⟩ Explain Which of the following is a black box design technique? a. statement testing b. equivalence partitioning c. error- guessing d. usability testing
b. equivalence partitioning
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Suppose A team of programmers is reviewing a proposed API for a new utility class. After some discussion, they realize that they can reduce the number of methods in the API without losing any functionality. If they implement the new design, which two OO principles will they be promoting? A. Looser coupling B. Tighter coupling C. Lower cohesion D. Higher cohesion E. Weaker encapsulation F. Stronger encapsulation
Explain Given
11. abstract class Vehicle { public int speed() { return 0; }
12. class Car extends Vehicle { public int speed() { return 60; }
13. class RaceCar extends Car { public int speed() { return 150; } ...
21. RaceCar racer = new RaceCar();
22. Car car = new RaceCar();
23. Vehicle vehicle = new RaceCar();
24. System.out.println(racer.speed() + ", " + car.speed()
25. + ", " + vehicle.speed());
What is the result?
A. 0, 0, 0
B. 150, 60, 0
C. Compilation fails.
D. 150, 150, 150
E. An exception is thrown at runtime.Explain Given
1. public class Blip {
2. protected int blipvert(int x) { return 0; }
3. }
4. class Vert extends Blip {
5. // insert code here
6. }
Which five methods, inserted independently at line 5, will compile? (Choose five.)
A. public int blipvert(int x) { return 0; }
B. private int blipvert(int x) { return 0; }
C. private int blipvert(long x) { return 0; }
D. protected long blipvert(int x) { return 0; }
E. protected int blipvert(long x) { return 0; }
F. protected long blipvert(long x) { return 0; }
G. protected long blipvert(int x, int y) { return 0; }If sp_sysmon output consistently shows a high number of VoluntaryYields, which configuration parameter could be modified to improve performance?A. user log cache sizeB. time sliceC. identity grab sizeD. stack sizeE. cpu accounting flush interval
Explain What is the maximum number of tables allowed in a join query?A. 50 User tables and 14 work tablesB. 32 User tables and 14 work tablesC. 30 User tables and 12 work tablesD. 16 User tables and 12 work tables
How to reclaim space from a fragmented allpages heap table?A. run reorg commandB. dump and load the databaseC. create and drop a clustered indexD. truncate the least used pages
Explain Which of the following cache or IO tuning methods can reduce the spinlockcontention on a single "hot" table that is already bound to a named cache?A. Create 16K buffer pool in the named cacheB. Change the cache replacement strategy of the named cache to relaxed LRUC. Partition the named cacheD. Increase the named cache size
Explain Which of the following operations require "quiesce database"?A. altering the database to a new sizeB. performing non-Sybase unmirroring and backup operations.C. truncating the transaction logD. dumping the database using Sybase Backup Server.
Explain The reorg command may be used to (Choose 2)A. Compact a table that uses datarows locking.B. Reclaim unused space in a table that uses allpages locking.C. Reclaim unused space in an index that uses datapages locking.D. Rebuild a table that uses allpages locking.
Explain Which of the following create table can prevent or minimize rowforwarding in DOL tables?A. fillfactorB. max_rows_per_pageC. exp_row_sizeD. reservepagegap
