question 3
Which UID does the root user have?
Options:
A.
0
B.
001
C.
100
D.
1001
E.
The root user does not have an ID assigned
Answer:
A
Explanation:
Explanation:
The UID that the root user has is 0. The UID (user ID) is a numeric value that uniquely identifies a user on the system. The root user is the superuser or administrator who has full privileges and access to all files and commands on the system. The root user always has the UID of 0, regardless of its name or password. References: