Friday, July 4, 2008

Cisco CCDA Certifications Exam 640-863

What is the ability of a single application to have multiple requests in to the
processor at one time known as?

A. Graphical user interface (GUI)
B. Source
C. Preemptive multitasking
D. Multithreading
Answer: D
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Explanation:
Multithreading is the ability of a single application to have multiple requests in to the
processor at one time which results in faster application performance, because it allows a
program to do many things at once.

Incorrect Answers:
A: The user interface is the method used to communicate with a computer. GUIs use a
mouse, touch pad, or keyboard to interact with the computer to issue commands.642-825
B: The source is the actual code that defines how a piece of software works.
C: This is a multitasking method in which the operating system allots each application a
certain amount of processor time and forcibly takes back control and gives another
application or task access to the processor.640-863

References:
David Groth and Dan Newland, A+ Complete Study Guide (Second Edition), Sybex Inc,
Alameda, CA, 2001, pp. 479