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Práctica de GCP Data Engineer
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Pregunta 1
What is BigQuery?
Selecciona una respuesta
A DNS service A serverless analytics data warehouse An object storage service A messaging service
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BigQuery is a serverless warehouse for analytics. Cloud Storage stores objects, Pub/Sub handles messages, and DNS resolves names.
Pregunta 2
What is Cloud Storage?
Selecciona una respuesta
Object storage for unstructured data A relational database A messaging queue A load balancer
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Cloud Storage stores objects such as files and backups. Databases, queues, and load balancers are different.
Pregunta 3
What is Pub/Sub?
Selecciona una respuesta
A virtual machine A DNS service A scalable messaging service A data warehouse
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Pub/Sub provides asynchronous messaging. Warehouses, VMs, and DNS are different.
Pregunta 4
What is Dataflow?
Selecciona una respuesta
A relational database An object store A CDN A unified stream and batch data processing service
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Dataflow processes batch and streaming data. Databases, object stores, and CDNs are different.
Pregunta 5
What is Dataproc?
Selecciona una respuesta
A data warehouse A messaging service A DNS zone A managed Spark and Hadoop service
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Dataproc runs managed Spark and Hadoop clusters. Warehouses, messaging, and DNS are different.
Pregunta 6
What is Cloud Bigtable?
Selecciona una respuesta
A low-latency NoSQL database A relational database An object store A CDN
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Bigtable is a low-latency NoSQL database for large workloads. Relational databases, object stores, and CDNs are different.
Pregunta 7
What is Cloud SQL?
Selecciona una respuesta
A messaging service A managed relational database service A NoSQL database An object store
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Cloud SQL provides managed relational databases. NoSQL, object storage, and messaging are different.
Pregunta 8
What is Firestore?
Selecciona una respuesta
A data warehouse A CDN A flexible document database A relational database
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Firestore is a document NoSQL database. Relational databases, warehouses, and CDNs are different.
Pregunta 9
What is Cloud Spanner?
Selecciona una respuesta
An object store A messaging queue A globally distributed relational database A document database
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Spanner provides global relational consistency. Document databases, object stores, and queues are different.
Pregunta 10
Match each storage concept to its purpose.
BigQuery Selecciona una respuesta Analytics warehouse Object storage Messaging Low-latency NoSQL Cloud Storage Selecciona una respuesta Analytics warehouse Object storage Messaging Low-latency NoSQL Pub/Sub Selecciona una respuesta Analytics warehouse Object storage Messaging Low-latency NoSQL Bigtable Selecciona una respuesta Analytics warehouse Object storage Messaging Low-latency NoSQL
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BigQuery is a warehouse, Cloud Storage stores objects, Pub/Sub delivers messages, and Bigtable is low-latency NoSQL.
Pregunta 11
Which service is commonly used to build ETL pipelines in Google Cloud?
Selecciona una respuesta
Cloud DNS Cloud CDN Cloud IAM Dataflow
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Dataflow builds ETL pipelines. DNS, CDN, and IAM are different.
Pregunta 12
What is Cloud Composer?
Selecciona una respuesta
A load balancer A workflow orchestration service based on Airflow A data warehouse A messaging queue
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Cloud Composer orchestrates workflows with Airflow. Warehouses, queues, and load balancers are different.
Pregunta 13
What are ephemeral Dataproc clusters?
Selecciona una respuesta
Clusters created for a job and deleted afterward Always-running clusters Data warehouses DNS zones
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Ephemeral clusters exist only for a job to reduce cost. Always-running clusters, warehouses, and DNS zones are different.
Pregunta 14
What is Cloud Scheduler?
Selecciona una respuesta
A storage service A firewall A cron service for scheduled jobs A database
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Cloud Scheduler runs jobs on schedules. Databases, storage, and firewalls are different.
Pregunta 15
What are Cloud Functions?
Selecciona una respuesta
DNS records Event-driven serverless functions Virtual machines Databases
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Cloud Functions run code in response to events. VMs, databases, and DNS records are different.
Pregunta 16
What is a Pub/Sub push subscription?
Selecciona una respuesta
A pull subscription A database A DNS record A subscription that delivers messages to an endpoint
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Push subscriptions send messages to endpoints. Pull subscriptions, databases, and DNS records are different.
Pregunta 17
What can trigger a Cloud Function in Cloud Storage?
Selecciona una respuesta
A DNS query A VM reboot A firewall change Object creation or deletion events
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Cloud Storage events such as object creation can trigger functions. DNS, VM reboots, and firewall changes are different.
Pregunta 18
What are Dataflow templates?
Selecciona una respuesta
DNS records Reusable pipeline configurations Virtual machines Storage buckets
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Templates make Dataflow pipelines reusable. VMs, buckets, and DNS records are different.
Pregunta 19
What is a BigQuery load job?
Selecciona una respuesta
A job that imports data into BigQuery A job that deletes tables A DNS query A backup
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Load jobs import data into BigQuery. Deletion, DNS, and backups are different.
Pregunta 20
Match each pipeline concept to its purpose.
Dataflow Selecciona una respuesta ETL pipeline Workflow orchestration Scheduled jobs Event streaming Composer Selecciona una respuesta ETL pipeline Workflow orchestration Scheduled jobs Event streaming Scheduler Selecciona una respuesta ETL pipeline Workflow orchestration Scheduled jobs Event streaming Pub/Sub Selecciona una respuesta ETL pipeline Workflow orchestration Scheduled jobs Event streaming
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Dataflow processes ETL, Composer orchestrates, Scheduler runs jobs, and Pub/Sub streams events.
Pregunta 21
What is BigQuery ML?
Selecciona una respuesta
A data warehouse A DNS service SQL-based machine learning in BigQuery A notebook service
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BigQuery ML builds models with SQL. Notebooks, warehouses, and DNS are different.
Pregunta 22
What is Vertex AI?
Selecciona una respuesta
A messaging service A relational database A CDN A unified ML platform
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Vertex AI provides end-to-end ML tools. Messaging, databases, and CDNs are different.
Pregunta 23
What is Looker Studio?
Selecciona una respuesta
A dashboard and visualization tool A data warehouse A messaging queue A load balancer
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Looker Studio creates dashboards. Warehouses, queues, and load balancers are different.
Pregunta 24
What are Vertex AI notebooks?
Selecciona una respuesta
A DNS record Code notebooks for data science A database A storage bucket
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Notebooks provide coding environments for ML. Databases, buckets, and DNS records are different.
Pregunta 25
Why split data into training and evaluation sets?
Selecciona una respuesta
To create reports To measure model generalization To increase storage cost To avoid encryption
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Evaluation sets test generalization. Storage cost, encryption, and reports are different.
Pregunta 26
What is batch prediction?
Selecciona una respuesta
Making predictions for many records at once Real-time prediction only A storage job A DNS query
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Batch prediction processes many records offline. Real-time prediction, storage, and DNS are different.
Pregunta 27
What is a feature store?
Selecciona una respuesta
A database for transactions A DNS service A load balancer A central repository for ML features
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Feature stores centralize ML features. Transaction databases, DNS, and load balancers are different.
Pregunta 28
What is a model registry?
Selecciona una respuesta
A firewall A DNS zone A catalog of model versions A storage bucket
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Model registries manage versions and metadata. Buckets, firewalls, and DNS zones are different.
Pregunta 29
What is hyperparameter tuning?
Selecciona una respuesta
Searching for the best model settings Deleting models Encrypting data Creating reports
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Tuning searches hyperparameters. Deletion, encryption, and reports are different.
Pregunta 30
Match each ML concept to its purpose.
BigQuery ML Selecciona una respuesta SQL ML ML platform Dashboards Code notebooks Vertex AI Selecciona una respuesta SQL ML ML platform Dashboards Code notebooks Looker Selecciona una respuesta SQL ML ML platform Dashboards Code notebooks Notebooks Selecciona una respuesta SQL ML ML platform Dashboards Code notebooks
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BigQuery ML uses SQL, Vertex AI is an ML platform, Looker visualizes, and notebooks provide code.
Pregunta 31
Which service controls permissions in Google Cloud?
Selecciona una respuesta
Cloud Storage Cloud CDN Cloud DNS Cloud IAM
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IAM controls access. Storage, CDN, and DNS are different.
Pregunta 32
What is Cloud KMS?
Selecciona una respuesta
A firewall A load balancer A key management service for encryption A database
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KMS manages encryption keys. Databases, firewalls, and load balancers are different.
Pregunta 33
What is Cloud DLP?
Selecciona una respuesta
A DNS service Data loss prevention for sensitive data A data warehouse A messaging queue
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DLP discovers and protects sensitive data. Warehouses, queues, and DNS are different.
Pregunta 34
What is VPC Service Controls?
Selecciona una respuesta
A security perimeter around Google Cloud services A firewall A DNS zone A load balancer
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VPC-SC creates perimeters. Firewalls, DNS zones, and load balancers are different.
Pregunta 35
What is a customer-managed encryption key?
Selecciona una respuesta
A DNS record A firewall rule A key the customer controls in Cloud KMS A Google-managed key
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Customer-managed keys are controlled by the customer. Google-managed keys, DNS, and firewall rules are different.
Pregunta 36
What is a retention policy?
Selecciona una respuesta
A firewall rule A DNS record A load balancer Rules that control how long data is kept
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Retention policies control data lifecycle. Firewall rules, DNS records, and load balancers are different.
Pregunta 37
What are Cloud Audit Logs?
Selecciona una respuesta
Storage buckets Logs of admin and data access activity Application logs only DNS records
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Audit logs record admin and data access. Application logs, DNS records, and buckets are different.
Pregunta 38
What is an organization policy?
Selecciona una respuesta
A policy that constrains resources across the org A firewall A DNS zone A load balancer
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Organization policies enforce constraints. Firewalls, DNS zones, and load balancers are different.
Pregunta 39
Why use private connectivity for data services?
Selecciona una respuesta
To expose services publicly To increase latency To disable encryption To keep traffic inside a private network
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Private connectivity keeps traffic internal. Public exposure, higher latency, and disabled encryption are not security best practices.
Pregunta 40
Match each security concept to its purpose.
IAM Selecciona una respuesta Permissions Keys Sensitive data protection Security perimeter KMS Selecciona una respuesta Permissions Keys Sensitive data protection Security perimeter DLP Selecciona una respuesta Permissions Keys Sensitive data protection Security perimeter VPC-SC Selecciona una respuesta Permissions Keys Sensitive data protection Security perimeter
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IAM grants permissions, KMS manages keys, DLP protects sensitive data, and VPC-SC creates perimeters.
Pregunta 41
What is Cloud Monitoring?
Selecciona una respuesta
Collects metrics and alerts for Google Cloud A data warehouse A DNS service A load balancer
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Cloud Monitoring collects metrics and alerts. Warehouses, DNS, and load balancers are different.
Pregunta 42
What is Cloud Logging?
Selecciona una respuesta
A firewall A CDN Stores and queries logs A database
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Cloud Logging stores logs. Databases, firewalls, and CDNs are different.
Pregunta 43
What is a quota?
Selecciona una respuesta
A dataset A DNS record A limit on resource usage A model
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Quotas limit resource usage. Models, datasets, and DNS records are different.
Pregunta 44
What is object lifecycle management?
Selecciona una respuesta
A load balancer Rules for moving or deleting objects over time A firewall rule A DNS record
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Lifecycle rules manage object retention. Firewall rules, DNS records, and load balancers are different.
Pregunta 45
What is a budget alert?
Selecciona una respuesta
A firewall rule A DNS record A load balancer An alert when spending exceeds a threshold
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Budget alerts monitor spend. Firewall rules, DNS records, and load balancers are different.
Pregunta 46
What is a region?
Selecciona una respuesta
A geographic location for resources A storage bucket A model A DNS record
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Regions are geographic locations. Buckets, models, and DNS records are resources or data.
Pregunta 47
Why use retry policies?
Selecciona una respuesta
To increase latency To handle transient failures To delete data To disable encryption
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Retries handle transient failures. Deletion, disabled encryption, and latency are not retry purposes.
Pregunta 48
What is idempotency?
Selecciona una respuesta
Deleting all data Encrypting files Creating DNS records Repeating an operation produces the same result
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Idempotent operations are safe to repeat. Deletion, encryption, and DNS are different.
Pregunta 49
Why back up data?
Selecciona una respuesta
To disable security To slow queries To recover from loss or corruption To increase cost
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Backups support recovery. Increasing cost, disabling security, and slowing queries are not benefits.
Pregunta 50
Match each reliability concept to its purpose.
Monitoring Selecciona una respuesta Metrics Logs Limits Data retention Logging Selecciona una respuesta Metrics Logs Limits Data retention Quota Selecciona una respuesta Metrics Logs Limits Data retention Lifecycle Selecciona una respuesta Metrics Logs Limits Data retention
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Monitoring collects metrics, Logging stores logs, quotas limit usage, and lifecycle controls retention.
Pregunta 51
What is batch processing?
Selecciona una respuesta
A storage bucket Processing data on a schedule Real-time processing only A DNS query
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Batch processing runs on schedules. Real-time, DNS, and storage are different.
Pregunta 52
What is streaming processing?
Selecciona una respuesta
Processing data nightly A database backup A DNS query Processing data as it arrives
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Streaming processes events as they arrive. Nightly, backups, and DNS are different.
Pregunta 53
What is table partitioning?
Selecciona una respuesta
Splitting a table by a column or date for efficiency Deleting a table Encrypting data Creating reports
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Partitioning improves query efficiency. Deletion, encryption, and reports are different.
Pregunta 54
What is table clustering?
Selecciona una respuesta
A DNS record A firewall Storing related rows together Splitting tables randomly
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Clustering organizes related rows for better queries. Random splits, DNS, and firewalls are different.
Pregunta 55
What is schema evolution?
Selecciona una respuesta
Disabling security Creating reports Changing table schemas as requirements change Deleting all data
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Schema evolution handles changing fields. Deletion, disabled security, and reports are different.
Pregunta 56
What is a data lake?
Selecciona una respuesta
A load balancer A repository for raw data in many formats A highly structured warehouse A DNS service
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Data lakes store raw data. Structured warehouses, DNS, and load balancers are different.
Pregunta 57
What is a star schema?
Selecciona una respuesta
A database backup A firewall rule A DNS record A dimensional model with fact and dimension tables
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Star schemas use facts and dimensions. Backups, firewall rules, and DNS records are different.
Pregunta 58
What is data governance?
Selecciona una respuesta
Policies for data quality, access, and compliance A storage bucket A firewall A load balancer
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Governance defines data policies. Buckets, firewalls, and load balancers are resources.
Pregunta 59
What is Data Catalog?
Selecciona una respuesta
A DNS zone A metadata service for discovering data assets A database A messaging queue
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Data Catalog helps discover metadata. Databases, queues, and DNS zones are different.
Pregunta 60
Match each architecture concept to its purpose.
Batch Selecciona una respuesta Scheduled processing Real-time processing Query efficiency Metadata discovery Streaming Selecciona una respuesta Scheduled processing Real-time processing Query efficiency Metadata discovery Partitioning Selecciona una respuesta Scheduled processing Real-time processing Query efficiency Metadata discovery Data Catalog Selecciona una respuesta Scheduled processing Real-time processing Query efficiency Metadata discovery
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Batch runs on schedules, streaming processes in real time, partitioning improves queries, and Data Catalog discovers metadata.