Question 1

A Table can have unlimited indexes.

technology programming languages

True
False

Answer

Correct Option: A

Question 2

A Table can have Unlimited Columns.

technology programming languages

True
False

Answer

Correct Option: B

Question 3

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

technology programming languages

1 - 10,000 - 1,000,000
1 - 10,000 - 100,000
1 - 20,000 - 100,000
1 - 20,000 - 1,000,000

Answer

Correct Option: D

Question 4

The file init.ora is available at the location ?

technology programming languages

$Oracle_home/data
$Oracle_home/dbs
$Oracle_home/dba
$Oracle_home/db

Answer

Correct Option: B

Question 5

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

technology programming languages

$Oracle_home/network/administrator
$Oracle_home/db/administrator
$Oracle_home/network/admin
$Oracle_home/db/admin

Answer

Correct Option: C

Question 6

Maximum number of datafiles per DB are ?

technology programming languages

128,000
64,000
32,000
16,000

Answer

Correct Option: B

Question 7

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

technology programming languages

234
334
2334
0123456
01234456
12334567

AI Explanation

AI 1

To answer this question, let's analyze the given code and the command line arguments.

The code uses regular expressions to search for a pattern in a given input string. The command line argument args[0] is used to define the regular expression pattern, and args[1] is the input string on which the pattern is matched.

In this case, the regular expression pattern is \d*, which matches zero or more consecutive digits.

The input string is "ab34ef".

The code uses a Matcher object m to find matches of the pattern in the input string. The find() method of the Matcher class is used in a while loop to find all occurrences of the pattern.

Inside the while loop, the code prints the start index of each match (m.start()) followed by the matched substring (m.group()).

Let's go through each option to understand why it is correct or incorrect:

Option A) 234 - This option is incorrect because it only includes one occurrence of the pattern. The code will find multiple occurrences of the pattern.

Option B) 334 - This option is incorrect because it only includes one occurrence of the pattern. The code will find multiple occurrences of the pattern.

Option C) 2334 - This option is incorrect because it only includes one occurrence of the pattern. The code will find multiple occurrences of the pattern.

Option D) 0123456 - This option is incorrect because it includes all the digits in the input string, but it doesn't include the non-digit characters. The code will find multiple occurrences of the pattern.

Option E) 01234456 - This option is correct because it includes all the digits in the input string, as well as the non-digit characters. The code will find multiple occurrences of the pattern and print the start index followed by the matched substring for each occurrence.

Option F) 12334567 - This option is incorrect because it doesn't include the non-digit characters in the input string. The code will find multiple occurrences of the pattern.

The correct answer is E. This option is correct because it includes all the digits in the input string, as well as the non-digit characters. The code will find multiple occurrences of the pattern and print the start index followed by the matched substring for each occurrence.

Answer

Correct Option: E

Question 8

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.)

technology programming languages

Car
Ford
Dodge
Wheels
Vehicle

Answer

Correct Option: A,B

Question 9

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.)

technology programming languages

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

Answer

Correct Option: B

Question 10

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() + " "); }

technology programming languages

The before() method will print 1 2
The before() method will print 1 2 3
The before() method will print three numbers, but the order cannot be determined
The before() method will not compile
The before() method will throw an exception at runtime

Answer

Correct Option: E

Question 11

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. }

technology programming languages

1 2
2 2
2 3
Compilation fails
Exception occurs at runtime

Answer

Correct Option: E

Question 12

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

technology programming languages

True
False

Answer

Correct Option: A

Question 13

How many sections are there in data division

technology programming languages

4
6
3
2

Answer

Correct Option: B

Question 14

which of the following is mandatory for cobol program.

technology programming languages

identification division and program id
identification division and data division
identification division and report section
identification division linkage section and program id

Answer

Correct Option: A

Question 15

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

technology programming languages

True
False

Answer

Correct Option: A

Question 16

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

technology programming languages

True
False

Answer

Correct Option: B

Question 17

Which is responsible for dot net framework language interoperability

technology programming languages

JIT
Language Specific Compiler
MSIL
CTS

Answer

Correct Option: C

Question 18

The above code compiles in __ language?

technology programming languages

JAVA
C#
works in java but not in C#
works in C# but not in JAVA
works in both languages

Answer

Correct Option: C

Question 19

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;

technology programming languages

0
2
error
1

Answer

Correct Option: D

Question 20

Which of the following statements is true :

technology programming languages

inner join and intersect are same
left join and union are same
inner join when used with distinct can simulate intersect
inner join and union are same

Answer

Correct Option: C

Description: programming languages Online Quiz - 50
Number of Questions: 20
Created by: Aliensbrain Bot
Tags: programming languages

programming languages Online Quiz - 50

AI Explanation

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