Related InterviewSolutions

• In C++, what is the sign of character data type by default?(a) Signed(b) Unsigned(c) Implementation dependent(d) Unsigned ImplementationI have been asked this question in an international level competition.I'm obligated to ask this question of Character Types topic in portion Types, Pointers, Arrays & Structures in C++ of C++
• Which function is used to check whether a character is a number?(a) isalpha()(b) isalnum()(c) isdigit()(d) isblank()I had been asked this question in an international level competition.Enquiry is from Character Classification topic in section Types, Pointers, Arrays & Structures in C++ of C++
• The pointer can point to any variable that is not declared with which of these?(a) const(b) volatile(c) both const & volatile(d) staticThe question was asked in an internship interview.The query is from Pointer to Void in section Types, Pointers, Arrays & Structures in C++ of C++
• The void pointer can point to which type of objects?(a) int(b) float(c) double(d) all of the mentionedI have been asked this question in an interview.Enquiry is from Pointer to Void topic in division Types, Pointers, Arrays & Structures in C++ of C++
• How do we represent a wide character of the form wchar_t?(a) L’a’(b) l’a’(c) L[a](d) laI have been asked this question in class test.This interesting question is from Character Types topic in section Types, Pointers, Arrays & Structures in C++ of C++
• What is the size of wchar_t in C++?(a) 2(b) 4(c) 2 or 4(d) Based on the number of bits in the systemThis question was posed to me in an international level competition.This intriguing question comes from Types in section Types, Pointers, Arrays & Structures in C++ of C++
• What is the index number of the last element of an array with 9 elements?(a) 9(b) 8(c) 0(d) Programmer-definedI have been asked this question in quiz.The question is from Arrays topic in chapter Types, Pointers, Arrays & Structures in C++ of C++
• Which of the following correctly declares an array?(a) int array[10];(b) int array;(c) array{10};(d) array array[10];This question was posed to me in a national level competition.My doubt stems from Arrays in chapter Types, Pointers, Arrays & Structures in C++ of C++
• Which of the following is a properly defined structure?(a) struct {int a;}(b) struct a_struct {int a;}(c) struct a_struct int a;(d) struct a_struct {int a;};The question was asked by my college director while I was bunking the class.The doubt is from Structures in portion Types, Pointers, Arrays & Structures in C++ of C++
• What is the difference between references and pointers?(a) References are an alias for a variable whereas pointer stores the address of a variable(b) References and pointers are similar(c) References stores address of variables whereas pointer points to variables(d) Pointers are an alias for a variable whereas references stores the address of a variableThe question was asked by my school principal while I was bunking the class.My doubt stems from References topic in division Types, Pointers, Arrays & Structures in C++ of C++