Google Professional Cloud Architect Practice Test Questions and Exam Dumps Part1 Q1-20

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Question 1

A company is migrating a customer-facing application to Google Cloud. The application must remain available if an entire zone becomes unavailable. Which architecture should the cloud architect recommend?

  1. Deploy all instances in a single zone with scheduled snapshots
  2. Deploy the application across multiple zones within the same region
  3. Deploy one large instance in the primary zone
  4. Store application data only in a local persistent disk

Correct Answer: 2

Explanation

Deploying application instances across multiple zones in the same Google Cloud region provides resilience against a zonal failure. If one zone becomes unavailable, workloads in another zone can continue serving users. A regional architecture also generally provides lower latency than distributing every component globally when the requirement is only protection against zonal failure. A single-zone deployment creates a single point of failure, while snapshots and local persistent disks do not provide immediate application availability during a zone outage. Therefore, a multi-zone regional architecture is the appropriate design.

Question 2

An organization wants to allow employees to access Google Cloud resources according to their job responsibilities while minimizing excessive permissions. Which approach should the architect recommend?

  1. Grant every employee the Owner role
  2. Create a separate Google Cloud project for every employee
  3. Assign predefined or custom IAM roles containing only the permissions required
  4. Share service account credentials among employees

Correct Answer: 3

Explanation

The principle of least privilege requires users to receive only the permissions necessary to perform their responsibilities. Google Cloud IAM supports predefined roles and custom roles that can provide appropriately scoped permissions. Granting Owner access creates excessive privileges and increases security risk. Creating individual projects does not solve the authorization problem, and sharing service account credentials makes identity tracking and credential management more difficult. Therefore, assigning appropriately scoped predefined or custom IAM roles is the recommended approach for controlling employee access.

Question 3

A web application needs to automatically add or remove compute capacity based on changing traffic levels. Which Google Cloud capability should the architect use?

  1. Managed instance group autoscaling
  2. Cloud Storage lifecycle rules
  3. Cloud DNS forwarding
  4. Cloud Logging sinks

Correct Answer: 1

Explanation

Managed instance group autoscaling can automatically adjust the number of virtual machine instances based on configured signals such as CPU utilization or other supported metrics. This allows an application to respond to changing workloads without requiring administrators to manually add or remove instances. Cloud Storage lifecycle rules manage objects, Cloud DNS forwarding handles DNS queries, and Logging sinks route log data to destinations. Therefore, managed instance group autoscaling is the appropriate capability when compute capacity must dynamically respond to application demand.

Question 4

A company needs to store large amounts of unstructured data such as images, videos, and backup files. The data does not require a traditional relational schema. Which Google Cloud service should be selected?

  1. Cloud SQL
  2. Cloud Spanner
  3. BigQuery
  4. Cloud Storage

Correct Answer: 4

Explanation

Cloud Storage is an object storage service designed for large volumes of unstructured data. It is well suited for objects such as images, videos, documents, archives, and backups. Objects are stored in buckets and can be managed using storage classes and lifecycle policies according to access patterns and retention requirements. Cloud SQL and Cloud Spanner are database services, while BigQuery is primarily designed for analytical workloads. Therefore, Cloud Storage is the appropriate service when the organization needs durable storage for large amounts of unstructured data.

Question 5

An application processes messages asynchronously. The producer and consumer should remain loosely coupled so that temporary differences in processing speed do not cause the producer to fail. Which service is most appropriate?

  1. Cloud Load Balancing
  2. Pub/Sub
  3. Cloud DNS
  4. Cloud Armor

Correct Answer: 2

Explanation

Pub/Sub provides asynchronous messaging that allows producers and consumers to operate independently. A producer can publish messages to a topic without requiring the consumer to process each message immediately. Subscribers can retrieve messages according to their processing capacity, helping absorb temporary workload differences. This architecture reduces tight coupling between application components and supports scalable event-driven systems. Cloud Load Balancing distributes network traffic, Cloud DNS provides name resolution, and Cloud Armor provides security controls. Therefore, Pub/Sub is the appropriate service for asynchronous and decoupled messaging.

Question 6

A company runs a containerized stateless web application and wants Google Cloud to manage the underlying servers while automatically scaling the application based on incoming requests. Which service should the architect recommend?

  1. Compute Engine
  2. Cloud Run
  3. Bare Metal Solution
  4. Cloud VPN

Correct Answer: 2

Explanation

Cloud Run is a fully managed platform for running containerized applications without requiring customers to manage the underlying infrastructure. It can automatically scale application instances according to incoming requests and can scale down when demand decreases. This makes it well suited for stateless HTTP services and APIs packaged as containers. Compute Engine requires management of virtual machines, Bare Metal Solution provides dedicated physical infrastructure for specialized workloads, and Cloud VPN provides network connectivity. Therefore, Cloud Run is the appropriate choice for this scenario.

Question 7

A company wants a globally distributed relational database that provides strong consistency and horizontal scalability for a mission-critical application. Which Google Cloud service best matches these requirements?

  1. Cloud SQL
  2. Firestore
  3. Cloud Spanner
  4. Memorystore

Correct Answer: 3

Explanation

Cloud Spanner is a globally distributed relational database designed to provide strong consistency and horizontal scalability. It is suitable for mission-critical applications that require relational data structures while operating at substantial scale across regions. Cloud SQL provides managed relational databases but is generally intended for workloads with different scaling and geographic requirements. Firestore is a NoSQL document database, while Memorystore provides in-memory caching. Therefore, Cloud Spanner is the service that best matches the combination of global distribution, relational capabilities, strong consistency, and horizontal scalability.

Question 8

A security team wants to prevent unauthorized network traffic from reaching virtual machine instances based on source, destination, protocol, and port information. Which Google Cloud feature should be configured?

  1. Cloud Scheduler
  2. VPC firewall rules
  3. Cloud Storage IAM
  4. BigQuery reservations

Correct Answer: 2

Explanation

VPC firewall rules control network traffic to and from resources in a Google Cloud VPC network. Rules can be defined using attributes such as source ranges, target resources, protocols, and ports, allowing organizations to control which traffic is permitted. This provides an important network-level security control for virtual machine workloads. Cloud Scheduler is used to trigger jobs, Cloud Storage IAM controls access to storage resources, and BigQuery reservations manage analytical capacity. Therefore, VPC firewall rules are appropriate for controlling network traffic to VM instances.

Question 9

A data analytics team needs to run SQL queries over very large datasets without managing database servers or provisioning traditional database infrastructure. Which service should the architect recommend?

  1. BigQuery
  2. Cloud SQL
  3. Memorystore
  4. Filestore

Correct Answer: 1

Explanation

BigQuery is a fully managed, serverless data warehouse designed for large-scale analytical workloads using SQL. It allows organizations to analyze substantial datasets without managing database servers, operating systems, or traditional storage infrastructure. BigQuery separates compute and storage and is designed to scale analytical processing according to workload requirements. Cloud SQL is intended for managed relational application databases, Memorystore provides in-memory caching, and Filestore provides managed file storage. Therefore, BigQuery is the appropriate service for serverless SQL analytics over very large datasets.

Question 10

An application needs temporary, high-speed access to frequently requested database results to reduce repeated database queries. Which Google Cloud service is designed for this use case?

  1. Cloud Storage
  2. Cloud CDN
  3. Memorystore
  4. Cloud Build

Correct Answer: 3

Explanation

Memorystore provides managed in-memory data stores that can be used for caching frequently accessed information. By keeping temporary data in memory, applications can retrieve it much faster than repeatedly querying a persistent database. This can reduce database load and improve application response times for appropriate workloads. Cloud Storage is object storage, Cloud CDN caches content closer to users at network edges, and Cloud Build supports build automation. Therefore, Memorystore is the appropriate service when an application needs a managed in-memory cache for database results.

Question 11

A company wants to expose an HTTP application globally while distributing user requests across healthy application backends and using a single public endpoint. Which Google Cloud service should be used?

  1. Cloud Load Balancing
  2. Cloud Logging
  3. Cloud NAT
  4. Secret Manager

Correct Answer: 1

Explanation

Cloud Load Balancing distributes incoming traffic across application backends and can provide a single frontend endpoint for clients. Depending on the load balancer type and architecture, traffic can be distributed across regions or zones, helping improve availability and scalability. Health checks can be used to determine whether backends are able to receive traffic. Cloud Logging collects logs, Cloud NAT provides outbound connectivity for private resources, and Secret Manager stores sensitive information. Therefore, Cloud Load Balancing is appropriate for globally distributing HTTP application traffic across healthy backends.

Question 12

A workload running on virtual machines in a private subnet needs outbound access to the internet for software updates, but the VMs should not have external IP addresses. Which service should the architect use?

  1. Cloud Interconnect
  2. Cloud NAT
  3. Cloud VPN
  4. Cloud DNS

Correct Answer: 2

Explanation

Cloud NAT allows resources without external IP addresses to initiate outbound connections to the internet. This is useful for private virtual machines that need to download updates, access external APIs, or communicate with public services without being directly reachable from the internet. Cloud Interconnect provides dedicated connectivity to external networks, Cloud VPN creates encrypted network tunnels, and Cloud DNS provides DNS services. Therefore, Cloud NAT is the appropriate solution when private VMs require outbound internet access without assigning them external IP addresses.

Question 13

A company needs to store database passwords and API credentials securely and retrieve them programmatically from applications. Which Google Cloud service should be recommended?

  1. Secret Manager
  2. Cloud Monitoring
  3. Cloud Trace
  4. Cloud Scheduler

Correct Answer: 1

Explanation

Secret Manager is designed to securely store, manage, and access sensitive information such as passwords, API keys, certificates, and other application credentials. Applications can retrieve secrets programmatically while access can be controlled through IAM permissions. Storing sensitive credentials directly in source code or configuration files increases the risk of accidental exposure. Cloud Monitoring is used for metrics and observability, Cloud Trace helps analyze application latency, and Cloud Scheduler runs scheduled tasks. Therefore, Secret Manager is the appropriate service for securely managing application secrets.

Question 14

A company wants to deploy an application globally but needs users to connect to the nearest available regional backend to reduce network latency. Which architectural approach should be considered?

  1. Single-zone deployment
  2. Multi-region deployment with global load balancing
  3. Single VM with a larger machine type
  4. Local persistent disk replication only

Correct Answer: 2

Explanation

A multi-region deployment combined with global load balancing can direct users toward suitable regional backends and improve application availability and latency. Deploying application components in multiple geographic regions also provides resilience against regional failures when designed appropriately. A single-zone deployment provides limited fault tolerance, increasing VM size does not distribute the application geographically, and local disk replication alone does not provide global application availability. Therefore, a multi-region architecture with global load balancing is appropriate when the application must serve a geographically distributed user base efficiently.

Question 15

An organization wants to continuously evaluate its cloud environment for configuration risks and receive recommendations that can improve security and reliability. Which Google Cloud service is most appropriate?

  1. Cloud Profiler
  2. Security Command Center
  3. Cloud Scheduler
  4. Cloud Shell

Correct Answer: 2

Explanation

Security Command Center provides centralized security and risk-management capabilities for Google Cloud environments. It can help organizations identify security findings, misconfigurations, vulnerabilities, and other risks depending on the enabled services and configuration. This allows security teams to gain visibility into potential problems and prioritize remediation. Cloud Profiler focuses on application performance profiling, Cloud Scheduler runs scheduled jobs, and Cloud Shell provides an interactive command-line environment. Therefore, Security Command Center is the most appropriate service for centralized cloud security and risk visibility.

Question 16

A development team needs an automated process that builds container images whenever source code changes and then stores the resulting images in a managed container registry. Which combination is appropriate?

  1. Cloud Build and Artifact Registry
  2. Cloud DNS and Cloud Storage
  3. BigQuery and Pub/Sub
  4. Cloud NAT and Cloud VPN

Correct Answer: 1

Explanation

Cloud Build can automate application builds and container image creation based on source-code changes or configured triggers. Artifact Registry provides managed repositories for storing container images and other supported software artifacts. Together, these services support a common continuous integration workflow in which source changes trigger a build and the resulting image is stored in a centralized repository for later deployment. The other combinations do not provide the required build and artifact-management capabilities. Therefore, Cloud Build with Artifact Registry is the appropriate solution.

Question 17

A company needs to migrate an existing PostgreSQL database to Google Cloud while minimizing application changes and continuing to use a familiar relational database engine. Which service is a suitable target?

  1. Bigtable
  2. Cloud SQL for PostgreSQL
  3. Firestore
  4. BigQuery

Correct Answer: 2

Explanation

Cloud SQL for PostgreSQL provides a managed PostgreSQL database environment in Google Cloud. It is suitable when an existing PostgreSQL application needs to move to a managed service while retaining PostgreSQL compatibility and minimizing application redesign. Google manages many infrastructure and operational tasks, reducing the administrative burden associated with self-managed database servers. Bigtable and Firestore are NoSQL services, while BigQuery is intended primarily for analytics rather than transactional PostgreSQL workloads. Therefore, Cloud SQL for PostgreSQL is an appropriate migration target for this scenario.

Question 18

A company has a large number of files in Cloud Storage that are rarely accessed but must be retained for compliance. Which approach can reduce storage costs while maintaining long-term retention?

  1. Store all objects permanently in Standard storage
  2. Use an appropriate Cloud Storage archival storage class
  3. Move all files into Memorystore
  4. Store the files in Cloud DNS

Correct Answer: 2

Explanation

Cloud Storage provides multiple storage classes designed for different access patterns. Data that is rarely accessed but must be retained for long periods can often use an archival-oriented storage class, which can reduce storage costs compared with frequently accessed storage. The architect should also consider retrieval requirements, minimum storage durations, and applicable operational constraints before selecting the class. Standard storage is intended for more frequent access, while Memorystore is an in-memory caching service and Cloud DNS is unrelated to file storage. Therefore, an appropriate archival storage class is the suitable approach.

Question 19

An application running on Google Cloud needs to call another Google Cloud service without storing long-lived service account keys in the application environment. What should the architect recommend?

  1. Store a service account JSON key in the source repository
  2. Use an attached service account and Application Default Credentials
  3. Share an administrator’s password with the application
  4. Embed OAuth credentials directly in application code

Correct Answer: 2

Explanation

Using an attached service account with Application Default Credentials allows applications running on Google Cloud resources to obtain credentials through the platform without requiring long-lived service account key files. IAM permissions can then be granted to the service account according to the application’s actual requirements. This approach reduces the risks associated with distributing and storing static credentials. Storing JSON keys in source repositories or embedding credentials in application code creates significant security concerns. Therefore, an attached service account with Application Default Credentials is the recommended approach.

Question 20

A company needs a managed NoSQL document database for a mobile application where data is organized into documents and collections and clients may need real-time synchronization. Which Google Cloud service should be considered?

  1. Cloud Spanner
  2. Cloud SQL
  3. Firestore
  4. BigQuery

Correct Answer: 3

Explanation

Firestore is a managed NoSQL document database designed for applications that store data as documents organized into collections. It supports application-development scenarios involving mobile and web clients and provides features suitable for real-time data synchronization. Cloud Spanner and Cloud SQL are relational database services, while BigQuery is designed for large-scale analytical workloads rather than operational document storage. Therefore, Firestore is the appropriate service to consider when an application requires a managed document-oriented database with capabilities suited to real-time client experiences.