Final Quiz

In the US National Institute of Standards and Technology, NIST, definition of “cloud computing”, what does the statement “shared pool of configurable computing resources” include?

• Networks, servers, storage, applications, and services

• Leverage cloud services over the open internet on hardware owned by the cloud provider

• Data security, associated with loss or unavailability of data causing business disruption

• Five essential characteristics, three deployment models, three service models

What are some of the cloud benefits that make it lower risk for enterprises to adopt cloud? Select two

• Data security associated with loss or unavailability of data causing business disruption

• The pay-as-you-go model allows enterprises to experiment with technologies as opposed to making long-term decisions based on little or no trial.

• Diversity of standardization in how the constantly evolving technologies integrate and interoperate.

• The speed with which applications can be up and running on the cloud versus months on traditional platforms, means enterprises can experiment, fail fast, learn, and course correct without setting them back significantly

What tasks do hypervisors accomplish? Select two

• Enable multiple operating systems to run alongside each other, sharing the same physical computing resources.

• Facilitate access to mainframes for multiple users to access the same data storage layer.

• Scale on demand to support fluctuating workloads.

• Separates VMs logically and assigns each a share of the underlying computing power, memory, and storage.

An IBM Institute for Business Value study says that more than three-quarters of enterprises today are using cloud computing to expand into new industries. What additional benefits do organizations find when adopting the cloud:

• Avoid having to fail at all

• Improve customer experience and create enhanced products and services

• Lengthen product lifecycles to ensure higher quality offerings

• Continue making expensive decisions because it often worked in the past

Which are some of the key components of cloud infrastructure? Select two.

• IaaS providers manage large data centers that contain the physical machines required to power the various layers of abstraction on top of them

• IaaS providers deploy the middleware and install required applications on the virtual machines

• IaaS providers manage the hypervisors and end-users provision the virtual instances

• IaaS providers manage the hypervisors and provision virtual instances

which of these statements are true of Virtual Private Clouds (VPCs)? Select two.

• VPCs are provisioned in a logically isolated part of a shared public cloud

• The VPC infrastructure is owned, managed, and operated by the public cloud service provider

• VPCs may be provisioned over a cloud service provider’s infrastructure, but the infrastructure is owned, managed, and operated by the enterprise

• VPC allows all users of the shared public cloud to access resources in the VPC on need basis; it also allows users of the VPC to access resources of the public cloud

If an organization needs to run a highly sensitive and mission critical application with unpredictable performance and capacity requirements, which of the following models would best meet its requirements?

• Hybrid Cloud

• Public Cloud

• Private Cloud

• On-premise Data Centers

Is it possible to run completely different operating systems on Virtual Machines (VMs) that are on a single host? If yes, what makes this possible?

• Yes, Virtualization makes it possible— to have VMs, running different operating systems, on a single host.

• No, it is not possible—A single host can only work as one single virtual environment, and can, therefore, have only one environment.

• Yes, Containerization makes it possible—to have VMs that are unique physical entities, so you can have completely different Operating Systems on them.

• No, it is not possible—VMs are software-based versions of a single host. They cannot have different environments from one another.

Which of these scenarios is ideal for the use of bare metal servers, as opposed to virtual servers? Select two.

• CPU and I/O intensive workloads

• Low cost to use

• Huge performance and strict security and compliance requirements

• Workloads that require limited throughput and performance

Subnets are the main area where security is implemented in the cloud. What is used to provide security at the virtual instance level in subnets?

• Security Groups or SGs

• Virtual Private Cloud or VPC

• Load Balancers

• Access Control Lists or ACLs