Chapter 4 Hardware Quiz
Which of the following statements is NOT true about mainframe computer?
A single computer with a single user is typical of a mainframe computer
____ is the use of a collection of computers, often owned by many people or different organizations, to work in a coordinated manner to solve a common problem
Grid computing
In the data center for Mack's company, one server is dedicated to each application. In contrast, the data center for Jack's company used virtualized servers. Which statement would you expect to be true?
Jack's company pays less for software licenses.
____ are used to grade standardized tests, including SAT and GMAt tests, and to record votes in elections.
Optical mark recognition (OMR) systems
The class of computer systems used by multiple concurrent users offers businesses the potential to increase their processing capability to handle more users, more data, or more transactions in a given period, which is known as ___
Scalability
___ are the most powerful computers with the fastest processing speed and highest performance.
Supercomputers
3D printing is ___
Used to make solid objects from filaments or powder
_____ are used to support engineering and technical users to perform heavy mathematical computing, computer-assisted design (CAD), video editing, and other applications requiring a high-end processor.
Workstations
A tier 1 or tier 2 data center would be most appropriate for an organization with which characteristic?
capable of conducting critical operations manually
A ____ is a climate- and access-controlled building or a set of buildings that house the computer hardware that delivers an organization's data and information services.
data center
A tier 3 or 4 data center would be most necessary for an organization with which characteristic?
dependent on computers to manage manufacturing operations
What criteria are used by the Uptime Institute to classify data centers into four tiers?
expected annual downtime, fault tolerance, and power outage protection.
___ is an approach concerned with the efficient and environmentally responsible design, manufacture, operation, and disposal of IS-related products.
green computing
The component of a computer that provides the CPU with a working storage area for program instructions and data is called the
main memory
A type of memory whose contents are not lost if the power is turned off or interrupted is said to be
nonvolatile
When choosing from various types of flat-panel displays, choose a ___ for the lowest power consumption.
organic light-emitting diode (OLED) display
Completed an instruction involves two phases- instruction and execution- which are each broken down into two steps for a total of four steps. Which of the following is NOT one of the four steps?
process data
CPU clock speed is the predetermined rate at which the processor ___
produces a series of electronic pulses
The set of instructions that signal the CPU to perform circuit-switching operations is known as
program code
Because electronic devices are composed of material such as beryllium, cadmium, lead, mercury, BFRs, selenium, and polyvinyl chloride, one of the three goals of green computing is to
reduce the use of hazardous material
Which goals of green computing, if implemented successfully, would be the BEST practice for reducing the hazards posed by e-waste in the United States?
reduce the use of hazardous material
Hardware utilization can be improved by logically dividing the resources of a single physical server to create multiple logical servers. This approach is known as ___.
server virtualization
Which class of general-purpose computer systems is the least expensive option that meets a wide range of personal computing needs, from data entry to computer-aided design or engineering, and from accessing Internet applications to software development?
single-user nonportable computer
Traditional data centers require huge amounts of energy because __
they constantly run powerful air-conditioning systems
A ___ is a low-cost, centrally managed computer with limited capabilities and no internal or external attacked drives for data storage.
thin client
Which type of data center offers the highest and most predictable level of performance through redundant hardware, power-related devices, and alternate power sources?
tier 4
