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Google Professional-Cloud-Developer Exam Overview:

Certification Vendor:	Google Cloud
Exam Name:	Google Cloud Certified Professional Cloud Developer Exam
Exam Number:	Professional Cloud Developer
Exam Format:	Multiple select, Case study, Multiple choice
Related Certifications:	Google Cloud Certified - Professional Cloud Architect Google Cloud Certified - Associate Cloud Engineer
Available Languages:	English, Japanese
Real Exam Qty:	Approximately 50–60 questions
Exam Duration:	120 minutes
Exam Price:	$200 USD (may vary by region and taxes)
Certificate Validity Period:	2 years
Recommended Training:	Google Cloud Skills Boost - Professional Cloud Developer Official Google Cloud Certification Training Path
Exam Registration:	Official Google Cloud Certification Registration Kryterion Webassessor Portal
Sample Questions:	Google Professional-Cloud-Developer Sample Questions
Exam Way:	Online proctored exam (remote) or onsite test center via Kryterion Webassessor
Pre Condition:	No formal prerequisites required. Recommended: 3+ years industry experience including 1+ year designing and managing solutions on Google Cloud.
Official Syllabus URL:	https://cloud.google.com/certification/cloud-developer

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Google Professional-Cloud-Developer Exam is a certification that validates a developer's expertise in building and deploying applications on the Google Cloud Platform (GCP). Google Certified Professional - Cloud Developer certification is ideal for software developers who want to demonstrate their proficiency in Google Cloud technologies, including App Engine, Compute Engine, Kubernetes Engine, and Cloud Functions. By passing the exam, developers can demonstrate their ability to design, develop, deploy, and manage scalable and reliable cloud applications on GCP.

Google Certified Professional - Cloud Developer Sample Questions (Q28-Q33):

NEW QUESTION # 28
You are designing a chat room application that will host multiple rooms and retain the message history for each room. You have selected Firestore as your database. How should you represent the data in Firestore?

A. Create a collection for the rooms. For each room, create a document that contains a collection for documents, each of which contains a message.
B. Create a collection for the rooms. For each room, create a document that lists the contents of the messages
C. Create a collection for the rooms, and create a document for each room. Create a separate collection for messages, with one document per message. Each room's document contains a list of references to the messages.
D. Create a collection for the rooms. For each room, create a collection that contains a document for each message

Answer: A

Explanation:
Explanation
https://firebase.google.com/docs/firestore/data-model#hierarchical-data

NEW QUESTION # 29
You are load testing your server application. During the first 30 seconds, you observe that a previously inactive Cloud Storage bucket is now servicing 2000 write requests per second and 7500 read requests per second.
Your application is now receiving intermittent 5xx and 429 HTTP responses from the Cloud Storage JSON API as the demand escalates. You want to decrease the failed responses from the Cloud Storage API.
What should you do?

A. Use the XML API instead of the JSON API for interfacing with Cloud Storage.
B. Distribute the uploads across a large number of individual storage buckets.
C. Pass the HTTP response codes back to clients that are invoking the uploads from your application.
D. Limit the upload rate from your application clients so that the dormant bucket's peak request rate is reached more gradually.

Answer: B

Explanation:
Explanation/Reference: https://cloud.google.com/storage/docs/request-rate

NEW QUESTION # 30
You are a developer working on an internal application for payroll processing. You are building a component of the application that allows an employee to submit a timesheet, which then initiates several steps:
* An email is sent to the employee and manager, notifying them that the timesheet was submitted.
* A timesheet is sent to payroll processing for the vendor's API.
* A timesheet is sent to the data warehouse for headcount planning.
These steps are not dependent on each other and can be completed in any order. New steps are being considered and will be implemented by different development teams. Each development team will implement the error handling specific to their step. What should you do?

A. Deploy a Cloud Function for each step that calls the corresponding downstream system to complete the required action.
B. Create a Pub/Sub topic for each step. Create a subscription for each downstream development team to subscribe to their step's topic.
C. Create a Pub/Sub topic for timesheet submissions. Create a subscription for each downstream development team to subscribe to the topic.
D. Create a timesheet microservice deployed to Google Kubernetes Engine. The microservice calls each downstream step and waits for a successful response before calling the next step.

Answer: C

NEW QUESTION # 31
Your team develops services that run on Google Cloud. You want to process messages sent to a Pub/Sub topic, and then store them. Each message must be processed exactly once to avoid duplication of data and any data conflicts. You need to use the cheapest and most simple solution. What should you do?

A. Process the messages with a Dataproc job, and write the output to storage.
B. Process the messages with a Cloud Function, and write the results to a BigQuery location where you can run a job to deduplicate the data.
C. Retrieve the messages with a Dataflow streaming pipeline, store them in Cloud Bigtable, and use another Dataflow streaming pipeline to deduplicate messages.
D. Process the messages with a Dataflow streaming pipeline using Apache Beam's PubSubIO package, and write the output to storage.

Answer: D

Explanation:
https://cloud.google.com/blog/products/data-analytics/handling-duplicate-data-in-streaming- pipeline-using-pubsub-dataflow Pub/Sub provides each message with a unique message_id, Dataflow uses it to deduplicate messages by default if you use the built-in Apache Beam PubSubIO.

NEW QUESTION # 32
You are planning to add unit tests to your application. You need to be able to assert that published Pub/Sub messages are processed by your subscriber in order. You want the unit tests to be cost-effective and reliable.
What should you do?

A. Add a filter by tester to the subscription.
B. Use the Pub/Sub emulator.
C. Create a topic and subscription for each tester.
D. Implement a mocking framework.

Answer: B

Explanation:
Explanation
https://cloud.google.com/pubsub/docs/emulator, "Testing apps locally with the emulator".

NEW QUESTION # 33
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