CDL practice questions 101–110

1. Question 101 · 288 in bank

   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?

   • AGoogle Kubernetes Engine
   • BCloud Functions
   • CApp Engine flexible environment
   • DCompute Engine

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   Answer: B

   Explanation

   Given the requirements of automatically managing underlying infrastructure, scaling to zero when there is no activity, and integrating with other cloud services like Pub/Sub, Firebase, and Cloud APIs, the appropriate compute resource for your developers to select would be Cloud Functions in Google Cloud Platform (GCP). Cloud Functions is a serverless compute service that allows you to run event-driven code in a fully managed environment. It is designed to execute short-lived functions in response to various events, such as database writes, file uploads, HTTP requests, and Pub/Sub messages.

   Source: Adapted from community discussion — cookieMr

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2. Question 102 · 288 in bank

   An organization is looking for a hybrid-cloud management solution that will help them build and run applications on-premises and in the cloud. What solution should the organization use?

   • AAnthos
   • BCloud Functions
   • CApp Engine
   • DCompute Engine

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   Answer: A

   Explanation

   Anthos is a platform offered by Google Cloud that enables organizations to build and run applications both on-premises and in the cloud. It provides a consistent and unified experience across different environments, allowing for seamless application development and deployment. With Anthos, organizations can leverage the benefits of both on-premises infrastructure and cloud services, enabling flexibility and scalability in their application deployment strategies.

   Source: Adapted from community discussion — sivakarthick16

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3. Question 103 · 288 in bank

   An organization with a commissions-based business model is struggling to predict cloud costs due to fluctuating revenue. How can the organization optimize the use of their cloud resources?

   • ABy applying intelligent recommendations
   • BBy decentralizing financial decision making
   • CBy sharing project ownership across all teams
   • DBy increasing their capital expenditure

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   Answer: A

   Explanation

   The organization can optimize the use of their cloud resources by applying intelligent recommendations. This means using tools and services that can analyze their cloud usage and identify areas where they can save money. For example, they could use a tool that can automatically shut down unused resources or that can move workloads to cheaper regions. Decentralizing financial decision making, sharing project ownership across all teams, and increasing their capital expenditure would not necessarily help the organization optimize the use of their cloud resources. In fact, these options could make it more difficult to track and manage cloud costs.

   Source: Adapted from community discussion — yizza

   References

   • Google Cloud documentation
   • Google Cloud documentation

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4. Question 104 · 288 in bank

   What DevOps practice should an organization use when developing their application to help minimize disruption caused by bugs?

   • APause production until all bugs have been eliminated
   • BPrioritize fixing large bugs during production because they are easier to review
   • CImplement small changes incrementally to reduce recovery time when bugs appear
   • DImplement large changes together to make rolling back easier when bugs appear

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   Answer: C

   Explanation

   C. Implement small changes incrementally to reduce recovery time when bugs appear One of the key principles of DevOps is to release changes frequently and in small batches. This helps to reduce the risk of disruption caused by bugs. If a bug is introduced in a small change, it is easier to identify and fix the bug without affecting a large number of users.

   Source: Adapted from community discussion — __rajan__

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5. Question 105 · 288 in bank

   An organization has been struggling to make operations more efficient. What site reliability engineering (SRE) best practice should the organization follow to increase efficiency?

   • ADecrease over-reliance on data to make decisions.
   • BAssign exclusive production ownership to developers.
   • CSpend less time measuring outage impact.
   • DFocus on increasing toil automation.

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   Answer: D

   Explanation

   The answer is D. Toil refers to repetitive, manual operational work that does not provide long-term value and can be automated. By focusing on increasing toil automation, the organization can streamline operations, reduce manual intervention, and free up resources to focus on more strategic tasks. This approach improves efficiency by automating repetitive tasks, reducing human error, and allowing teams to focus on higher-value activities.

   Source: Adapted from community discussion — Anna3456789

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6. Question 106 · 288 in bank

   An organization wants to ingest custom log data from GKE environments, virtual machines, and Google Cloud services. Which Google Cloud tool should the organization use?

   • ADialogflow
   • BCloud Logging
   • CCloud SDK
   • DData Catalog

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   Answer: B

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7. Question 107 · 288 in bank

   What makes Google Kubernetes Engine (GKE) an effective solution for developers working to resolve application errors?

   • AIt reduces the time needed to iterate on various solutions.
   • BIt provides intelligent recommendations to optimize application development.
   • CIt removes the need for containerizing applications.
   • DIt stores application code on multiple servers to facilitate collaboration across silos.

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   Answer: A

   Explanation

   A: GKE's features like automated rollouts, rollbacks, and its managed environment can significantly reduce the time developers need to iterate on and deploy various solutions. The integration with CI/CD pipelines and tools also supports rapid iterations.

   Source: Adapted from community discussion — Vivek007

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8. Question 108 · 288 in bank

   What is an organization responsible for when migrating from on-premises to the cloud?

   • ACovering the cost of cloud service downtime
   • BManaging underlying network infrastructure
   • CAdapting to a pay-as-you-go cloud expenditure model
   • DOptimizing cloud storage systems

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   Answer: C

   Explanation

   C. Adapting to a pay-as-you-go cloud expenditure model Correct. Moving to the cloud often involves changing how IT expenditures are accounted for from a capital expenditure model (CapEx) to an operational expenditure model (OpEx). In the cloud, organizations typically pay for services as they use them, which requires adapting budgeting and financial management practices to a pay-as-you-go model.

   Source: Adapted from community discussion — Vivek007

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9. Question 109 · 288 in bank

   An organization wants to duplicate critical system components to enhance reliability and mitigate single points of failure. Which design consideration should the organization use?

   • ARedundancy
   • BBackups
   • CLatency
   • DSecurity

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   Answer: A

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10. Question 110 · 288 in bank

    An organization stores backup files in Cloud Storage. The files will be accessed annually to test the disaster recovery plans. Which storage class is the most cost-effective?

    • AColdline class
    • BStandard class
    • CNearline class
    • DArchive class

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    Answer: D

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CDL practice, question 101. 288 questions available.