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IBM A2090-544 Exam Syllabus Topics:

IBM Assessment: DB2 9.7 Advanced DBA for LUW Sample Questions:

1. Given INTRA_PARALLEL is OFF, average row length is 900 bytes, and temporary table cardinality is 1000, which setting would prevent a SORTHEAP overflow when the temporary table is sorted?

A) SORTHEAP AUTOMATIC, SHEAPTHRES 10000K
B) SORTHEAP AUTOMATIC, SHEAPTHRES 0
C) SORTHEAPTHRES 10000K, SORTHEAP 250K
D) SORTHEAPTHRES 10000K

2. Which registry variable allows you to limit the size of individual containers for automatic storage table spaces?

A) DB2_SET_MAX_CONTAINER_SIZE
B) DB2_LIMIT_AS_CONTAINER_BLOCKS
C) DB2_ALLOCATION_SIZE
D) DB2_TRUNCATE_AS_STORAGE

3. What steps, in the correct order, are performed by the SQL and XQuery compilers to generate executable code for non-federated queries?

A) parse query; check semantics; rewrite query; build access plan
B) check semantics; parse query; rewrite query; build access plan
C) check semantics; parse query; build access plan; pushdown predicates; execute access plan
D) parse query; rewrite query; check semantics; pushdown predicates; execute access plan

4. Your UNIX system administrator has indicated that there appears to be a lot of I/O wait time associated with your database, which is stored in a 7+p RAID array. An investigation reveals the following information: DB2_PARALLEL_IO=*
Tablespace with ID 7 has a single container and is dedicated to the largest table. It has a page size of 16K, an extent size of 32, and a prefetch size of 64.
Which setting would optimize I/O for the largest table?

A) DB2_PARALLEL_IO=7:32
B) DB2_PARALLEL_IO=7:16
C) DB2_PARALLEL_IO=7:64
D) DB2_PARALLEL_IO=7:7

5. A database named MYDB is created in instance DB2INST1, which has been configured to use KRB_SERVER_ENCRYPT authentication. If a client attempting to access database MYDB does not support Kerberos authentication, which authentication method will be used to establish a connection?

A) KRB_SERVER_ENCRYPT
B) SERVER
C) SERVER_ENCRYPT
D) CLIENT

Solutions: