Technology and Computing MCQs

Question 1

#1

By TheQuizWire

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Hard

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Fact Checked

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10 Mar 2026

Which principle defines the maximum theoretical data rate of a communication channel in the presence of noise for a given bandwidth?

Answer

The Shannon-Hartley theorem establishes the maximum capacity of a communication channel, accounting for both bandwidth and the signal-to-noise ratio.

Question 2

#2

By Zain

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Medium

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Fact Checked

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09 Mar 2026

Which technology’s advancement most directly necessitates the global shift toward ‘post-quantum’ cryptographic standards?

Answer

Quantum computing utilizes Shor’s algorithm to efficiently solve mathematical problems like integer factorization, which current public-key encryption (RSA and ECC) relies on for security. This threat has led to the development of quantum-resistant algorithms.

Question 3

#3

By Zain

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Hard

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Fact Checked

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08 Mar 2026

To maintain long-range context in Natural Language Processing without the sequential constraints of RNNs, which architectural component is most effective?

Answer

The self-attention mechanism, a core part of Transformer architectures, allows models to process all tokens in a sequence simultaneously, overcoming the sequential bottlenecks and vanishing gradient issues of Recurrent Neural Networks (RNNs).

Question 4

#4

By Zain

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Easy

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Fact Checked

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07 Mar 2026

What is the primary function of virtual memory in a modern operating system?

Answer

Virtual memory maps logical addresses to physical addresses, allowing the system to use secondary storage as an extension of RAM to run large applications.

Question 5

#5

By Zain

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Medium

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Fact Checked

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25 Feb 2026

What is the primary advantage of edge computing in the context of Internet of Things (IoT) infrastructure?

Answer

Edge computing minimizes the distance data must travel by processing it at or near the source, which significantly reduces latency and bandwidth usage compared to centralized cloud models.

Question 6

#6

By Zain

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Medium

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Fact Checked

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15 Feb 2026

Which characteristic primarily distinguishes Web 2.0 from the preceding Web 1.0?

Answer

Web 2.0, often called the 'participative social web,' marked a fundamental shift from static, read-only websites (Web 1.0) to dynamic, interactive platforms where the end-user actively creates, shares, and interacts with content. This is evidenced by the rise of social media, blogs, and wikis. Option A describes Web 1.0, and Option B describes the vision of Web 3.0.

Question 7

#7

By Zain

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Medium

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Fact Checked

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15 Feb 2026

What is the main advantage of a hash table (or dictionary) over an unsorted array for element lookup?

Answer

A well-implemented hash table, utilizing a good hash function, offers an average-case time complexity of O(1) for search, insertion, and deletion operations. This near-constant time performance is a significant advantage over an unsorted array, which requires O(n) time for a lookup in the average and worst cases (linear search). Option B is incorrect because the worst-case complexity for a hash table is O(n) due to collisions. Option A is incorrect as hash tables often require extra space for buckets or collision resolution. Option D is incorrect; arrays are better for sequential access.

Question 8

#8

By Zain

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Medium

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Fact Checked

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07 Feb 2026

A credit-scoring AI rejects a loan. Which ethical principle is most directly violated if no human-understandable reason is given?

Answer

Explainability (XAI) is the ethical principle and technical mechanism focused on providing clear, human-understandable reasons for specific AI decisions or outputs, such as a rejected loan application. Without this explanation, the principle is directly violated. System Transparency, in contrast, generally refers to the openness of the overall system design, data sources, and operational processes, not the justification for a single, specific decision. Data Minimization relates to privacy, and Human Oversight relates to final accountability and intervention.

Question 9

#9

By Zain

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Easy

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Fact Checked

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06 Feb 2026

Which application layer protocol primarily relies on TCP for data integrity and guaranteed delivery?

Answer

TCP (Transmission Control Protocol) is a connection-oriented protocol that provides reliable, ordered, and error-checked delivery of a stream of bytes. HTTP (Hypertext Transfer Protocol), used for web browsing, relies on this reliability to ensure web pages, images, and files are transferred completely and correctly. DNS, DHCP, and VoIP primarily utilize the faster, connectionless UDP (User Datagram Protocol), where speed and low latency are prioritized over guaranteed delivery.

Question 10

#10

By Zain

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Easy

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Fact Checked

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26 Jan 2026

Which emerging technology connects physical devices via sensors for data exchange and automation?

Answer

The Internet of Things (IoT) describes the network of physical objects embedded with sensors and software that connect and exchange data over a network, enabling remote control and automation.

Technology and Computing MCQs

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