Immediately after deleting 3 lines of text in vi and moving the cursor to a different line, which single character command will insert the deleted content below the current line?

What is true regarding the configuration of yum? (Choose two.)

Which command is used to create and initialize the files used to store quota information? (Specify ONLY the command without any path or parameters.)

The command dbmaint & was used to run dbmaintin the background. However, dbmaintis terminated after logging out of the system. Which alternative dbmaintinvocation lets dbmaintcontinue to run even when the user running the program logs out?
job -b dmaint

Which command creates a swap space on a block device or a file? (Specify ONLY the command without any path or parameters.)