NIC Scientific Officer (Programmer) Previous paper 2008 - Part 5

21. Java's multi-threading system is built upon __________ Class and ______________ interface.
Thread, Interrupt 
Parallel, Interrupt 
Thread, Runnable 
None of the above 
 

22. The time required by a sector to reach below the read/write head
Seek Time  Rotational Delay or Latency  Transfer time  None 
 

23. What will be the output of the following code snippet?

try {
int x = 0;
int y = 50/x;
System.out.println("Division by Zero is an error");
}
catch(ArithmeticException e) {
System.out.println("catch block");
}
Division by Zero is an error  catch block  Both errors  None 
 

24. In a select statement ______________ clause restricts the grouped rows that appear in the result.
where  join  having  on 
 

25. The process of mapping/initialising a disk is called ____________
Booting  Formatting  Keymapping  None of the above 
 

Part I       Part II      Part III      Part IV     Part V     Part VI     Part VII