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programming languages Online Quiz - 50

Description: programming languages Online Quiz - 50
Number of Questions: 20
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Tags: programming languages
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Which of the following statements is true :

  1. inner join and intersect are same

  2. left join and union are same

  3. inner join when used with distinct can simulate intersect

  4. inner join and union are same


Correct Option: C

Create table temp (name varchar2 (20) , empid integer) ; insert into temp ('abc',100) ; savepoint a; insert into temp ('def' , 100); delete from temp; rollback to a; commit;

  1. 0

  2. 2

  3. error

  4. 1


Correct Option: D

The above code compiles in __ language?

  1. JAVA

  2. C#

  3. works in java but not in C#

  4. works in C# but not in JAVA

  5. works in both languages


Correct Option: C

Which is responsible for dot net framework language interoperability

  1. JIT

  2. Language Specific Compiler

  3. MSIL

  4. CTS


Correct Option: C

SEARCH can be applied to a table which does not have an INDEX defined.

  1. True

  2. False


Correct Option: B

close with lock statement closes an opened file and it prevents the file from further being opened by the same program.

  1. True

  2. False


Correct Option: A

which of the following is mandatory for cobol program.

  1. identification division and program id

  2. identification division and data division

  3. identification division and report section

  4. identification division linkage section and program id


Correct Option: A

How many sections are there in data division

  1. 4

  2. 6

  3. 3

  4. 2


Correct Option: B

How do you design a website with multilingual support in ASP.NET?

  1. True

  2. False


Correct Option: A
  1. import java.util.*; 4. class Dog { int size; Dog(int s) { size = s; } } 5. public class FirstGrade { 6. public static void main(String[] args) { 7. TreeSet i = new TreeSet(); 8. TreeSet d = new TreeSet(); 9. 10. d.add(new Dog(1)); d.add(new Dog(2)); d.add(new Dog(1)); 11. i.add(1); i.add(2); i.add(1); 12. System.out.println(d.size() + " " + i.size()); 13. } 14. }
  1. 1 2

  2. 2 2

  3. 2 3

  4. Compilation fails

  5. Exception occurs at runtime


Correct Option: E

public static void before() { Set set = new TreeSet(); set.add("2"); set.add(3); set.add("1"); Iterator it = set.iterator(); while (it.hasNext()) System.out.print(it.next() + " "); }

  1. The before() method will print 1 2

  2. The before() method will print 1 2 3

  3. The before() method will print three numbers, but the order cannot be determined

  4. The before() method will not compile

  5. The before() method will throw an exception at runtime


Correct Option: E

public static void main(String[] args) { // INSERT DECLARATION HERE for (int i = 0; i <= 10; i++) { List row = new ArrayList(); for (int j = 0; j <= 10; j++) row.add(i * j); table.add(row); } for (List row : table) System.out.println(row); } Which statements could be inserted at // INSERT DECLARATION HERE to allow this code to compile and run? (Choose all that apply.)

  1. List> table = new List>();

  2. List> table = new ArrayList>();

  3. List> table = new ArrayList>();

  4. List table = new List();

  5. List table = new ArrayList();

  6. List table = new ArrayList();


Correct Option: B
  1. import java.io.*; 4. class Vehicle { } 5. class Wheels { } 6. class Car extends Vehicle implements Serializable { } 7. class Ford extends Car { } 8. class Dodge extends Car { 9. Wheels w = new Wheels(); 10. } Instances of which class(es) can be serialized? (Choose all that apply.)
  1. Car

  2. Ford

  3. Dodge

  4. Wheels

  5. Vehicle


Correct Option: A,B

import java.util.regex.; class Regex2 { public static void main(String[] args) { Pattern p = Pattern.compile(args[0]); Matcher m = p.matcher(args[1]); boolean b = false; while(b = m.find()) { System.out.print(m.start() + m.group()); } } } And the command line: java Regex2 "\d" ab34ef

  1. 234

  2. 334

  3. 2334

  4. 0123456

  5. 01234456

  6. 12334567


Correct Option: E

Maximum number of datafiles per DB are ?

  1. 128,000

  2. 64,000

  3. 32,000

  4. 16,000


Correct Option: B

The Files tnsnames.ora, listener.ora and sqlnet.ora are available at the location ?

  1. $Oracle_home/network/administrator

  2. $Oracle_home/db/administrator

  3. $Oracle_home/network/admin

  4. $Oracle_home/db/admin


Correct Option: C

The file init.ora is available at the location ?

  1. $Oracle_home/data

  2. $Oracle_home/dbs

  3. $Oracle_home/dba

  4. $Oracle_home/db


Correct Option: B

Min, Default and Max size of DBMS Output Buffer is ?

  1. 1 - 10,000 - 1,000,000

  2. 1 - 10,000 - 100,000

  3. 1 - 20,000 - 100,000

  4. 1 - 20,000 - 1,000,000


Correct Option: D

A Table can have Unlimited Columns.

  1. True

  2. False


Correct Option: B

A Table can have unlimited indexes.

  1. True

  2. False


Correct Option: A
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