Understanding Data Centers and Energy Efficiency

The video discusses the significant role of the internet in data generation and storage, emphasizing the energy consumption involved. It explains how data centers manage this data and the challenges they face in terms of energy efficiency. The video explores strategies to improve energy efficiency, such as hot and cold aisles, raising temperatures, and server virtualization. These methods can significantly reduce energy costs and consumption, making the internet more sustainable.

What is the primary function of data centers?

• To manufacture computer hardware

• To store and retrieve data

• To generate electricity

• To provide internet access

How much of the world's energy did the internet use in 2011?

• 1%

• 10%

• 2%

• 5%

What is one of the main challenges faced by data centers?

• Lack of storage space

• High energy consumption

• Insufficient internet speed

• Limited server capacity

Why are some servers referred to as 'zombie servers'?

• They are used for backup only

• They are located in remote areas

• They consume energy without transferring data

• They are outdated

What is a significant benefit of data centers sharing resources?

• Increased data security

• Reduced energy consumption

• Faster data retrieval

• Lower internet costs

What is the predicted energy consumption of data centers in 2020?

• 140 billion kilowatt-hours

• 91 billion kilowatt-hours

• 120 billion kilowatt-hours

• 160 billion kilowatt-hours

What is the purpose of arranging servers in hot and cold aisles?

• To reduce cooling energy consumption

• To increase data storage

• To enhance server security

• To improve internet speed

How much energy cost reduction can be achieved by raising the temperature in data centers?

• 10% per degree

• 1% per degree

• 3% per degree

• 5% per half degree

What is server virtualization?

• Increasing the physical size of servers

• Combining multiple servers into one machine

• Reducing the number of servers

• Enhancing server speed

What percentage of energy costs can virtualization save?

• 30% to 60%

• 10% to 40%

• 5% to 15%

• 20% to 50%