Microsoft Microsoft Certifications DP-300 Questions & Answers

• Question 131:

  Your company uses Azure Stream Analytics to monitor devices.

  The company plans to double the number of devices that are monitored.

  You need to monitor a Stream Analytics job to ensure that there are enough processing resources to handle the additional load.

  Which metric should you monitor?

  A. Input Deserialization Errors

  B. Late Input Events

  C. Early Input Events

  D. Watermark delay

  Correct Answer: D

  The Watermark delay metric is computed as the wall clock time of the processing node minus the largest watermark it has seen so far. The watermark delay metric can rise due to:

  1.

  Not enough processing resources in Stream Analytics to handle the volume of input events.

  2.

  Not enough throughput within the input event brokers, so they are throttled.

  3.

  Output sinks are not provisioned with enough capacity, so they are throttled.

  Reference: https://docs.microsoft.com/en-us/azure/stream-analytics/stream-analytics-time-handling

• Question 132:

  You have an Azure Stream Analytics job.

  You need to ensure that the job has enough streaming units provisioned.

  You configure monitoring of the SU % Utilization metric.

  Which two additional metrics should you monitor? Each correct answer presents part of the solution.

  NOTE: Each correct selection is worth one point.

  A. Late Input Events

  B. Out of order Events

  C. Backlogged Input Events

  D. Watermark Delay

  E. Function Events

  Correct Answer: CD

  To react to increased workloads and increase streaming units, consider setting an alert of 80% on the SU Utilization metric. Also, you can use watermark delay and backlogged events metrics to see if there is an impact.

  Note: Backlogged Input Events: Number of input events that are backlogged. A non-zero value for this metric implies that your job isn't able to keep up with the number of incoming events. If this value is slowly increasing or consistently nonzero, you should scale out your job, by increasing the SUs.

  Reference: https://docs.microsoft.com/en-us/azure/stream-analytics/stream-analytics-monitoring

• Question 133:

  You have an Azure Databricks resource.

  You need to log actions that relate to changes in compute for the Databricks resource.

  Which Databricks services should you log?

  A. clusters

  B. jobs

  C. DBFS

  D. SSH

  E. workspace

  Correct Answer: E

  Cloud Provider Infrastructure Logs.

  Databricks logging allows security and admin teams to demonstrate conformance to data governance standards within or from a Databricks workspace. Customers, especially in the regulated industries, also need records on activities like:

  1.

  User access control to cloud data storage

  2.

  Cloud Identity and Access Management roles

  3.

  User access to cloud network and compute

  Azure Databricks offers three distinct workloads on several VM Instances tailored for your data analytics workflow-the Jobs Compute and Jobs Light Compute workloads make it easy for data engineers to build and execute jobs, and the All-Purpose Compute workload makes it easy for data scientists to explore, visualize, manipulate, and share data and insights interactively.

  Reference: https://databricks.com/blog/2020/03/25/trust-but-verify-with-databricks.html

• Question 134:

  You are monitoring an Azure Stream Analytics job.

  You discover that the Backlogged input Events metric is increasing slowly and is consistently non-zero.

  You need to ensure that the job can handle all the events.

  What should you do?

  A. Remove any named consumer groups from the connection and use $default.

  B. Change the compatibility level of the Stream Analytics job.

  C. Create an additional output stream for the existing input stream.

  D. Increase the number of streaming units (SUs).

  Correct Answer: D

  Backlogged Input Events: Number of input events that are backlogged. A non-zero value for this metric implies that your job isn't able to keep up with the number of incoming events. If this value is slowly increasing or consistently non-zero, you should scale out your job, by increasing the SUs.

  Reference: https://docs.microsoft.com/en-us/azure/stream-analytics/stream-analytics-monitoring

• Question 135:

  A company plans to use Apache Spark analytics to analyze intrusion detection data.

  You need to recommend a solution to analyze network and system activity data for malicious activities and policy violations. The solution must minimize administrative efforts.

  What should you recommend?

  A. Azure Data Lake Storage

  B. Azure Databricks

  C. Azure HDInsight

  D. Azure Data Factory

  Correct Answer: C

  Azure HDInsight offers pre-made, monitoring dashboards in the form of solutions that can be used to monitor the workloads running on your clusters. There are solutions for Apache Spark, Hadoop, Apache Kafka, live long and process (LLAP), Apache HBase, and Apache Storm available in the Azure Marketplace.

  Note: With Azure HDInsight you can set up Azure Monitor alerts that will trigger when the value of a metric or the results of a query meet certain conditions. You can condition on a query returning a record with a value that is greater than or less than a certain threshold, or even on the number of results returned by a query. For example, you could create an alert to send an email if a Spark job fails or if a Kafka disk usage becomes over 90 percent full.

  Reference: https://azure.microsoft.com/en-us/blog/monitoring-on-azure-hdinsight-part-4-workload-metrics-and-logs/

• Question 136:

  You have an Azure data solution that contains an enterprise data warehouse in Azure Synapse Analytics named DW1.

  Several users execute adhoc queries to DW1 concurrently.

  You regularly perform automated data loads to DW1.

  You need to ensure that the automated data loads have enough memory available to complete quickly and successfully when the adhoc queries run.

  What should you do?

  A. Assign a smaller resource class to the automated data load queries.

  B. Create sampled statistics to every column in each table of DW1.

  C. Assign a larger resource class to the automated data load queries.

  D. Hash distribute the large fact tables in DW1 before performing the automated data loads.

  Correct Answer: C

  The performance capacity of a query is determined by the user's resource class. Smaller resource classes reduce the maximum memory per query, but increase concurrency. Larger resource classes increase the maximum memory per

  query, but reduce concurrency.

  Reference:

  https://docs.microsoft.com/en-us/azure/synapse-analytics/sql-data-warehouse/resource-classes-for- workload-management

• Question 137:

  You have SQL Server on an Azure virtual machine that contains a database named DB1. DB1 contains a table named CustomerPII.

  You need to record whenever users query the CustomerPII table.

  Which two options should you enable? Each correct answer presents part of the solution.

  NOTE: Each correct selection is worth one point.

  A. server audit specification

  B. SQL Server audit

  C. database audit specification

  D. a server principal

  Correct Answer: AC

  An auditing policy can be defined for a specific database or as a default server policy in Azure (which hosts SQL Database or Azure Synapse):

  1.

  A server policy applies to all existing and newly created databases on the server.

  2.

  If server auditing is enabled, it always applies to the database. The database will be audited, regardless of the database auditing settings.

  3.

  Enabling auditing on the database, in addition to enabling it on the server, does not override or change any of the settings of the server auditing. Both audits will exist side by side.

  Note:

  The Server Audit Specification object belongs to an audit. A Database Audit Specification defines which Audit Action Groups will be audited for the specific database in which the specification is created.

  Reference: https://docs.microsoft.com/en-us/azure/azure-sql/database/auditing-overview

• Question 138:

  You have an Azure virtual machine based on a custom image named VM1.

  VM1 hosts an instance of Microsoft SQL Server 2019 Standard.

  You need to automate the maintenance of VM1 to meet the following requirements:

  1.

  Automate the patching of SQL Server and Windows Server.

  2.

  Automate full database backups and transaction log backups of the databases on VM1.

  3.

  Minimize administrative effort. What should you do first?

  A. Enable a system-assigned managed identity for VM1

  B. Register VM1 to the Microsoft.Sql resource provider

  C. Install an Azure virtual machine Desired State Configuration (DSC) extension on VM1

  D. Register VM1 to the Microsoft.SqlVirtualMachine resource provider

  Correct Answer: B

  Automated Patching depends on the SQL Server infrastructure as a service (IaaS) Agent Extension. The SQL Server IaaS Agent Extension (SqlIaasExtension) runs on Azure virtual machines to automate administration tasks. The SQL Server

  IaaS extension is installed when you register your SQL Server VM with the SQL Server VM resource provider.

  Reference:

  https://docs.microsoft.com/en-us/azure/azure-sql/virtual-machines/windows/sql-server-iaas-agent- extension-automate-management

• Question 139:

  You have 50 Azure SQL databases.

  You need to notify the database owner when the database settings, such as the database size and pricing tier, are modified in Azure.

  What should you do?

  A. Create a diagnostic setting for the activity log that has the Security log enabled.

  B. For the database, create a diagnostic setting that has the InstanceAndAppAdvanced metric enabled.

  C. Create an alert rule that uses a Metric signal type.

  D. Create an alert rule that uses an Activity Log signal type.

  Correct Answer: D

  Activity log events - An alert can trigger on every event, or, only when a certain number of events occur. Incorrect Answers:

  C: Metric values - The alert triggers when the value of a specified metric crosses a threshold you assign in either direction. That is, it triggers both when the condition is first met and then afterwards when that condition is no longer being met.

  Reference: https://docs.microsoft.com/en-us/azure/azure-sql/database/alerts-insights-configure-portal

• Question 140:

  You have several Azure SQL databases on the same Azure SQL Database server in a resource group named ResourceGroup1.

  You must be alerted when CPU usage exceeds 80 percent for any database. The solution must apply to any additional databases that are created on the Azure SQL server.

  Which resource type should you use to create the alert?

  A. Resource Groups

  B. SQL Servers

  C. SQL Databases

  D. SQL Virtual Machines

  Correct Answer: C

  There are resource types related to application code, compute infrastructure, networking, storage + databases.

  You can deploy up to 800 instances of a resource type in each resource group.

  Some resources can exist outside of a resource group. These resources are deployed to the subscription, management group, or tenant. Only specific resource types are supported at these scopes.

  Reference:

  https://docs.microsoft.com/en-us/azure/azure-resource-manager/management/resource-providers-and- types