Explain why it is necessary to have procedures in place to back up and restore a database.
What will be an ideal response?
A database can become damaged or destroyed as a result of a variety of problems: users can enter incorrect data, programs that update the database can end abnormally during an update, a hardware problem can occur, and so on. After any such event has occurred, the database might contain invalid data, or even be totally destroyed.
When data has been damaged or destroyed you must have a process to return the database to its correct state. This is called recovery. The simplest approach to recovery is to periodically make a copy of the database. This is called a back up copy. If a problem occurs you copy the backup database copy over the damaged database.
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As mentioned at the beginning of the chapter, a browser stores the current URL on a stack when you follow a new link. When you press the “Back” button, the most recently visited URL is popped from the stack and reloaded into the browser. Can the “Forward” button also use a stack? Try this out and draw a diagram illustrating what happens when you use the forward and back buttons.
What will be an ideal response?
What is Progressive enhancement?
What will be an ideal response?
"Kaizen" is the Japanese word for _________.?
Fill in the blank(s) with the appropriate word(s).
A user get an error message that trust relation to the domain has been broken. Which of the following can be done to resolve this from the client desktop
a. Re-join the computer to the domain b. Reboot the PC as the domain will automatically rebuild the relationship c. Update the BIOS using the latest version d. Run CHKDSK