What is the minimum number of disks required in a RAID5 array?
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 flexibility, is:
A. Use just LVM
B. Use RAID1 over LVM
C. Use LVM over RAID5
D. Use LVM over RAID1
E. Use RAID5 over LVM
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, pvcreate, mount, mke2fs
D. mke2fs, pvcreate, vgcreate, lvcreate, mount
E. pvcreate, lvcreate, vgcreate, mount, mke2fs
What is the usable disk space of a RAID 5 array of five 18GB drives with one drive dedicated as a spare?
You decide to use the logical volume manager (LVM) to manage four 4GB disk drives. After creating the volume group, how would you create a 10GB logical volume called big-app?
A. vgcreate -p 10g -n /dev/vg01/big-app
B. vgcreate -l 2560 /dev/vg01/big-app
C. mklvm -v 10240 -n /dev/vg01/big-app
D. lvcreate -v 10240 /dev/vg01/big-app
E. lvcreate -l 2560 vg01 -n big-app
What is the purpose of vgextend?
A. Extend a volume group’s footprint on disk
B. Add physical volumes to a volume group
C. Increase the number of days between scheduled error checking
D. Create a volume group which uses all available space on disk
Which RAID level provides the most redundancy?
Which pseudo-file contains information on the status of software RAID devices?
What information does the file modules.dep provide?
A. A list of all modules available to the kernel.
B. A list of modules required by each module.
C. A list of devices and their module name.
D. A list of modules compiled for this kernel.
E. A list of modules the kernel needs to run.
Before compiling a new kernel, what needs to be done?
A. Compile kernel modules
B. Configure the kernel options
C. Delete old kernel sources
D. Change to runlevel 1
E. All of the above
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