5.3.4 Optical Media Facts

What is the primary use of an optical disc?

• To store various types of data

• To increase processing speed

• To enhance graphics quality

• To improve internet connectivity

What is the typical data transfer rate of a CD-ROM?

• 150 KBps

• 300 KBps

• 600 KBps

• 1,200 KBps

What does CD-RW stand for?

• Compact Disc Rewritable

• Compact Disc Readable

• Compact Disc Recordable

• Compact Disc Reliable

How much data can a CD typically hold with error correction?

• 737 MB

• 847 MB

• 650 MB

• 500 MB

What is the diameter of a standard CD?

• 120 millimeters

• 100 millimeters

• 150 millimeters

• 200 millimeters

What are the three parameters included in a CD-RW drive speed rating?

• Write speed, rewrite speed, and read speed

• Write speed, erase speed, and read speed

• Rewrite speed, erase speed, and write speed

• Read speed, write speed, and erase speed

What is the original speed defined by the first CD-ROM drives?

• 150 KBPs 1x speed

• 200 KBPs 1x speed

• 100 KBPs 1x speed

• 250 KBPs 1x speed

What does a red laser do in a CD-RW drive?

• It erases data on the disc

• It causes a crystal to form, creating reflective and non-reflective areas

• It reads data from the disc

• It writes data onto the disc

What happens when a high-power white laser hits the bottom of a CD-RW disc?

• It erases the disc

• It causes crystals to form

• It reads the disc

• It writes data onto the disc

What is the storage capacity of a single-sided DVD?

• 4.7 GB

• 8.5 GB

• 25 GB

• 50 GB