[2023] Pass Microsoft DP-300 Test Practice Test Questions Exam Dumps
Verified DP-300 dumps Q&As - DP-300 dumps with Correct Answers
NEW QUESTION # 102
You are building a database backup solution for a SQL Server database hosted on an Azure virtual machine.
In the event of an Azure regional outage, you need to be able to restore the database backups. The solution must minimize costs.
Which type of storage accounts should you use for the backups?
- A. read-access geo-redundant storage (RA-GRS)
- B. locally-redundant storage (LRS)
- C. zone-redundant storage (ZRS)
- D. geo-redundant storage
Answer: A
Explanation:
Section: [none]
Explanation:
Geo-redundant storage (with GRS or GZRS) replicates your data to another physical location in the secondary region to protect against regional outages. However, that data is available to be read only if the customer or Microsoft initiates a failover from the primary to secondary region. When you enable read access to the secondary region, your data is available to be read if the primary region becomes unavailable. For read access to the secondary region, enable read-access geo-redundant storage (RA-GRS) or read-access geo-zone- redundant storage (RA-GZRS).
Incorrect Answers:
A: Locally redundant storage (LRS) copies your data synchronously three times within a single physical location in the primary region. LRS is the least expensive replication option, but is not recommended for applications requiring high availability.
C: Zone-redundant storage (ZRS) copies your data synchronously across three Azure availability zones in the primary region.
D: Geo-redundant storage (with GRS or GZRS) replicates your data to another physical location in the secondary region to protect against regional outages. However, that data is available to be read only if the customer or Microsoft initiates a failover from the primary to secondary region.
Reference:
https://docs.microsoft.com/en-us/azure/storage/common/storage-redundancy
NEW QUESTION # 103
You have an Always On availability group deployed to Azure virtual machines. The availability group contains a database named DB1 and has two nodes named SQL1 and SQL2. SQL1 is the primary replica.
You need to initiate a full backup of DB1 on SQL2.
Which statement should you run?
- A. BACKUP DATABASE DB1 TO URL='https://mystorageaccount.blob.core.windows.net/
mycontainer/DB1.bak' with (NoInit, STATS=5, COMPRESSION); - B. BACKUP DATABASE DB1 TO URL='https://mystorageaccount.blob.core.windows.net/
mycontainer/DB1.bak' with (Differential, STATS=5, COMPRESSION); - C. BACKUP DATABASE DB1 TO URL='https://mystorageaccount.blob.core.windows.net/
mycontainer/DB1.bak' with (COPY_ONLY, STATS=5, COMPRESSION); - D. BACKUP DATABASE DB1 TO URL='https://mystorageaccount.blob.core.windows.net/
mycontainer/DB1.bak' with (File_Snapshot, STATS=5, COMPRESSION);
Answer: C
Explanation:
BACKUP DATABASE supports only copy-only full backups of databases, files, or filegroups when it's executed on secondary replicas. Copy-only backups don't impact the log chain or clear the differential bitmap.
Incorrect Answers:
A: Differential backups are not supported on secondary replicas. The software displays this error because the secondary replicas support copy-only database backups.
Reference:
https://docs.microsoft.com/en-us/sql/database-engine/availability-groups/windows/active-secondaries-backup-on-secondary-replicas-always-on-availability-groups
NEW QUESTION # 104
D18912E1457D5D1DDCBD40AB3BF70D5D
You need to identify the cause of the performance issues on SalesSQLDb1.
Which two dynamic management views should you use? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.
- A. sys.dm_exec_compute_node_errors
- B. sys.dm_tran_locks
- C. sys.dm_pdw_nodes_os_wait_stats
- D. sys.dm_exec_requests
- E. sys.dm_pdw_nodes_tran_locks
- F. sys.dm_cdc_errors
Answer: C,E
Explanation:
SalesSQLDb1 experiences performance issues that are likely due to out-of-date statistics and frequent blocking queries.
A: Use sys.dm_pdw_nodes_tran_locks instead of sys.dm_tran_locks from Azure Synapse Analytics (SQL Data Warehouse) or Parallel Data Warehouse.
E: Example:
The following query will show blocking information.
SELECT
t1.resource_type,
t1.resource_database_id,
t1.resource_associated_entity_id,
t1.request_mode,
t1.request_session_id,
t2.blocking_session_id
FROM sys.dm_tran_locks as t1
INNER JOIN sys.dm_os_waiting_tasks as t2
ON t1.lock_owner_address = t2.resource_address;
Note: Depending on the system you're working with you can access these wait statistics from one of three locations:
sys.dm_os_wait_stats: for SQL Server
sys.dm_db_wait_stats: for Azure SQL Database
sys.dm_pdw_nodes_os_wait_stats: for Azure SQL Data Warehouse
Incorrect Answers:
F: sys.dm_tran_locks returns information about currently active lock manager resources in SQL Server 2019 (15.x). Each row represents a currently active request to the lock manager for a lock that has been granted or is waiting to be granted.
Instead use sys.dm_pdw_nodes_tran_locks.
Reference:
https://docs.microsoft.com/en-us/sql/relational-databases/system-dynamic-management-views/sys-dm-tran-locks-transact-sql
NEW QUESTION # 105
You have SQL Server 2019 on an Azure virtual machine that contains an SSISDB database.
A recent failure causes the master database to be lost.
You discover that all Microsoft SQL Server integration Services (SSIS) packages fail to run on the virtual machine.
Which four actions should you perform in sequence to resolve the issue? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct.
Answer:
Explanation:
1 - Attach the SSISDB database
2 - Turn on the TRUSTWORTHY property and the CLR property
3 - Open the master key for the SSISDB database
4 - Encrypt a copy of the mater key by using the service master key
Reference:
https://docs.microsoft.com/en-us/sql/integration-services/backup-restore-and-move-the-ssis-catalog
NEW QUESTION # 106
You have an Azure SQL database.
You run the following PowerShell script.
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
Reference:
https://docs.microsoft.com/en-us/powershell/module/az.sql/set-azsqldatabasebackupshorttermretentionpolicy?view=azps-7.2.0
https://docs.microsoft.com/en-us/powershell/module/az.sql/set-azsqldatabasebackuplongtermretentionpolicy?view=azps-7.2.0
NEW QUESTION # 107
DRAG DROP
You need to implement statistics maintenance for SalesSQLDb1. The solution must meet the technical
requirements.
Which four actions should you perform in sequence? To answer, move the appropriate actions from the list of
actions to the answer area and arrange them in the correct order.
Select and Place:
Answer:
Explanation:
Section: [none]
Explanation:
Automating Azure SQL DB index and statistics maintenance using Azure Automation:
1. Create Azure automation account (Step 1)
2. Import SQLServer module (Step 2)
3. Add Credentials to access SQL DB
This will use secure way to hold login name and password that will be used to access Azure SQL DB
4. Add a runbook to run the maintenance (Step 3)
Steps:
1. Click on "runbooks" at the left panel and then click "add a runbook"
2. Choose "create a new runbook" and then give it a name and choose "Powershell" as the type of the
runbook and then click on "create"
5. Schedule task (Step 4)
Steps:
1. Click on Schedules
2. Click on "Add a schedule" and follow the instructions to choose existing schedule or create a new
schedule.
Reference:
https://techcommunity.microsoft.com/t5/azure-database-support-blog/automating-azure-sql-db-index-and-
statistics-maintenance-using/ba-p/368974
Question Set 2
NEW QUESTION # 108
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. Hash distribute the large fact tables in DW1 before performing the automated data loads.
- B. Assign a larger resource class to the automated data load queries.
- C. Create sampled statistics to every column in each table of DW1.
- D. Assign a smaller resource class to the automated data load queries.
Answer: B
Explanation:
Section: [none]
Explanation:
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
NEW QUESTION # 109
What should you implement to meet the disaster recovery requirements for the PaaS solution?
- A. Always On availability groups
- B. failover groups
- C. Availability Zones
- D. geo-replication
Answer: B
Explanation:
Section: [none]
Explanation:
Scenario: In the event of an Azure regional outage, ensure that the customers can access the PaaS solution with minimal downtime. The solution must provide automatic failover.
The auto-failover groups feature allows you to manage the replication and failover of a group of databases on a server or all databases in a managed instance to another region. It is a declarative abstraction on top of the existing active geo-replication feature, designed to simplify deployment and management of geo-replicated databases at scale. You can initiate failover manually or you can delegate it to the Azure service based on a user-defined policy.
The latter option allows you to automatically recover multiple related databases in a secondary region after a catastrophic failure or other unplanned event that results in full or partial loss of the SQL Database or SQL Managed Instance availability in the primary region.
Reference:
https://docs.microsoft.com/en-us/azure/azure-sql/database/auto-failover-group-overview Question Set 3
NEW QUESTION # 110
You have an Azure SQL database named DB1 that contains a private certificate named Sales. The private key for Sales is encrypted with a password. You need to change the password for the private key. Which Transact-SQL statement should you run?
- A.
- B.
- C.
- D.
Answer: B
NEW QUESTION # 111
You are designing a dimension table in an Azure Synapse Analytics dedicated SQL pool.
You need to create a surrogate key for the table. The solution must provide the fastest query performance.
What should you use for the surrogate key?
- A. a sequence object
- B. a GUID column
- C. an IDENTITY column
Answer: C
Explanation:
Dedicated SQL pool supports many, but not all, of the table features offered by other databases.
Surrogate keys are not supported. Implement it with an Identity column.
Reference:
https://docs.microsoft.com/en-us/azure/synapse-analytics/sql-data-warehouse/sql-data-warehouse-tablesoverview
NEW QUESTION # 112
You need to implement a solution to notify the administrators. The solution must meet the monitoring requirements.
What should you do?
- A. Create an Azure Monitor alert rule that has a dynamic threshold and assign the alert rule to an action group.
- B. Add a diagnostic setting that logs QueryStoreRuntimeStatistics and streams to an Azure event hub.
- C. Create an Azure Monitor alert rule that has a static threshold and assign the alert rule to an action group.
- D. Add a diagnostic setting that logs Timeouts and streams to an Azure event hub.
Answer: A
Explanation:
Reference:
https://azure.microsoft.com/en-gb/blog/announcing-azure-monitor-aiops-alerts-with-dynamic-thresholds/ This is a case study. Case studies are not timed separately. You can use as much exam time as you would like to complete each case. However, there may be additional case studies and sections on this exam. You must manage your time to ensure that you are able to complete all questions included on this exam in the time provided.
To answer the questions included in a case study, you will need to reference information that is provided in the case study. Case studies might contain exhibits and other resources that provide more information about the scenario that is described in the case study. Each question is independent of the other questions in this case study.
At the end of this case study, a review screen will appear. This screen allows you to review your answers and to make changes before you move to the next section of the exam. After you begin a new section, you cannot return to this section.
Topic 3, ADatum Corporation
To start the case study
To display the first question in this case study, click the Next button. Use the buttons in the left pane to explore the content of the case study before you answer the questions. Clicking these buttons displays information such as business requirements, existing environment, and problem statements. If the case study has an All Information tab, note that the information displayed is identical to the information displayed on the subsequent tabs. When you are ready to answer a question, click the Question button to return to the question.
Overview
ADatum Corporation is a retailer that sells products through two sales channels: retail stores and a website.
Existing Environment
ADatum has one database server that has Microsoft SQL Server 2016 installed. The server hosts three mission-critical databases named SALESDB, DOCDB, and REPORTINGDB.
SALESDB collects data from the stores and the website.
DOCDB stores documents that connect to the sales data in SALESDB. The documents are stored in two different JSON formats based on the sales channel.
REPORTINGDB stores reporting data and contains several columnstore indexes. A daily process creates reporting data in REPORTINGDB from the data in SALESDB. The process is implemented as a SQL Server Integration Services (SSIS) package that runs a stored procedure from SALESDB.
Requirements
Planned Changes
ADatum plans to move the current data infrastructure to Azure. The new infrastructure has the following requirements:
Migrate SALESDB and REPORTINGDB to an Azure SQL database.
Migrate DOCDB to Azure Cosmos DB.
The sales data, including the documents in JSON format, must be gathered as it arrives and analyzed online by using Azure Stream Analytics. The analytics process will perform aggregations that must be done continuously, without gaps, and without overlapping.
As they arrive, all the sales documents in JSON format must be transformed into one consistent format.
Azure Data Factory will replace the SSIS process of copying the data from SALESDB to REPORTINGDB.
Technical Requirements
The new Azure data infrastructure must meet the following technical requirements:
Data in SALESDB must encrypted by using Transparent Data Encryption (TDE). The encryption must use your own key.
SALESDB must be restorable to any given minute within the past three weeks.
Real-time processing must be monitored to ensure that workloads are sized properly based on actual usage patterns.
Missing indexes must be created automatically for REPORTINGDB.
Disk IO, CPU, and memory usage must be monitored for SALESDB.
NEW QUESTION # 113
You have a Microsoft SQL Server database named DB1 that contains a table named Table1.
The database role membership for a user named User1 is shown in the following exhibit.
Use the drop-down menus to select the answer choice that completes each statement based on the information presented in the graphic.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
Reference:
https://docs.microsoft.com/en-us/sql/relational-databases/security/authentication-access/database-level-roles
NEW QUESTION # 114
You need to recommend a configuration for ManufacturingSQLDb1 after the migration to Azure. The solution must meet the business requirements.
What should you include in the recommendation? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
Reference:
https://technet.microsoft.com/windows-server-docs/failover-clustering/deploy-cloud-witness
https://azure.microsoft.com/en-us/support/legal/sla/load-balancer/v1_0/
NEW QUESTION # 115
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have two Azure SQL Database servers named Server1 and Server2. Each server contains an Azure SQL database named Database1.
You need to restore Database1 from Server1 to Server2. The solution must replace the existing Database1 on Server2.
Solution: From Microsoft SQL Server Management Studio (SSMS), you rename Database1 on Server2 as Database2. From the Azure portal, you create a new database on Server2 by restoring the backup of Database1 from Server1, and then you delete Database2.
Does this meet the goal?
- A. Yes
- B. No
Answer: B
Explanation:
Explanation
Instead restore Database1 from Server1 to the Server2 by using the RESTORE Transact-SQL command and the REPLACE option.
Note: REPLACE should be used rarely and only after careful consideration. Restore normally prevents accidentally overwriting a database with a different database. If the database specified in a RESTORE statement already exists on the current server and the specified database family GUID differs from the database family GUID recorded in the backup set, the database is not restored. This is an important safeguard.
Reference:
https://docs.microsoft.com/en-us/sql/t-sql/statements/restore-statements-transact-sql
NEW QUESTION # 116
D18912E1457D5D1DDCBD40AB3BF70D5D
What should you do after a failover of SalesSQLDb1 to ensure that the database remains accessible to SalesSQLDb1App1?
- A. Update the firewall rules of SalesSQLDb1.
- B. Update the connection strings of SalesSQLDb1App1.
- C. Update the users in SalesSQLDb1.
- D. Configure SalesSQLDb1 as writable.
Answer: A
Explanation:
Scenario: SalesSQLDb1 uses database firewall rules and contained database users.
NEW QUESTION # 117
You are provisioning an Azure SQL database in the Azure portal as shown in the following exhibit.
Use the drop-down menus to select the answer choice that completes each statement based on the information presented in the graphic.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
Reference:
https://docs.microsoft.com/en-us/azure/azure-sql/database/serverless-tier-overview
NEW QUESTION # 118
You have an Azure virtual machine named VM1 on a virtual network named VNet1. Outbound traffic from VM1 to the internet is blocked.
You have an Azure SQL database named SqlDb1 on a logical server named SqlSrv1.
You need to implement connectivity between VM1 and SqlDb1 to meet the following requirements:
* Ensure that all traffic to the public endpoint of SqlSrv1 is blocked.
* Minimize the possibility of VM1 exfiltrating data stored in SqlDb1.
What should you create on VNet1?
- A. a service endpoint
- B. an ExpressRoute gateway
- C. a private link
- D. a VPN gateway
Answer: C
Explanation:
Explanation
Azure Private Link enables you to access Azure PaaS Services (for example, Azure Storage and SQL Database) and Azure hosted customer-owned/partner services over a private endpoint in your virtual network.
Traffic between your virtual network and the service travels the Microsoft backbone network. Exposing your service to the public internet is no longer necessary.
Reference:
https://docs.microsoft.com/en-us/azure/private-link/private-link-overview
NEW QUESTION # 119
You have an Azure subscription that contains the resources shown in the following table.
You need to back up db1 to mysqlbackups, and then restore the backup to a new database named db2 that is hosted on SQL1. The solution must ensure that db1 is backed up to a stripe set.
Which three Transact-SQL statements should you execute in sequence? To answer, move the appropriate statements from the list of statements to the answer area and arrange them in the correct order.
Answer:
Explanation:
1 - Create Credential,,,,,,
2 - Backup Database db1,,,,,
3 - Restore Database bd2 From URL=,,,,,
Reference:
https://docs.microsoft.com/en-us/sql/relational-databases/backup-restore/sql-server-backup-to-url?view=sql-server-ver15
NEW QUESTION # 120
You have an on-premises Microsoft SQL Server 2019 database named SQL1 that uses merge replication. You need to migrate SQL1 to Azure. Which service should you use?
- A. Azure SQL Edge
- B. SQL Server on Azure Virtual Machines
- C. Azure SQL Managed instance
- D. Azure SQL Database
Answer: B
NEW QUESTION # 121
You have an Azure subscription that contains an Azure SQL database named SQLDb1. SQLDb1 contains a table named Table1.
You plan to deploy an Azure web app named webapp1 that will export rows in Table1 that have changed.
You need to ensure that webapp1 can identity the changes to Table'. The solution must meet the following requirements:
* Minimize compute times.
* Minimize storage.
Which three actions should you perform in sequence? To answer. move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.
Answer:
Explanation:
Explanation
Graphical user interface, text, application Description automatically generated
NEW QUESTION # 122
You are evaluating the role assignments.
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
Reference:
https://docs.microsoft.com/en-us/azure/role-based-access-control/built-in-roles
NEW QUESTION # 123
You have an Azure subscription that contains an Azure Data Factory version 2 (V2) data factory named df1.
DF1 contains a linked service.
You have an Azure Key vault named vault1 that contains an encryption kay named key1.
You need to encrypt df1 by using key1.
What should you do first?
- A. Remove the linked service from df1.
- B. Disable soft delete on vault1.
- C. Disable purge protection on vault1.
- D. Create a self-hosted integration runtime.
Answer: A
Explanation:
A customer-managed key can only be configured on an empty data Factory. The data factory can't contain any resources such as linked services, pipelines and data flows. It is recommended to enable customer-managed key right after factory creation.
Note: Azure Data Factory encrypts data at rest, including entity definitions and any data cached while runs are in progress. By default, data is encrypted with a randomly generated Microsoft-managed key that is uniquely assigned to your data factory.
Reference:
https://docs.microsoft.com/en-us/azure/data-factory/enable-customer-managed-key
NEW QUESTION # 124
Which windowing function should you use to perform the streaming aggregation of the sales data?
- A. Hopping
- B. Sliding
- C. Session
- D. Tumbling
Answer: D
Explanation:
Explanation
Scenario: The sales data, including the documents in JSON format, must be gathered as it arrives and analyzed online by using Azure Stream Analytics. The analytics process will perform aggregations that must be done continuously, without gaps, and without overlapping.
Tumbling window functions are used to segment a data stream into distinct time segments and perform a function against them, such as the example below. The key differentiators of a Tumbling window are that they repeat, do not overlap, and an event cannot belong to more than one tumbling window.
Timeline Description automatically generated
Reference:
https://github.com/MicrosoftDocs/azure-docs/blob/master/articles/stream-analytics/stream-analytics-window-fun
NEW QUESTION # 125
You have a SQL Server on Azure Virtual Machines instance that hosts a 10-TB SQL database named DB1.
You need to identify and repair any physical or logical corruption in DB1. The solution must meet the following requirements:
* Minimize how long it takes to complete the procedure.
* Minimize data loss.
How should you complete the command? To answer, select the appropriate options in the answer area NOTE:
Each correct selection is worth one point.
Answer:
Explanation:
Explanation
NEW QUESTION # 126
You have an Azure subscription that contains the resources shown in the following table.
You need to back up db1 to mysqlbackups, and then restore the backup to a new database named db2 that is hosted on SQL1. The solution must ensure that db1 is backed up to a stripe set.
Which three Transact-SQL statements should you execute in sequence? To answer, move the appropriate statements from the list of statements to the answer area and arrange them in the correct order.
Answer:
Explanation:
1 - Create credential,,,,,,
2 - BACKUP DATABASE bd1,,,,,,
3 - RESTORE DATABASE db2 FROM URL=,,,,,,,,
Reference:
https://docs.microsoft.com/en-us/sql/relational-databases/backup-restore/sql-server-backup-to-url?view=sql-server-ver15
NEW QUESTION # 127
......
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