Download Security.303-200.CertKiller.2019-02-19.60q.vcex

ProfExam Suite - Black Friday
Vendor: LPI
Exam Code: 303-200
Exam Name: Security
Date: Feb 19, 2019
File Size: 35 KB
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Demo Questions

Question 1
Which command revokes ACL-based write access for groups and named users on the file afile?
  1. setfacl –x group: * : rx, user:*: rx afile
  2. setfacl –x mask: : rx afile
  3. setfacl ~m mask: : rx afile
  4. setfacl ~m group: * : rx, user :*: rx afile
Correct answer: C
Explanation:
http://linuxcommand.org/man_pages/setfacl1.html
http://linuxcommand.org/man_pages/setfacl1.html
Question 2
Which of the following authentication methods was added to NFS in version 4?
  1. Kerberos authentication
  2. SSH hostkey authentication
  3. Winbind authentication
  4. SSL certificate authentication
Correct answer: A
Explanation:
https://www.centos.org/docs/5/html/Deployment_Guide-en-US/s1-nfs-security.html
https://www.centos.org/docs/5/html/Deployment_Guide-en-US/s1-nfs-security.html
Question 3
Which of the following access control models is established by using SELinux?
  1. Security Access Control (SAC)
  2. Group Access Control (GAC)
  3. User Access Control (UAC)
  4. Discretionary Access Control (DAC)
  5. Mandatory Access Control (MAC)
Correct answer: E
Explanation:
https://wiki.centos.org/HowTos/SELinux
https://wiki.centos.org/HowTos/SELinux
Question 4
Which command is used to run a new shell for a user changing the SELinux context? (Specify ONLY the command without any path or parameters.)
  1. newrole
Correct answer: 1
Explanation:
https://www.centos.org/docs/5/html/Deployment_Guide-en-US/sec-sel-admincontrol.html
https://www.centos.org/docs/5/html/Deployment_Guide-en-US/sec-sel-admincontrol.html
Question 5
What option of mount.cifs specifies the user that appears as the local owner of the files of a mounted CIFS share when the server does not provide ownership information? (Specify ONLY the option name without any values or parameters.)
  1. uid=arg
Correct answer: 1
Explanation:
http://linux.die.net/man/8/mount.cifs
http://linux.die.net/man/8/mount.cifs
Question 6
What happens when the command getfattr afile is run while the file afile has no extended attributes set?
  1. getfattr prints a warning and exits with a values of 0.
  2. getfattr prints a warning and exits with a value of 1.
  3. No output is produced and getfattr exits with a value of 0.
  4. No outputs is produced and getfattr exits with a value of 1.
Correct answer: C
Question 7
How are SELinux permissions related to standard Linux permissions? (Choose TWO correct answers.)
  1. SELinux permissions override standard Linux permissions.
  2. Standard Linux permissions override SELinux permissions.
  3. SELinux permissions are verified before standard Linux permissions.
  4. SELinux permissions are verified after standard Linux permissions.
Correct answer: BD
Explanation:
http://www.linuxtopia.org/online_books/getting_started_with_SELinux/SELinux_overview.html
http://www.linuxtopia.org/online_books/getting_started_with_SELinux/SELinux_overview.html
Question 8
Which of the following prefixes could be present in the output of getcifsacl? (Choose THREE correct answers.)
  1. ACL
  2. GRANT
  3. GROUP
  4. OWNER
  5. SID
Correct answer: ACE
Explanation:
https://www.mankier.com/1/getcifsacl
https://www.mankier.com/1/getcifsacl
Question 9
Which of the following are differences between AppArmor and SELinux? (Choose TWO correct answers).
  1. AppArmor is implemented in user space only. SELinux is a Linux Kernel Module.
  2. AppArmor is less complex and easier to configure than SELinux.
  3. AppArmor neither requires nor allows any specific configuration. SELinux must always be manually configured.
  4. SELinux stores information in extended file attributes. AppArmor does not maintain file specific information and states.
  5. The SELinux configuration is loaded at boot time and cannot be changed later on. AppArmor provides user space tools to change its behavior.
Correct answer: BD
Explanation:
http://elinux.org/images/3/39/SecureOS_nakamura.pdf
http://elinux.org/images/3/39/SecureOS_nakamura.pdf
Question 10
Linux Extended File Attributes are organized in namespaces. Which of the following names correspond to existing attribute namespaces? (Choose THREE correct answers.)
  1. default
  2. system
  3. owner
  4. trusted
  5. user
Correct answer: BDE
Explanation:
https://en.wikipedia.org/wiki/Extended_file_attributes
https://en.wikipedia.org/wiki/Extended_file_attributes
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