The dereferencing operator ………….. is used to access a member when we use pointers to both the  object and the member.
A) ->*
B) .*
C) Any of the above
D) None of the above

1 Answer

Answer :

A) ->*

Related questions

Description : The dereferencing operator ……… is used when the object itself is used width in the member pointer. A) ->* B) .* C) Any of the above D) None of the above

Last Answer : B) .*

Description : Some of the C++ operators cannot overloaded which are i) Member access operators (. And .*) ii) Conditional operator (? :) iii) Scope resolution operator (: :) iv) Size operator (sizeof) A) only i, ii and iii B) only ii, iii and iv C) only ii and iv D) All i, ii, iii and iv

Last Answer : D) All i, ii, iii and iv

Description : Match the following a) : : i) Pointer to member declarator b) : :* ii) Pointer to member operator c) ->* iii) Scope resolution operator A) a-ii, b-iii, c-i B) a-iii, b-i, c-ii C) a-i b-ii, c-iii D) a-iii, b-ii, c-i

Last Answer : B) a-iii, b-i, c-ii

Description : If the queue is implemented with a linked list, keeping track of a front pointer and a rear pointer, which of these pointers will change during an insertion into a non-empty queue? (A) Neither of ... (B) Only front pointer changes (C) Only rear pointer changes (D) Both of the pointers changes

Last Answer : (C) Only rear pointer changes

Description : In C++, the keyword void was used ……….. A) To specify the return type of function when it is not returning any value. B) To indicate an empty argument list to a function. C) To declare the generic pointers. D) All of the above.

Last Answer : D) All of the above.

Description : What does the following declaration mean ? int (*ptr) [10]; (A) ptr is an array of pointers of 10 integers. (B) ptr is a pointer to an array of 10 integers. (C) ptr is an array of 10 integers. (D) none of the above.

Last Answer : (B) ptr is a pointer to an array of 10 integers.

Description : What does the following expression means ? char *(*(* a[N]) ( )) ( ); (A) a pointer to a function returning array of n pointers to function returning character pointers. (B) a ... to characters (D) an array of n pointers to function returning pointers to functions returning pointers to characters.

Last Answer : Answer: A,B,C,D

Description : In Unix operating system, special files are used to : (A) buffer data received in its input from where a process reads (B) provide a mechanism to map physical device to file names (C ... pointers associated with i-nodes (D) store information entered by a user application program or utility program

Last Answer : (B) provide a mechanism to map physical device to file names 

Description : Consider an implementation of unsorted single linked list. Suppose it has its representation with a head and a tail pointer (i.e. pointers to the first and last nodes of the linked list). Given the ... the front node of the linked list. (D) Deletion of the last node of the linked list.

Last Answer : (D) Deletion of the last node of the linked list. 

Description : State True or False. i) A satic function can have access to only other static members (functions or variables) declared in the same class. ii) A static member function can be called using the class name (instead of its objects) A) True, True B) True, False C) False, True D) False, False

Last Answer : B) True, False

Description : Which of the following keywords are used to control access to a class member? A) default B) break C) protected D) goto

Last Answer : C) protected

Description : Which one of the following is correct, when a class grants friend status to another class? (A) The member functions of the class generating friendship can access the members of the friend class. (B) ... the friendship. (C) Class friendship is reciprocal to each other (D) There is no such concept.

Last Answer : All member functions of the class granted friendship have unrestricted access to the members of the class granting the friendship. 

Description : Automatic initialization of object is carried out using a special member function called ………… A) Friend B) Casting C) Reference Parameter D) Constructor

Last Answer : D) Constructor

Description : Which of the following is true about the static member variable in C++. i) It is initialized to zero when the first object of its class is created. Other initialization is also permitted. ii) It is visible only within ... , ii-True B) ii-False, ii-True C) i-True, ii-False D) i-False, iii-False

Last Answer : B) ii-False, ii-True

Description : Which is the protocol for performing RPCs between applications in a language and system independent way? (A) Hyper Text Transmission Protocol (HTTP) (B) Simple Network Management Protocol (SNMP) (C) Simple Object Access Protocol (SOAP) (D) Simple Mail Transfer Protocol (SMTP)

Last Answer : (C) Simple Object Access Protocol (SOAP)

Description : Which of the following statements concerning Object-Oriented databases is FALSE? (A) Objects in an object-oriented database contain not only data but also methods for processing the data. (B ... Object-oriented databases store more types of data than relational databases and access that data faster.

Last Answer : (C) Object-oriented databases are more adapt at handling structures (analytical) data than relational databases.

Description : What error will be generated if a space is given between the logical AND operator (&&)? Will it be a compile-time or a run-time error?

Last Answer : Example: if(5>2 & & 6

Description : State True or False. i) While overloading operators new operator can be overloaded. ii) The binary operator such as +, -, * and must explicitly return a value. A) True, True B) True, False C) False, True D) False, False

Last Answer : C) False, True

Description : Which of the following operates cannot be overloaded? i) Size of operator (sizeof) ii) Scope resolution Operator iii) Conditional operator (?:) iv) Assignment Operator (=) A) i, ii, iii only B) ii, iii, iv only C) i, iii, iv only D) all i, ii, iii, iv

Last Answer : A) i, ii, iii only

Description : The ……………. Operator is known as insertion operator. A) >> B) > C)

Last Answer : C)

Description : Hierarchy decides which operator A) is most important B) is used first C) is fastest D) Operates on largest numbers

Last Answer : B) is used first

Description : . Costs for a computer based information system include the salaries of the system analysts and computer programmers. costs for a computer based information system include the ... ) Development, Development B) Development, Operating C) Operating, Development C) Operating, Operating

Last Answer : B) Development, Operating

Description : Which of the following is not comparison operator? A) B) < C) =< D) >=

Last Answer : C) =

Description : Which of the following is not a binary operator in relational algebra? A) Join B) Semi-Join C) Assignment D) Project

Last Answer : D) Project

Description : ………………….. operator is basically a join followed by a project on the attributes of first relation. A) Join B) Semi-Join C) Full Join D) Inner Join

Last Answer : B) Semi-Join

Description : Select operator is not a unary operator. ii) Project operator chooses subset of attributes or columns of a relation. A) i-True, ii-False B) i-True, ii-True C) i-False, ii-True D) i-False, ii-False

Last Answer : C) i-False, ii-True

Description : The ............ operator preserves unmatched rows of the relations being joined. A) Inner join B) Outer join C) Union D) Union join

Last Answer : B) Outer join

Description : . Which of the following is a comparison operator in SQL? (A) = (B) LIKE (C) BETWEEN (D) All of the above

Last Answer : D) All of the above

Description : Cartesian product in relational algebra is (A) a Unary operator. (B) a Binary operator. (C) a Ternary operator. (D) not defined.

Last Answer : (B) a Binary operator.

Description : What is the output of the following piece of code when executed in Python shell? >>> a=("Check")*3 >>> a a) (‘Check’,’Check’,’Check’) b) * Operator not valid for tuples c) (‘CheckCheckCheck’) d) Syntax erro

Last Answer : c) (‘CheckCheckCheck’)

Description : A fuzzy set A on R is ................. iff A(λx1 + (1 – λ)x2) ≥ min [A(x1), A(x2)] for all x1, x2 ∈ R and all λ ∈ [0, 1], where min denotes the minimum operator. (A) Support (B) α-cut (C) Convex (D) Concave 

Last Answer : (C) Convex 

Description : Refer the points as listed below: (a) What are the operator precedence rules ? (b) What are the operator associativity rules ? (c) What is the order of operand evaluation ? (d) Are there restrictions on operand evaluation side effects ? ... (d) (C) (a), (b) and (d) (D) (a), (b), (c) and (d)

Last Answer : (D) (a), (b), (c) and (d)

Description : The “PROJECT” operator of a relational algebra creates a new table that has always (A) More columns than columns in original table (B) More rows than original table (C) Same number of rows as the original table (D) Same number of columns as the original table

Last Answer : (C) Same number of rows as the original table

Description : A Boolean operator Ө is defined as follows: 1Ө1=1, 1Ө0=0, 0Ө1=0 and 0Ө0=1 What will be the truth value of the expression (xӨy)Өz = xӨ(yӨz)? (A) Always false (B) Always true (C) Sometimes true (D) True when x, y, z are all true

Last Answer : (B) Always true

Description : A byte addressable computer has a memory capacity of 2 m Kbytes and can perform 2 n operations. An instruction involving 3 operands and one operator needs a maximum of (A) 3m bits (B) m + n bits (C) 3m + n bits (D) 3m + n + 30 bits

Last Answer : (D) 3m + n + 30 bits

Description : Which of the following statements is correct? (A) Every class containing abstract method must not be declared abstract. (B) Abstract class cannot be directly initiated with ‘new’ operator. (C) Abstract class cannot be initiated. (D) Abstract class contains definition of implementation.

Last Answer : Answer: B,C

Description : compiler optimization, operator strength reduction uses mathematical identities to replace slow math operations with faster operations. Which of the following code replacements is an illustration of operator strength reduction? (A) Replace P + ... * P or Replace 3 + 4 by 7. (B) Replace P * 32 by P

Last Answer : (B) Replace P * 32 by P

Description : Superficially the term object-oriented , means that, we organize software as a (A) collection of continuous objects that incorporates both data structure and behaviour. (B) collection of ... and behaviour. (D) collection of objects that incorporates both discrete data structure and behaviour.

Last Answer : (C) collection of discrete objects that incorporates both data structure and behaviour.

Description : State true of false. i) We cannot make the function inline by defining a function outside the class. ii) A member function can be called by using its name inside another member function of the same class, this ... of member function. A) True, True B) True, False C) False, True D) False, False

Last Answer : C) False, True

Description : Using which keyword we can access value of the instance variables and class variables of that class inside the method of that class itself. A) super B) final C) this D) either super or this

Last Answer : C) this

Description : The friend functions are used in situations where A) We want to exchange data between classes B) We want to have access to unrelated classes C) Dynamic binding is required D) We want to create versatile overloaded operators.

Last Answer : A) We want to exchange data between classes

Description : Which of the following provides the best description of an entity type? (A) A specific concrete object with a defined set of processes (e.g. Jatin with diabetes) (B) A value given to a ... template for a group of things with the same set of characteristics that may exist in the real world

Last Answer : Answer: D

Description : ………… enable us to hide, inside the object, both the data fields and the methods that act on that data. A) Encapsulation B) Polymorphism C) Inheritance D) Overloading

Last Answer : A) Encapsulation

Description : Which of the following condition is true for an object used as a function argument. i) A copy of the entire objects is passed to the function. ii) Only the address of the object is transferred to the function. A) Only i B) Only ii C) Both i and ii D) None of them

Last Answer : C) Both i and ii

Description : Abstraction and encapsulation are fundamental principles that underlie the object oriented approach to software development. What can you say about the following two statements? I. Abstraction allows us to focus on what something ... and II are correct. (3) Only II is correct. (4) Only I is correct.

Last Answer : (1) Neither I nor II is correct.