Vocabulary and questions about Google data center

QUESTIONS: 

In today's activity, you have to watch this 7-minute video about security on Google Data Centers. Follow these suggestions:

the use of subtitles are strongly recommended.

write down all the words that you don't understand.

go slowly, trying to understand each sentence and the overall meaning of the speech.

Once you have carefully watched the video, the following set of questions: 

1) What are the main security measures showed by the video when accessing the building?

·         Restricted barrier for vehicle access

·         Security fencing around the perimeter

·         Security personal 24h/7w

·         Monitoring cameras

2) What is the security technology related to "sight" that Google uses for accessing the core part of the facility?

Biometric devices and badges.

3) According to the video, what type of device is indispensable to Google's usual day-to-day activity?

Hard drives

4) What two actions do Google's technicians do when a hard drive fails?

It’s reformatted, retested and overwritten

5) What two actions do Google's technicians do when those hard drive that have ended their "life cycle"?

Google have a crusher for making hard drives unreadable and a shredder for complete this process.

6) How does Google manages to have permanent connectivity to the internet backbone?, what is the concept that is referred to in the video?

Google have his data centers connected via high speed fiber-optic cable with redundant connections to fix a single connection down.

7) How does Google manages to guarantee the safety of stored data?

Google maintains an extra backup and robust fire detections and suppression capabilities.

8) How does Google manages to guarantee the continuous power supply?

Using emergency backup generators

9) What does Google want specifically to check by using video cameras?

It wants to detect anomalies such as potential intruders

10) What kind of "raw material" is Google committed not to use?

Carbon

Vocabulary:

Comprehensive: exhaustivo

Roster: lista

Measures: medidas

Shredder: trituradora

Crusher: machacador

Badge: Tarjeta