Cloud Digital Leader Google Cloud products, services, and solutions Practice Test 6 — 15 Questions

Question 1

Match each Google Cloud migration term to its description.

Accepted Answer

Lift and Shift: Moving applications to the cloud without modification. Correct matches: Lift and Shift moves apps without changes; Replatform optimizes; Refactor re-architects; Migrate for Compute Engine is the VM migration tool. Common confusions include mixing tool names and migration strategies.

Answer

Lift and Shift: Tool for migrating VMs to GCP

Answer

Replatform: Re-architecting applications to be cloud-native

Question 2

A company is running a latency-sensitive application on Compute Engine instances in a single zone. They want to improve availability without sacrificing low latency. Which strategy should they use?

Accepted Answer

Deploy instances in multiple zones within the same region. Deploying instances in multiple zones within the same region provides high availability by distributing workloads across physically separate data centers (zones) while keeping network latency low, as intra-region latency is typically under 1-2 ms. This approach protects against zonal failures without the added latency of cross-region communication, which can be 10-100 ms or more.

Answer

Use Cloud CDN to cache content

Answer

Use larger machine types with more vCPUs

Answer

Deploy instances in multiple regions

Question 3

A startup wants to run a containerized web application that scales to zero when not in use, and only pay for the time the container is processing requests. Which Google Cloud compute service should they choose?

Accepted Answer

Cloud Run. Cloud Run is the correct choice because it is a fully managed serverless compute platform that automatically scales your containerized application to zero when there are no incoming requests. You are billed only for the resources consumed during request processing, measured in 100-millisecond increments, which aligns perfectly with the requirement to pay only for active processing time.

Answer

Google Kubernetes Engine (GKE)

Answer

App Engine Standard Environment

Answer

Compute Engine with autoscaling

Question 4

A multinational corporation needs to establish a private, low-latency connection between their on-premises data center and Google Cloud. The connection must be consistent, reliable, and support at least 10 Gbps throughput. Which solution should they use?

Accepted Answer

Dedicated Interconnect. Dedicated Interconnect provides a direct, private physical connection between an on-premises network and Google Cloud, offering consistent, reliable, low-latency connectivity with throughput options of 10 Gbps or 100 Gbps per link. This meets the requirement for a private, low-latency connection with at least 10 Gbps throughput, as it bypasses the public internet entirely and provides a Service Level Agreement (SLA) for uptime and performance.

Answer

Cloud NAT with static IP addresses

Answer

Partner Interconnect via a service provider

Answer

Cloud VPN using IPsec tunnels over the public internet

Question 5

A company wants to store archival data that must be retained for 10 years. The data is accessed less than once a year. Which Cloud Storage class is the most cost-effective?

Accepted Answer

Archive Storage. Archive Storage is the most cost-effective option for data that must be retained for 10 years and is accessed less than once a year. This class offers the lowest storage cost among Google Cloud Storage classes, specifically designed for long-term preservation of data that is rarely accessed, with a minimum storage duration of 365 days and higher retrieval costs that are acceptable given the infrequent access pattern.

Answer

Standard Storage

Answer

Nearline Storage

Answer

Coldline Storage

Question 6

A developer is building a mobile backend that receives thousands of events per second from IoT devices. The events must be processed in real time and then stored for analysis. Which set of services should they use?

Accepted Answer

Cloud Pub/Sub -> Cloud Dataflow -> BigQuery. Cloud Pub/Sub provides a scalable, fully managed message ingestion service for high-throughput event streams, Cloud Dataflow (based on Apache Beam) enables real-time stream processing with exactly-once semantics and low latency, and BigQuery offers a serverless data warehouse for fast analytical queries on the processed data. This combination handles the requirements of real-time processing and subsequent storage for analysis without operational overhead.

Answer

Cloud IoT Core -> Cloud Storage -> Dataproc

Answer

Cloud Pub/Sub -> Cloud Storage -> BigQuery

Answer

Cloud Pub/Sub -> Cloud Functions -> Cloud SQL

Question 7

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

Answer

Cloud Armor

Answer

Cloud DNS

Question 8

A company uses Cloud Spanner for a global application. They need to ensure high availability and disaster recovery across regions. Which TWO actions should they take? (Choose 2)

Accepted Answer

Schedule regular backups using Cloud Spanner backup feature. Cloud Spanner's built-in backup feature allows you to create consistent backups of your database without impacting performance, and these backups can be restored to a different region for disaster recovery. This provides a reliable way to recover from regional failures or data corruption, ensuring high availability and DR across regions.

Answer

Deploy the database in a single region with backups

Answer

Configure read replicas in a different region

Answer

Use Cloud Memorystore to cache database queries

Question 9

A data team has an IAM policy on a BigQuery dataset as shown. Alice needs to run a query that joins across multiple datasets. She receives a permission error. What is the most likely cause?

Accepted Answer

Alice lacks the jobUser role to run queries. The BigQuery `jobUser` role is required to run query jobs, including those that join across datasets. The IAM policy shown only grants dataset-level permissions (like `dataViewer` or `dataOwner`), but Alice lacks the `jobUser` role at the project level, which is necessary to submit a query job. Without this role, she receives a permission error even if she has read access to the datasets.

Answer

The policy denies all users except Bob

Answer

Alice does not have permission to read the dataset

Answer

Bob’s dataOwner role prevents others from querying

Question 10

A team uses Terraform to create a VPC as shown. They now need to add a Compute Engine instance in the subnet. Which of the following correctly references the subnet?

Accepted Answer

Set `subnetwork = google_compute_subnetwork.subnet.self_link`. When adding a Compute Engine instance to a subnet in Terraform, you must use the `subnetwork` argument (not `network`) and reference the subnet's `self_link` attribute. The `google_compute_subnetwork` resource's `self_link` provides the full URI required by the instance resource to attach to the correct subnet within the VPC.

Answer

Set `network = google_compute_subnetwork.subnet.self_link`

Answer

Set `subnetwork = google_compute_subnetwork.subnet.name`

Answer

Set `network = google_compute_network.vpc.name` and `subnetwork = google_compute_network.vpc.self_link`

Question 11

A company uses Cloud Storage to store backup files. The files are accessed on average once per year. To minimize storage costs while complying with a 365-day retention policy, which storage class should they use?

Accepted Answer

Archive. Archive storage class is the correct choice because it offers the lowest storage cost for data that is accessed less than once per year, while still meeting the 365-day retention policy. Archive has a 365-day minimum storage duration, which aligns perfectly with the retention requirement, and its retrieval costs are acceptable given the infrequent access pattern.

Answer

Coldline

Answer

Nearline

Answer

Standard

Question 12

A company migrated a microservices application to Google Kubernetes Engine (GKE). They set up an internal HTTP(S) load balancer to route traffic to the services. However, some pods are not receiving traffic. What is the most likely cause?

Accepted Answer

The pods have failing readiness probes that are preventing them from being added to the load balancer's backend endpoints.. Readiness probes determine whether a pod is ready to serve traffic. If they fail, the pod is removed from the endpoint list, causing no traffic. Firewall rules for internal load balancers are typically auto-configured.

Answer

The service type is NodePort instead of LoadBalancer.

Answer

The cluster does not have enough nodes to schedule the pods.

Answer

The firewall rules are not allowing traffic from the load balancer to the nodes.

Question 13

A developer needs to grant a service account the minimum permissions required to publish messages to a Pub/Sub topic. Which IAM role should they assign?

Accepted Answer

roles/pubsub.publisher. The `roles/pubsub.publisher` role grants the minimum permissions required to publish messages to a Pub/Sub topic. This role includes the `pubsub.topics.publish` permission, which allows a service account to send messages to a specific topic without granting any other unnecessary permissions like subscribing or managing the topic.

Answer

roles/editor

Answer

roles/pubsub.subscriber

Answer

roles/pubsub.admin

Question 14

A company wants to connect its on-premises network to Google Cloud for consistent low-latency access to resources. They also need to use the same network policies across multiple projects. Which two Google Cloud products should they use?

Accepted Answer

Cloud Interconnect. Cloud Interconnect provides dedicated, low-latency, and consistent connectivity between an on-premises network and Google Cloud, bypassing the public internet. Shared VPC allows the company to centrally define and apply network policies (e.g., firewall rules, routes) across multiple projects from a single host project, ensuring uniform policy enforcement.

Answer

Cloud NAT

Answer

Cloud VPN

Answer

VPC Network Peering

Question 15

A data analytics team uses BigQuery for large-scale queries. They notice that queries are scanning more data than necessary, leading to high costs. Which feature should they implement to reduce the amount of data scanned per query?

Accepted Answer

Partitioning. Partitioning divides a table into segments based on a column (e.g., date), allowing BigQuery to prune partitions during query execution. When a query includes a filter on the partitioning column, BigQuery scans only the relevant partitions, significantly reducing the bytes processed and lowering costs.

Answer

Materialized views

Answer

Streaming inserts

Answer

Clustering