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Certpedia: Terms That Start With Q |
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QoS (Quality of Service) - A communications networks transport a multitude of applications and data, including high-quality video and delay-sensitive data such as real-time voice. The bandwidth-intensive applications stretch network capabilities and resources, but also complement, add value, and enhance every business process. Networks must provide secure, predictable, measurable, and sometimes guaranteed services. Achieving the required Quality of Service (QoS) by managing the delay, delay variation (jitter), bandwidth, and packet loss parameters on a network becomes the secret to a successful end-to-end business solution. Thus, QoS is the set of techniques to manage network resources.
Queue - In printing, documents sent to a printer are ripped by the driver and then placed in a holding space called the print queue. Documents are pulled out of the queue as the printer becomes available. By default this occurs on a "first in, first out" (FIFO) basis, although most operating systems offer the ability to control the priority of the print jobs. The service that the print queue provides is also referred to as print spooling.
 QWERTY - Pronounced "kwerty", QWERTY refers to the first 6 letters in the upper left corner of an English-language keyboard. This keyboard layout was developed by Christopher Sholes in 1868. The keys were layed out in this manner to increase productivity.
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