Which vulnerability in NFSv3 is directly addressed by NFSv4's use of RPCSEC_GSS?

Weak authentication based on client-provided UID/GID

Excessive network overhead due to multiple ports

Inability to handle large files

Lack of support for file locking

A Linux administrator needs to mount a Windows file share at boot time. The share requires a username and password. The administrator wants to store the credentials securely and ensure the mount is available to all users on the system. Which approach should be used?

Add the share to /etc/fstab with the username and password directly in the options field.

Create a systemd mount unit that runs a script to mount the share after login.

Add an entry to /etc/fstab with the credentials=/etc/cifs-creds file and set the file permissions to 600.

Use the mount -t cifs command with the username and password on the command line.

Which security improvement was introduced with NFSv4 compared to NFSv3?

Mandatory use of Kerberos for all NFS mounts

Removal of the need for a separate portmapper service

Native support for strong authentication and integrity via RPCSEC_GSS

Encryption of all NFS traffic by default

LPIC-3 Security

Domain 3Objective 3

327.3 Network File Systems (weight: 3) LPIC-3-SECURITY Practice Questions (Page 6)

Part of the Topic 327: Access Control domain, which makes up ~19% of our current practice bank. Linux Professional Institute does not publish an official question count, but from its 90-minute exam (~35–60 total, ~7–11 in this domain), expect 2–4 from this objective — we provide 30 practice questions to prepare you well beyond it. (estimate)

30questions here

6free pages

10concepts

Questions 26–30

26foundation · easy
Which vulnerability in NFSv3 is directly addressed by NFSv4's use of RPCSEC_GSS?
Select an answer first
27foundation · easy
Which package provides the mount.cifs helper program?
Select an answer first
28application · medium
A Linux administrator needs to mount a Windows file share at boot time. The share requires a username and password. The administrator wants to store the credentials securely and ensure the mount is available to all users on the system. Which approach should be used?
Select an answer first
29foundation · easy
Which command is used to manage NFSv4 ACLs on a Linux client?
Select an answer first
30foundation · easy
Which security improvement was introduced with NFSv4 compared to NFSv3?
Select an answer first

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327.3 Network File Systems (weight: 3) LPIC-3-SECURITY Practice Questions (Page 6)

Questions 26–30

Which vulnerability in NFSv3 is directly addressed by NFSv4's use of RPCSEC_GSS?

Which package provides the mount.cifs helper program?

A Linux administrator needs to mount a Windows file share at boot time. The share requires a username and password. The administrator wants to store the credentials securely and ensure the mount is available to all users on the system. Which approach should be used?

Which command is used to manage NFSv4 ACLs on a Linux client?

Which security improvement was introduced with NFSv4 compared to NFSv3?

Keep studying — Topic 327: Access Control