Study HubHubPage 65/171Scan verified MCQs with the answer highlighted, then open explanations when you want the reasoning.
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Computer Hardware Components
The system unit of a personal computer typically contains all of the following except:
The system unit of a personal computer typically contains the microprocessor, disk controller, and serial interface as integral components. However, a modem is usually an external device or an expansion card, not a standard part inside the system unit.
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Data Mining Techniques
757 The ____ data mining technique derives rules from real-world case examples?
Case-based reasoning is a data mining technique that derives rules and solutions by analyzing real-world case examples, unlike neural nets which are based on pattern recognition through training data.
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Word Processing Tools
The Word Count command on the Tools menu displays the number of words as well as the number of ____ in the current document.
The Word Count command typically displays the number of words and characters in the current document, not lines or paragraphs. Therefore, the correct answer is 'characters'.
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History Of The Internet
Who invented the World Wide Web?
Tim Berners-Lee invented the World Wide Web in 1989, creating the first web browser and web server, which laid the foundation for the modern internet. The other options are notable figures in technology but did not invent the World Wide Web.
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Malware And Virus Behavior
The thing that eventually terminates a worm virus is a lack of:
A worm virus typically terminates when it runs out of resources such as memory or disk space, which are necessary for its replication and operation. Without sufficient memory or disk space, the worm cannot continue spreading or executing its payload.
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Computer Startup Process
758 The ____ is firmware that contains a computer’s startup instructions.
The BIOS (Basic Input/Output System) is firmware that contains a computer's startup instructions, initializing hardware during the booting process before handing control to the operating system.
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Data Representation
What is the unit of measurement for word length in computer architecture?
In computer architecture, the unit of measurement for word length is bits. A word is a fixed-sized group of bits processed as a unit by a computer's CPU. While bytes (8 bits) are commonly used to measure data size, word length specifically refers to the number of bits in a word, which can vary by architecture (commonly 16, 32, or 64 bits). Therefore, the correct unit for word length is bits, not bytes.
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Excel Charting
In Microsoft Excel, the term 'Chart Wizard data' refers to ____?
The term 'Chart Wizard data' in Microsoft Excel does not specifically refer to the vertical axis, horizontal axis, or bar data. It generally refers to the data selected for creating a chart. Therefore, none of the given options A, B, or C correctly define 'Chart Wizard data'.
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Computer Hardware
The term ____ designates equipment that might be added to a computer system to enhance its functionality.
A peripheral device is hardware added to a computer system to enhance its functionality, such as printers, scanners, or external drives. The other options do not specifically refer to such equipment.
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Cpu Speed Measurement
The speed of a CPU is measured in ____?
The speed of a CPU is measured in hertz, typically in megahertz (MHz) or gigahertz (GHz), depending on the processor's frequency. Both units are correct and commonly used to express CPU speed.