An LVM snapshot named db_snapshot was created for the logical volume
/dev/vg_data/lv_database. After testing, the logical volume needs to be reverted to the state captured in the snapshot. Which command should be used?

• A.lvrollback /dev/vg_data/db_snapshot
• B.lvrestore /dev/vg_data/db_snapshot /dev/vg_data/lv_database
• C.lvconvert --merge /dev/vg_data/db_snapshot
• D.lvreplace /dev/vg_data/db_snapshot /dev/vg_data/lv_database

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Which command changes both the owner and the group of the file app.conf to the user deploy and the group www-data?

• A.chmod deploy:www-data app.conf
• B.chown deploy:www-data app.conf
• C.chgrp deploy app.conf
• D.usermod -g www-data app.conf

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Which command is used to display the current SELinux status on a Linux system?

• A.firewall-cmd
• B.sestatus
• C.systemctl
• D.sudo

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What is the most appropriate permission model for a backup client writing to a remote back up storage to help ensure backups are protected from unauthorized modification or deletion?

• A.Read-only permissions
• B.No permissions
• C.Read and write permissions
• D.Write-Once, Read-Many permissions

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Encryption that uses both a private key and public key is known as what?

• A.Key Pair Encryption (symmetric cryptography)
• B.Public Key Cryptography (asymmetric cryptography)
• C.HMAC Cryptography (hash based message authentication]
• D.DPE (dual-phased hybrid encryption]

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