ATS - CLOUD COMPUTING

What is one of the main limitations of the cloud?

• Lack of scalability

• Dependence on providers and proprietary systems

• High initial costs

• Difficulty accessing services

Answer explanation

One of the main limitations of the cloud is the dependence on providers and proprietary systems, which can lead to vendor lock-in and reduced flexibility for users compared to more open solutions.

Why is cloud computing considered to follow an economy of scale model?

• Because cloud providers charge higher prices as more resources are consumed.

• Because cloud computing requires every user to

• Because cloud services are only affordable for large corporations.

• Because cloud providers can offer lower prices as they scale, spreading costs over a large customer base and optimizing resource utilization.

Answer explanation

Cloud computing follows an economy of scale model because providers can lower prices as they grow, distributing costs across many customers and optimizing resource use, making services more affordable.

Which cloud service model allows users to access software applications over the internet without managing the underlying infrastructure?

• Software as a Service (SaaS)

• Infrastructure as a Service (IaaS)

• Function as a Service (FaaS)

• Platform as a Service (PaaS)

Answer explanation

Software as a Service (SaaS) allows users to access software applications via the internet without the need to manage the underlying infrastructure, making it the correct choice for this question.

Which type of cloud service model provides virtualized computing resources over the internet?

• Software as a Service (SaaS)

• Function as a Service (FaaS)

• Infrastructure as a Service (IaaS)

• Platform as a Service (PaaS)

Answer explanation

Infrastructure as a Service (IaaS) provides virtualized computing resources over the internet, allowing users to rent IT infrastructure like servers and storage. This distinguishes it from SaaS, FaaS, and PaaS, which serve different purposes.

XaaS stands for...

• Twiter (X) as a Service

• Xml as a Service

• Everything as a Service

• XtreemFS as a Service

Answer explanation

XaaS stands for 'Everything as a Service', which encompasses a wide range of services delivered over the internet. The other options are incorrect interpretations of the acronym.

What is a primary characteristic of a public cloud?

• Customizable hardware options

• Exclusive access to resources

• Shared resources among multiple users

• Higher security than private clouds

Answer explanation

A primary characteristic of a public cloud is that it offers shared resources among multiple users, allowing for cost efficiency and scalability, unlike private clouds which provide exclusive access.

Which cloud deployment model is dedicated to a single organization and offers the highest level of control?

• Public cloud

• Hybrid cloud

• Private cloud

• Community cloud

Answer explanation

The private cloud model is dedicated to a single organization, providing the highest level of control over resources and security, unlike public, hybrid, or community clouds which share resources among multiple users.

What type of cloud allows the sharing of resources between several organizations with similar needs?

• Public cloud

• Private cloud

• Community cloud

• Hybrid cloud

Answer explanation

A community cloud is designed for multiple organizations with similar needs, allowing them to share resources and infrastructure while maintaining privacy and security. This makes it the correct choice for the question.

What is a key benefit of using a Software-Defined Architecture (SDA)?

• It eliminates the need for any hardware in the network.

• It allows centralized and automated management of network resources through software.

• It increases hardware costs by relying solely on proprietary devices.

• It requires manual configuration of every network component.

Answer explanation

A key benefit of Software-Defined Architecture (SDA) is its ability to allow centralized and automated management of network resources through software, streamlining operations and improving efficiency.

What is the primary purpose of Infrastructure as Code (IaC)?

• To manually configure servers and infrastructure through physical hardware setups.

• To allow developers to write application code without considering infrastructure requirements.

• To enable infrastructure changes only through graphical user interfaces.

• To automate the provisioning and management of infrastructure using machine-readable configuration files.

Answer explanation

The primary purpose of Infrastructure as Code (IaC) is to automate the provisioning and management of infrastructure using machine-readable configuration files, streamlining processes and reducing manual errors.