M2Q12: Racks and Power

Question 1

Power redundancy is important for maintaining network devices and equipment uptime during the time of power failures or interruptions. Which of the following provides a form of temporary power redundancy through battery backup units that are installed in equipment rooms and equipment racks?

A. Generators
B. UPS
C. Rack Monitoring
D. Converters

Answer 1

B. UPS

Explanation: UPS (Uninterruptable Power Supply) units are battery backup devices that can range from small home units to rack mountable units, to complete rack systems that provide power battery backup for an entire data center.

Question 2

To make things easy to identify its best to develop naming and labeling conventions for identifying and labeling which of the following? (choose all that apply)

A. Cables and ports
B. Circuits
C. Patch Panels
D. Hardware

Answer 2

ALL - A. (Ports and cables), B. (Circuits), C. (Patch Panels), D. (Hardware)

Explanation: All of the provided answers are correct as a good network team makes use of naming conventions and labeling for identifying cables and ports, circuits, patch panels, and networking hardware such as router, switches, firewalls, and servers.

Question 3

Power plugs and power connectors are always the same and no consideration must be made to ensure the proper power plugs and connectors are used.

A. True
B. False

Answer 3

B. False

Explanation: There are many types of power plugs and connectors. It is imperative to make sure you understand the style of connector used on an outlet and the type of power plug that is needed to connect to it.

Question 4

Placing network devices in the proper environment is imperative to their continuous function. Even when in the proper environment equipment racks and server rooms should still be monitored to ensure they are running at the proper temperature and humidity. In addition to the environment monitoring functions a rack monitoring device can also provide door switch monitoring and ____________________.

A. Video surveillance
B. SNMP monitoring
C. Device outage alerting
D. Battery backup

Answer 4

A. Video surveillance

Explanation: Rack monitoring systems are capable of providing all the environmental monitoring needs of an IT equipment rack even including security monitoring through video surveillance.