Q291. What is the fundamental concept of Cloud Computing?
Science and Technology: RAS Prelims MCQs
1113 RAS Prelims practice MCQs on science and technology are on this page, in 6 chapters. They cover the basics of everyday science, computers and information technology, defence and space technology in India, genetics, biotechnology and nanotechnology, science and technology policies and government programmes, and recent advances with Indian contributors and indigenisation. Each question has an answer and an explanation.
Practice questions based on the RPSC RAS Prelims syllabus. They follow the exam pattern but are not past-paper questions.
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Q292. Consider the following cloud computing service models:
I. SaaS (Software as a Service) delivers complete applications over the web.
II. PaaS (Platform as a Service) provides a framework for developers to build applications.
III. IaaS (Infrastructure as a Service) offers virtualized computing resources over the internet.
Which of the above statement(s) is/are correct?
I. SaaS (Software as a Service) delivers complete applications over the web.
II. PaaS (Platform as a Service) provides a framework for developers to build applications.
III. IaaS (Infrastructure as a Service) offers virtualized computing resources over the internet.
Which of the above statement(s) is/are correct?
Explanation
Cloud computing is organized into three primary service models. Software as a Service delivers ready-to-use applications over the web. Platform as a Service provides the tools and framework for developers to create software. Infrastructure as a Service offers fundamental computing resources like virtual servers and storage. Each model offers different levels of control and management, allowing organizations to choose the best fit.
Q293. Identify the incorrect statement distinguishing Public and Private clouds.
Explanation
Public clouds are owned and operated by third-party providers who deliver computing resources over the internet, sharing them among multiple customers. This model eliminates the need for organizations to buy or maintain their own hardware. In contrast, private clouds are dedicated to a single organization, often offering more control. Hybrid clouds combine these models, allowing data and applications to be shared.
Q294. The Government of Rajasthan utilizes "RajMegh" to host various e-governance applications securely while using commercial cloud services for non-sensitive public data. This architecture is an example of:
Explanation
A hybrid cloud architecture combines the benefits of both public and private clouds, allowing organizations to maintain sensitive data on a secure private infrastructure while leveraging public cloud services for less critical tasks. Rajasthan’s RajMegh system exemplifies this by hosting core e-governance applications privately while using commercial cloud services for public data. This approach optimizes security, compliance, and cost-effectiveness.
Q295. What technological concept aims to bring computation and data storage closer to the location where it is needed, to improve response times and save bandwidth, distinct from traditional centralized cloud computing?
Explanation
Edge computing is a distributed computing paradigm that brings data storage and processing closer to the devices where the data is generated, rather than relying on a centralized cloud. This proximity reduces latency and bandwidth usage, which is essential for real-time applications like autonomous vehicles or industrial automation. By processing data at the "edge" of the network, response times.
Q296. Select the correct order of cloud service models from the highest level of provider management (least user control) to the lowest level of provider management (most user control).
Explanation
Cloud service models vary by the level of management provided by the service provider. In Software as a Service, the provider manages everything from the hardware to the application. Platform as a Service gives the provider control over the underlying infrastructure while the user manages applications. Infrastructure as a Service requires the user to manage operating systems and data, offering the.
Q297. Identify the odd one out among these major Cloud Computing service providers.
Explanation
Amazon Web Services, Microsoft Azure, and Google Cloud Platform are major cloud computing providers that offer a vast array of on-demand services for infrastructure, platforms, and software. They represent the backbone of the global cloud market. Microsoft Excel, however, is a spreadsheet application used for data organization and analysis. While a version of it exists in the cloud, the.
Q298. Which core technology serves as the foundation for cloud computing, allowing multiple virtual instances to run on a single physical machine?
Explanation
Virtualization is the core technology that enables cloud computing by allowing multiple virtual machines to run on a single physical server. It creates an abstraction layer between the hardware and the software, enabling the efficient pooling and sharing of resources. This technology provides the scalability and flexibility that define cloud services, allowing providers to dynamically allocate computing power according to demand.
Q299. Which of the following is not a recognized characteristic of Cloud Computing according to standard definitions?
Explanation
Standard definitions of cloud computing emphasize key characteristics such as on-demand self-service, broad network access, and rapid elasticity. These features allow users to access and scale resources as needed without direct human interaction with the provider. Significantly, cloud computing removes the burden of mandatory localized hardware maintenance from the user, as the service provider handles all physical infrastructure management and updates.
Q300. What is a primary beneficial effect of cloud computing’s scalability for a growing startup?
Explanation
Scalability is a primary benefit of cloud computing, allowing businesses to adjust their computing resources quickly and easily to meet changing demands. For a growing startup, this means they can start with minimal infrastructure and expand dynamically as their user base grows. This "pay-as-you-go" model eliminates the need for large upfront capital investments in hardware, providing significant financial and operational.Answer key for these questions
| Q | Correct answer |
|---|---|
| 291 | (d) Internet-based computing services |
| 292 | (d) I, II, and III |
| 293 | (c) Public clouds generally require organizations to purchase and maintain their own server hardware. |
| 294 | (d) Hybrid Cloud |
| 295 | (a) Edge Computing |
| 296 | (b) SaaS, PaaS, IaaS |
| 297 | (b) Microsoft Excel |
| 298 | (a) Virtualization |
| 299 | (c) Mandatory localized hardware maintenance |
| 300 | (d) Dynamic resource scaling capability |
Key facts from Science and Technology
- The RPSC paper is General Knowledge and General Science, so science questions come with a strong dose of applied and recent topics.
- Everyday science questions test the laws and terms of physics, chemistry and biology through examples.
- Defence and space questions pair a missile, satellite or mission with its year and organisation.
- Policy questions ask for the year, the body and the aim of schemes like STIP, the National Quantum Mission and BioE3.
- Health, environment and agriculture are on a separate page, with their own chapters.
Frequently asked questions
How many RAS Prelims practice MCQs are there on Science and Technology?
This page has 1113 practice MCQs on Science and Technology. Each has the correct answer, and most have an explanation.
Which chapters does the science and technology set cover?
Six chapters: basics of everyday science; computers, information and communication technology; defence and space technology in India; genetics, biotechnology and nanotechnology; science and technology policies and government programmes; and recent advances, Indian contributors and indigenisation.
Is science and technology part of the RAS Prelims syllabus?
Yes. The RPSC paper is called General Knowledge and General Science, and its syllabus lists science and technology topics along with environment, health, agriculture and government programmes, so questions can come from any of these areas.
How should I prepare science for RAS Prelims?
Revise the concepts by examples, then learn the missions, schemes and scientists with their year and organisation. Attempt each chapter, read the explanations and keep a list of the facts you missed.