A technician is working on a Linux server. The customer has reported that files in the home directory are missing. The /etc/ f stab file has the following entry:
nfsserver:/home /home nfs defaults 0 0
However, a df -h /home command returns the following information:
/dev/sda2 10G 1G 9G 10% /home
Which of the following should the technician attempt FIRST to resolve the issue?

1. A. mkdir /home
2. B. umount nfsserver:/home
3. C. rmdir nfsserver:/home/dev/sda2
4. D. mount /home

Correct Answer: B
The /etc/fstab file contains the information about the file systems that are mounted automatically at boot time or on demand. The entry nfsserver:/home /home nfs defaults 0 0 indicates that the /home directory on the local server is mounted from the /home directory on a remote server called nfsserver using the NFS protocol. However, the df -h /home command shows that the /home directory is actually mounted from a local partition /dev/sda2, which may not contain the user’s files. This means that the NFS mount failed or was overridden by another mount. To resolve the issue, the technician should attempt to unmount the local partition using umount nfsserver:/home, which will detach the /home directory from /dev/sda2. Then, the technician should try to mount the NFS share again using mount /home, which will attach the /home directory to nfsserver:/home according to the /etc/fstab entry12. Creating a new directory (A) or removing an existing one © would not help, as they would not affect the mount point. Mounting /home (D) without unmounting it first would not work, asit would result in an error that the mount point is busy3. References: 1 https://askubuntu.com/questions/374870/home-directory-not-
being-created 2 https://www.techrepublic.com/article/how-to-properly-automount-a-drive-in-
ubuntu-linux/ 3 https://serverfault.com/questions/587855/cannot-find-home-directory-on- linux-server

A technician is creating a network snare that will be used across both Unix and Windows clients at the same time. Users need read and write access to the files. Which of the following would be BEST for the technician to deploy?

1. A. iSCSI
2. B. CIFS
3. C. HTTPS
4. D. DAS

Correct Answer: B
CIFS (Common Internet File System) is a protocol that allows file sharing across different operating systems, such as Unix and Windows. It supports read and write access to files and folders on a network share. It is also known as SMB (Server Message Block). Verified References: [CIFS], [File sharing]

An organization is donating its outdated server equipment to a local charity. Which of the following describes what the organization should do BEFORE donating the equipment?

1. A. Remove all the data from the server drives using the least destructive method.
2. B. Repurpose and recycle any usable server components.
3. C. Remove all the components from the server.
4. D. Review all company polices.

Correct Answer: D
Before donating the outdated server equipment to a local charity, the organization should review all company policies regarding data security, asset disposal, and social responsibility. This can help ensure that the donation complies with the legal and ethical standards of the organization and does not pose any risk to its reputation or operations. Verified References: [Data security], [Asset disposal], [Social responsibility]

The HIDS logs on a server indicate a significant number of unauthorized access attempts via USB devices at startup. Which of the following steps should a server administrator take to BEST secure the server without limiting functionality?

1. A. Set a BIOS/UEFI password on the server.
2. B. Change the boot order on the server and restrict console acces
3. C. Configure the host OS to deny login attempts via USB.
4. D. Disable all the USB ports on the server.

Correct Answer: B
Changing the boot order on the server and restricting console access would prevent unauthorized access attempts via USB devices at startup, as the server would not boot from any external media and only authorized users could access the console. Setting a BIOS/UEFI password on the server would also help, but it could be bypassed by resetting the CMOS battery or using a backdoor password. Configuring the host OS to deny login attempts via USB would not prevent booting from a malicious USB device that could compromise the system before the OS loads. Disabling all the USB ports on the server would limit functionality, as some peripherals or devices may need to use them. References:
✑ https://www.pcmag.com/how-to/dont-plug-it-in-how-to-prevent-a-usb-attack
✑ https://www.techopedia.com/definition/10362/boot-order
✑ https://www.techopedia.com/definition/10361/console-access
✑ https://www.techopedia.com/definition/102/bios-password
✑ https://www.techopedia.com/definition/10363/cmos-battery

A server administrator mounted a new hard disk on a Linux system with a mount point of
/newdisk. It was later determined that users were unable to create directories or files on the new mount point. Which of the following commands would successfully mount the drive with the required parameters?

1. A. echo /newdisk >> /etc/fstab
2. B. net use /newdisk
3. C. mount –o remount, rw /newdisk
4. D. mount –a

Correct Answer: C
The administrator should use the command mount –o remount,rw /newdisk to successfully mount the drive with the required parameters. The mount command is used to mount file systems on Linux systems. The –o option specifies options for mounting file systems. The remount option re-mounts an already mounted file system with different options. The rw option mounts a file system with read-write permissions. In this case,
/newdisk is a mount point for a new hard disk that was mounted with read-only permissions by default. To allow users to create directories or files on /newdisk, the administrator needs to re-mount /
Reference:
https://unix.stackexchange.com/QUESTION NO:s/149399/how-to-remount-as-read-write-a- specific-mount-of-device