Computer — All MCQs
4795 questions available
Q3441.Which method ensures the secure transfer of a customer's money?
Correct Answer: A
Robust cryptographic encryption is the primary security method that secures online banking transactions and transfers.
Q3442.Humanoid robot is an example of which computer generation?
Correct Answer: B
Fifth-generation computing represents advanced research into AI, natural language processing, parallel processing systems, and robotics (such as humanoid robots).
Q3443.What was the reason for the availability of low-cost computers during the third generation of computers?
Correct Answer: B
The development of Integrated Circuits (ICs) allowed engineers to fit hundreds of transistors onto a single silicon chip, drastically reducing computer size, power consumption, and production costs during the third generation (1964-1971).
Q3444.DEC VAX and IBM AS/400 are good examples of ______?
Correct Answer: A
DEC VAX and IBM AS/400 are classic multi-user minicomputers, which were mid-sized machines more powerful than microcomputers but smaller than mainframes.
Q3445.To read information from cheques, banks mostly use ______?
Correct Answer: B
Magnetic Ink Character Recognition (MICR) is an input technology utilized by banks to securely read, verify, and clear cheques printed with magnetic inks.
Q3446.Which protocol is used in BUS topology?
Correct Answer: A
CSMA/CD (Carrier Sense Multiple Access with Collision Detection) is the media access control protocol used in shared-bus topologies to manage data collisions.
Q3447.The access of media is in which sub-layer of the OSI model?
Correct Answer: B
Media access control resides in the MAC sub-layer, which is the lower sub-layer of the OSI model's Data Link Layer (Layer 2).
Q3448.Which of the following device is used to connect similar LAN with same protocols?
Correct Answer: C
A network Bridge is used to connect two similar local area networks (LANs) that utilize identical network protocols to filter and segment traffic.
Q3449.Which of following item is not usually in Local Area Network (LAN)?
Correct Answer: B
Standard local area networks (LANs) connect computers directly using cables and network interface cards (NICs); a modem (used for wide-area connection to ISPs) is not a basic requirement of a local network loop.
Q3450.A complete microcomputer system consists of _____?
Correct Answer: D
A complete microcomputer incorporates a processing core (microprocessor), primary memory (RAM/ROM), and peripheral devices (keyboard, mouse, monitor).
Q3451.Where does a computer add and compare data?
Correct Answer: B
Computational addition and logical data comparisons are executed within the CPU chip, primarily inside the Arithmetic Logic Unit (ALU).
Q3452.What is the control unit's function in the CPU?
Correct Answer: C
The Control Unit (CU) fetches, decodes, and translates program instructions from memory, orchestrating execution across other CPU registers and units.
Q3453.Processors of all computers, whether micro, mini or mainframe must have _____?
Correct Answer: D
Every functional computer processor architecture must contain a Control Unit (to direct flow), an ALU (for calculations), and access to primary storage (RAM) to hold active data.
Q3454.Which of the following is NOT a function of Operating System?
Correct Answer: A
Virus protection is typically handled by third-party antivirus software, whereas scheduling, memory, disk, and application management are core OS functions.
Q3455.Which of the following is web browser (s)?
Correct Answer: D
Apple Safari, Microsoft Internet Explorer, and Opera are all valid web browsers used to navigate and view web content.
Q3456.In MS Excel, inside a workbook are sheets called _____?
Correct Answer: A
An Excel workbook is a file containing multiple individual sheets, which are referred to as worksheets.
Q3457.How do you open the Header and Footer toolbar in MS Word?
Correct Answer: A
In modern versions of Microsoft Word, the Header and Footer editing tools are opened via the Insert tab on the Ribbon.
Q3458.______ is responsible for converting data into information.
Correct Answer: A
The CPU (Processor) executes instructions to process raw, unorganized facts (data) and convert them into meaningful, structured information.
Q3459.Antivirus, WinZip, WinRAR and disk defragmenter are the examples of ________?
Correct Answer: C
Utility programs are system software components designed to analyze, configure, optimize, or maintain a computer system, such as backup, compression, or defragmentation tools.
Q3460.Which one of the following is the bridge between the user and hardware. It is also called the Resource Manager?
Correct Answer: A
The Operating System (OS) is the intermediary interface between user software and hardware, acting as a resource manager to coordinate hardware allocations (CPU, memory, files).