COMPTIA A+ Practice Exam

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Ace your COMPTIA A+ certification with our practice exam. Engage with a variety of questions including multiple choice and performance-based, complete with hints and detailed explanations. Prepare effectively and boost your confidence for the big day!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What does QOS stand for?

Quality Over Security
Quick Online Service
Quality of Service
Quick Operational Setup

The correct answer is: Quality of Service

QOS stands for Quality of Service which is a term used in networking and telecommunications to describe the overall performance of a service, such as internet or telephone. It refers to the ability of a network to provide a certain level of service to different types of network traffic. Option A, B, and D are incorrect because they do not accurately represent the meaning behind QOS. Instead, they provide variation of words that could potentially fit the acronym, but do not have the same context and meaning. Option A implies that quality is prioritized over security, which is not always the case. Option B suggests that QOS is delivered through an online service, but it is not limited to just online services. Option D implies a quick and efficient setup, which is not necessarily reflective of the overall performance and capability of QOS. Therefore, option C is the only correct answer.