IBM Cloud Advocate v2 C1000-142 Exam Practice Test

Answer : D

Answer : A

IBM Cloud Kubernetes Service is a certified Kubernetes provider that enables customers to create their own Kubernetes cluster of compute hosts to deploy and manage their containerized apps.

Answer : B

Containers are lightweight and portable executable units (images) of software. They supply portability between different platforms and clouds. Containers are self-contained units that are designed to hold applications as well as all libraries and dependencies that the application requires. Containers can be run on physical computers or in the cloud.

Containers do not have an operating system of their own. Instead, they access the operating system of the device they are running on using a hypervisor. This allows them to be more light-weight, easier to provision, and much smaller than traditional virtual machines.

Virtual machine is a virtual re-presentation of physical computer, you can understand it as a computer inside a computer. Each individual virtual machine behaves exactly as though it were its own computer. It has its own operating system, memory, storage, and compute and is totally unaware of other virtual machines that could be running on the same host.

How do containers differ from a traditional VM?

Traditional virtualization leverages a hypervisor to virtualize physical hardware. Each VM contains:

- A guest operating system (OS)

- A virtual copy of the hardware that the OS requires to run

- An application and its associated libraries and dependencies

- Containers, on the other hand, virtualize the operating system. Each container only contains:

- The application

- Its libraries

- Its dependencies

Answer : B

Serverless computing is a cloud computing execution model that provisions computing resources on demand and offloads all responsibility for common infrastructure management tasks. They are auto-scalable so it can handle extremely active traffic periods.

Serverless computing does-not means there are no physical servers utilized, of course there are servers, but we don't have to manage them, in background cloud provider manage (provisioning, scheduling, scaling, patching and more) for us, this gives developers more time to develop and optimize their front-end application code and business logic. And with serverless, customers never pay for idle capacity. They pay only for the resources required to run their applications, and only when those applications are running.

Serverless is a polyglot environment, enabling developers to code in any language or framework - Java, Python, node.js - with which they're comfortable. Because serverless scales up and down on demand in response to workload, it offers significant cost savings for spiky workloads. But it does not offer the same savings for workloads characterized by predictable, steady or long-running processes; in these cases, a traditional server environment might be simpler and more cost-effective.

Serverless Implementations differ across service providers, and capabilities vary, including supported runtimes, authentication, scaling and monitoring.

Serverless architectures are well-suited for event-driven, IOT and stream-processing workloads most notably open-source Apache Kafka event streaming platform.

Benefits:

- Pay only for the time for our code will run.

- Developer don't have to take care of servers or infrastructure, it maintains by cloud provider, so they can focus more on development and business logic.

- API Management & Integrated event sources.

- Serverless scales up and down on demand in response to workload

[Exam Tips]: You can expect, few Question

Answer : A

Cloud is a metaphor for the internet based on the basic cloud drawing used to represent the telephone network. [Exam Tips] : On-demand self-service is an essential characteristic of cloud computing.

Answer : A

Answer : C

IBM Cloud for VMware Solutions Shared uses VMware Cloud Director to enable you to extend your VMs to the cloud with ultimate capacity and scalability, while paying only for what is consumed. With IBM managing the infrastructure up to the hypervisor, you don't need to worry about providing updates and patching, and instead can focus on application innovation. Use Cases : Development and test, Temporary workload migration, Cost-effective disaster recovery. Note : RTO is the maximum amount of time the organization can afford to be without access to the data or application. In other words, how quickly the customer needs to recover the data and application. RPO is the amount of data an organization can afford to lose and effectively dictates how frequently they need to back up their data to avoid losing more.