In a computer system, these records that are logically contiguous in one applications must be physically stored together.

A utility program that makes copies of files to be used in case the originals are lost or damaged.

Coding in computer security makes data be unintelligible to the outside observer.

A centralized database system can be highly responsive to differences in data gathering, storage, and access.

computer security的中文释义为（）

With hundreds of millions of electronic (11)taking place daily, businesses and organizations have a strong incentive to protect the. (12) of the data exchanged in this manner, and to positively ensure the (13) of those involved in the transactions. This has led to an industry-wide quest for better, more secure methods for controlling IT operations,and for deploying strong security mechanisms deeply and broadly throughout networked infrastructures and client devices. One of the more successful concepts to engage the imaginations of the security community has been the development of standards-based security(14) that can be incorporated in the hardware design of client computers. The principle of encapsulating core security capabilities in (15) and integrating security provisions at the deepest levels of the machine operation has significant benefits for both users and those responsible for securing IT operations.

With hundreds of millions of electronic (11)taking place daily, businesses and organizations have a strong incentive to protect the. (12) of the data exchanged in this manner, and to positively ensure the (13) of those involved in the transactions. This has led to an industry-wide quest for better, more secure methods for controlling IT operations,and for deploying strong security mechanisms deeply and broadly throughout networked infrastructures and client devices. One of the more successful concepts to engage the imaginations of the security community has been the development of standards-based security(14) that can be incorporated in the hardware design of client computers. The principle of encapsulating core security capabilities in (15) and integrating security provisions at the deepest levels of the machine operation has significant benefits for both users and those responsible for securing IT operations.

You are the domain administrator for TestKing's Active Directory domain named All client computers run Windows XP Professional.
You need to implement a solution for managing security updates on client computers. You plan to use a Windows Server 2003 computer to manage security updates. Your solution for managing security updates must meet the following requirements:
1. You must not purchase additional software or licences.
2. Security updates must be installed automatically.
3. You must be able to control which updates are available to install.
4. Security updates must synchronize automatically with the latest updates offered by Microsoft.
You need to implement a solution for managing security updates that meets the requirements.
What should you do?（）

You install a custom application on a computer that runs Microsoft Windows XP. The application stores each user’s data in the %programfiles%\app1\data folder on the computer. You install the custom application on a computer that runs Windows Vista.
On the Windows Vista computer, you back up the %programfiles%\app1\data folder and notice that the backup contains no data.
You need to back up the application’s user data on the Windows Vista computer.
What should you do?（）