Blu-ray and Optical Media Quiz

What type of laser is used for Blu-ray discs?

• Yellow laser

• Green laser

• Red laser

• Blue laser

What is the storage capacity of a single-layer Blu-ray disc?

• 4.7 GB

• 27 GB

• 100 GB

• 50 GB

How much data can a dual-layer Blu-ray disc store?

• 75 GB

• 50 GB

• 100 GB

• 25 GB

What is the data transfer rate for a Blu-ray disc?

• 50 Mbps

• 10 Mbps

• 20 Mbps

• 36 Mbps

Which of the following is an advantage of Blu-ray discs?

• Slow data access

• No encryption

• High storage capacity

• Low cost

What is the main disadvantage of Blu-ray discs?

• High storage capacity

• Secure encryption

• Relatively expensive

• Fast data transfer

What is the wavelength of blue light used in Blu-ray technology?

• 780 nm

• 650 nm

• 405 nm

• 850 nm

Which technology is used in solid-state drives (SSDs)?

• CD-ROMs

• Magnetic tapes

• NAND chips

• Optical discs

What is a major benefit of using SSDs over HDDs?

• More moving parts

• Slower data transfer

• Higher weight

• Faster data access

What is the main purpose of a pen drive?

• To play music

• To store large databases

• To record high-definition movies

• To transfer files