CompTIA Linux+ Guide to Linux Certification Ch. 5 Review Questions

*Character devices typically transfer data more quickly than block devices. True or False?

False

*Given the following output from /etc/fstab, which filesystems will be automatically checked on boot by the fsck command? /dev/sda1 / ext4 defaults 1 1 none /dev/pts devpts gid=5,mode=620 1 0 none /proc proc defaults 0 1 none /dev/shm tmpfs defaults 1 0 /dev/sdc2 swap swap defaults 0 1 /dev/dvd /media/dvd iso9660 noauto,ro 0 0 /dev/fd0 /media/floppy auto noauto 0 0 a. None of them, fsck must be run manually for each filesystem b. All of them, fsck is run automatically at boot for all filesystems c. /,/proc and swap d. /,/dev/pts and /dev/shm

c. /, /proc and swap

*You want to see the filesystems that are presently in use on the system. What command could you use? a. cat /etc/fstab b. ls -l /etc/fstab c. cat /etc/mtab d. ls -l /etc/fstab

c. cat /etc/mtab

Jim has just purchased two new SCSI hard disk drives and a controller card for them. He properly installs the hardware in his machine. Before he can use them for data storage and retrieval, what must he do? (Choose all that apply.) a. Mount the two hard drives so they are accessible by the operating system. b. Mount a filesystem to each of the hard disk drives. c. Create one or more partitions on each of the hard disk drives. d. Use the vi editor to edit /etc/mtab and create an entry for the controller card and the hard disk drives. e. Mount any partitions created on the two hard drives such that they are accessible by the operating system. f. Format any partitions created with a valid filesystem recognized by Linux.

?d. Use the fdisk command to create one or more partitions on each of the hard disk drives. e. mount any partitions created on the two hard drives so that they are accessible by the operating system. f. Format any partitions created with a valid filesystem recognized by Linux.

*You plug a USB flash memory drive into a system that has two SATA hard disks. How will the partition on this USB flash memory drive be identified by Linux? A. /dev/sdc1 B. /dev/sdb1 C. /dev/sda2 D. /dev/sda1

A. /dev/sdc1

*Which of the following statements is true? A. Quotas can limit both user space and the number of files a user can own B. Either a hard limit or a soft limit can be set, but not both concurrently. C. Quotas can only limit user space D. Quotas can only limit the number of files a user can own

A. Quotas can limit both user space and the number of files a user can own

*The first floppy drive on the system is not responding. You enter the file /dev/fd0 command and receive the following output. What is the problem? [root@server1 root]# file /dev/fd0 /dev/fd0: ASCII text [root@server1 root]# A. The device file has become corrupt. B. The floppy drive is seen as a character device. C. There is no floppy disk in the drive. D. The floppy drive cable has come loose. the device file has become corrupt

A. The device file has become corrupt.

*A user mounts a device to a mount point directory and realizes afterward there are files previously found within the mount point directory that are needed. What should this user do? A. Unmount the device from the directory. B. Look in the lost+found directory for the file. C. Nothing; the files are lost and cannot ever be accessed D. Run the fsck command to recover the file.

A. Unmount the device from the directory.

*Which command mounts all existing filesystems in /etc/fstab? A. mount -a B. mount /etc/fstab C. mount /etc/mtab D. mount -f

A. mount -a

*Which of the following commands can be used to create partitions on either a MBR or GPT hard disk? A. parted B. gdisk C. fdisk D. cfsck

A. parted

*What does the command dumpe2fs -h do? A. is not a valid command B. displays the number of inodes used and available in an ext2 filesystem C. backs up an ext2 filesystem D. dumps an ext2 filesystem

B. displays the number of inodes used and available in an ext2 filesystem

*Which command is used to format a partition on a hard disk drive with the ext4 filesystem? A. ext4mkfs device B. e2mkfs -t ext4 device C. makeext4FS device D. format_ext4 device

B. e2mkfs -t ext4 device

*A device file __________________ . (Choose all that apply.) A. has no size B. has no data section C. has no inode section D. displays a major and minor number in place of a file size

B. has no data section D. displays a major and minor number in place of a file size

*A user runs the fsck command with the -a option on a filesystem that is showing signs of corruption. How would that user locate any files the system was unable to repair? A. View the contents of the directory /lost+found. B. The system prompts the user for a target location when it comes across a file it cannot repair. C. Mount the filesystem and check the lost+found directory underneath the mount point. D. Look in the root of the filesystem.

C. Mount the filesystem and check the lost+found directory underneath the mount point

*What does the du /var command do? A. Displays the amount of free space in the /var directory B. Shows the users connected to the /var directory C. Shows the size of all directories within the /var directory D. Dumps the /var directory

C. Shows the size of all directories within the /var directory

*Which of the following statements regarding LVM structure is correct? A. LVs are created from the free space available within PVs B. PVs are collections of VGs C. VGs are comprised of one or more PVs D. PVs use the space within LVs to create VGs

C. VGs are composed of one or more PVs

*Which command is used to display the amount of free space that exists on a filesystem? A. fsck B. quota C. df D. du

C. df

*What must you do to successfully run the fsck command on a filesystem? A. Run the fsck command with the -u option to automatically unmount the filesystem first. B. Choose yes when warned that running fsck on a mounted filesystem can cause damage. C. Ensure that the filesystem is mounted. D. Umount the filesystem.

D. Umount the filesystem.

*After a partition on a hard disk drive is formatted with a filesystem, all partitions on that hard disk drive must use the same filesystem. True or False?

False

*The lvextend command can be used to add additional unused space within a volume group to an existing logical volume. True or False?

True