Printable PDFIBM C2090-101 dumps - 100% Pass Guarantee!
Vendor: IBM
Certifications: IBM Big Data
Exam Name: IBM Big Data Engineer
Exam Code: C2090-101
Total Questions: 106 Q&As ( View Details)
Last Updated: Apr 17, 2024
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C2090-101 Q&A's Detail
| Exam Code: | C2090-101 |
| Total Questions: | 106 |
| Single & Multiple Choice | 106 |
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C2090-101 Online Practice Questions and Answers
Which statement is TRUE concerning optimizing the load performance?
A. You can improve the performance by increasing the number of map tasks assigned to the load
B. When loading large files the number of files that you load does not impact the performance of the LOAD HADOOP statement
C. You can improve the performance by decreasing the number of map tasks that are assigned to the load and adjusting the heap size
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
Which ONE of the following statements regarding Sqoop is TRUE?
A. HBase is not supported as an import target
B. Data imported using Sqoop is always written to a single Hive partition
C. Sqoop can be used to retrieve rows newer than some previously imported set of rows
D. Sqoop can only append new rows to a database table when exporting back to a database
Which of the following Pig Latin expressions is used to sum a set of numbers in a bag?
A. X = FOR EACH C -> (group,SUM(A.a1))
B. X = FOR EACH C GEN [group, SUM (A.a1)];
C. X = FOREACH C GENERATE group, SUM (A.a1);
D. X = FOREACH C GENERATE FLATTEN SUM (A.a1);
What keyword is used when loading in Hive from single file on the local file system?
(Hint: If we leave off this keyword with the LOAD command, Hive assumes the location we are referring to is on HDFS)
A. LOCAL
B. INSERT
C. DIRECTORY
D. OVERWRITE
Which of the following is TRUE regarding a schema In Jaql?
A. It specifies a particular type for each field
B. It is used only when Jaql includes SQL statements
C. It must be provided when the data format is not otherwise known
D. It can be used both as a data constraint and to optimize processing and storage
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