Free Google Professional-Cloud-Developer Exam Questions

Question 1

What is the purpose of selecting the API Key option in the Policies section when creating a proxy in Apigee?

A : To configure the virtual hosts for the proxy

B : To create a proxy with a self-explanatory name

C : To protect the service through the apiKey authentication method

D : To access the Proxy API section

Answer: C

Question 2

You have been requested by your colleague to examine the code below, which is responsible for adding a credit to an account balance in Cloud Datastore.

What suggestion do you have for your teammate to improve?

A : Utilize a transactional database with strong consistency.

B : Get and store the entity within a transaction.

C : Avoid returning the account entity from the function.

D : Get the entity with an ancestor query.

Answer: D

Question 3

Azgomi is a community application designed to facilitate communication between people in close proximity. It is used for event planning, organizing sporting events, and for businesses to connect with their local communities. Azgomi launched recently in a few neighborhoods in Dallas and is rapidly growing into a global phenomenon. Its unique style of hyper-local community communication and business outreach is in demand around the world.

The company's executive statement is to take their local community services global. Azgomi wants to expand their existing service, with updated functionality, in new regions to better serve their global customers. They want to hire and train a new team to support these regions in their time zones. They will need to ensure that the application scales smoothly and provides clear uptime data.

Azgomi's environment is a mix of on-premises hardware and infrastructure running in Google Cloud Platform. The Azgomi team understands their application well, but has limited experience in global scale applications. Existing APIs run on Compute Engine virtual machine instances hosted in GCP. State is stored in a single instance MySQL database in GCP. Data is exported to an on-premises Teradata/Vertica data warehouse. Data analytics is performed in an on-premises Hadoop environment. The application has no logging. There are basic indicators of uptime; alerts are frequently fired when the APIs are unresponsive.

Azgomi's investors want to expand their footprint and support the increase in demand they are seeing. Their requirements are to expand availability of the application to new regions, increase the number of concurrent users that can be supported, ensure a consistent experience for users when they travel to different regions, obtain user activity metrics to better understand how to monetize their product, ensure compliance with regulations in the new regions (for example, GDPR), reduce infrastructure management time and cost, and adopt the Google-recommended practices for cloud computing.

Technical requirements include providing usage metrics and monitoring, APIs requiring strong authentication and authorization, increased logging, and data stored in a cloud analytics platform. The application and backend must be moved to a serverless architecture to facilitate elastic scaling. The authorized access to internal apps should be provided in a secure manner. Azgomi has connected their Hadoop infrastructure to GCP using Cloud Interconnect in order to query data stored on persistent disks.

What would be the most appropriate IP strategy for them to implement?

A : Provision a single instance for NAT.

B : Create manual subnets.

C : Create multiple peered VPCs.

D : Create an auto mode subnet.

Answer: B

Question 4

The "Master" dataset in BigQuery contains employee travel and expenses information, which is classified by department. To ensure that employees can only access information related to their respective department, a security framework needs to be implemented with minimal steps.

What actions do you need to take?

A : Create a separate dataset for each department. Create a view with a WHERE clause to select records from a specific dataset for that department. Authorize the view to access records from the Master dataset. Give employees permission to the department-specific dataset.

B : Create a separate dataset for each department. Create a data pipeline to copy relevant information from the Master dataset to the department-specific dataset. Give employees permission to the department-specific dataset.

C : Create a Master dataset. Create a separate view for each department in the Master dataset. Give employees access to their department's view.

D : Create a Master dataset. Create a separate table for each department in the Master dataset. Give employees access to their department's table.

Answer: C

Question 5

Azgomi is a popular community application that facilitates communication between people in close proximity. It is used for event planning, organizing sporting events, and connecting businesses with their local communities. Although it launched recently in a few neighborhoods in Dallas, it is rapidly expanding into a global phenomenon. The company's venture capital investors are looking for rapid growth and expansion into new regions, offering the same experience to users, regardless of their location.

Azgomi wants to expand its service to new regions, with updated functionality to better serve its global customers. They plan to hire and train a new team to support these regions in their respective time zones. It is essential that the application scales smoothly and provides clear uptime data, and that they analyze and respond to any issues that occur. The existing technical environment is a mix of on-premises hardware and infrastructure running in Google Cloud Platform. The application runs on Compute Engine virtual machine instances hosted in GCP. State is stored in a single instance MySQL database in GCP. Release cycles include development freezes to allow for QA testing. The application has no logging. Applications are manually deployed by infrastructure engineers during periods of slow traffic on weekday evenings. There are basic indicators of uptime, and alerts are frequently fired when the APIs are unresponsive.

Azgomi's investors want to expand its footprint and support the increase in demand they are seeing. They require the following:

• Expand availability of the application to new regions.

• Support 10x as many concurrent users.

• Ensure a consistent experience for users when they travel to different regions.

• Obtain user activity metrics to better understand how to monetize their product.

• Ensure compliance with regulations in the new regions (for example, GDPR).

• Reduce infrastructure management time and cost.

• Adopt Google-recommended practices for cloud computing.

○ Develop standardized workflows and processes around application lifecycle management.

○ Define service level indicators (SLIs) and service level objectives (SLOs).

The technical requirements for Azgomi include:

• Providing secure communications between the on-premises data center and cloud-hosted applications and infrastructure.

• The application must provide usage metrics and monitoring.

• APIs require authentication and authorization.

• Implement faster and more accurate validation of new features.

• Logging and performance metrics must provide actionable information to be able to provide debugging information and alerts.

• Must scale to meet user demand.

What steps can Azgomi take to revamp their architecture in order to accommodate a significant surge in user traffic?

A : Use multiple Compute Engine instances to run MySQL to store state information. Use a Google Cloud-managed load balancer to distribute the load between instances. Use managed instance groups for scaling.

B : Use Google Kubernetes Engine (GKE) to run the application as a microservice. Run the MySQL database on a dedicated GKE node.

C : Use a Cloud Storage bucket to host the application as a static website, and use another Cloud Storage bucket to store user data.

D : Use Memorystore to store session information and CloudSQL to store state information. Use a Google Cloud-managed load balancer to distribute the load between instances. Use managed instance groups for scaling.

Answer: C