Databricks Certification Practice Test 07

Practice Test 07

Question 1 of 50

🔘 Multi-Select (Select all that apply)

Question 111

## Question 111 A company wants to improve reliability of production ETL pipelines. Which TWO practices should be implemented?

✓

A. Data Quality Checks

B. Manual Execution

C. Monitoring & Alerting

D. Random Sampling

Answer

✅ A, C

Explanation

Data quality checks prevent bad data. Monitoring and alerting help detect failures quickly. ---

Answered: 0 / 50

Databricks Certification Practice Test 07

Practice Test 07

Insightful Saga — Modern Data Engineering Certification Preparation

Question 111

## Question 111 A company wants to improve reliability of production ETL pipelines. Which TWO practices should be implemented?

A. Data Quality Checks

B. Manual Execution

C. Monitoring & Alerting

D. Random Sampling

Answer: ✅ A, C

Explanation:

Data quality checks prevent bad data. Monitoring and alerting help detect failures quickly. ---

Question 112

## Question 112 Which TWO actions trigger Spark execution?

A. select()

B. filter()

C. count()

D. collect()

Answer: ✅ C, D

Explanation:

count() and collect() are actions. Spark executes the DAG only when an action occurs. ---

Question 113

## Question 113 Which TWO operations are considered wide transformations?

A. groupBy()

B. join()

C. select()

D. withColumn()

Answer: ✅ A, B

Explanation:

Wide transformations require shuffling data between partitions. ---

Question 114

## Question 114 Which TWO metrics should a Data Engineer monitor during workload tuning?

A. Shuffle Read

B. Shuffle Write

C. Notebook Font

D. Dashboard Color

Answer: ✅ A, B ---

Question 115

## Question 115 A company wants code promotions from Dev → QA → Prod. Which TWO capabilities support this process?

A. Repos

B. Git Branching

C. Photon

D. SQL Warehouse

Answer: ✅ A, B ---

Question 116

## Question 116 Which TWO benefits are provided by Delta Live Tables?

A. Data Quality Enforcement

B. Pipeline Management

C. Driver Scaling

D. Dashboard Creation

Answer: ✅ A, B ---

Question 117

## Question 117 A Data Engineer wants to reduce cloud costs. Which TWO actions are recommended?

A. Auto Termination

B. Right Sizing Clusters

C. Duplicate Tables

D. Increase Executors Permanently

Answer: ✅ A, B ---

Question 118

## Question 118 Which TWO datasets are usually suitable for caching?

A. Frequently Reused Lookup Tables

B. Intermediate Results Reused Multiple Times

C. One-Time Reads

D. Archived Data

Answer: ✅ A, B ---

Question 119

## Question 119 A Spark job processes customer records. Which TWO factors can cause performance degradation?

A. Skewed Partitions

B. Excessive Shuffle

C. Proper Partitioning

D. Predicate Pushdown

Answer: ✅ A, B ---

Question 120

## Question 120 Which TWO activities belong to Data Governance?

A. Access Control

B. Data Classification

C. Repartitioning

D. Broadcasting

Answer: ✅ A, B ---

Question 121

## Question 121 Which TWO features help improve discoverability of datasets?

A. Business Metadata

B. Data Catalog

C. VACUUM

D. Photon

Answer: ✅ A, B ---

Question 122

## Question 122 Which TWO attributes make a dataset trusted?

A. High Data Quality

B. Clear Ownership

C. Large File Size

D. More Partitions

Answer: ✅ A, B ---

Question 123

## Question 123 A company wants to audit data access. Which TWO details are important?

A. Who accessed data

B. When access occurred

C. Notebook Theme

D. Cluster Color

Answer: ✅ A, B ---

Question 124

## Question 124 Which TWO tasks are commonly automated in ETL platforms?

A. Scheduling

B. Retry Logic

C. Manual Approvals

D. Documentation Writing

Answer: ✅ A, B ---

Question 125

## Question 125 Which TWO indicators suggest a pipeline requires optimization?

A. Growing Runtime

B. Increasing Resource Usage

C. Smaller Input Volumes

D. Better SLA Compliance

Answer: ✅ A, B ---

Question 126

## Question 126 Which TWO benefits come from partition pruning?

A. Reduced Data Scan

B. Faster Query Execution

C. Increased Storage

D. More Metadata

Answer: ✅ A, B ---

Question 127

## Question 127 A production deployment failed. Which TWO capabilities help rollback changes?

A. Git Version Control

B. Release Management

C. Dashboard Filters

D. Photon

Answer: ✅ A, B ---

Question 128

## Question 128 Which TWO characteristics are associated with streaming systems?

A. Continuous Processing

B. Low Latency

C. Annual Refreshes

D. Manual Loads

Answer: ✅ A, B ---

Question 129

## Question 129 Which TWO business benefits come from data lineage?

A. Faster Impact Analysis

B. Easier Troubleshooting

C. Larger Clusters

D. More Workers

Answer: ✅ A, B ---

Question 130

## Question 130 An organization follows medallion architecture. Which TWO responsibilities belong in Gold?

A. Business KPIs

B. Aggregated Metrics

C. Raw Files

D. Source Backups

Answer: ✅ A, B ---

Question 131

## Question 131 Which TWO techniques help reduce data duplication?

A. Master Data Management

B. Standardized Data Sources

C. More Copies

D. More Tables

Answer: ✅ A, B ---

Question 132

## Question 132 Which TWO things should a support engineer check first when a workflow fails?

A. Error Logs

B. Failed Task Details

C. Dashboard Layout

D. Notebook Colors

Answer: ✅ A, B ---

Question 133

## Question 133 A company wants SLA compliance. Which TWO metrics are most important?

A. Pipeline Runtime

B. Pipeline Success Rate

C. Screen Resolution

D. Notebook Size

Answer: ✅ A, B ---

Question 134

## Question 134 Which TWO practices improve maintainability?

A. Modular Code

B. Reusable Functions

C. Duplicate Logic

D. Hardcoded Values

Answer: ✅ A, B ---

Question 135

## Question 135 Which TWO characteristics define a production-ready pipeline?

A. Monitoring

B. Error Handling

C. Random Processing

D. No Logging

Answer: ✅ A, B ---

Question 136

## Question 136 Which TWO activities are part of root cause analysis?

A. Log Investigation

B. Dependency Review

C. Ignoring Errors

D. Restart Everything

Answer: ✅ A, B ---

Question 137

## Question 137 Which TWO factors influence cluster sizing?

A. Data Volume

B. Concurrency

C. Notebook Font

D. Dashboard Theme

Answer: ✅ A, B ---

Question 138

## Question 138 A data product is consumed by multiple teams. Which TWO things should exist?

A. Documentation

B. Data Owner

C. Random Naming

D. Local Spreadsheets

Answer: ✅ A, B ---

Question 139

## Question 139 Which TWO goals are achieved through standard schemas?

A. Easier Integration

B. Consistency

C. More Duplicates

D. More Failures

Answer: ✅ A, B ---

Question 140

## Question 140 Which TWO areas should be included in production monitoring?

A. Resource Utilization

B. Job Failures

C. Keyboard Shortcuts

D. Browser Settings

Answer: ✅ A, B ---

Question 141

## Question 141 Which TWO symptoms suggest under-partitioning?

A. Large Tasks

B. Long Processing Time

C. Empty Tables

D. Missing Catalogs

Answer: ✅ A, B ---

Question 142

## Question 142 Which TWO activities improve platform security?

A. Least Privilege Access

B. Regular Access Reviews

C. Shared Credentials

D. Open Permissions

Answer: ✅ A, B ---

Question 143

## Question 143 Which TWO practices improve data trustworthiness?

A. Validation Rules

B. Data Ownership

C. Duplicate Definitions

D. Untracked Changes

Answer: ✅ A, B ---

Question 144

## Question 144 Which TWO reasons justify workflow retries?

A. Temporary Network Issues

B. Transient Cloud Errors

C. Bad Business Logic

D. Missing Requirements

Answer: ✅ A, B ---

Question 145

## Question 145 Which TWO items should be documented for datasets?

A. Refresh Frequency

B. Business Definition

C. Cluster Wallpaper

D. Notebook Background

Answer: ✅ A, B ---

Question 146

## Question 146 Which TWO principles support Data Mesh initiatives?

A. Domain Ownership

B. Self-Service Data Platforms

C. Centralized Spreadsheets

D. Manual Data Requests

Answer: ✅ A, B ---

Question 147

## Question 147 Which TWO indicators show healthy operations?

A. Stable Runtime

B. Low Failure Rate

C. Rising Incidents

D. Frequent Outages

Answer: ✅ A, B ---

Question 148

## Question 148 Which TWO components should be considered before deleting production data?

A. Downstream Dependencies

B. Retention Policies

C. Notebook Theme

D. Dashboard Style

Answer: ✅ A, B ---

Question 149

## Question 149 Which TWO benefits come from reusable ETL frameworks?

A. Reduced Development Time

B. Consistent Standards

C. More Manual Work

D. Duplicate Logic

Answer: ✅ A, B ---

Question 150

## Question 150 Which TWO skills are most important for a Senior Data Engineer?

A. System Design

B. Troubleshooting

C. Dashboard Coloring

D. PowerPoint Animations

Answer: ✅ A, B ---

Question 151

## Question 151 A global retail company processes customer transactions from stores located in 50 countries. The company currently experiences the following issues: - Duplicate customer records - Inconsistent product naming - Missing customer identifiers - Frequent downstream reporting failures The data engineering team is redesigning the Silver layer to improve overall data quality and reliability. Which actions should be implemented?

Remove duplicate records

Standardize product names

Validate mandatory fields

Build executive dashboards

Apply business quality rules

Store raw files unchanged

Answer: ✅ Remove duplicate records ✅ Standardize product names ✅ Validate mandatory fields ✅ Apply business quality rules

Explanation:

Silver layer responsibilities include: - Cleansing - Deduplication - Standardization - Validation - Data quality enforcement Executive dashboards belong to Gold. Raw files belong to Bronze.

Question 152

Question 152 A large airline company runs a nightly Databricks workflow that occasionally misses its SLA because processing times fluctuate significantly between executions. Investigation reveals: Uneven data distribution Large shuffle operations Rapid growth in data volume Which actions may help improve performance? Review partition strategy Analyze shuffle metrics Investigate skewed keys Increase dashboard refresh rate Evaluate Adaptive Query Execution Rename notebook files

Answer: ✅ Review partition strategy ✅ Analyze shuffle metrics ✅ Investigate skewed keys ✅ Evaluate Adaptive Query Execution

Explanation:

All four actions directly address Spark execution bottlenecks.

Question 153

Question 153 A healthcare company stores highly sensitive patient information in Databricks. Security auditors require stronger governance controls. Which controls should be considered? Least privilege access Data classification Access auditing Open permissions for all users Periodic access reviews Shared administrator accounts

Answer: ✅ Least privilege access ✅ Data classification ✅ Access auditing ✅ Periodic access reviews

Explanation:

These are standard governance and security controls for regulated environments.

Question 154

Question 154 A newly hired Data Engineer reviews an ETL framework that is used by dozens of pipelines across the organization. The engineering manager wants future pipelines to be easier to maintain. Which practices support maintainability? Modular code Reusable components Consistent naming conventions Copy-paste transformations Documentation standards Hardcoded parameters

Answer: ✅ Modular code ✅ Reusable components ✅ Consistent naming conventions ✅ Documentation standards

Question 155

Question 155 An e-commerce company plans to create a trusted enterprise data platform. Business users often complain that reports from different departments show different revenue numbers. Which actions help establish a trusted data foundation? Define common business metrics Assign dataset ownership Implement data quality validation Allow independent metric definitions Document data definitions Eliminate governance reviews

Answer: ✅ Define common business metrics ✅ Assign dataset ownership ✅ Implement data quality validation ✅ Document data definitions

Question 156

Question 156 A support engineer is troubleshooting a failed production workflow. Which information should be reviewed first? Error messages Task execution history Pipeline logs Cluster resource utilization User profile pictures Dashboard color themes

Answer: ✅ Error messages ✅ Task execution history ✅ Pipeline logs ✅ Cluster resource utilization

Question 157

Question 157 A manufacturing company expects IoT data volume to triple during the next year. The architecture team wants to ensure scalability. Which factors should be evaluated? Growth projections Storage strategy Processing capacity Cost management Employee parking spaces Office seating plans

Answer: ✅ Growth projections ✅ Storage strategy ✅ Processing capacity ✅ Cost management

Question 158

Question 158 A company wants better operational visibility across all production pipelines. Which capabilities should be implemented? Alerting Monitoring dashboards SLA tracking Failure notifications Random notebook execution Manual health checks only

Answer: ✅ Alerting ✅ Monitoring dashboards ✅ SLA tracking ✅ Failure notifications

Question 159

Question 159 A global bank is preparing for a regulatory audit. Which metadata information would auditors likely consider valuable? Data owners Data lineage Access history Dataset classifications Wallpaper configuration Browser themes

Answer: ✅ Data owners ✅ Data lineage ✅ Access history ✅ Dataset classifications

Question 160

Question 160 A company wants to build data products that can be safely consumed by multiple business units. Which characteristics should those products have? Clear ownership Documentation Quality controls Defined SLAs Unknown refresh schedule Inconsistent schema

Answer: ✅ Clear ownership ✅ Documentation ✅ Quality controls ✅ Defined SLAs ------ --- title: Databricks Certification Practice Test 08 description: Select All That Apply - Advanced Scenario Questions ---