All Categories MCQs
Topic Notes: All Categories
General Description
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
891
What is the primary benefit of using 'microservices architecture' in cloud-native development?
Answer:
It breaks down an application into a collection of loosely coupled, independently deployable services.
Microservices architecture structures an application as a collection of small, independent services communicating via APIs. This approach enhances scalability, resilience, and allows for independent development and deployment of services.
892
What is the concept of 'fault tolerance' in cloud computing?
Answer:
The ability of a system to continue operating normally despite the failure of one or more components.
Fault tolerance refers to the ability of a system to endure component failures and continue operating without interruption. Cloud environments achieve this through redundancy and automatic failover mechanisms.
893
Which of the following is commonly considered a 'cloud-native' technology?
Answer:
Container orchestration (e.g., Kubernetes).
Cloud-native technologies are designed to build and run scalable applications in modern, dynamic environments like public, private, and hybrid clouds. Container orchestration platforms like Kubernetes are central to managing these applications.
894
What is the primary role of an 'Availability Zone' (AZ) in major cloud providers?
Answer:
A single, isolated location within a region, designed to be independent of other AZs.
An Availability Zone is a physically separate, independent data center within a cloud region. AZs are isolated from failures in other Availability Zones and provide inexpensive, low-latency network connectivity to other AZs in the same region, enhancing fault tolerance and high availability.
895
Which cloud deployment model refers to a cloud infrastructure provisioned for exclusive use by a single organization comprising multiple consumers?
Answer:
Private Cloud.
A private cloud is operated solely for a single organization, whether managed internally or by a third party, and hosted either internally or externally, offering greater control and security.
896
What is a 'virtual machine' (VM) in the context of cloud computing?
Answer:
An emulation of a computer system that provides the functionality of a physical computer.
A virtual machine is a software-based emulation of a computer system. It runs on a physical host and provides its operating system and applications with the resources of a physical machine, forming the basis of IaaS.
897
Which cloud computing model offers users the ability to run their code without provisioning or managing servers, paying only for the compute time consumed?
Answer:
Functions as a Service (FaaS) / Serverless computing.
FaaS (or serverless computing) allows developers to execute code in response to events without having to provision or manage servers. The cloud provider dynamically manages the server resources, and users are billed based on execution time and resources consumed.
898
Which characteristic allows a cloud provider to serve multiple customers from the same physical infrastructure?
Answer:
Resource pooling and multi-tenancy.
Resource pooling (where computing resources are aggregated) combined with multi-tenancy (where multiple customers share the same infrastructure securely) enables cloud providers to cost-effectively serve numerous clients from a shared physical base.
899
A small business with limited IT staff wants to use a complete email and office suite online. Which cloud service model is most appropriate?
Answer:
SaaS.
SaaS offers fully functional applications like email and office suites that are hosted and managed by the cloud provider, minimizing the IT burden for the customer. Examples include G Suite and Microsoft 365.
900
What is a 'virtual private cloud' (VPC)?
Answer:
A logically isolated section of a public cloud where users can launch resources in a virtual network defined by them.
A VPC is a virtual network dedicated to your AWS account (or similar in other clouds). It is logically isolated from other virtual networks in the AWS Cloud, allowing users to define their virtual networking environment, including IP address ranges, subnets, route tables, and network gateways.