Job Solution - তথ্য প্রযুক্তি - Page 76 - Prothom Sir

1.

How many 'I's will be there in the binary representation of the following expression (assume 16 bit nubmber _ 12 + 64 + 128 + 256 + 1024 )

১০

৮

6

৯

১০

৮

6

৯

2.

which alternative can replace the throw statement in C++ ?

for

Break

return

exit

for

Break

return

exit

3.

what type of reference should be used in vector arithmetic in C++ =?

dynamic

Const

both dynamic & const

static

dynamic

Const

both dynamic & const

static

4.

which of these data types is used by operating system to manage the Recursion in Java?

Array

stack

queue

Tree

Array

stack

queue

Tree

5.

which of the following is an incorrect statement about packages?

Package defines a namespace in which classes are stored

A package can contain other packages within it

Java uses file system directories to store packages

A package can be renamed without renaming the directory in which the classes are stored.

Package defines a namespace in which classes are stored

A package can contain other packages within it

Java uses file system directories to store packages

A package can be renamed without renaming the directory in which the classes are stored.

6.

A derived class inherits attributes from a __ .

super class

Sub class

Inner class

Upper class

super class

Sub class

Inner class

Upper class

7.

Multiple inheritance in Java can be implemented using which of the following ?

Inter faces

Multithreading

Protected methods

Private methods

Inter faces

Multithreading

Protected methods

Private methods

8.

which component is used to compile , debug and execute java program?

JVM

JDK

JTT

JRE

JVM

JDK

JTT

JRE

9.

which of the following statements is the negation of the statements '4 is odd or -9 is positive'?

4 is even or - 9 is not negative

4 is odd or 9 is not negative

4 is even and - 9 is negative

4 is odd and - 9 is not negative

4 is even or - 9 is not negative

4 is odd or 9 is not negative

4 is even and - 9 is negative

4 is odd and - 9 is not negative

10.

which of the following options suitable, if A is '10110110'. B is '1110000' and C is '10100000' ?

C=A or B

C =A

C =B

C = A and B

C=A or B

C =A

C =B

C = A and B

11.

The complexity of Binary search algorithm is ___

O (n)

O (log n)

O (

n^{2})

O ( n log n )

O (n)

O (log n)

O (

n^{2})

O ( n log n )

12.

A nonstandard HTML extension that causes scrolling text to appear as part of a Web page is :

DHCP

mask off

Dhrystone

marquce

DHCP

mask off

Dhrystone

marquce

13.

Object being passed to a copy constructor __

Must be passed by reference

Must be passed by value

Must be passed with integer type

Must not be mentioned in parameter list

Must be passed by reference

Must be passed by value

Must be passed with integer type

Must not be mentioned in parameter list

14.

why do we need to handle exceptions?

To prevent abnormal termination of program

To encourage exception prone program

To avoid syntax errors

To save memory

To prevent abnormal termination of program

To encourage exception prone program

To avoid syntax errors

To save memory

15.

If same message is passed to objects of several different classes and all of those can respond in a different way, what is this feature called?

inheritance

Overloading

Polymorphism

Overriding

inheritance

Overloading

Polymorphism

Overriding

16.

Does constructor overloading include different return types for constructors to be overloaded ?

Yes, If return types are different, signature becomes different

Yes, because return types can differentiate two functions

No, return type can't differentiate two functions

No, constructors doesn't have any return type

Yes, If return types are different, signature becomes different

Yes, because return types can differentiate two functions

No, return type can't differentiate two functions

No, constructors doesn't have any return type

17.

2019 is Binary :

0000011111100010

0000001111110010

0000001111110011

0000011111100011

0000011111100010

0000001111110010

0000001111110011

0000011111100011

18.

An array contains the following letters. Color ={ E, L,E,C,T,I,O,N} The value of the variable, E =3 , color [E] points to which value?

e

C

T

L

e

C

T

L

19.

How to access the overridden method of base class from the derived class?

Using arrow operator

using dot operator

using scope resolution operator

Can't be accessed once overridden

Using arrow operator

using dot operator

using scope resolution operator

Can't be accessed once overridden

20.

11100010 has a decimal value of __

252

২২৫

২২৬

220

252

২২৫

২২৬

220