PCD Matching — 10 Questions

Question 1

Match each Google Cloud service to its primary purpose.

Accepted Answer

Cloud Run: A fully managed compute platform for containerized applications.. Cloud Run deploys containers, Cloud Functions runs event-driven functions, and Cloud Storage stores unstructured objects. Common confusions include swapping the definitions of Cloud Run and Cloud Functions, or mistaking Cloud Storage for a database service like Cloud SQL.

Answer

Cloud Run: A serverless execution environment for building and connecting cloud services.

Answer

Cloud Storage: A fully managed relational database for MySQL, PostgreSQL, and SQL Server.

Question 2

Match each Cloud Storage class to its typical use case.

Accepted Answer

Standard: Frequently accessed data. Cloud Storage classes optimize cost based on access frequency. Standard is for hot data, Nearline for monthly, Coldline for quarterly, and Archive for yearly access. Common mistakes involve confusing the frequency thresholds.

Answer

Standard: Data accessed less than once a year

Answer

Nearline: Data accessed less than once a quarter

Question 3

Match each Kubernetes resource to its function.

Accepted Answer

Pod: The smallest and simplest Kubernetes object. It represents a single instance of a running process in your cluster.. These are fundamental Kubernetes objects for running containerized applications.

Answer

ConfigMap: Stores sensitive data such as passwords, OAuth tokens, and ssh keys.

Answer

Secret: Manages external access to the services in a cluster, typically HTTP.

Answer

Ingress: Allows you to decouple configuration artifacts from image content to keep containerized applications portable.

Question 4

Match each Firebase feature to its description.

Accepted Answer

Cloud Firestore: A NoSQL document database for storing and syncing data in real time.. Firebase features include Cloud Firestore (NoSQL database), Authentication (user login), and Cloud Functions (backend code). Common confusions: mixing NoSQL vs relational, and hosting vs functions.

Answer

Cloud Firestore: A relational database with SQL queries for structured data.

Answer

Firebase Hosting: A Firebase feature for running backend code in response to events.

Question 5

Match each Cloud Logging and Monitoring concept to its definition.

Accepted Answer

Cloud Logging: Collects and stores log data from applications and services.. Correct matches: Cloud Logging handles log data, Cloud Monitoring provides performance insights, Log-based Metrics turn logs into metrics, Error Reporting aggregates errors. Common confusions include swapping Cloud Logging and Cloud Monitoring definitions.

Answer

Cloud Monitoring: Collects and stores log data from applications and services.

Answer

Error Reporting: Provides visibility into the performance, uptime, and health of cloud applications.

Question 6

Match each Cloud CDN feature to its benefit.

Accepted Answer

Caching: Reduces latency by serving content from edge locations. Cloud CDN features like caching, SSL/TLS termination, and compression each provide distinct benefits. Caching reduces latency, SSL/TLS termination improves security, and compression reduces bandwidth. Distractors often mix up these benefits.

Answer

Caching: Improves security by blocking malicious requests

Answer

SSL/TLS termination: Reduces latency by speeding up content delivery

Question 7

Match each command-line tool to its primary use.

Accepted Answer

gcloud: Primary interface for Google Cloud Platform. The correct matches are: gcloud for general GCP management, gsutil for Cloud Storage, kubectl for Kubernetes, and bq for BigQuery. Common confusions include mixing up gcloud with gsutil, or kubectl with bq.

Answer

gcloud: Manage Cloud Storage buckets and objects

Answer

kubectl: Run queries and manage BigQuery datasets

Question 8

Match each Cloud SQL database engine to its description.

Accepted Answer

Cloud SQL for MySQL: Fully managed relational database based on MySQL community edition.. Cloud SQL offers managed relational databases; AlloyDB and Spanner are for higher scale.

Answer

Cloud SQL for MySQL: A globally distributed relational database with strong consistency.

Answer

Cloud SQL for PostgreSQL: A fully managed relational database compatible with PostgreSQL and designed for high-scale analytical workloads.

Question 9

Match each error code to its meaning in Google Cloud.

Accepted Answer

400: The server cannot process the request due to a client error (e.g., malformed syntax).. The correct matches are: 400 = Bad Request, 401 = Unauthorized, 403 = Forbidden. Common confusions involve swapping definitions for similar errors (e.g., 401 vs 403) or misattributing server-side errors to client errors.

Answer

400: The request is unauthorized.

Answer

401: The requested resource was not found.

Answer

403: The server encountered an internal error.

Question 10

Match each IAM role to its description.

Accepted Answer

Viewer: Read-only access to resources. IAM basic roles include Viewer (read-only), Editor (read/write without IAM management), and Owner (full control). The distractors swap these definitions.

Answer

Viewer: Full access to resources

Answer

Editor: Read-only access to resources