Download Oracle Big Data 2016 Implementation Essentials.Braindumps.1z0-449.2018-11-29.1e.42q.vcex

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Exam Oracle Big Data 2016 Implementation Essentials
Number 1z0-449
File Name Oracle Big Data 2016 Implementation Essentials.Braindumps.1z0-449.2018-11-29.1e.42q.vcex
Size 499 Kb
Posted November 29, 2018
Downloads 2



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Demo Questions

Question 1
The hdfs_stream script is used by the Oracle SQL Connector for HDFS to perform a specific task to access data. 
What is the purpose of this script? 


  • A: It is the preprocessor script for the Impala table.
  • B: It is the preprocessor script for the HDFS external table.
  • C: It is the streaming script that creates a database directory.
  • D: It is the preprocessor script for the Oracle partitioned table.
  • E: It defines the jar file that points to the directory where Hive is installed.



Question 2
How should you encrypt the Hadoop data that sits on disk?

  • A: Enable Transparent Data Encryption by using the Mammoth utility.
  • B: Enable HDFS Transparent Encryption by using bdacli on a Kerberos-secured cluster.
  • C: Enable HDFS Transparent Encryption on a non-Kerberos secured cluster.
  • D: Enable Audit Vault and Database Firewall for Hadoop by using the Mammoth utility.



Question 3
What two things does the Big Data SQL push down to the storage cell on the Big Data Appliance? (Choose two.)

  • A: Transparent Data Encrypted data
  • B: the column selection of data from individual Hadoop nodes
  • C: WHERE clause evaluations
  • D: PL/SQL evaluation
  • E: Business Intelligence queries from connected Exalytics servers



Question 4
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: Elastically expand the footprint by adding additional high capacity nodes.
  • B: Elastically expand the footprint by adding additional Big Data Oracle Database Servers.
  • C: Elastically expand the footprint by adding additional Big Data Storage Servers. 
  • D: Racks manufactured before 2014 are no longer eligible for expansion.
  • E: Upgrade to a full 18-node Big Data Appliance.



Question 5
  

What are three correct results of executing the preceding query? (Choose three.)

  • A: Values longer than 100 characters for the DESCRIPTION column are truncated.
  • B: ORDER_LINE_ITEM_COUNT in the HDFS file matches ITEM_CNT in the external table. 
  • C: ITEM_CNT in the HDFS file matches ORDER_LINE_ITEM_COUNT in the external table.
  • D: Errors in the data for CUST_NUM or ORDER_NUM set the value to INVALID_NUM.
  • E: Errors in the data for CUST_NUM or ORDER_NUM set the value to 0000000000.
  • F: Values longer than 100 characters for any column are truncated.



Question 6
What does the following line do in Apache Pig? 
products = LOAD ‘/user/oracle/products’ AS (prod_id, item);

  • A: The products table is loaded by using data pump with prod_id and item.
  • B: The LOAD table is populated with prod_id and item.
  • C: The contents of /user/oracle/products are loaded as tuples and aliased to products.
  • D: The contents of /user/oracle/products are dumped to the screen.



Question 7
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: xyz
  • B: 123
  • C: 456
  • D: xxx
  • E: x/y



Question 8
The NoSQL KVStore experiences a node failure. One of the replicas is promoted to primary. 
How will the NoSQL client that accesses the store know that there has been a change in the architecture?

  • A: The KVLite utility updates the NoSQL client with the status of the master and replica.
  • B: KVStoreConfig sends the status of the master and replica to the NoSQL client.
  • C: The NoSQL admin agent updates the NoSQL client with the status of the master and replica.
  • D: The Shard State Table (SST) contains information about each shard and the master and replica status for the shard.



Question 9
Your customer is experiencing significant degradation in the performance of Hive queries. The customer wants to continue using SQL as the main query language 
for the HDFS store. 
Which option can the customer use to improve performance? 


  • A: native MapReduce Java programs
  • B: Impala
  • C: HiveFastQL
  • D: Apache Grunt



Question 10
Your customer’s Oracle NoSQL store has a replication factor of 3. One of the customer’s replica nodes goes down. 
What will be the long-term performance impact on the customer’s NoSQL database if the node is replaced?

  • A: There will be no performance impact. 
  • B: The database read performance will be impacted.
  • C: The database read and write performance will be impacted.
  • D: The database will be unavailable for reading or writing.
  • E: The database write performance will be impacted.









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