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Question No : 1
A. The table statistics are used to facilitate disk space reclamation of deleted rows.
B. The optimizer uses statistics to determine the optimal execution plan for queries.
C. The Zone Map information cross references the table statistics for each column to avoid scanning.
D. The Field Programmable Gate Array (FPGA) utilizes the statistics to identify which row/columns to filter.
Question No : 2
Given the following query:
SELECT * FROM TableA, TableB WHERE TableA.c_custkey = TableB.o_custkey;
What type of join processing will occur when the query is executed?
A. Collocation hash join processing
B. Distributed hash join processing
C. Broadcast sort merge join processing
D. Replication sort merge join processing
Question No : 3
Question No : 4
Question No : 5
A. When a SAS switch has failed.
B. When the path the path between an S-Blade and its disks has failed.
C. When a disk enclosure's voltage sensor is reading outside the nominal range.
D. When an S-Blade has ownership of more dataslices than is optimal (usually following a disk replacement).
Question No : 6
Question No : 7
A. Install the JDBC driver for UNIX.
B. Install the ODBC driver for UNIX.
C. Install the OLE-DB driver for UNIX.
D. OLE-DB is not supported on UNIX.
Question No : 8
D. The SYSTEM database
Question No : 9
A. Queries are executed in parallel by the host.
B. Queries must be compressed before they can be executed.
C. Queries are compiled into snippets and executed in parallel by the S-Blades.
D. Queries must be uncompressed by the user and executed in parallel by the host.
E. A query is compiled into a snippet which is executed across all available S-Blades.
Question No : 10
When column values are later evaluated within a query statement, which of these is true?
A. 0 is equal to null, the empty string (¡®¡® ) is equal to null.
B. 0 is equal to null, the empty string (¡®¡® ) is not equal to null.
C. 0 is not equal to null, the empty string (¡®¡® ) is equal to null.
D. 0 is not equal to null, the empty string (¡®¡® ) is not equal to null.
Question No : 11
A. Groom will be automatically invoked.
B. Primary key constraints will be checked.
C. Statistics will automatically be generated.
D. Materialized views will be automatically generated.
Question No : 12
A. No data movement is required.
B. A merge join operation will be performed.
C. A cluster based join method is performed.
D. Data is dynamically redistributed or broadcasted.
Question No : 13
Question No : 14
A. Back up pg.log files.
B. Back up TEMP tables.
C. Back up host data (catalog metadata).
D. Back up the data using the specified number of streams.
Question No : 15
A. S-Blade (Snippet-Blade)
B. SFI (Switching Fabric Interface)
C. FPGA (Field Programmable Gate Array)
D. DRBD (Distributed Replicated Block Device)