GCP-Developer_DAY2

. Your organization runs a distributed application in the Compute Engine virtual machines. Your organization needs redundancy, but it also needs extremely fast communication (less than 10 milliseconds) between the parts of the application in different virtual machines.
Where should your organization locate this virtual machines?

• ·In a single zone within a single region

• . In different zones within a single region 

• · In multiple regions, using one zone per region

• In multiple regions, using multiple zones per region

You are a program manager within a Software as a Service (SaaS) company that offers rendering software for animation studios. Your team needs the ability to allow scenes to be scheduled at will and to be interrupted at any time to restart later. Any individual scene rendering takes less than 12 hours to complete, and there is no service-level agreement (SLA) for the completion time for all scenes. Results will be stored in a global Cloud Storage bucket. The compute resources are not bound to any single geographical location. This software needs to run on Google Cloud in a cost-optimized way.
What should you do?

• ·Deploy the application on Compute Engine using preemptible /spot instances

• · Develop the application so it can run in an unmanaged instance group

• Create a reservation for the minimum number of Compute Engine instances you will use

•  Start more instances with fewer virtual centralized processing units (vCPUs) instead of fewer instances with more vCPUs

. What is the difference between Standard and Coldline storage?

• ·A. Coldline storage is for data for which a slow transfer rate is acceptable.

• ·B. Standard and Coldline storage have different durability guarantees.

• ·C. Standard and Coldline storage use different APIs.

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• D. Coldline storage is for infrequently accessed data.

. you are a program manager for a team of developers who are building an event-driven application to allow users to follow one another's activities in the app. Each time a user adds himself as a follower of another user, a write occurs in the real-time database.
The developers will develop a lightweight piece of code that can respond to database writes and generate a notification to let the appropriate users know that they have gained new followers. The code should integrate with other cloud services such as Pub/Sub, Firebase, and Cloud APIs to streamline the orchestration process. The application requires a platform that automatically manages underlying infrastructure and scales to zero when there is no activity.
Which primary compute resource should your developers select, given these requirements?

• ·A. Google Kubernetes

• ·B. Cloud Functions

• ·C. App Engine flexible environment

• ·D. Compute Engine

An organization wants to migrate legacy applications currently hosted in their data center to the cloud. The current architecture dictates that each application needs its own operating system (OS) instead of sharing an OS.
Which infrastructure solution should they choose?

• ·A. Virtual machines

• ·B. Open source

• ·C. Serverless computing

• ·D. Containers