Question 16

What word is missing from the following SQL statement?
__________ count(*) from tablename;
(Please specify the missing word using lower-case letters only.)

Question 17

Which of the following commands is used to rotate, compress, and mail system logs?
  • Question 18

    Which commands can you use to change a user's account aging information? (Choose THREE correct answers.)
  • Question 19

    How many IP addresses can be used for unique hosts inside the IPv4 subnet 192.168.2.128/26?
  • Question 20

    What is the command to delete the default gateway from the system IP routing table? (Choose TWO correct answers.)