Oracle 1z0-449 問題集

質問 1：
Your customer has an older starter rack Big Data Appliance (BDA) that was purchased in
2013. The customer would like to know what the options are for growing the storage footprint of its server.
Which two options are valid for expanding the customer's BDA footprint? (Choose two.)
A. Racks manufactured before 2014 are no longer eligible for expansion.
B. Elastically expand the footprint by adding additional Big Data Oracle Database Servers.
C. Elastically expand the footprint by adding additional high capacity nodes.
D. Upgrade to a full 18-node Big Data Appliance.
E. Elastically expand the footprint by adding additional Big Data Storage Servers.
正解：A,D

質問 2：
Your customer collects diagnostic data from its storage systems that are deployed at customer sites. The customer needs to capture and process this data by country in batches.
Why should the customer choose Hadoop to process this data?
A. Hadoop processes data serially.
B. Hadoop supports centralized computing of large data sets on large clusters.
C. Hadoop is a batch data processing architecture.
D. Node failures can be dealt with by configuring failover with clusterware.
E. Hadoop processes data on large clusters (10-50 max) on commodity hardware.
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 3：
You recently set up a customer's Big Data Appliance. At the time, all users wanted access to all the Hadoop data. Now, the customer wants more control over the data that is stored in Hadoop.
How should you accommodate this request?
A. Configure Audit Vault and Database Firewall protection policies for the Hadoop data.
B. Update the MySQL metadata for Hadoop to define access control lists.
C. Configure Apache Sentry policies to protect the Hadoop data.
D. Configure an /etc/sudoers file to restrict the Hadoop data.
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 4：
Your customer wants to implement the Oracle Table Access for a Hadoop Connector
(OTA4H) to connect the Hadooop cluster to the Oracle database. The customer's Oracle
Database is a Real Application Clusters database.
How should you configure the database listener?
A. The database listener is configured to route the Hadoop connection requests to the first node the RAC cluster because clustered environments are not inherently supported.
B. The database listener is configured to route requests to the designated "hadoop" node in the listener's service definition.
C. Connecting to a RAC database is not supported.
D. The database listener is configured to route the Hadoop connection requests to the available nodes randomly, provided that the RAC-aware service name is specified in the
JDBC URL.
正解：D
解説: (Topexam メンバーにのみ表示されます)

質問 5：
How should you control the Sqoop parallel imports if the data does not have a primary key?
A. by indicating the split size by using the --direct-split-size option
B. by choosing a different column that contains unique data with the --split-by argument
C. by specifying no primary key with the --no-primary argument
D. by specifying the number of maps by using the -m option
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 6：
Your customer completed all the Kerberos installation prerequisites when the Big Data
Appliance was set up. However, when the customer tries to use Kerberos authentication, it gets an error.
Which command did the customer fail to run?
A. bdacli enable kerberos
B. emcli enable kerberos
C. bdasetup kerberos
D. install.sh -option kerberos
正解：A
解説: (Topexam メンバーにのみ表示されます)

質問 7：

What are three correct results of executing the preceding query? (Choose three.)
A. Errors in the data for CUST_NUM or ORDER_NUM set the value to INVALID_NUM.
B. Values longer than 100 characters for any column are truncated.
C. Values longer than 100 characters for the DESCRIPTION column are truncated.
D. Errors in the data for CUST_NUM or ORDER_NUM set the value to 0000000000.
E. ITEM_CNT in the HDFS file matches ORDER_LINE_ITEM_COUNT in the external table.
F. ORDER_LINE_ITEM_COUNT in the HDFS file matches ITEM_CNT in the external table.
正解：A,C,E
解説: (Topexam メンバーにのみ表示されます)