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Quark Interview Questions

1. What does the following do: void afunction(int *x) { x=new int; *x=12; } int main() { int v=10; afunction(&v); cout< 7290

How long does this loop run: for(int x=0; x=3; x++) a) Never b) Three times c) Forever

38116

Which uses less memory? a) struct astruct { int x; float y; int v; }; b) union aunion { int x; float v; }; c) char array[10];

6376

Evaluate: int fn(int v) { if(v==1 || v==0) return 1; if(v%2==0) return fn(v/2)+2; else return fn(v-1)+3; } for fn(7); a) 10 b) 11 c) 1

8041

Which of the Standard C++ casts can be used to perform a ?safe? downcast: a) reinterpret_cast b) dynamic_cast c) static_cast d) const_cast

5475

class professor {}; class teacher : public virtual professor {}; class researcher : public virtual professor {}; class myprofessor : public teacher, public researcher {}; Referring to the sample code above, if an object of class "myprofessor" were created, how many instances of professor will it contain? a) 0 b) 1 c) 2 d) 3 e) 4

8338

string somestring ; Which of the following choices will convert a standard C++ string object "somestring" to a C string? a) Copy.somestring () ; b) somestring.c_str () c) &somestring [1] d) std::cstring (somestring) e) (char *) somestring

5576

class basex { int x; public: void setx(int y) {x=y;} }; class derived : basex {}; What is the access level for the member function "setx" in the class "derived" above? a) private b) local c) global d) public e) protected

6428

class Alpha { public: char data[10000]; Alpha(); ~Alpha(); }; class Beta { public: Beta() { n = 0; } void FillData(Alpha a); private: int n; }; How do you make the above sample code more efficient? a) If possible, make the constructor for Beta private to reduce the overhead of public constructors. b) Change the return type in FillData to int to negate the implicit return conversion from "int" to "void". c) Make the destructor for Alpha virtual. d) Make the constructor for Alpha virtual. e) Pass a const reference to Alpha in FillData

7156

class HasStatic { static int I; }; Referring to the sample code above, what is the appropriate method of defining the member variable "I", and assigning it the value 10, outside of the class declaration? a) HasStatic I = 10; b) int static I = 10; c) static I(10); d) static I = 10; e) int HasStatic::I = 10;

4078

class X { private: int a; protected: X(){cout<<"X constructor was called"< 5392

class Foo { const int x; protected: Foo(int f); ~Foo(); }; Foo f; Referring to the sample code above, why will the class declaration not compile? a) The variable x is const. b) The destructor is protected. c) The destructor is not public. d) The constructor is protected. e) There is no default constructor.

5860

class Foo { public: Foo(int i) { } }; class Bar : virtual Foo { public: Bar() { } }; Bar b; Referring to the above code, when the object 'b' is defined, a compiler error will occur. What action fixes the compiler error? a) Adding a virtual destructor to the class Bar b) Adding a constructor to Bar which takes an int parameter c) Adding "Foo()" to the Bar constructor d) Adding a copy constructor to the class Foo e) Adding "Foo(0)" to the Bar::Bar initializer list

8386

Which one of the following describes characteristics of "protected" inheritance? a) The base class has access only to the public or protected members of the derived class. b) The derived class has non-public, inheritable, access to all but the private members of the base class. c) The derived class has access to all members of the base class. d) The private members of the base class are visible within the derived class. e) Public members of the derived class are privately accessible from the base class.

7497

The "virtual" specifier in a member function enables which one of the following? a) Monmorphism b) Late binding c) Metamorphism d) Solomorphism e) Inheritance

8881

How to format a memory card by using memory card?

218

Explain drupal user, permission, role in drupal?

30

What do you understand by object related structuring of technical objects?

205

811

What is folders structure?

1

Enlist some of the key challenges that are faced while performing software testing.

252

How respond to state transitions on your app in ios?

195

What is the Project Accounting in case of Real Estate or Construction Co`s ?

1626

What is roll-up summary?

52

What is database development process?

200

What is autowired in spring boot? : Spring Boot

131

explain safety measures in alternator?

999

How do I run reports within mss ?

1

Explain how the use of shutdown can improve client performance.

2516

Write code to implement bubble sort in java?

262