You plan to give an on-site presentation. The external display available for your audience is a 42-inch flat panel monitor. You need to ensure that the presentation on the monitor of your computer is duplicated on the external monitor for the audience.
What should you do?（）

单项选择题You connect your computer to a multimedia projector. When you play a video, you cannot hear the audio. You n eed to ensure that the projector provides audio and video playback. What should you do?（）

A.A
B.B
C.C
D.D
E.E

单项选择题You install a third-party application on your computer. The application uses port 80 to negotiate a listening port. After establishing the listening port, the application uses dynamic ports above 6000. You need to configure Microsoft Windows Firewall to allow traffic for the application. What should you do?（）

A.A
B.B
C.C
D.D

单项选择题You share your computer with other users. You install a new Microsoft add-on to view videos on the computer. You discover that this add-on conflicts with existing add-ons that other users frequently require. You need to ensure that you are able to view videos without affecting other users. What should you do?（）

A.A
B.B
C.C
D.D

单项选择题You install Microsoft Windows Vista on a computer. You will share the computer with another user. You need to prvent the user from making unauthorized changes to the computer. What should you do?（）

A.A
B.B
C.C
D.D

单项选择题You need to remove any Microsoft Windows Internt Explorer 7 add-ons in Microsoft Windows Vista Computers that do not have prior approval from the following authorities: Microsoft System manufacturer Service provider What should you do?（）

A.A
B.B
C.C
D.D