TestOut PC Pro - 5.3 Optical Media

Which Blu-ray standard defines rewritable discs?

• BD-R

• BD-R/RW

• BD-RE

• BD-ROM

Which optical media has the greatest storage capacity?

• Dual-layer, single-sided DVD

• Single-layer, single-sided Blu-ray Disc

• Compact disc

• Dual-layer, double-sided DVD

What is a disadvantage of using a DVD-R DL (Dual Layer) disc over an ordinary DVD?

• A DVD-R DL has to skip across the disc to find the next track.

• A DVD-R DL is not backwards-compatible with a regular DVD player.

• A DVD-R DL has slower write speeds.

• A DVD-R DL stores less data.

What are the fundamental differences between a DVD drive and a Blue-ray drive? (Select two.)

• Blu-ray uses a blue laser instead of a red laser.

• Blu-ray drives can read and write.

• The Blu-ray laser has a shorter wavelength, which allows data to be packed more tightly on the disc.

• Blue-ray discs are removable and can be used with other drives.

• Blue-ray drives can only handle high definition video files.

Jared has just installed an additional HDD on his Windows computer for storing multimedia files. He inserts a DVD disc to watch a movie with his usual movie player software, but the movie fails to play. In fact, the player indicates that there is no DVD drive available.

What is the BEST first step that Jared should take to resolve the issue?

• Use Device Manager to make sure the DVD drive is being recognized by the system.

• Open the case and make sure that the DVD drive is connected to the power supply.

• Make sure the movie player is pointing to the correct drive letter for the DVD drive.

• Eject the DVD disc and re-insert it to make sure the drive is reading the disc properly.

Match each label on the left with the correct characteristics on the right.

• Compact Disc (CD)

• Can be written, read many times, erased, and rewritten. It has a capacity of about 650 MB.

• Blu-ray Disc-Recordable (BD-RE)

• Uses blue laser light, which has a short wavelength, allowing data to be packed more tightly onto the disc.

• Digital Versatile Disc-ReWritable (DVD-RW)

• Single-sided discs can hold about 4.7 GB of data. Dual-layer discs can hold up to 8.5 GB of data.

• Digital Versatile Disc (DVD)

• Dual-layer version employs two recordable dye layers, each capable of storing data.

• Compact Disc-ReWritable (CD-RW)

• First developed to store digital music. Later, it was adapted to store digital computer data.

Which of the following are optical storage devices? (Select three.)

• BD

• CD

• HDD

• DVD

• SDHC

Annette has purchased a new external DVD drive to use with her PC. She inserts a DVD into the drive and, after several seconds, she receives an error message indicating that the drive is not accessible.

What is the FIRST thing Annette should do to try to resolve the issue?

• Unplug the drive from the PC and then plug the drive back in again.

• Check Device Manager to make sure that the DVD drive is listed.

• Eject the DVD from the drive and then re-insert the DVD.

• Wait a few seconds and try accessing the DVD again.

Which of the following types of Blue-ray Discs can hold up to 100 GB of data?

• Quadruple-layer

• Single-layer

• Dual-layer

• Triple-layer

Which action is recommended to minimize the effect of scratches when wiping a disc to clean it?

• Use a damp paper towel instead of a microfiber cloth.

• Use canned air specifically designed for electronics.

• Wipe the disc in straight lines from the center to the edge.

• Wipe the disc in a circular motion on the surface.