JK0-U31 Real Exam Prep DEMO

Question 9: Which of the following is an international standard for energy efficient consumer products?
A. Energy Star rating
B. Standby mode
C. Trusted Computer System Evaluation Criteria (TCSEC)
D. Advanced Configuration and Power Interface (ACPI)
Correct Answer: A
Explanation:
Energy Star rating is an international standard for energy efficient consumer products. The Energy
Star rating is an international standard for energy efficient consumer products. Devices carrying
the Energy Star logo are products, such as computer devices, peripherals, kitchen appliances, etc.
These products generally use 20% to 30% lesser energy than required by the federal standards. The
Energy Star program was created by the 'United
States Environmental Protection Agency' (US EPA) as an attempt to reduce energy consumption and
greenhouse gas emission by power plants. The program has helped in spreading the use of LED
traffic lights, efficient fluorescent lighting, and power management systems for office equipments.
Answer option C is incorrect. Trusted Computer System Evaluation Criteria (TCSEC), frequently
referred to as the Orange Book, is the centerpiece of the DoD Rainbow Series publications. It is a
United States Government Department of Defense (DoD) standard that sets basic requirements for
assessing the effectiveness of computer security controls built into a computer system. TCSEC was
used to evaluate, classify and select computer systems being considered for the processing, storage
and retrieval of sensitive or classified information.
It was replaced with the development of the Common Criteria international standard originally
published in 2005. Answer option B is incorrect. The standby mode is a power saving feature for
computers. In this mode, a computer does not shut down completely. The computer goes to low
power state and, as a result, it consumes less power. When the computer resumes from the standby
mode, full power is restored to its devices. During the standby mode, if the power supply is
disconnected or interrupted, data might be lost. The standby mode is available automatically on
ACPI-enabled or APM-enabled computers. Users do not need to enable this mode manually. This
mode is not available in non-ACPI and non-APM based computers. Answer option D is incorrect. The
Advanced Configuration and Power Interface (ACPI) is a power- management specification
developed by Intel, Microsoft, and Toshiba. It enables an operating system to control the amount of
power supplied to each device attached to a computer by turning off peripheral devices when they
are not in use. It defines power management on a wide range of mobile,
desktop, and server computers and peripherals. It also enables manuurers to produce computers
that automatically power up as soon as a user touches the keyboard.
Reference: "http.//en.wikipedia.org/wiki/Energy_Star"