IBM C2090-730 Actual Tests : DB2 9 Family Fundamentals

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IBM C2090-730 Exam Syllabus Topics:

IBM DB2 9 Family Fundamentals Sample Questions:

1. Which of the following is NOT a characteristic of a unique index?

A) A unique index can only be created for a non-nullable column
B) Each column in a base table can only participate in one uniqueindex, regardless of how the columns are grouped (the same column cannot be used in multiple unique indexes)
C) In order for an index to be used to support a unique constraint, it must have been defined with the UNIQUE attribute
D) A unique index cannot be created for a populated table if the key column specified contains more than one NULL value

2. Which of the following is the lowest cost DB2 product that can be legally installed on an AIX server?

A) DB2 Express Edition
B) DB2 Workgroup Server Edition
C) DB2 Personal Edition
D) DB2Enterprise Server Edition

3. Two applications have created a deadlock cycle in the locking subsystem. If lock timeout is set to 30 and both applications were started at the same time, what action will the deadlock detector take when it "wakes up" and discovers the deadlock?

A) It will wait 30 seconds, then rollback the current transactions of both applications if the deadlock has not been resolved
B) It will randomly pick an application and rollback its current transaction
C) Itwill rollback the current transactions of both applications
D) It will go back to sleep for 30 seconds, then if the deadlock still exists, it will randomly pick an application and rollback its current transaction

4. Application A holds an Update lock on a single row and application B is trying to read that row. If both applications are using isolation level UR, which of the following will occur?

A) Application A will be terminated so that application B can read the row.
B) Application B will wait until applicationA releases the Update lock.
C) Application B will read the row.
D) Applications A and B will cause a deadlock situation.

5. Given the following table definitions:
EMPLOYEE ID NAME DEPTID
01 Smith 10 02 Bossy 20 03 Peterson 20 04 Goss 30 05 Pape 40 06 Avery 50 07 O'Neal 60 08 Carter 50 DEPARTMENT ID DEPTNAME
05 Hardware 10 Kitchen 20 Shoes 30 Toys 40 Electronics 50 Automotive and the following query:
SELECT e.id, d.deptname FROM employee e, department d WHERE e.deptid = d.id AND e.id > 4
Which of the following queries will produce the same result set as the query above?

A) SELECT e.id,d.deptname FROM employee e, department d WHERE e.id > 4
B) SELECT e.id,d.deptname FROM employee e INNER JOIN department d ON e.deptid = d.id WHERE e.id > 4
C) SELECT e.id,d.deptname FROM employee e LEFT OUTER JOIN department d ON e.deptid = d.id WHERE e.id > 4 UNION ALL SELECT e.id, d.deptname FROM employee e RIGHT OUTER JOIN department d ON e.deptid = d.id WHERE e.id > 4
D) SELECT e.id,d.deptname FROM employee e FULL OUTER JOIN department d ON e.id = d.id WHERE e.id > 4

Solutions: