최신IBM Big Data Engineer - C2090-101무료샘플문제

A. You can improve the performance by decreasing the number of map tasks that are assigned to the load and adjusting the heap size

B. You can improve the performance by increasing the number of map tasks assigned to the load

C. When loading large files the number of files that you load does not impact the performance of the LOAD HADOOP statement

D. It is advantageous to run the LOAD HADOOP statement directly pointing to large files located in the host file system as opposed to copying the files to the DFS prior to load

A. Sqoop can only append new rows to a database table when exporting back to a database

B. Sqoop can be used to retrieve rows newer than some previously imported set of rows

C. Data imported using Sqoop is always written to a single Hive partition

D. HBase is not supported as an import target

A. Flume

B. Distributed Copy

C. Sqoop

D. NZ Load

A. Image Redaction

B. Text Redaction

C. Redact by Information Type

D. Region Redaction

A. To stream data from Hadoop

B. To import data from a relational database or data warehouse into HDFS

C. To capture log data as it is written to log files and move them into HDFS

D. To move static files from the local file system into HDFS

A. One for each Reducer

B. One for each Mapper

C. One per cluster

D. One per data node

A. Sqoop bypasses MapReduce for enhanced performance

B. When using a password file, the file containing the password must reside in HDFS

C. Multiple options files can be specified when invoking Sqoop from the command line

D. All columns in a table must be imported

E. Each row from a source table is represented as a separate record in HDFS