Rack Fundamentals course MCQ

The Open Frame Rack comes in two basic types: Two Post and Four Post.

True

False

Significant disadvantages of open frame racks are:

They do not provide physical security/ protection

The equipment is exposed

They do not allow for optimized airflow in densely packed or high-heat-producing configurations.

All of the above

The most common problems that pose a challenge to optimizing availability are:

Inadequate airflow to IT equipment

Inadequate power redundancy to the rack

Lack of physical security

Non-compliance with seismic requirements

All of the above

Blanking Panels are:

Covers that are placed over empty rack spaces

Air Distribution Units

Devices that cool air entering a rack

Cable management devices

The Electronics Industries Association (EIA) established the EIA-310 standard to ensure physical compatibility between racks, enclosures, and rack mounted equipment

True

False

Because the cage nut _______in it's mount, the nut has some freedom to move, which makes nut and bolt alignment easier.

is fixed

"floats"

is threaded

Seismic, wall mount and networking are all types of:

Disasters

Enclosures

Servers

Frames

An ADU mounts at the bottom ____ of any EIA-310 19 inch rack that has an open base.

4U

2U

5U

8U

The ________ defines important dimensions for racks, enclosures and rack mounted equipment.

19 inch Standard

EIA-310

Four Post Frame

Cooling

Enclosures should be universal, _________, organized and scalable.

modular

neat

19 inch Standard

5U

Link to Course

Summary of Rack Fundamentals course

This course has covered Rack Standards, Rack Types, and Rack Enclosures, Best Practices for Rack System Selection, and Physical Considerations for Rack Layout. Major points to remember include:

• How racks are selected and configured has a profound and lasting impact on a data center’s availability, agility, and total cost of ownership 
• Enclosures enhance rack system cooling by preventing hot and cold air from mixing 
• Enclosures should be universal, modular, organized, and scalable 
• Racks should be arranged to form alternating hot and cold aisles