MCQs

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Overall MCQs for Reference

What is the primary purpose of Looker in Artificial Intelligence?
a. Image processing
b. Data exploration and business intelligence
c. Automated robotics assembly
d. Voice recognition
Answer: b. Data exploration and business intelligenceacte+1
Which language is used for data modeling in Looker?
a. SQL
b. Python
c. LookML
d. R
Answer: c. LookMLcloud.google+1
What is a core benefit of Looker’s semantic layer?
a. Decentralized model editing
b. Single source of truth for metrics
c. Hardware acceleration
d. Only offline use
Answer: b. Single source of truth for metricscloud.google+1
How does Looker integrate with AI applications?
a. Supports only on-premises storage
b. Embedded analytics and API integration
c. Manual data uploads only
d. Blockchain nodes
Answer: b. Embedded analytics and API integrationcoefficient+1
What does Looker Explorer provide?
a. Source code development
b. Interface to build and interact with reports and dashboards
c. Hardware driver updates
d. Network topology design
Answer: b. Interface to build and interact with reports and dashboardsacte
How does LookML help data scientists?
a. Automates neural network design
b. Abstracts SQL complexity for reusable metrics
c. Converts text to speech
d. Fills missing values in datasets
Answer: b. Abstracts SQL complexity for reusable metricscloud.google+1
Which feature allows scheduling automated report delivery in Looker?
a. Data Blocks
b. Looker Scheduler
c. Row-level encryption
d. Chatbot
Answer: b. Looker Scheduleracte
What is a “Look” in Looker terminology?
a. A code module
b. A saved query or report
c. Database join
d. Data connector
Answer: b. A saved query or reportacte
How does Looker support machine learning workflows?
a. Provides built-in ML models only
b. Sends datasets to external ML platforms for advanced analysis
c. Only non-AI analytics
d. No support for ML workflows
Answer: b. Sends datasets to external ML platforms for advanced analysiscoefficient+1
Which is NOT a visualization option in Looker?
a. Funnel Chart
b. Gantt Chart
c. Heatmap
d. Treemap
Answer: b. Gantt Chartacte
What enables Looker’s collaboration on dashboards and reports?
a. Offline export only
b. Real-time sharing and version control
c. Direct SSH access
d. Manual USB transfer
Answer: b. Real-time sharing and version controlcloud.google+1
What is a measure in Looker?
a. A field describing categorical data
b. A field representing a calculation or numerical aggregation
c. Textual note for a dashboard
d. Color selector
Answer: b. A field representing a calculation or numerical aggregationacte
How does Looker’s cache feature benefit users?
a. Secures the database using firewalls
b. Improves response time for repeated queries
c. Deletes old data automatically
d. Monitors CPU temperature
Answer: b. Improves response time for repeated queriesacte
Can Looker perform real-time analytics?
a. Yes, if connected to real-time data sources
b. No, only batch processing
c. Only historical analysis
d. Only on exported data
Answer: a. Yes, if connected to real-time data sourcescloud.google+1
What is a Persistent Derived Table (PDT) in Looker?
a. Exported spreadsheet
b. Precomputed table for performance
c. Graphical image
d. Device driver
Answer: b. Precomputed table for performanceacte
How does Looker support authentication?
a. Only local user accounts
b. Supports SSO, OAuth, LDAP, and Google login
c. USB key only
d. Google Drive access
Answer: b. Supports SSO, OAuth, LDAP, and Google loginacte
What is the Looker Marketplace?
a. App store for mobile devices
b. Repository for custom Looker applications and visualizations
c. Cryptocurrency exchange
d. Analytics for weather data only
Answer: b. Repository for custom Looker applications and visualizationsacte
What feature supports natural language queries in Looker’s AI features?
a. PDF generator
b. Conversational Analytics with Gemini-powered AI
c. Math engine only
d. Plugin store
Answer: b. Conversational Analytics with Gemini-powered AIcloud.google+1
How does Looker handle data security?
a. Access controls, encryption, SSO, and audit trails
b. Data deletion only
c. Only file-based protection
d. None
Answer: a. Access controls, encryption, SSO, and audit trailsacte
What visualization type can show geospatial data in Looker?
a. Audio map
b. Map visualization
c. Pie chart only
d. Console output
Answer: b. Map visualizationacte
How does Looker ensure scalable analytics for large datasets?
a. Only works with Excel files
b. Processing in database with query optimizations
c. Uses local RAM only
d. Parallel GPU computing only
Answer: b. Processing in database with query optimizationscloud.google+1
Which is NOT a valid source Looker can connect to?
a. Google Sheets
b. Apache Spark
c. MySQL
d. Photoshop files
Answer: d. Photoshop filescloud.google+1
What is the function of Looker’s Data Dictionary?
a. Tracks permissions only
b. Central hub for metadata and documentation
c. Antivirus
d. Scheduler for email alerts
Answer: b. Central hub for metadata and documentationacte
How does Looker support version control for data models?
a. Snapshots only
b. Git integration for LookML
c. Windows restore points
d. Blockchain
Answer: b. Git integration for LookMLacte
What is an “Explore” in Looker?
a. External database
b. Curated view of data for interactive analysis
c. Scheduling tool
d. Static PDF report
Answer: b. Curated view of data for interactive analysisacte
How can Looker be used for ad-hoc analytics?
a. Only static dashboards
b. Intuitive dashboards and drag-and-drop interface
c. Requires extensive coding
d. Only with third-party add-ons
Answer: b. Intuitive dashboards and drag-and-drop interfaceacte
What is a derived table in Looker?
a. Chart image
b. Custom table defined in LookML for analytics
c. External CSV download
d. System backup
Answer: b. Custom table defined in LookML for analyticsacte
How can Looker’s API extend its functionalities?
a. By sending marketing emails
b. By integrating external tools and creating custom experiences
c. By defragmenting hard drives
d. By generating low-level system logs
Answer: b. By integrating external tools and creating custom experiencescloud.google+1
What is the advantage of Looker’s block library?
a. Only for emails
b. Provides pre-built templates for analytics use cases
c. Antivirus repository
d. Static data tables
Answer: b. Provides pre-built templates for analytics use casesacte
Which is a security measure in Looker?
a. Encryption at rest and in transit
b. In-browser password manager only
c. Clipboard monitoring
d. Keyboard logging
Answer: a. Encryption at rest and in transitacte
What is Looker’s Action Hub designed for?
a. Data backups
b. Workflow integrations and direct data actions
c. Device management
d. Physical security checks
Answer: b. Workflow integrations and direct data actionsacte
How does Looker approach predictive analytics?
a. Dolls out predictions directly in Looker mobile app
b. Integrates with external predictive and ML tools for forecasts
c. Only descriptive analytics
d. Keyboard macros
Answer: b. Integrates with external predictive and ML tools for forecastscoefficient+1
What does Looker use to manage access permissions?
a. Role-based access control (RBAC)
b. USB key validation
c. Only password prompts
d. Email-only access
Answer: a. Role-based access control (RBAC)acte
How does Looker handle data transformation?
a. Manual coding outside the platform
b. LookML transformations and custom fields
c. Explains errors only
d. Only on import
Answer: b. LookML transformations and custom fieldsacte
What is a key feature of Looker’s SQL Runner?
a. Streaming live video
b. Custom SQL queries for advanced analytics
c. Downloading software drivers
d. Data archiving only
Answer: b. Custom SQL queries for advanced analyticsacte
How does Looker address data governance?
a. Only by deleting logs
b. Centralized metadata, user permissions, and access controls
c. Using floppy disks
d. Only via local user agreements
Answer: b. Centralized metadata, user permissions, and access controlscloud.google+1
How does Looker accelerate AI-powered insights?
a. Manual scripting
b. Uses Google Gemini AI for conversational analytics and instant data exploration
c. Only email notifications
d. Downloadable doc files
Answer: b. Uses Google Gemini AI for conversational analytics and instant data explorationcloud.google+1
What is caching’s impact in Looker?
a. Longer load times
b. Reduces redundant query computations for faster performance
c. Increases database licensing costs
d. Backup to cloud storage
Answer: b. Reduces redundant query computations for faster performanceacte
Which connector does NOT natively exist in Looker?
a. Google BigQuery
b. Amazon Redshift
c. Snowflake
d. VLC Media Player
Answer: d. VLC Media Playercloud.google+1
What is the benefit of Looker’s drag-and-drop interface?
a. Only for hardware engineers
b. Simplifies report building for non-technical users
c. Requires SQL knowledge
d. Restricts dashboard sharing
Answer: b. Simplifies report building for non-technical userscloud.google+1
How does Looker support ETL integration?
a. No support for ETL
b. Seamless integration at the modeling layer
c. By running games
d. Only with direct cable connections
Answer: b. Seamless integration at the modeling layeracte
What visualization library powers Looker dashboards?
a. Plotly only
b. In-house visualizations and templates library
c. Photo editor plug-ins
d. Sass files
Answer: b. In-house visualizations and templates librarycoefficient+1
Can Looker export data for AI model training?
a. Only HTML reports
b. Yes, in CSV, Excel, and other formats
c. Printouts only
d. No export allowed
Answer: b. Yes, in CSV, Excel, and other formatscloud.google+1
What Looker feature supports proactive communication?
a. Loudspeaker alarms
b. Automated alerts and report scheduling
c. Sticky notes
d. System tray popups
Answer: b. Automated alerts and report schedulingacte
How does Looker handle multi-tenancy for analytics?
a. By restricting to one user only
b. With user attributes and permission management
c. Floppy disk login
d. Text message OTP only
Answer: b. With user attributes and permission managementcloud.google+1
Which of the following can you build with Looker?
a. Animation movies
b. Business dashboards and custom applications
c. Only photo galleries
d. Web hosting environments
Answer: b. Business dashboards and custom applicationscloud.google
What is required to enable Looker’s AI-powered features like Conversational Analytics?
a. External purchase only
b. Gemini-powered integration on the platform
c. Download Chrome extension
d. Use Google Sheets only
Answer: b. Gemini-powered integration on the platformcloud.google+1
How does Looker address inconsistent data definitions?
a. No support for this
b. Defines consistent metrics using the semantic layer and LookML
c. Manual user correction only
d. Bluetooth synchronization
Answer: b. Defines consistent metrics using the semantic layer and LookMLcloud.google+1
What is a common use of Looker in AI/ML projects?
a. Data preparation and analysis for machine learning models
b. Hardware repair
c. CRM migration
d. Email hosting
Answer: a. Data preparation and analysis for machine learning modelscloud.google
What role does Looker play in AI project lifecycle management?
a. Only code compilation
b. Bridges data exploration, model integration, and AI-powered insights for decision-makers
c. Task scheduling only
d. Syntax checking for Java
Answer: b. Bridges data exploration, model integration, and AI-powered insights for decision-makerscoefficient+2

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