Linux+ Practice Quiz: XK0-004 Quiz 6

1. What will be the result of the following command?

host www.somedom.com

• The hostname of the local machine is set to www.somedom.com.
• The IP address of the computer www.somedom.com is displayed.
• The hostname www.somedom.com is entered into the /etc/hosts file.
• A remote console session is initiated with www.somedom.com.

2. Which of the following commands would allow you to see whether a remote computer is reachable?

• ip addr ping
• netstat
• ping
• ifconfig
• ipconfig

3. Which file shows the currently mounted volumes?

• /etc/mtab
• /etc/mount.conf
• /etc/fstab
• /etc/mount

4. You have an XFS file system in your Linux system represented by /dev/sdb1. You need to copy all the filenames on the drive to the /reviewxfs file. You must be able to read the filenames in the /reviewxfs file.

Which of the following commands should you use?

• xfs_metadump -o /dev/sdb1 /reviewxfs
• xfs_metadump -e /dev/sdb1 /reviewxfs
• xfs_growfs -n /dev/sdb1 /reviewxfs
• xfs_info /dev/sdb1 /reviewxfs

5. A Linux administrator is logged in as root and needs to copy a file named letter.doc from the USB flash drive mounted under /media/usb.

Which of the following commands will copy the file from the USB flash drive to the root user's home directory?

• cp /mnt/usb:letter.doc /root
• cp /media/usb/letter.doc home:
• cp /dev/usb/letter.doc /root
• cp /media/usb/letter.doc /root

6. Which of the following commands will change the file's name to reports.bak?

• touch -n /home/pmallory/reports /home/pmallory/reports.bak
• mv /home/pmallory/reports /home/pmallory/reports.bak
• cp -n /home/pmallory/reports /home/pmallory/reports.bak
• rm /home/pmallory/reports /home/pmallory/reports.bak

7. You are the only Linux administrator for a very small company. You are constantly asked to fix one problem or another as they occur. Which of the following is the BEST way to log into the system each morning?

• Log in as a regular user and then use su as needed to solve problems.
• Log in as the user who has the most problems each day so you can more quickly fix the problems.
• Log in as the root user so you can solve problems as they occur.
• Log in as a superuser in order to be able to troubleshoot problems.

8. You have logged in as a regular user when a frantic phone call comes in. The ABCD process must be started on the server now, but can only be run by root.

Which command would you use to start this process?

• sudo ABCD
• su ABCD
• ABCD /root
• exit ABCD

9. Which of the following sets of permissions represent the minimal permissions required to allow a user to list the contents of a directory?

• r--
• rw-
• r-x
• rwx

10. You have a critical file called yearend.xls. You have set the file permissions so that only the owner of the file can modify it and only group owners can read it.

Which of the following file listings show that you have set the permissions correctly?

• -rw-r----- 1 george acctg 26256 June 1 04:16 yearend.xls
• -rwxrwxr-- 1 george acctg 26256 June 1 04:16 yearend.xls
• -r-xr-x--- 1 george acctg 26256 June 1 04:16 yearend.xls
• -r--r--r-- 1 george acctg 26256 June 1 04:16 yearend.xls