A new trend in the IT industry has seen an increasing number of companies moving their data online, taking advantage of the more cost-effective cloud and its features. Cloud computing refers to the provisioning of resources without the need for capital expenditure, in which the Cloud Service Provider (CSP) provides all of the hardware and customer lease access. The CSP is also responsible for disaster recovery, so that the customer only pays for the resources that they use.

Virtualization has also become increasingly popular within companies due to the ability to recover a desktop or server in minutes. Prior to virtualization, if a server crashed, it could take the system administrator half a day to recover it. Virtualization is used to provide desktops for cloud computers.

In the CompTIA A+ Core 1 (220-1101) certification examination, Domain 4.0 Virtualization and Cloud Computing makes up 11% of the assessment and is broken down into the following exam objectives...

Practice Exam Questions

4.1 Summarize cloud computing concepts

What type of cloud service would you use if you wanted to move 100 desktops to the cloud?
1. SaaS
2. IaaS
3. SECaaS
4. MaaS
In which type of cloud model does a company have most of its workforce on-premises and its mobile salesforce in the cloud?
1. Hybrid
2. Private
3. Community
4. Public
An organization is expanding, and it needs to increase its storage space and compute resources to meet the demand of its customers. Most of the workforce operates as remote workers. Which of the following best describes the cloud service required?
1. PaaS
2. SaaS
3. IaaS
4. DRaas
A company wants to migrate its email and business applications to the cloud. Which of the following cloud services will be used to meet the objective?
1. PaaS
2. SaaS
3. IaaS
4. MaaS
The Chief Executive Officer wants to ensure that when the company moves to the cloud, it retains total control over the storage and management of proprietary data. Which cloud model is the best for this?
1. Hybrid cloud
2. Community...