INFRA(course 4)

Businesses can use virtualization technology to:

• Improve efficiency

• Lower cost

• Provide faster maintenance

• All of the above

Why does the opex model (such as pay-as-you-go) work for the cloud providers?

• It allows them to generate a steady source of revenue over time from their clients

• It allows them to offer freemium model to potential clients who can try out the service without significant commitment

• It allows them to offer any available resources on-demand and charge based on usage

• All of the above

Which of the following is used to distribute incoming requests among various servers that form a computer cluster?

• Hypervisor

• Load balancer

• Database

• None of the above

Which of the following statements is NOT true for web applications?

• Software runs on the web app provider's server

• They can be accesses using a client's web browser

• Even if client machines can fail, the data and applications can be still accessed from another client device

• Requires virtualization of the client's machine

Which of the following is an example of a hypervisor?

• VMware ESXi

• Citrix Xenserver

• Microsoft Hyper-V

• All of the above

Which is the core technology behind "cloud computing"?

• HTTP

• Virtualization

• Thin clients

• Remote Desktop

Google's cloud platform offering is a:

• Public cloud

• Private cloud

• Hybrid cloud

• None of the above

Which kind of infrastructure will you prefer if you are operating a business in which some applications have to comply with strict regulatory compliance requirements on data security, while others require automated scalability and load balancing?

• Fog computing

• Private Cloud

• Public Cloud

• Hybrid Cloud

You are the CIO of a company that wants to create a new software application that would require customizing the operating system for optimal performance. What kind of cloud service are you basically looking for?

• SaaS

• PaaS

• IaaS

Which of the following statements is true for data centers?

• Datacenters with fully connected topology improves host-to-host capacity

• Blade servers in a rack are interconnected using the TOR switch

• Hardware maintenance on a server in a datacenter can be performed without interrupting the software applications because of virtualization

• All of the above