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NEW QUESTION: 1
You need to maximize performance of writes to each database without requiring changes to existing database tables.
In the table below, identify the database setting that you must configure for each database.
NOTE: Make only one selection in each column. Each correct selection is worth one point.

Answer:
Explanation:

Explanation

DB1: DELAYED_DURABILITY=FORCED
From scenario: Thousands of records are inserted into DB1 or updated each second. Inserts are made by many different external applications that your company's developers do not control. You observe that transaction log write latency is a bottleneck in performance. Because of the transient nature of all the data in this database, the business can tolerate some data loss in the event of a server shutdown.
With the DELAYED_DURABILITY=FORCED setting, every transaction that commits on the database is delayed durable.
With the DELAYED_DURABILITY= ALLOWED setting, each transaction's durability is determined at the transaction level.
Note: Delayed transaction durability reduces both latency and contention within the system because:
* The transaction commit processing does not wait for log IO to finish and return control to the client.
* Concurrent transactions are less likely to contend for log IO; instead, the log buffer can be flushed to disk in larger chunks, reducing contention, and increasing throughput.
DB2: ALLOW_SNAPSHOT_ISOLATION ON and READ_COMMITTED_SNAPSHOT ON
Snapshot isolation enhances concurrency for OLTP applications.
Snapshot isolation must be enabled by setting the ALLOW_SNAPSHOT_ISOLATION ON database option before it is used in transactions.
The following statements activate snapshot isolation and replace the default READ COMMITTED behavior with SNAPSHOT:
ALTER DATABASE MyDatabase
SET ALLOW_SNAPSHOT_ISOLATION ON
ALTER DATABASE MyDatabase
SET READ_COMMITTED_SNAPSHOT ON
Setting the READ_COMMITTED_SNAPSHOT ON option allows access to versioned rows under the default READ COMMITTED isolation level.
From scenario: The DB2 database was migrated from SQLServer 2012 to SQL Server 2016. Thousands of records are updated or inserted per second. You observe that the WRITELOG wait type is the highest aggregated wait type. Most writes must have no tolerance for data loss in the event of a server shutdown. The business has identified certain write queries where data loss is tolerable in the event of a server shutdown.
References:
https://msdn.microsoft.com/en-us/library/dn449490.aspx
https://msdn.microsoft.com/en-us/library/tcbchxcb(v=vs.110).aspx

NEW QUESTION: 2
You have an Azure Active Directory (Azure AD) tenant named contosocloud.onmicrosoft.com.
Your company has a public DNS zone for contoso.com.
You add contoso.com as a custom domain name to Azure AD.
You need to ensure that Azure can verify the domain name.
Which type of DNS record should you create?
A. SRV
B. MX
C. PTR
D. RRSIG
Answer: B
Explanation:
Explanation/Reference:
Explanation:
To verify your custom domain name (example)
1. Sign in to the Azure portal using a Global administrator account for the directory.
2. Select Azure Active Directory, and then select Custom domain names.
3. On the Fabrikam - Custom domain names page, select the custom domain name, Contoso.
4. On the Contoso page, select Verify to make sure your custom domain is properly registered and is valid for Azure AD. Use either the TXT or the MX record type.

References:
https://docs.microsoft.com/en-us/azure/active-directory/fundamentals/add-custom-domain

NEW QUESTION: 3
Your organization requires strict adherence to a change control process for its Amazon Elastic Compute
Cloud (EC2) and VPC environments. The organization uses AWS CloudFormation as the AWS service to
control and implement changes. Which combination of three services provides an alert for changes made
outside of AWS CloudFormation? (Select three.)
A. AWS Lambda
B. AWS CloudFormation
C. AWS Identify and Access Management
D. AWS CloudWatch metrics
E. AWS Simple Notification Service
F. AWS Config
Answer: A,D,E

NEW QUESTION: 4
You are managing a three-instance policy-managed RAC database PROD. You created a service called GL for the PROD database by using the following command:
[oracIe@gr7597~]$ srvctl add service -d PROD -s GL -g SP1 -c singleton -y manual Examine the following output: [oracIe@gr7597~]$ srvctl config database -d PROD -a Database unique name: PROD Database name: PROD Oracle home: /u01/app/oracle/product/11.2.0/dbhome_1 Oracle user: oracle Spfile: +DATA/PROD/spfileRACDB.ora Domain: Start options: open Stop options: immediate Database role: PRIMARY Management policy: AUTOMATIC Server pools: SP1 Database instances: Disk Groups: DATA, FRA Services: Database is enabled Database is policy managed [oracIe@gr7597~]$ crsctl stat res ora.PROD.db NAME=ora.PROD.db TYPE=cluster_resource TARGET=ONLINE STATE=ONLINE on gr7597 ONLINE on gr7602 ONLINE on gr7633 [oracIe@gr7597~]$ crsctl stat serverpool ora.SP1 NAME=ora.SP1 ACTIVE_SERVERS=gr7597 gr7602 gr7633 [oracle@gr7597-]$ crsctl stat res ora.prod.gl.svc NAME=ora.prod.gl.svc TYFE=ora.service.type TARGET=ONLINE STATE=ONLINE on gr7597
Which three steps are required to enable ODP.NET clients that connect to the GL service to receive FAN High Availability Events?
A. Execute the following statement for the users that will be connecting by way of the .Net
Application, where user_name is the user name:
EXECUTE DBMS_AQADM.GRANT_QUEUE_PRIVILEGE( 'DEQUEUE', '
SYS.SYS$SERVICE_METRICS',
user_name ) ;
B. Enable Transparent Application Failover (TAF), either on the client or for the service.
C. Enable Advanced Queuing notifications by using SRVCTL as shown in the following command:
$ srvctl modify service -d prod -s gl -q TRUE -j LONG
D. Enable Fast Connection Failover for ODP.NET connection pools by subscribing to FAN High
Availability events. Do this by setting the HA events connection string attribute to true at
connection time.
E. Link client applications with the client thread or operating system library.
Answer: A,C,D
Explanation:
Enabling ODP.NET Clients to Receive FAN High Availability Events
Perform the following steps to enable FAN for ODP.NET clients:
Enable Advanced Queuing notifications for a service by using SRVCTL as shown in the following
example:
srvctl modify service -d crm -s odpnet.example.com -q TRUE
Grant permissions on the internal event queue table by executing the following command for the
users that will be connecting by way of the ODP.NET application, where user_name is the
database user name:
EXECUTE
DBMS_AQADM.GRANT_QUEUE_PRIVILEGE('DEQUEUE','SYS.SYS$SERVICE_METRICS',
user_name);
Enable Fast Connection Failover for ODP.NET connection pools by subscribing to FAN high
availability events. To enable FCF, include "HA Events=true" and "pooling=true" (the default value)
in the connection string, as shown in the following example where user_name is the name of the
database user and password is the password for that user:
con.ConnectionString =
"User Id=user_name;Password=password;Data Source=odpnet;" +
"Min Pool Size=10;Connection Lifetime=120;Connection Timeout=60;" +
"HA Events=true;Incr Pool Size=5;Decr Pool Size=2";
Oracle@ Real Application Clusters Administration and Deployment Guide
11g Release 2 (11.2)