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    which one of the following statements is a characteristic of a relational database? all columns in a table must be of the same data type a row in a table represents a single instance of an entity rows in the same table can contain different columns

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    Professional Development

    Professional Development DP-900 M1

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    12 Qs

    Show Answers See Preview 1. Multiple-choice 30 seconds 5 pts Q.

    How is data in a relational table organized?

    answer choices Rows and Columns Header and Footer

    Pages and Paragraphs

    2. Multiple-choice 45 seconds 5 pts Q.

    Which of the following is an example of unstructured data?

    answer choices

    An Employee table with columns Employee ID, Employee Name, and Employee Designation

    Audio and Video files

    A table within SQL Server database

    3. Multiple-choice 30 seconds 5 pts Q.

    What of the following is an example of a streaming dataset?

    answer choices

    Data from sensors and devices

    Sales data for the past month

    List of employees working for a company

    4. Multiple-choice 30 seconds 5 pts Q.

    Which one of the following tasks is a role of a database administrator?

    answer choices

    Backing up and restoring databases

    Creating dashboards and reports

    Identifying data quality issues

    5. Multiple-choice 30 seconds 5 pts Q.

    Which of the following tools is a visualization and reporting tool?

    answer choices

    SQL Server Management Studio

    Power BI SQL 6. Multiple-choice 30 seconds 5 pts Q.

    Which one of the following roles is not a data job role?

    answer choices

    Systems Administrator

    Database Administrator

    Data Analyst 7. Multiple-choice 30 seconds 5 pts Q.

    Which one of the following statements is a characteristic of a relational database?

    answer choices

    All data must be stored as character strings

    A row in a table represents a single entity

    Different rows in the same table can contain different columns

    8. Multiple-choice 30 seconds 5 pts Q. What is an index? answer choices

    A structure that enables you to locate rows in a table quickly, using an indexed value

    A virtual table based on the result set of a query

    A structure comprising rows and columns that you use for storing data

    9. Multiple-choice 30 seconds 5 pts Q.

    Which of the following services should you use to implement a non-relational database?

    answer choices Azure Cosmos DB Azure SQL Database The Gremlin API 10. Multiple-choice 1 minute 5 pts Q.

    Which of the following is a characteristic of non-relational databases?

    answer choices

    Non-relational databases contain tables with flat fixed-column records

    Non-relational databases require you to use data normalization techniques to reduce data duplication

    Non-relational databases are either schema free or have relaxed schemas

    11. Multiple-choice 1 minute 5 pts Q.

    What is data ingestion?

    answer choices

    The process of transforming raw data into models containing meaningful information

    Analyzing data for anomalies

    Capturing raw data streaming from various sources and storing it

    12. Multiple-choice 30 seconds 5 pts Q.

    Which type of analytics helps answer questions about what has happened in the past?

    answer choices

    Descriptive analytics

    Prescriptive analytics

    Predictive analytics

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    Solved Check your knowledge 1. Which one of the following

    Answer to Solved Check your knowledge 1. Which one of the following

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    Question: Check Your Knowledge 1. Which One Of The Following Statements Is A Characteristic Of A Relational Database? O All Data Must Be Stored As Character Strings A Row In A Table Represents A Single Entity Different Rows In The Same Table Can Contain Different Columns 2. What Is An Index? O A Structure That Enables You To Locate Rows In A Table Quickly, Using An

    data

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    Expert Answer

    Question 1) Answer Option B Reason: Option B is correct and all other options are incorrect because a row in a table is single entity. Where each row o…

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    Transcribed image text: Check your knowledge 1. Which one of the following statements is a characteristic of a relational database? O All data must be stored as character strings A row in a table represents a single entity Different rows in the same table can contain different columns 2. What is an index? O A structure that enables you to locate rows in a table quickly, using an indexed value A virtual table based on the result set of a query 0 A structure comprising rows and columns that you use for storing data 3. Which one of the following statements is a benefit of using a PaaS service, instead of an on-premises system, to run your database management systems? O Increased day-to-day management costs Increased scalability Increased functionality

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    4.8 (4 reviews) Term 1 / 204

    What three main types of workload can be found in a typical modern data warehouse?

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    Definition 1 / 204 - Streaming Data - Batch Data - Relational Data

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    Created by mcconnelljh

    Terms in this set (204)

    What three main types of workload can be found in a typical modern data warehouse?

    - Streaming Data - Batch Data - Relational Data

    A ____________________ is a continuous flow of information, where continuous does not necessarily mean regular or constant.

    data stream

    __________________________ focuses on moving and transforming data at rest.

    Batch processing

    This data is usually well organized and easy to understand. Data stored in relational databases is an example, where table rows and columns represent entities and their attributes.

    Structured Data

    This data usually does not come from relational stores, since even if it could have some sort of internal organization, it is not mandatory. Good examples are XML and JSON files.

    Semi-structured Data

    Data with no explicit data model falls in this category. Good examples include binary file formats (such as PDF, Word, MP3, and MP4), emails, and tweets.

    Unstructured Data

    What type of analysis answers the question "What happened?"

    Descriptive Analysis

    What type of analysis answers the question "Why did it happen?"

    Diagnostic Analysis

    What type of analysis answers the question "What will happen?"

    Predictive Analysis

    What type of analysis answers the question "How can we make it happen?"

    Prescriptive Analysis

    The two main kinds of workloads are ______________ and _________________.

    extract-transform-load (ETL)

    extract-load-transform (ELT)

    ______ is a traditional approach and has established best practices. It is more commonly found in on-premises environments since it was around before cloud platforms. It is a process that involves a lot o data movement, which is something you want to avoid on the cloud if possible due to its resource-intensive nature.

    ETL

    ________ seems similar to ETL at first glance but is better suited to big data scenarios since it leverages the scalability and flexibility of MPP engines like Azure Synapse Analytics, Azure Databricks, or Azure HDInsight.

    ELT

    _______________ is a cloud service that lets you implement, manage, and monitor a cluster for Hadoop, Spark, HBase, Kafka, Store, Hive LLAP, and ML Service in an easy and effective way.

    Azure HDInsight

    _____________ is a cloud service from the creators of Apache Spark, combined with a great integration with the Azure platform.

    Azure Databricks

    ____________ is the new name for Azure SQL Data Warehouse, but it extends it in many ways. It aims to be the comprehensive analytics platform, from data ingestion to presentation, bringing together one-click data exploration, robust pipelines, enterprise-grade database service, and report authoring.

    Azure Synapse Analytics

    A ___________ displays attribute members on rows and measures on columns. A simple ____________ is generally easy for users to understand, but it can quickly become difficult to read as the number of rows and columns increases.

    table

    A _____________ is a more sophisticated table. It allows for attributes also on columns and can auto-calculate subtotals.

    matrix

    Objects in which things about data should be captured and stored are called: ____________.

    A. tables B. entities C. rows D. columns B. entities

    You need to process data that is generated continuously and near real-time responses are required. You should use _________.

    A. batch processing

    B. scheduled data processing

    C. buffering and processing

    D. streaming data processing

    D. streaming data processing

    A. Extract, Transform, Load (ETL)

    B. Extract, Load, Transform (ELT)

    1. Optimize data privacy.

    2. Provide support for Azure Data Lake.

    1 - A 2 - B

    Extract, Transform, Load (ETL) is the correct approach when you need to filter sensitive data before loading the data into an analytical model. It is suitable for simple data models that do not require Azure Data Lake support. Extract, Load, Transform (ELT) is the correct approach because it supports Azure Data Lake as the data store and manages large volumes of data.

    The technique that provides recommended actions that you should take to achieve a goal or target is called _____________ analytics.

    A. descriptive B. diagnostic C. predictive D. prescriptive D. prescriptive A. Tables B. Indexes C. Views D. Keys

    1. Create relationships.

    2. Improve processing speed for data searches.

    3. Store instances of entities as rows.

    4. Display data from predefined queries.

    1 - D 2 - B 3 - A 4 - C

    The process of splitting an entity into more than one table to reduce data redundancy is called: _____________.

    A. deduplication B. denormalization C. normalization D. optimization C. normalization

    Azure SQL Database is an example of ________________ -as-a-service.

    A. platform B. infrastructure

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