Nov-2021 Latest ExamcollectionPass DP-300 Exam Dumps with PDF and Exam Engine Free Updated Today!
Following are some new DP-300 Real Exam Questions!
NEW QUESTION 72
HOTSPOT
You have an Azure SQL database that contains a table named Customer. Customer has the columns shown in the following table.
You plan to implement a dynamic data mask for the Customer_Phone column. The mask must meet the following requirements:
* The first six numerals of each customer's phone number must be masked.
* The last four digits of each customer's phone number must be visible.
* Hyphens must be preserved and displayed.
How should you configure the dynamic data mask? To answer, select the appropriate options in the answer area.
Hot Area:
Answer:
Explanation:
Section: [none]
Explanation:
Box 1: 0
Custom String : Masking method that exposes the first and last letters and adds a custom padding string in the middle. prefix,[padding],suffix Box 2: xxx-xxx Box 3: 5 Reference:
https://docs.microsoft.com/en-us/sql/relational-databases/security/dynamic-data-masking
NEW QUESTION 73
You have an Azure SQL database named sqldb1.
You need to minimize the possibility of Query Store transitioning to a read-only state.
What should you do?
- A. Decrease by half the value of Data Flush Interval
- B. Double the value of Data Flush interval
- C. Decrease by half the value of Statistics Collection interval
- D. Double the value of Statistics Collection Interval
Answer: A
Explanation:
The Max Size (MB) limit isn't strictly enforced. Storage size is checked only when Query Store writes data to disk. This interval is set by the Data Flush Interval (Minutes) option. If Query Store has breached the maximum size limit between storage size checks, it transitions to read-only mode.
Incorrect Answers:
C: Statistics Collection Interval: Defines the level of granularity for the collected runtime statistic, expressed in minutes. The default is 60 minutes. Consider using a lower value if you require finer granularity or less time to detect and mitigate issues. Keep in mind that the value directly affects the size of Query Store data.
Reference:
https://docs.microsoft.com/en-us/sql/relational-databases/performance/best-practice-with-the-query-store
NEW QUESTION 74
You have an Azure SQL database named DB1.
You need to ensure that DB1 will support automatic failover without data loss if a datacenter fails. The solution
must minimize costs.
Which deployment option and pricing tier should you configure?
- A. Azure SQL Database Standard
- B. Azure SQL Database managed instance Business Critical
- C. Azure SQL Database serverless
- D. Azure SQL Database Premium
Answer: D
Explanation:
Section: [none]
Explanation:
By default, the cluster of nodes for the premium availability model is created in the same datacenter. With the
introduction of Azure Availability Zones, SQL Database can place different replicas of the Business Critical
database to different availability zones in the same region. To eliminate a single point of failure, the control ring
is also duplicated across multiple zones as three gateway rings (GW). The routing to a specific gateway ring is
controlled by Azure Traffic Manager (ATM). Because the zone redundant configuration in the Premium or
Business Critical service tiers does not create additional database redundancy, you can enable it at no extra
cost. By selecting a zone redundant configuration, you can make your Premium or Business Critical databases
resilient to a much larger set of failures, including catastrophic datacenter outages, without any changes to the
application logic. You can also convert any existing Premium or Business Critical databases or pools to the
zone redundant configuration.
Incorrect Answers:
C. This feature is not available in SQL Managed Instance.
Reference:
https://docs.microsoft.com/en-us/azure/azure-sql/database/high-availability-sla
NEW QUESTION 75
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. an IDENTITY column
- B. a sequence object
- C. a GUID column
Answer: A
Explanation:
Section: [none]
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-tables- overview
NEW QUESTION 76
You have an Azure SQL managed instance that hosts multiple databases.
You need to configure alerts for each database based on the diagnostics telemetry of the database.
What should you use?
- A. SQL Health Check alerts based on metrics
- B. Azure SQL Analytics alerts based on diagnostics logs
- C. Azure SQL Analytics alerts based on metrics
- D. SQL Health Check alerts based on diagnostics logs
Answer: B
Explanation:
Reference:
https://docs.microsoft.com/en-us/azure/azure-sql/database/metrics-diagnostic-telemetry-logging-streaming-export-configure?tabs=azure-portal#configure-the-streaming-export-of-diagnostic-telemetry
NEW QUESTION 77
You have an Azure SQL database named DB1 that contains two tables named Table1 and Table2. Both tables contain a column named a Column1. Column1 is used for joins by an application named App1.
You need to protect the contents of Column1 at rest, in transit, and in use.
How should you protect the contents of Column1? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
Explanation:
Box 1: Column encryption Key
Always Encrypted uses two types of keys: column encryption keys and column master keys. A column encryption key is used to encrypt data in an encrypted column. A column master key is a key-protecting key that encrypts one or more column encryption keys.
Incorrect Answers:
TDE encrypts the storage of an entire database by using a symmetric key called the Database Encryption Key (DEK).
Box 2: Deterministic
Always Encrypted is a feature designed to protect sensitive data, such as credit card numbers or national identification numbers (for example, U.S. social security numbers), stored in Azure SQL Database or SQL Server databases. Always Encrypted allows clients to encrypt sensitive data inside client applications and never reveal the encryption keys to the Database Engine (SQL Database or SQL Server).
Always Encrypted supports two types of encryption: randomized encryption and deterministic encryption.
Deterministic encryption always generates the same encrypted value for any given plain text value. Using deterministic encryption allows point lookups, equality joins, grouping and indexing on encrypted columns.
Reference:
https://docs.microsoft.com/en-us/sql/relational-databases/security/encryption/always-encrypted-database-engine
NEW QUESTION 78
You need to recommend a solution to ensure that the customers can create the database objects. The solution must meet the business goals.
What should you include in the recommendation?
- A. For each customer, grant the customer ddl_admin to the existing schema.
- B. For each customer, create an additional schema and grant the customer db_writerto the new schema.
- C. For each customer, grant the customer db_writerto the existing schema.
- D. For each customer, create an additional schema and grant the customer ddl_admin to the new schema.
Answer: C
Explanation:
Topic 1, Litware
Existing Environment
Network Environment
The manufacturing and research datacenters connect to the primary datacenter by using a VPN.
The primary datacenter has an ExpressRoute connection that uses both Microsoft peering and private peering. The private peering connects to an Azure virtual network named HubVNet.
Identity Environment
Litware has a hybrid Azure Active Directory (Azure AD) deployment that uses a domain named litwareinc.com. All Azure subscriptions are associated to the litwareinc.com Azure AD tenant.
Database Environment
The sales department has the following database workload:
An on-premises named SERVER1 hosts an instance of Microsoft SQL Server 2012 and two 1-TB databases.
A logical server named SalesSrv01A contains a geo-replicated Azure SQL database named SalesSQLDb1. SalesSQLDb1 is in an elastic pool named SalesSQLDb1Pool. SalesSQLDb1 uses database firewall rules and contained database users.
An application named SalesSQLDb1App1 uses SalesSQLDb1.
The manufacturing office contains two on-premises SQL Server 2016 servers named SERVER2 and SERVER3. The servers are nodes in the same Always On availability group. The availability group contains a database named ManufacturingSQLDb1 Database administrators have two Azure virtual machines in HubVnet named VM1 and VM2 that run Windows Server 2019 and are used to manage all the Azure databases.
Licensing Agreement
Litware is a Microsoft Volume Licensing customer that has License Mobility through Software Assurance.
Current Problems
SalesSQLDb1 experiences performance issues that are likely due to out-of-date statistics and frequent blocking queries.
Requirements
Planned Changes
Litware plans to implement the following changes:
Implement 30 new databases in Azure, which will be used by time-sensitive manufacturing apps that have varying usage patterns. Each database will be approximately 20 GB.
Create a new Azure SQL database named ResearchDB1 on a logical server named ResearchSrv01. ResearchDB1 will contain Personally Identifiable Information (PII) data.
Develop an app named ResearchApp1 that will be used by the research department to populate and access ResearchDB1.
Migrate ManufacturingSQLDb1 to the Azure virtual machine platform.
Migrate the SERVER1 databases to the Azure SQL Database platform.
Technical Requirements
Litware identifies the following technical requirements:
Maintenance tasks must be automated.
The 30 new databases must scale automatically.
The use of an on-premises infrastructure must be minimized.
Azure Hybrid Use Benefits must be leveraged for Azure SQL Database deployments.
All SQL Server and Azure SQL Database metrics related to CPU and storage usage and limits must be analyzed by using Azure built-in functionality.
Security and Compliance Requirements
Litware identifies the following security and compliance requirements:
Store encryption keys in Azure Key Vault.
Retain backups of the PII data for two months.
Encrypt the PII data at rest, in transit, and in use.
Use the principle of least privilege whenever possible.
Authenticate database users by using Active Directory credentials.
Protect Azure SQL Database instances by using database-level firewall rules.
Ensure that all databases hosted in Azure are accessible from VM1 and VM2 without relying on public endpoints.
Business Requirements
Litware identifies the following business requirements:
Meet an SLA of 99.99% availability for all Azure deployments.
Minimize downtime during the migration of the SERVER1 databases.
Use the Azure Hybrid Use Benefits when migrating workloads to Azure.
Once all requirements are met, minimize costs whenever possible.
NEW QUESTION 79
You have an Azure SQL database named DB1.
You need to ensure that DB1 will support automatic failover without data loss if a datacenter fails. The solution must minimize costs.
Which deployment option and pricing tier should you configure?
- A. This feature is not available in SQL Managed Instance.
- B. Azure SQL Database Standard
- C. Azure SQL Database managed instance Business Critical
- D. Azure SQL Database serverless
- E. Azure SQL Database Premium
Answer: E
Explanation:
By default, the cluster of nodes for the premium availability model is created in the same datacenter. With the introduction of Azure Availability Zones, SQL Database can place different replicas of the Business Critical database to different availability zones in the same region. To eliminate a single point of failure, the control ring is also duplicated across multiple zones as three gateway rings (GW). The routing to a specific gateway ring is controlled by Azure Traffic Manager (ATM). Because the zone redundant configuration in the Premium or Business Critical service tiers does not create additional database redundancy, you can enable it at no extra cost. By selecting a zone redundant configuration, you can make your Premium or Business Critical databases resilient to a much larger set of failures, including catastrophic datacenter outages, without any changes to the application logic. You can also convert any existing Premium or Business Critical databases or pools to the zone redundant configuration.
Reference:
https://docs.microsoft.com/en-us/azure/azure-sql/database/high-availability-sla
Topic 1, Contoso Ltd
To start the case study
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.
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
Existing Environment
Contoso, Ltd. is a financial data company that has 100 employees. The company delivers financial data to customers.
Active Directory
Contoso has a hybrid Azure Active Directory (Azure AD) deployment that syncs to on-premises Active Directory.
Database Environment
Contoso has SQL Server 2017 on Azure virtual machines shown in the following table.
SQL1 and SQL2 are in an Always On availability group and are actively queried. SQL3 runs jobs, provides historical data, and handles the delivery of data to customers.
The on-premises datacenter contains a PostgreSQL server that has a 50-TB database.
Current Business Model
Contoso uses Microsoft SQL Server Integration Services (SSIS) to create flat files for customers. The customers receive the files by using FTP.
Requirements
Planned Changes
Contoso plans to move to a model in which they deliver data to customer databases that run as platform as a service (PaaS) offerings. When a customer establishes a service agreement with Contoso, a separate resource group that contains an Azure SQL database will be provisioned for the customer. The database will have a complete copy of the financial data. The data to which each customer will have access will depend on the service agreement tier. The customers can change tiers by changing their service agreement.
The estimated size of each PaaS database is 1 TB.
Contoso plans to implement the following changes:
Business Goals
Contoso identifies the following business requirements:
Technical Requirements
Contoso identifies the following technical requirements:
Monitoring Requirements
Contoso identifies the following monitoring requirements:
PaaS Prototype
During prototyping of the PaaS solution in Azure, you record the compute utilization of a customer's Azure SQL database as shown in the following exhibit.
Role Assignments
For each customer's Azure SQL Database server, you plan to assign the roles shown in the following exhibit.
NEW QUESTION 80
Based on the PaaS prototype, which Azure SQL Database compute tier should you use?
- A. Hyperscale
- B. Serverless
- C. Business Critical 4-vCore
- D. General Purpose v-vCore
Answer: C
Explanation:
There are CPU and Data I/O spikes for the PaaS prototype. Business Critical 4-vCore is needed.
Reference:
https://docs.microsoft.com/en-us/azure/azure-sql/database/reserved-capacity-overview
Topic 1, Contoso Ltd
Existing Environment
Contoso, Ltd. is a financial data company that has 100 employees. The company delivers financial data to customers.
Active Directory
Contoso has a hybrid Azure Active Directory (Azure AD) deployment that syncs to on-premises Active Directory.
Database Environment
Contoso has SQL Server 2017 on Azure virtual machines shown in the following table.
SQL1 and SQL2 are in an Always On availability group and are actively queried. SQL3 runs jobs, provides historical data, and handles the delivery of data to customers.
The on-premises datacenter contains a PostgreSQL server that has a 50-TB database.
Current Business Model
Contoso uses Microsoft SQL Server Integration Services (SSIS) to create flat files for customers. The customers receive the files by using FTP.
Requirements
Planned Changes
Contoso plans to move to a model in which they deliver data to customer databases that run as platform as a service (PaaS) offerings. When a customer establishes a service agreement with Contoso, a separate resource group that contains an Azure SQL database will be provisioned for the customer. The database will have a complete copy of the financial data. The data to which each customer will have access will depend on the service agreement tier. The customers can change tiers by changing their service agreement.
The estimated size of each PaaS database is 1 TB.
Contoso plans to implement the following changes:
Business Goals
Contoso identifies the following business requirements:
Technical Requirements
Contoso identifies the following technical requirements:
Monitoring Requirements
Contoso identifies the following monitoring requirements:
PaaS Prototype
During prototyping of the PaaS solution in Azure, you record the compute utilization of a customer's Azure SQL database as shown in the following exhibit.
Role Assignments
For each customer's Azure SQL Database server, you plan to assign the roles shown in the following exhibit.
NEW QUESTION 81
You receive numerous alerts from Azure Monitor for an Azure SQL database.
You need to reduce the number of alerts. You must only receive alerts if there is a significant change in usage
patterns for an extended period.
Which two actions should you perform? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.
- A. Set the Alert logic threshold to Static
- B. Set Threshold Sensitivity to High
- C. Set the Alert logic threshold to Dynamic
- D. Set Threshold Sensitivity to Low
- E. Set Force Plan to On
Answer: C,D
Explanation:
Section: [none]
Explanation:
B: Dynamic Thresholds continuously learns the data of the metric series and tries to model it using a set of
algorithms and methods. It detects patterns in the data such as seasonality (Hourly / Daily / Weekly), and is
able to handle noisy metrics (such as machine CPU or memory) as well as metrics with low dispersion (such as
availability and error rate).
D: Alert threshold sensitivity is a high-level concept that controls the amount of deviation from metric behavior
required to trigger an alert.
Low - The thresholds will be loose with more distance from metric series pattern. An alert rule will only trigger
on large deviations, resulting in fewer alerts.
Incorrect Answers:
A: High - The thresholds will be tight and close to the metric series pattern. An alert rule will be triggered on the
smallest deviation, resulting in more alerts.
Reference:
https://docs.microsoft.com/en-us/azure/azure-monitor/platform/alerts-dynamic-thresholds
NEW QUESTION 82
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 the Azure portal, you delete Database1 from Server2, and then you create a new database on
Server2 by using the backup of Database1 from Server1.
Does this meet the goal?
- A. No
- B. Yes
Answer: A
Explanation:
Section: [none]
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 83
You have an Azure SQL database.
You discover that the plan cache is full of compiled plans that were used only once.
You run the select * from sys.database_scoped_configurationsTransact-SQL command and receive the results shown in the following table.
You need relieve the memory pressure.
What should you configure?
- A. QUERY_OPTIMIZER_HOTFIXES
- B. OPTIMIZE_FOR_AD_HOC_WORKLOADS
- C. ACCELERATED_PLAN_FORCING
- D. LEGACY_CARDINALITY_ESTIMATION
Answer: B
Explanation:
OPTIMIZE_FOR_AD_HOC_WORKLOADS = { ON | OFF }
Enables or disables a compiled plan stub to be stored in cache when a batch is compiled for the first time. The default is OFF. Once the database scoped configuration OPTIMIZE_FOR_AD_HOC_WORKLOADS is enabled for a database, a compiled plan stub will be stored in cache when a batch is compiled for the first time.
Plan stubs have a smaller memory footprint compared to the size of the full compiled plan.
Incorrect Answers:
A: LEGACY_CARDINALITY_ESTIMATION = { ON | OFF | PRIMARY }
Enables you to set the query optimizer cardinality estimation model to the SQL Server 2012 and earlier version independent of the compatibility level of the database. The default is OFF, which sets the query optimizer cardinality estimation model based on the compatibility level of the database.
B: QUERY_OPTIMIZER_HOTFIXES = { ON | OFF | PRIMARY }
Enables or disables query optimization hotfixes regardless of the compatibility level of the database. The default is OFF, which disables query optimization hotfixes that were released after the highest available compatibility level was introduced for a specific version (post-RTM).
Reference:
https://docs.microsoft.com/en-us/sql/t-sql/statements/alter-database-scoped-configuration-transact-sql Perform Automation of Tasks Question Set 1
NEW QUESTION 84
You have SQL Server on Azure virtual machines in an availability group.
You have a database named DB1 that is NOT in the availability group.
You create a full database backup of DB1.
You need to add DB1 to the availability group.
Which restore option should you use on the secondary replica?
- A. Restore with Recovery
- B. Restore with Norecovery
- C. Restore with Standby
Answer: B
Explanation:
Section: [none]
Explanation:
Prepare a secondary database for an Always On availability group requires two steps:
1. Restore a recent database backup of the primary database and subsequent log backups onto each server instance that hosts the secondary replica, using RESTORE WITH NORECOVERY
2. Join the restored database to the availability group.
Reference:
https://docs.microsoft.com/en-us/sql/database-engine/availability-groups/windows/manually-prepare-a- secondary-database-for-an-availability-group-sql-server
NEW QUESTION 85
You need to recommend an availability strategy for an Azure SQL database. The strategy must meet the following requirements:
* Support failovers that do not require client applications to change their connection strings.
* Replicate the database to a secondary Azure region.
* Support failover to the secondary region.
What should you include in the recommendation?
- A. Availability Zones
- B. geo-replication
- C. failover groups
- D. transactional replication
Answer: B
Explanation:
Section: [none]
Explanation:
Active geo-replication is an Azure SQL Database feature that allows you to create readable secondary databases of individual databases on a server in the same or different data center (region).
Incorrect Answers:
C: Availability Zones are unique physical locations within a region. Each zone is made up of one or more datacenters equipped with independent power, cooling, and networking.
Reference:
https://docs.microsoft.com/en-us/azure/azure-sql/database/active-geo-replication-overview
NEW QUESTION 86
HOTSPOT
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.
Hot Area:
Answer:
Explanation:
Section: [none]
Explanation:
Box 1: delete a row from Table1
Members of the db_datawriter fixed database role can add, delete, or change data in all user tables.
Box 2: db_datareader
Members of the db_datareader fixed database role can read all data from all user tables.
Reference:
https://docs.microsoft.com/en-us/sql/relational-databases/security/authentication-access/database-level-roles
NEW QUESTION 87
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