Data is written to the HLog in which of the following orders?

A. In order of writes

B. In order of writes, separated by region

C. Ascending first by region and second by row key

D. Descending first by region and second by row key

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

You have two tables in existing RDBMS. One contains information about the products you sell (name, size, color, etc.) The other contains images of the products in JPEG format. These tables are frequently joined in queries to your database.

You would like to move this data into HBase.

How would you design the schema?

A. Create two tables each with multiple column families

B. Create two tables each with a single column family

C. Createasingle table with two column families

D. Create a single table with one column family

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);

You have a key-value pair size of l00 bytes. You increase your HFile block size from its default 64k. What results from this change?

A. scan throughput increases and random-access latency decreases

B. scan throughput decreases and random-access latencyincreases

C. scan throughput decreases and random-access latencydecreases

D. scan throughput increases and random-access latency increases