Free Professional-Cloud-Architect Exam Braindumps

- (Exam Topic 5)
Your company's user-feedback portal comprises a standard LAMP stack replicated across two zones. It is deployed in the us-central1 region and uses autoscaled managed instance groups on all layers, except the database. Currently, only a small group of select customers have access to the portal. The portal meets a 99.99% availability SLA under these conditions However next quarter, your company will be making the portal available to all users, including unauthenticated users. You need to develop a resiliency testing strategy to ensure the system maintains the SLA once they introduce additional user load. What should you do?

1. A. Capture existing users input, and replay captured user load until autoscale is triggered on all layer
2. B. At the same time, terminate all resources in one of the zones.
3. C. Create synthetic random user input, replay synthetic load until autoscale logic is triggered on at least one layer, and introduce "chaos" to the system by terminating random resources on both zones.
4. D. Expose the new system to a larger group of users, and increase group ' size each day until autoscale logic is tnggered on all layer
5. E. At the same time, terminate random resources on both zones.
6. F. Capture existing users input, and replay captured user load until resource utilization crosses 80%. Also, derive estimated number of users based on existing users usage of the app, and deploy enough resources to handle 200% of expected load.

Correct Answer: A

- (Exam Topic 9)
For this question, refer to the Helicopter Racing League (HRL) case study. Your team is in charge of creating a payment card data vault for card numbers used to bill tens of thousands of viewers, merchandise consumers, and season ticket holders. You need to implement a custom card tokenization service that meets the following requirements:
• It must provide low latency at minimal cost.
• It must be able to identify duplicate credit cards and must not store plaintext card numbers.
• It should support annual key rotation.
Which storage approach should you adopt for your tokenization service?

1. A. Store the card data in Secret Manager after running a query to identify duplicates.
2. B. Encrypt the card data with a deterministic algorithm stored in Firestore using Datastore mode.
3. C. Encrypt the card data with a deterministic algorithm and shard it across multiple Memorystore instances.
4. D. Use column-level encryption to store the data in Cloud SQL.

Correct Answer: B

- (Exam Topic 5)
You need to migrate Hadoop jobs for your company’s Data Science team without modifying the underlying infrastructure. You want to minimize costs and infrastructure management effort. What should you do?

1. A. Create a Dataproc cluster using standard worker instances.
2. B. Create a Dataproc cluster using preemptible worker instances.
3. C. Manually deploy a Hadoop cluster on Compute Engine using standard instances.
4. D. Manually deploy a Hadoop cluster on Compute Engine using preemptible instances.

Correct Answer: B
Reference: https://cloud.google.com/architecture/hadoop/hadoop-gcp-migration-jobs

- (Exam Topic 5)
One of the developers on your team deployed their application in Google Container Engine with the Dockerfile below. They report that their application deployments are taking too long.

You want to optimize this Dockerfile for faster deployment times without adversely affecting the app’s functionality.
Which two actions should you take? Choose 2 answers.

1. A. Remove Python after running pip.
2. B. Remove dependencies from requirements.txt.
3. C. Use a slimmed-down base image like Alpine linux.
4. D. Use larger machine types for your Google Container Engine node pools.
5. E. Copy the source after the package dependencies (Python and pip) are installed.

Correct Answer: CE
The speed of deployment can be changed by limiting the size of the uploaded app, limiting the complexity of the build necessary in the Dockerfile, if present, and by ensuring a fast and reliable internet connection.
Note: Alpine Linux is built around musl libc and busybox. This makes it smaller and more resource efficient than traditional GNU/Linux distributions. A container requires no more than 8 MB and a minimal installation to disk requires around 130 MB of storage. Not only do you get a fully-fledged Linux environment but a large selection of packages from the repository.
References: https://groups.google.com/forum/#!topic/google-appengine/hZMEkmmObDU https://www.alpinelinux.org/about/

- (Exam Topic 5)
You are developing a globally scaled frontend for a legacy streaming backend data API. This API expects events in strict chronological order with no repeat data for proper processing.
Which products should you deploy to ensure guaranteed-once FIFO (first-in, first-out) delivery of data?

1. A. Cloud Pub/Sub alone
2. B. Cloud Pub/Sub to Cloud DataFlow
3. C. Cloud Pub/Sub to Stackdriver
4. D. Cloud Pub/Sub to Cloud SQL

Correct Answer: B
Reference https://cloud.google.com/pubsub/docs/ordering