1.
Every Cluster has a one executor and one or more drivers.
2.
You plan to build a structured streaming solution in Azure Databricks. The solution will count new events in five-minute intervals and report only events that arrive during the interval. The output will be sent to a Delta Lake table. Which output mode should you use?
3.
The first level of parallelization is the ........................ that is a JVM running on a node, typically, one executor instance per node.
4.
A pipeline is a logical grouping of activities that together perform a task
5.
Which of the following statements describes a wide transformations?
6.
What is the Databricks Delta command to display metadata?
7.
How do you infer the data types and column names when you read a JSON file?
8.
In Databricks, maximum of number of Azure Databricks API calls/hour is ........
9.
Azure Databricks is a ................... platform.
10.
In Azure Databricks platform architecture, the web app and cluster manager is part of the ...................
11.
In Databricks, the first user to login and initialize the workspace is the .............
12.
What is an Azure Key Vault-backed secret scope?
13.
Which feature of Spark determines how your code is executed?
14.
Use ............... to remove columns from a DataFrame
15.
Which cluster modes are supported in Azure Databricks?
16.
What happens if the command option("checkpointLocation", pointer-to-checkpoint directory) is not specified?
17.
Each Driver has a number of Slots to which parallelized Tasks can be assigned to it by the Executor.
18.
You can create a cluster without creating a Databricks workspace
19.
A Serverless Pool is self-managed pool of cloud resources that is auto-configured for interactive Spark workloads.
20.
What does Azure Data Lake Storage (ADLS) Passthrough enable?
21.
You are creating a new notebook in Azure Databricks that will support R as the primary language but will also support Scala and SQL. Which switch should you use to switch between languages?
22.
Which statement about the Azure Databricks Data Plane is true?
23.
It is possible to put an Azure Databricks Notebook under Version Control in an Azure Devops repo
24.
A Cluster can have drivers running in parallel.
25.
How do you perform UPSERT in a Delta dataset?
26.
................ automates your release process up to the point where human intervention is needed, by clicking a button.
27.
What's the purpose of linked services in Azure Data Factory?
28.
In Databricks, each workspace is identified by a globally unique 53-bit number, called .................
29.
Spark has optimized sharing data from one worker to another operation by using a format called ............
30.
What sort of pipeline is required in Azure DevOps for creating artifacts used in releases?
31.
Scaling horizontally means .................
32.
You are designing an Azure Databricks table. The table will ingest an average of 20 million streaming events per day. You need to persist the events in the table for use in incremental load pipeline jobs in Azure Databricks. The solution must minimize storage costs and incremental load times. What should you include in the solution?
33.
What is the Python syntax for defining a DataFrame in Spark from an existing Parquet file in DBFS?
34.
Use ................. to return records from a Dataframe to the driver of the cluster
35.
In Azure Databricks, only ............. supports table access control.
36.
...................... is a transactional storage layer designed specifically to work with Apache Spark and Databricks File System (DBFS).
37.
.................. is a unified processing engine that can analyze big data using SQL, machine learning, graph processing, or real-time stream analysis
38.
You are a data engineer implementing a lambda architecture on Microsoft Azure. You use an open-source big data solution to collect, process, and maintain data. The analytical data store performs poorly. You must implement a solution Provide data warehousing, Reduce ongoing management activities and Deliver SQL query responses in less than one second, Which type of cluster should you create?
39.
What happens to Databricks activities (notebook, JAR, Python) in Azure Data Factory if the target cluster in Azure Databricks isn't running when the cluster is called by Data Factory?
40.
Apache Spark Structured Streaming is a fast, scalable, and fault-tolerant stream processing API
41.
In Azure Databricks, You can change the cluster mode after a cluster is created.
42.
In Azure Databricks platform architecture, the ................ contains all the Databricks runtime clusters hosted within the workspace.
43.
In Delta Lake architecture, Which tables provide a more refined view of our data?
44.
................... are groups of computers that are treated as a single computer and handle the execution of commands issued from notebooks.
45.
In Delta Lake architecture, Which tables provide business level aggregates often used for reporting and dashboarding?
46.
............... is a fully-managed version of the open-source Apache Spark analytics and data processing engine.
47.
Which languages are supported in Apache Spark?
48.
In Azure Databricks, the default cluster mode is ...............
49.
............... is a data ingestion and transformation service that allows you to load raw data from over 70 different on-premises or cloud sources.
50.
The first step to using Azure Databricks is to create and deploy a .........................
51.
Use the ............... function to display a small set of rows from a larger DataFrame
52.
In Azure Databricks, ............................. requires at least one Spark worker node in addition to the driver node to execute Spark jobs.
53.
In Azure Databricks, A .................. provide fine-grained sharing for maximum resource utilization and minimum query latencies, it can an run workloads developed in SQL, Python, and R.
54.
To set a Spark configuration property called password to the value of the secret stored in secrets/apps/acme-app/password, Which syntax is correct?
55.
The driver and the executors are
56.
How do you cache data into the memory of the local executor for instant access?
57.
You need to find the average of sales transactions by storefront. Which of the following aggregates would you use?
58.
What is a lambda architecture and what does it try to solve?
59.
Use ........... and .............. to remove duplicate data in a DataFrame
60.
In cluster, each Job is broken down into ..............
61.
How do you create a DataFrame object?
62.
As Azure Limit, the Storage accounts per region per subscription is .............
63.
You create an Azure Databricks cluster and specify an additional library to install. When you attempt to load the library to a notebook, the library in not found. You need to identify the cause of the issue. What should you review?
64.
How can parameters be passed into an Azure Databricks notebook from Azure Data Factory?
65.
How do you list files in DBFS within a notebook?
66.
When creating a new cluster in the Azure Databricks workspace, what happens behind the scenes?
67.
In Azure Databricks, High Concurrency clusters terminates automatically after 120 minutes, by default.
68.
You can read and write data that's stored in Delta Lake by using ............
69.
Which is the correct syntax for overwriting data in Azure Synapse Analytics from a Databricks notebook?
70.
....................... is the in-memory storage format for Spark SQL, DataFrames & Datasets.
71.
You can use your notebook to run a code without attaching it to a cluster
72.
A ............ is a collection of cells to execute code, to render formatted text, or to display graphical visualizations.
73.
You can only run up to ................. concurrent jobs in Databricks workspace
74.
In Delta Lake architecture, Which tables contain raw data ingested from various sources (JSON files, RDBMS data, IoT data, etc.)?
75.
When doing a write stream command, what does the outputMode("append") option do?
76.
You plan to perform batch processing in Azure Databricks once daily. Which type of Databricks cluster should you use?
77.
What is required to specify the location of a checkpoint directory when defining a Delta Lake streaming query?
78.
The supported Databricks notebook format is the ................ file type.
79.
................. is a scalable real-time data ingestion service that processes millions of data in a matter of seconds.
80.
The maximum number of jobs that a Databricks workspace can create in an hour is ..............
81.
In which modes does Azure Databricks provide data encryption?
82.
Databricks was founded by the creators of ..........................
83.
VNet peering is only required if using the standard deployment without VNet injection.
84.
What steps are required to authorize Azure DevOps to connect to and deploy notebooks to a staging or production Azure Databricks workspace?
85.
Which command orders by a column in descending order?
86.
What're the characteristics of the "3 Vs of Big Data"?
87.
............. is currently the most secure way to access Azure data services from Azure Databricks.
88.
In Azure Databricks, You can use both Python 2 and Python 3 notebooks on the same cluster.
89.
Use ............ to select a subset of columns from a DataFrame
90.
In Spark Application, the ................ is the JVM in which our application runs.
91.
In the cluster, the second level of parallelization is the .....................
92.
In Azure Databricks platform architecture, the ................hosts Databricks jobs, notebooks with query results, the cluster manager, web application, Hive metastore, and security access control lists (ACLs) and user sessions.
93.
Delta Lake integrates tightly with Apache Spark, and uses an open format that is based on ....................
94.
Which DataFrame method do you use to create a temporary view?
95.
In Spark Structured Streaming, what method should be used to read streaming data into a DataFrame?
96.
........................ is the authorization system you use to manage access to Azure resources.
97.
As Azure Limit, Virtual Machines (VMs) per subscription per region is ..............
98.
Which method for renaming a DataFrame's column is incorrect?
99.
Which command specifies a column value in a DataFrame's filter? Specifically, filter by a productType column where the value is equal to book?
100.
In Cluster, the first level of parallelization is the .....................
101.
To use your notebook with another cluster, what should you do?
102.
If you create a DataFrame that will read some data from Azure Blob Storage, and then you create another DataFrame by filtering the initial DataFrame. What feature of Spark causes these transformation to be analyzed?
103.
In Databricks, The maximum number of notebooks or execution contexts attached to a cluster is ............
104.
The Delta Lake Architecture is a vast improvement upon the traditional Lambda architecture.
105.
In Azure Databricks, High Concurrency clusters can run workloads developed in Scala.
106.
Driver programs access Apache Spark through a .................... object regardless of deployment location.
107.
What's the primary supported language in Apache Spark?
108.
What are the two prerequisites for connecting Azure Databricks with Azure Synapse Analytics that apply to the Azure Synapse Analytics instance?
109.
Scaling vertically means .................
110.
When using the Column Class, which command filters based on the end of a column value? For example, a column named verb and filtered by words ending with "ing".
111.
How many drivers does a Cluster have?
112.
You have an Azure Databricks workspace named workspace1 in the Standard pricing tier. You need to configure workspace1 to support autoscaling all-purpose clusters. The solution must automatically scale down workers when the cluster is underutilized for three minutes, minimize the time it takes to scale to the maximum number of workers, and minimize costs. What should you do first?
113.
................ is the number of which is determined by the number of cores and CPUs of each node.
114.
...................... takes a step further by removing the human intervention and relying on automated tests to automatically determine whether the build should be deployed into production.
115.
The ............... is a big data processing architecture that combine both batch- and real-time processing methods.
116.
To parallelize work, the unit of distribution is a Spark Cluster. Every Cluster has a Driver and one or more executors. Work submitted to the Cluster is split into what type of object?
117.
You have an Azure Databricks resource. You need to log actions that relate to compute changes triggered by the Databricks resources. Which Databricks services should you log?
118.
..................... allows Azure to terminate the cluster after a specified number of minutes of inactivity.
119.
................. is a fundamental isolation unit in Databricks.
120.
In Azure Databricks, A .................. is recommended for a single user, it can run workloads developed in any language: Python, SQL, R, and Scala.
121.
..................... enables you to capture the audit logs and make then centrally available and fully searchable.
122.
Use the .................... function to display a DataFrame in the Notebook
123.
You can deploy Azure Databricks using ....................
124.
In Databricks, the notebook interface is the .............. program
125.
You can only attach a notebook for a running cluster.
126.
As Azure Limit, Resource groups per subscription is ..............
127.
What command should be issued to view the list of active streams?
128.
In cluster, each parallelized action is referred to as ................
129.
................ is an open-source format, supported by many data platforms, including Azure Synapse Analytics.
130.
In cluster, the results of each Job (parallelized/distributed action) is returned to the ...............
131.
In Azure Databricks, ............................. has no workers and runs Spark jobs on the driver node.
132.
.................. is the blade that you use to assign roles to grant access to Azure resources.
Are you sure, you would like to submit your responses on Azure Databricks Questions and Answers and view your results?
