What is the usable disk space of a RAID 5 array of five 18GB drives with one drive dedicated as a spare? A. 18GB B. 36GB C. 54GB D. 72GB E. 90GB

The correct command sequence to create logical volumes on a Linux system is: A. lvcreate, pvcreate, vgcreate, mount, mke2fs B. pvcreate, vgcreate, lvcreate, mke2fs, mount C. vgcreate, lvcreate, pvcre...

A server has three disks of 80GB each and must manage a database with 4 million records of 30KB each. The best configuration for this server, with the criteria being performance, configurability and f...

What is the minimum number of disks required in a RAID5 array? A. 1 B. 2 C. 3 D. 4 E. 5

Which of the following commands connects to the remote host example.com which has OpenSSH listening on TCP port 2222? (Choose TWO correct answers.) A. ssh --port 2222 example.com B. ssh -p 2222 examp...

On a Linux system with shadow passwords enabled, which file in the file system contains the password hashes of all local users? (Specify the full name of the file, including path.)

Which of the following commands can be used to limit the amount of memory a user may use? A. umask B. usermod C. ulimit D. passwd E. chage

What is a purpose of an SSH host key? A. It must be sent by any SSH client in addition to a user key in order to identify the client's host. B. It provides the server's identity information to connec...

Which of the following commands preloads and manages keys that are used for automatic authentication while logging in to other machines using SSH? A. sshd B. ssh-agent C. ssh-keygen D. ssh-add

Which file contains a set of services and hosts that will be allowed to connect to the server by going through a TCP Wrapper program such as tcpd? (Specify the full name of the file, including path.)