If the openSUSE graphical installation causes problems, select ____ Mode.

Which one of the following statements is true about primary keys?

(A) A column of names is usually a good choice for use as a primary key. (B) Only a single record can be used as a primary key. (C) Social Security numbers are never used as a primary key. (D) A primary key is used to uniquely identify records in a table.

Suppose a user belongs to a group that has all permissions on a file named jobs_list, but the user, as the owner of the file, has no permissions. Describe which operations, if any, the user/owner can perform on jobs_list. Which command can the user/owner give that will grant the user/owner all permissions on the file?

What will be an ideal response?