DU0-001 Online Practice Questions and Answers

Requiring frequent password changes can compromise security because _____.

A. Users tend to write down frequently changed passwords

B. It makes the password database an easier target for hackers

C. It makes it harder for legitimate users to access their own data

D. It burdens the IT help desk with requests for forgotten or expired passwords

Which cooling architecture attempts to eliminate hot spots within the data center by utilizing large volumes of air mixing throughout the space?

A. Row

B. Rack

C. Room

D. Ceiling

Which data center network-critical physical infrastructure (NCPI) component has the ability to control relative humidity?

A. Rack enclosure

B. Fire suppression system

C. Uninterruptible power supply (UPS)

D. Computer room air conditioner (CRAC)

To formulate proper cooling patterns in data centers, how should racks be arranged?

A. Alternating hot and cold aisles

B. Organizing individual rows by application

C. Placing hot spots in the corners of the room

D. Segmenting hot aisles in one room and cold aisles in another

Which suppression system is most common in existing data centers?"

A. Water sprinkler system

B. Halon total flooding system

C. Carbon dioxide total flooding system

D. Water mist mercury switch sensor system

Which standard was written for the protection of computer or data processing equipment?

A. NFPA 71

B. NFPA 72

C. NFPA 74

D. NFPA 75

What makes network-critical physical infrastructure (NCPI) management different from traditional building management systems?

A. Availability of safety resources

B. Safety of the people in the building

C. Availability of computing resources

D. Comfort of the people in the building

What is an indirect cost of downtime that is difficult to quantify?

A. Legal fees

B. Lost revenues

C. Idle employees

D. Damaged brand perception

What is the definition of reliability?

A. The fraction of time a system is unable to perform its intended function.

B. The likelihood that a system failure will occur for a specified time range.

C. The ability of a system to perform its required functions for a specified period of time.

D. The degree to which a system is accessible when required for use at an instant in time.

What is the primary feature of a smart card?

A. A picture

B. A bar code

C. A silicon chip

D. An expiration date