Oracle 1z1-449 : Oracle Big Data 2017 Implementation Essentials

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Oracle 1z1-449 시험 개요:

Oracle 1z1-449 시험 요강 주제:

Oracle 1z1-449 응시 전 알아두어야 할 질문들

최신 Oracle Big Data Appliance 1z1-449 무료샘플문제

문제 #1

How does increasing the number of storage nodes and shards impact the efficiency of
Oracle NoSQL Database?

A. Having more shards reduces the write throughput because of increased node forwarding.
B. The number of shards or storage nodes does not impact performance.
C. Having more shards increases the write throughput because more master nodes are available for writes.
D. Having more shards results in reduced read throughput because of increased node forwarding.

문제 #2

What is the output of the following six commands when they are executed by using the
Oracle XML Extensions for Hive in the Oracle XQuery for Hadoop Connector?
1 . $ echo "xxx" > src.txt
2 . $ hive --auxpath $OXH_HOME/hive/lib -i $OXH_HOME/hive/init.sql
3 . hive> CREATE TABLE src (dummy STRING);
4 . hive> LOAD DATA LOCAL INPATH 'src.txt' OVERWRITE INTO TABLE src;
5 . hive> SELECT * FROM src;
OK
xxx
6. hive> SELECT xml_query ("x/y", "<x><y>123</y><z>456</z></x>") FROM src;

A. x/y
B. 123
C. 456
D. xyz
E. xxx

문제 #3

What kind of workload is MapReduce designed to handle?

A. computational
B. commodity
C. interactive
D. real time
E. batch processing

문제 #4

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 is a batch data processing architecture.
B. Hadoop supports centralized computing of large data sets on large clusters.
C. Hadoop processes data serially.
D. Hadoop processes data on large clusters (10-50 max) on commodity hardware.
E. Node failures can be dealt with by configuring failover with clusterware.

문제 #5

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 a one-way cross-realm trust from the Kerberos realm to the Active Directory realm.
B. Set up Kerberos' Key Distribution Center to be the Active Directory keystore.
C. Set up a one-way cross-realm trust from the Active Directory realm to the Kerberos realm.
D. Configure Active Directory to use Kerberos' Key Distribution Center.

질문과 대답: