Cloud Digital Leader Practice Test 31 — 15 Questions

Question 1

Match each Google Cloud networking concept to its description.

Accepted Answer

VPC: Virtual network environment in Google Cloud.. The correct matches are: VPC - virtual network, Cloud Load Balancing - traffic distribution, Cloud CDN - content caching, Cloud Interconnect - dedicated physical connection. Common confusions include mixing Cloud CDN with Load Balancing and Cloud Interconnect with Cloud VPN.

Answer

Cloud CDN: Distributes incoming traffic across instances.

Answer

Cloud Interconnect: Virtual private network over the internet.

Question 2

Match each Google Cloud security concept to its description.

Accepted Answer

Cloud IAM: Unified access control for Google Cloud resources. The correct matches are Cloud IAM (access control), Cloud KMS (key management), Cloud Security Command Center (threat detection), and Cloud DLP (data loss prevention). Common confusions include mixing up IAM with Security Command Center or KMS with Cloud Armor.

Answer

Cloud IAM: Security monitoring and threat detection

Answer

Cloud KMS: Web application firewall and DDoS protection

Question 3

Match each Google Cloud DevOps tool to its purpose.

Accepted Answer

Cloud Build: Continuous integration/continuous delivery platform that executes builds in the cloud.. Key Google Cloud DevOps tools include Cloud Build for CI/CD, Container Registry for container image storage, Cloud Deployment Manager for infrastructure as code, and Cloud Source Repositories for version control. Common confusions often arise between Container Registry and Cloud Build, or between Cloud Source Repositories and Deployment Manager.

Answer

Cloud Build: Private container image registry for storing and managing Docker images.

Answer

Cloud Deployment Manager: Private Git repositories hosted on Google Cloud.

Question 4

Match each Google Cloud pricing concept to its definition.

Accepted Answer

Sustained Use Discounts: Automatic discounts applied for sustained usage of resources over a month. Sustained Use Discounts are automatic monthly discounts for sustained usage; Committed Use Discounts require a contractual commitment for 1-3 years; Preemptible VMs are short-lived and can be terminated. Common confusions include swapping the definitions of sustained and committed use, or confusing preemptible VMs with standard VMs.

Answer

Sustained Use Discounts: Discounts for committing to a specific amount of usage over 1-3 years

Answer

Committed Use Discounts: Automatic discounts applied for sustained usage

Answer

Preemptible VMs: Compute instances that run continuously with high availability

Question 5

A company runs a web application on Compute Engine. During seasonal sales, traffic spikes unpredictably. The operations team wants to ensure the application scales automatically without manual intervention while minimizing cost. Which solution should they implement?

Accepted Answer

Use a managed instance group with autoscaling based on CPU utilization.. A managed instance group (MIG) with autoscaling based on CPU utilization is the correct solution because it automatically adjusts the number of VM instances in response to real-time traffic spikes, ensuring the application scales out during high demand and scales in during low demand. This eliminates manual intervention and optimizes cost by only running the necessary number of instances based on a target CPU utilization threshold (e.g., 60-80%).

Answer

Create a managed instance group with a fixed number of instances.

Answer

Use an unmanaged instance group and manually add instances.

Answer

Use a single large VM with vertical scaling.

Question 6

A company is adopting cloud to improve operational efficiency. Which TWO benefits are directly associated with cloud's resource pooling characteristic?

Accepted Answer

Cost optimization. Resource pooling allows the cloud provider to dynamically allocate and reallocate physical and virtual resources among multiple customers based on demand, which drives cost optimization through economies of scale and higher utilization rates. Option D is correct because multi-tenancy is a direct outcome of resource pooling, where a single physical infrastructure serves multiple tenants securely, maximizing resource usage and reducing per-tenant costs.

Answer

Dedicated hardware

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Custom hardware

Answer

Increased downtime

Question 7

A company stores customer data in Google Cloud and wants to ensure data confidentiality in the event that hardware is decommissioned and returned by Google. How does Google protect customer data when storage hardware reaches end of life?

Accepted Answer

Google uses approved data erasure and physical destruction processes (shredding, degaussing) for decommissioned storage media before hardware leaves its facilities.. Google Cloud follows strict data destruction policies for decommissioned storage media. Before any hardware leaves Google's facilities, it undergoes approved data erasure (e.g., NIST SP 800-88 compliant wiping) followed by physical destruction (e.g., shredding, degaussing) to ensure customer data cannot be recovered. This process guarantees data confidentiality even if the hardware is returned or recycled.

Answer

Google transfers customer data to new hardware first, then ships the old hardware to the customer for self-destruction.

Answer

Customer data on decommissioned hardware is automatically encrypted, making it safe to discard without wiping.

Answer

Customers must pay a data destruction fee to ensure their data is wiped from decommissioned hardware.

Question 8

A large online retailer operates a microservices-based e-commerce platform on Google Kubernetes Engine (GKE) across multiple zones. The application consists of several stateless services that handle customer traffic, inventory, and order processing. Recently, the company migrated its relational database to Cloud Spanner to achieve global scalability and strong consistency. After the migration, during peak shopping periods (e.g., Black Friday), the application experiences significant performance degradation. The operations team monitors CPU utilization of the pods and finds it consistently below 60% even under heavy load. However, Cloud Spanner metrics show high query latency and increased number of transactions waiting for lock conflicts. The team suspects that the bottleneck is now the database, not the compute. The application is designed to scale horizontally by adding more pod replicas. The team wants to ensure that scaling decisions are based on the actual performance bottleneck. What should they do?

Accepted Answer

Modify the Horizontal Pod Autoscaler (HPA) to scale based on a custom metric that reflects Cloud Spanner query latency.. The Horizontal Pod Autoscaler (HPA) can be configured to scale based on custom metrics, such as Cloud Spanner query latency. Since the bottleneck is the database, scaling pods based on CPU utilization (which remains low) would not resolve the issue; instead, scaling based on Spanner latency ensures that the application adds replicas only when the database can handle more connections, reducing lock contention and improving overall performance.

Answer

Scale the GKE cluster to use larger node instances.

Answer

Increase the CPU request limit for the pods to allow higher CPU usage.

Answer

Reduce the number of pods to decrease Spanner load.

Question 9

A company's engineering organization wants to share operational knowledge across teams using a 'golden path' — a recommended, pre-configured set of tools, services, and templates that makes the easy path also the correct path. Which Google Cloud concept supports this practice?

Accepted Answer

Use Terraform blueprints, organization policies, and Cloud Foundation Toolkit to create pre-configured landing zones that enforce standards automatically.. The Cloud Foundation Toolkit (CFT) provides Terraform blueprints and pre-configured landing zones that enforce organizational policies and standards automatically. This aligns directly with the 'golden path' concept by making the easy path (using the blueprints) also the correct path (enforcing compliance and best practices through organization policies and automated deployments).

Answer

Create a shared Google Slides presentation documenting best practices for teams to reference.

Answer

Grant all teams Organization Admin access so they can configure resources however they prefer.

Answer

Hire a dedicated cloud architect to review every new project's design before it starts.

Question 10

A platform business (like a marketplace) hosts both buyers and sellers. As more sellers join, the marketplace becomes more valuable to buyers (more choice), and vice versa. Cloud infrastructure that can scale to handle millions of users is essential for this model. What economic concept describes why the platform becomes more valuable as it grows?

Accepted Answer

Network effects — the platform becomes more valuable to each participant as the total number of participants grows.. Network effects describe how the value of a platform increases for all participants as the user base grows. In a cloud-hosted marketplace, each new seller adds inventory that attracts more buyers, and each new buyer creates demand that attracts more sellers, creating a positive feedback loop. Cloud infrastructure is essential here because it must elastically scale to support this exponential growth in transactions and data without performance degradation.

Answer

Economies of scale — lower per-unit costs as production volume increases.

Answer

Monopoly pricing power — larger platforms can charge higher prices.

Answer

Marginal cost reduction — digital goods can be replicated at near-zero marginal cost.

Question 11

A company's cloud cost has grown significantly. A FinOps analysis reveals the largest waste category is idle Cloud SQL instances — 12 database instances that were provisioned for projects that have since ended, but were never deleted. What process failure most directly caused this waste?

Accepted Answer

The absence of a resource decommissioning process: when projects end, there is no formal step to identify and delete associated cloud resources, allowing idle infrastructure to persist and accrue costs indefinitely. The root cause is the lack of a formal resource decommissioning process. When projects end, there is no automated or manual step to identify and delete associated Cloud SQL instances, so idle databases continue to incur costs. In Google Cloud, Cloud SQL instances do not auto-delete; they persist until explicitly removed, making a decommissioning workflow essential to prevent waste.

Answer

The company should have used a cheaper database service instead of Cloud SQL

Answer

Cloud SQL pricing is too high compared to on-premises databases, making any unused capacity expensive

Answer

The database administrators forgot to enable automatic deletion for idle Cloud SQL instances

Question 12

A financial services company is subject to regulations requiring them to demonstrate that their cloud provider's employees cannot access customer data without the customer's explicit approval. Which Google Cloud feature most directly addresses this requirement?

Accepted Answer

Access Transparency and Access Approval, which log and require explicit customer approval for Google personnel access to customer content. Access Transparency and Access Approval directly address the regulatory requirement by providing near real-time logs of Google personnel actions on customer content and requiring explicit customer approval before such access can occur. Access Transparency logs every access attempt by Google employees, while Access Approval allows customers to approve or deny those requests, ensuring no unauthorized access without customer consent.

Answer

Customer-Managed Encryption Keys (CMEK), where the customer controls the encryption key and can revoke access

Answer

Cloud Audit Logs, which record all customer actions within Google Cloud

Answer

VPC Service Controls, which prevent Google employees from accessing resources inside the service perimeter

Question 13

A company wants to analyse streaming data from IoT devices in real time with sub-second latency, using SQL queries. Which combination of services should they use?

Accepted Answer

Cloud Pub/Sub + Dataflow + BigQuery. Dataflow with unbounded sources (like Pub/Sub) and SQL via Beam SQL or Dataflow SQL can process streaming data with low latency. BigQuery can also stream data but with higher latency (seconds). Cloud Functions is not ideal for real-time SQL analytics. Dataproc is for batch processing.

Answer

Cloud IoT Core + Cloud Functions + Bigtable

Answer

Cloud Pub/Sub + Dataproc + Cloud Storage

Answer

Cloud Pub/Sub + Cloud Functions + Cloud SQL

Question 14

A company is deploying a global web application with static content (images, CSS, JS) and dynamic API calls. They want to reduce latency for users worldwide. Which TWO services should they combine? (Choose 2)

Accepted Answer

Cloud CDN. Cloud CDN (option B) caches static content (images, CSS, JS) at Google's globally distributed edge points of presence (PoPs), reducing latency for users by serving content from a location closer to them. The External HTTP(S) Load Balancer (option C) is required to front the application and integrate with Cloud CDN, providing global anycast IP, SSL termination, and traffic distribution to backend instances. Together, they enable low-latency delivery of both static and dynamic content by combining edge caching with intelligent load balancing.

Answer

Cloud VPN

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Cloud Armor

Answer

Cloud DNS

Question 15

Google operates its data centers using 100% renewable energy and has committed to running all operations on carbon-free energy 24/7 by 2030. How does this sustainability posture benefit a company that migrates its workloads to Google Cloud?

Accepted Answer

The company's Scope 2 carbon emissions decrease because Google's infrastructure runs on renewable energy and operates more efficiently than typical enterprise data centers.. When a company migrates workloads to Google Cloud, it inherits Google's carbon-free energy procurement for its infrastructure. This directly reduces the company's Scope 2 emissions (indirect emissions from purchased electricity) since Google's data centers are powered by 100% renewable energy and operate with industry-leading efficiency (e.g., average PUE of 1.10). The company does not need to purchase separate offsets or add-ons to realize this benefit.

Answer

Companies must purchase separate carbon offset credits to claim sustainability benefits from using Google Cloud.

Answer

Only companies that purchase the Google Cloud Carbon Footprint add-on receive sustainability benefits.

Answer

Sustainability benefits are only available in specific geographic regions where Google has solar farms.