GSEC Review Practice Exam Questions
with Actual Answers.
LUKS - CORRECT ANSWER Linux Unified Key Setup
What is LUKS - CORRECT ANSWER LUKS is the standard for Linux hard disk encryption
What is Cryptsetup? - CORRECT ANSWER Cryptsetup is the utility used to conveniently set up disk
encryption based on the dm-crypt kernel module.
These include:
Plain dm-crypt volumes
LUKS Volumes
Loop-AES
and TrueCrypt format
LUKS main features - CORRECT ANSWER Compatibility via standardization
Secure against low entropy attacks
Support multiple keys
Effective passphrase revocation
Free
What does ls -l command do? - CORRECT ANSWER This allows you to view attributes of a file, and allows
to view a detailed listing.
What does ls -d command do? - CORRECT ANSWER This forces the ls command to display file attributes
for the actual directories listed.
-rwsr-xr-x 1 root root 95564 Feb 18 /bin/su
, drwxr-xr-x 92 root root 6144 Sep 6 03:30 /etc - CORRECT ANSWER These are permissions and file type
notations.
the first - means it is a regular file
the d indicates it is a directory
the other 9 letter codes indicates the permission of the file or directory.
-rwsr-xr-x 1 root root 95564 Feb 18 /bin/su
drwxr-xr-x 92 root root 6144 Sep 6 03:30 /etc - CORRECT ANSWER The 92 and 1 is the link count field
-rwsr-xr-x 1 root root 95564 Feb 18 /bin/su
drwxr-xr-x 92 root root 6144 Sep 6 03:30 /etc - CORRECT ANSWER The next two positions after the 92
and 1 are the file and group owner. These combine with the file access permissions to tell the system
who has access to the file.
Two ways to represent permissions - CORRECT ANSWER Symbolic: Represented by letters.
R: Read Access
W: Write Access
X: Execute, run access
-:No Permissions
Absolute: Represented by number (4,2,1):
4: Read Access
2: Write Access
1: Execute Access
0: No permission
with Actual Answers.
LUKS - CORRECT ANSWER Linux Unified Key Setup
What is LUKS - CORRECT ANSWER LUKS is the standard for Linux hard disk encryption
What is Cryptsetup? - CORRECT ANSWER Cryptsetup is the utility used to conveniently set up disk
encryption based on the dm-crypt kernel module.
These include:
Plain dm-crypt volumes
LUKS Volumes
Loop-AES
and TrueCrypt format
LUKS main features - CORRECT ANSWER Compatibility via standardization
Secure against low entropy attacks
Support multiple keys
Effective passphrase revocation
Free
What does ls -l command do? - CORRECT ANSWER This allows you to view attributes of a file, and allows
to view a detailed listing.
What does ls -d command do? - CORRECT ANSWER This forces the ls command to display file attributes
for the actual directories listed.
-rwsr-xr-x 1 root root 95564 Feb 18 /bin/su
, drwxr-xr-x 92 root root 6144 Sep 6 03:30 /etc - CORRECT ANSWER These are permissions and file type
notations.
the first - means it is a regular file
the d indicates it is a directory
the other 9 letter codes indicates the permission of the file or directory.
-rwsr-xr-x 1 root root 95564 Feb 18 /bin/su
drwxr-xr-x 92 root root 6144 Sep 6 03:30 /etc - CORRECT ANSWER The 92 and 1 is the link count field
-rwsr-xr-x 1 root root 95564 Feb 18 /bin/su
drwxr-xr-x 92 root root 6144 Sep 6 03:30 /etc - CORRECT ANSWER The next two positions after the 92
and 1 are the file and group owner. These combine with the file access permissions to tell the system
who has access to the file.
Two ways to represent permissions - CORRECT ANSWER Symbolic: Represented by letters.
R: Read Access
W: Write Access
X: Execute, run access
-:No Permissions
Absolute: Represented by number (4,2,1):
4: Read Access
2: Write Access
1: Execute Access
0: No permission
