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Exam : Sybase 510-026
Title : Sybase ASE SQL Developer Professional Exam (Version 15.0)


1. What lock type will prevent a series of shared locks from blocking an exclusive lock?
A. demand
B. intent
C. next-key
D. range-key
E. update
Answer: A

2. In which of the following partition types is data distributed in order of operation?
A. hash
B. range
C. list
D. round robin
Answer: D

3. In which of the following clauses of a SELECT are subqueries permitted? (Choose 3)
A. SELECT
B. WHERE
C. GROUP BY
D. FROM
E. ORDER BY
Answer: ABD

4. Metrics capture gives the administrator the ability to see which query performed (Choose 2)
A. the most physical I/O.
B. the least logical I/O.
C. a table scan.
D. a clustered index scan.
E. large I/O.
Answer: AB

5. The allrows_oltp optimization goal considers
A. bushy trees.
B. hash joins.
C. merge joins.
D. nested loop joins.
E. parallelism.
F. all optimization methods.
Answer: D

6. Which operator returns a single result set that combines the result of two or more queries?
A. IN
B. UNION
C. LIKE
D. AND
Answer: B

7. An operator tree is displayed as a result of which command?
A. set showplan on
B. set option show_lio on
C. set statistics plancost on
D. set option show long
Answer: C

8. Which type of join requires outer and inner tables sorted in join key order?
A. Nested Loop
B. Merge
C. Hash
D. N-ary Nested Loop
Answer: B

9. Which function measures the amount of change in the data distribution since update statistics?
A. data_pages
B. count
C. datachange
D. used_pgs
Answer: C

10. Isolation level 2
A. decreases the duration of shared locks.
B. decreases the duration of exclusive locks.
C. increases the duration of shared locks.
D. only applies to All Pages locking schemes.
Answer: C

11. Global indexes can be clustered on
A. round robin partitioned tables only.
B. round robin or range partitioned tables.
C. round robin, range or hash partitioned tables.
D. list partitioned tables only.
Answer: A

12. Which of the following are TRUE about the cursor fetch statement? (Choose 2)
A. The row number starts at 0.
B. If fetch behavior is not specified, the next row is assumed by default.
C. For a scrollable cursor, @@rowcount cannot exceed the total number of rows in the result set.
D. @@fetch_status=0 implies the last fetch was successful.
Answer: BD

13. Which of the following statistics are NOT captured by QP Metrics?
A. elapsed time
B. logical I/O
C. physical I/O
D. subquery caching
Answer: D

14. Which of the following is TRUE about correlated subqueries?
A. The two statements can be resolved independently of one another.
B. The subqueries can be run in any order.
C. The subqueries can be rewritten as joins.
D. The inner query is dependent on the outer query.
Answer: D