Data Cabling Center Update

Data centers and wireless networks are two of the largest and fastest growing fiber optic applications. Both are rapidly evolving to meet customer needs. What’s your knowledge of today’s data centers? Answers are on page 103. To take the quiz electronically, visit

1. Today, “data center” refers to _____.

Correct Answer: All of the above

2. Large hyperscale data centers are already running networks at _____ or are planning to do so soon.

Correct Answer: 100 Gbps

3. Hyperscale data centers may have more than _____fiber connections.

Correct Answer: 100,000

4. Most hyperscale networks use _____ fiber for its current capacity and future use at higher speeds.

Correct Answer: OS2 single-mode

5. Multimode fiber for network speeds above 10 Gbps have until recently required using _____.

Correct Answer: 850 nm VCSELs and parallel optics over multiple fibers

6. A new type of multimode fiber, OM5, has been introduced to allow using wavelength-division multiplexing (WDM) with 850–950 nm VCSELs.

Correct Answer: True

7. Data centers were a proving ground for the new type of product called a _____ that has become very popular everywhere.

Correct Answer: SOC—splice-on connectors

8. The large number of connections needed in large data centers has led to the introduction of cables with fiber counts as large as _____ fibers.

Correct Answer: 6,912

9. Installing high fiber count cables has required many installers to learn an installation technique called ribbon or mass fusion splicing.

Correct Answer: True

10. Technologies that were introduced specifically for data centers that have not been widely accepted include _____.

Correct Answer: All of the above