कम्प्युटर ज्ञान – Computer Knowledge MCQ
कम्प्युटर ज्ञान – IT प्रवेश
Computer Knowledge · IT Entrance – B.Sc. CSIT, BIT & BCA · ४०० प्रश्न
४०० प्रश्न उपलब्ध। मोड छान्नुहोस्:
कम्प्युटर ज्ञान: प्रश्न र उत्तर
सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ३ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।
सही: ० / ०
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The term 'RAM' stands for which of the following?
सही उत्तर: ग) C. Rapid Application Module
RAM (Random Access Memory) is a type of volatile memory that allows data to be accessed directly at any location in the address space, providing fast read and write speeds for immediate data processing which aligns with the definition.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the fundamental unit of information storage and retrieval in computers?
सही उत्तर: ख) B. Bit
A bit (Binary Digit) is the smallest unit of data, representing either a 0 or a 1. The other options represent larger units of measurement - pixels are for images, bytes are groups of bits and kilobytes are groups of bytes. This aligns with basic computer science principles.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which bitwise operation performs logical AND between two bits?
सही उत्तर: ग) C) AND
Option C is the correct answer. The AND operator returns 1 only if both input bits are 1; otherwise, it returns 0. OR, NOT and XOR perform different bitwise logical operations.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the purpose of a ‘cache’ memory?
सही उत्तर: क) A) To store infrequently accessed data for faster retrieval
Option A correctly describes the function of cache memory. It's a small, fast memory used to hold frequently accessed data, reducing access times compared to main memory (RAM). The other options describe different types of memory or their roles.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In computer networking, what does ‘bandwidth’ measure?
सही उत्तर: ख) B) The rate at which data can be transmitted over a connection
Option B is correct. Bandwidth quantifies the capacity of a transmission medium, representing the amount of data that can pass through it in a given time period (typically measured in bits per second). The other options relate to different aspects of networking.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following is a characteristic of relational databases?
सही उत्तर: ख) B) Data is accessed using SQL queries
Option B accurately describes a core feature of relational databases – the use of SQL (Structured Query Language) for accessing and manipulating data. Hierarchical storage and text-based storage are incorrect, while requiring only one primary key is not a strict rule.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the primary purpose of a firewall in a computer network?
सही उत्तर: ख) To prevent unauthorized access to a network
A firewall's main role is to protect a network by controlling incoming and outgoing traffic based on pre-defined security rules. The other options describe different functions of network devices.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A computer program designed to perform a specific task repeatedly is called an ______.
सही उत्तर: ख) Software
Software refers to the set of instructions that tells a computer what to do. An algorithm is a step-by-step procedure, an operating system manages hardware and applications, and a database is structured data storage.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In CPU scheduling, which algorithm ensures that each process gets a fair share of the CPU time?
सही उत्तर: ग) Round Robin
The Round Robin algorithm assigns a fixed time quantum to each process. This ensures fairness by rotating processes through the CPU in equal intervals, preventing any single process from monopolizing the processor. The other algorithms have different objectives.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The primary purpose of normalization in database design is to:
सही उत्तर: ग) Improve data integrity and reduce storage space
Database normalization aims to eliminate redundancy and improve data integrity by organizing data into tables based on relationships. Options 1, 3, and 4 describe undesirable outcomes or incorrect goals.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
यी अभ्यास प्रश्न हुन्, आधिकारिक प्रश्न होइनन्। पाठ्यक्रम, विज्ञापन र नतिजाका लागि सम्बन्धित निकायको आधिकारिक वेबसाइट हेर्नुहोस्। उत्तरमा गल्ती भेटे प्रश्नमुनिको "टिप्पणी / गल्ती रिपोर्ट" मा लेख्नुहोस्।
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