Oracle 1z0-449 問題集

質問 1：
Your customer uses Active Directory to manage user accounts. You are setting up Hadoop
Security for the customer's Big Data Appliance.
How will you integrate Hadoop and Active Directory?
A. Set up Kerberos' Key Distribution Center to be the Active Directory keystore.
B. Configure Active Directory to use Kerberos' Key Distribution Center.
C. Set up a one-way cross-realm trust from the Active Directory realm to the Kerberos realm.
D. Set up a one-way cross-realm trust from the Kerberos realm to the Active Directory realm.
正解：D
解説: (Topexam メンバーにのみ表示されます)

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：
Which user in the following set of ACL entries has read, write and execute permissions? user::rwx group::r-x other::r-x
default:user::rwx
default:user:bruce:rwx #effective:r-x
default:group::r-x
default:group:sales:rwx #effective:r-x
default:mask::r-x
default:other::r-x
A. hdfs
B. user
C. bruce
D. all users
E. sales
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 4：
Your customer has 10 web servers that generate logs at any given time. The customer would like to consolidate and load this data as it is generated into HDFS on the Big Data
Appliance.
Which option should the customer use?
A. Set up a web server agent in Apache Oozie to write the data to HDFS.
B. Set up a zookeeper agent to capture the transactions and write them to HDFS.
C. Set up an hbase agent to capture the transactions and write them to HDFS.
D. Set up a flume agent to capture the transactions and write them to HDFS.
E. Write a hive query to listen for new logs and save them in a Hive table.
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 encrypt the Hadoop data that sits on disk?
A. Enable HDFS Transparent Encryption by using bdacli on a Kerberos-secured cluster.
B. Enable Audit Vault and Database Firewall for Hadoop by using the Mammoth utility.
C. Enable HDFS Transparent Encryption on a non-Kerberos secured cluster.
D. Enable Transparent Data Encryption by using the Mammoth utility.
正解：A
解説: (Topexam メンバーにのみ表示されます)

質問 6：
What are the two advantages of using Hive over MapReduce? (Choose two.)
A. Hive does not require MapReduce to run in order to analyze data.
B. Hive allows for sophisticated analytics on large data sets.
C. Hive is much faster than MapReduce because it accesses data directly.
D. Hive simplifies Hadoop for new users.
E. Hive is a free tool; Hadoop requires a license.
正解：B,D
解説: (Topexam メンバーにのみ表示されます)

質問 7：
Your customer wants you to set up ODI by using the IKM SQL to Hive module and overwrite existing Hive tables with the customer's new clinical data.
What parameter must be set to true?
A. CREATE_HIVE_TABLE
B. SQOOP_ODI_OVERWRITE
C. OVERWRITE_HDFS_TABLE
D. OVERWRITE_HIVE_TABLE
正解：A