Cloudera CCB-400 Exam Questions & Answers

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Questions 1

You have a table with the following rowkeys:

r1, r2, r3, r10, r15, r20, r25, r30, r35

In which order will these rows be retrieved from a scan?

A. r35,r30,r3,r25,r20,r2,r15,r10,r1

B. r1,r2,r3,r10,r15,r20, r25,r30,r35

C. r1,r10,r15,r2,r20,r25,r3,r30,r35

D. r35,r30,r25,r20,r15,r10,r3,r2,r1

Show Answer

Questions 2

From within an HBase application, you would like to create a new table named weblogs. You have started with the following Java code:

HBaseAdmin admin = new HBaseAdmin (conf);

HTableDescriptor t = new HTableDescriptor("weblogs");

Which of the following method(s) would you use next?

A. admin.createTable(t);admin.enable.Table(t);

B. admin.createTable(t);

C. HTable.createTable(t);HTable.enableTable(t);

D. HTable.createTable(t);

Show Answer

Questions 3

You need to insert a cell with a specific timestamp (version) 13353903160532. Which of the following is true?

A. The timestamp for the entire row must be updatedto13353903160532

B. ThePutclass allows setting a cell specific timestamp

C. ThePutclass allows setting a column family-specific timestamp

D. TheHTableclass allows you to temporarily roll back the newer versions of the cell

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