Go Summarize

Google Technical Program Manager Mock Interview: Data Centers

Exponent2021-02-23
31K views|3 years ago
💫 Short Summary

The video discusses failure scenarios in data centers, including server failures and power outages, with Google's data centers experiencing hundreds of thousands of server failures daily. It also addresses reasons for downtime in software, estimating power consumption in data centers, and the challenges of answering complex interview questions. The speaker emphasizes problem-solving skills, handling ambiguity, and providing detailed and thoughtful responses in interviews for success.

✨ Highlights
📊 Transcript
Failure scenarios in data centers include component and server level failures, power outages, and backup power sources.
00:46
Google's data centers face hundreds of thousands of server failures daily, prompting a specialized team to handle problems.
Power outages may arise from grid failures, disasters, or generator malfunctions, making backup power essential.
Seasonal events such as hurricanes in the U.S. may require relocating operations to alternate data center sites for uninterrupted service.
Reasons for downtime or failures in software and configurations include lack of proper testing, changes by third-party cloud providers, and accidental policy changes by employees.
03:20
The power consumption of data centers is estimated, with details on the number of data centers globally, power consumption per server and rack, and an estimate of total power usage in a data center.
The speaker mentions 20,000 kilowatts as a potential power consumption estimate for a data center.
Google's data centers consume around 1 gigawatt of power, equivalent to the power needed to run approximately 1 million wind turbines.
05:30
The speaker believes the power consumption is justified given Google's extensive operations and scale.
The speaker is confident in their calculations but acknowledges the potential for adjustments to variables in the future.
The interviewee highlights the difficulty of the question and stresses the significance of practice and experience in acquiring the necessary skills for the role.
Key Highlights from Interview Tips:
07:36
Focus on the process and recreate the scenario to generate your answer when faced with complex interview questions.
Introduce different factors and defend your choices to showcase problem-solving skills.
Assess how you handle ambiguity as interviewers seek your ability to navigate uncertainties.
Provide detailed answers with thoughtful considerations, exploring potential changes or trade-offs in responses to demonstrate a thorough and thoughtful approach to questions.