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.

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.
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Answer: B,C
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Last Answer : The input, or clock pulse.

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

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Last Answer : A) i, ii, iii only

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

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

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

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Last Answer : (C) both s1 and s2

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Last Answer : D) All of the above.

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Last Answer : B) True, False

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Last Answer : (C) Friend functions are members of a class.

What is an abstract class?

Description : What is an abstract class?

Last Answer : A: An abstract class is a class that is declared abstract—it may or may not include abstract methods. Abstract classes cannot be instantiated, but they can be subclassed.

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Last Answer : D) an interface that defines methods to read primitive data types.

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Last Answer : D) an interface that defines methods to read primitive data types.

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Last Answer : C) i-true, ii-false

A ………………. Is a class whose instances themselves are classes. A) Subclass B) Abstract Class C) Meta Class D) Object Class

Description : A ………………. Is a class whose instances themselves are classes. A) Subclass B) Abstract Class C) Meta Class D) Object Class

Last Answer : C) Meta Class

Which of the following is used to make an Abstract class ? (A) Making atleast one member function as pure virtual function (B) Making atleast one member function as virtual function (C) Declaring as Abstract class using virtual keyword (D) Declaring as Abstract class using static keyword

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Last Answer : (A) Making atleast one member function as pure virtual function

Which of the following statement(s) with regard to an abstract class in JAVA is/are TRUE? I. An abstract class is one that is not used to create objects. II. An abstract class is designed only to act as a base class to be inherited by other classes. (1) Only l (2) Only II (3) Neither I nor II (4) Both l and II

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Last Answer : Both l and II

A method name myMethod( ) that needs two integer arguments is declared as A) public void myMethod( ); B) public void myMethod(int a, int b); C) public void myMethod(int a, b); D) public int myMethod(a, b);

Description : A method name myMethod( ) that needs two integer arguments is declared as A) public void myMethod( ); B) public void myMethod(int a, int b); C) public void myMethod(int a, b); D) public int myMethod(a, b);

Last Answer : B) public void myMethod(int a, int

What is an abstract method?

Description : What is an abstract method?

Last Answer : A: An abstract method is a method that is declared without an implementation (without braces, and followed by a semicolon), like this: abstract void point(double x, double y);

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Last Answer : (B) Abstract data types do not allow inheritance

Which one of the following is a correct implementation of the metapredicate “not” in PROLOG (Here G represents a goal) ? (A) not(G):– !, call(G), fail. not(G). (B) not(G):– call(G), !, fail. not(G). (C) not(G):– call(G), fail, !. not(G). (D) not(G):– call(G), fail. not(G):– !.

Description : Which one of the following is a correct implementation of the metapredicate “not” in PROLOG (Here G represents a goal) ? (A) not(G):– !, call(G), fail. not(G). (B) not(G):– call(G), !, fail. not(G). (C) not(G):– call(G), fail, !. not(G). (D) not(G):– call(G), fail. not(G):– !.

Last Answer : (B) not(G):– call(G), !, fail. not(G).

Which of the following is true ? I. Implementation of self-join is possible in SQL with table alias. II. Outer-join operation is basic operation in relational algebra. III. Natural join and outer join operations are equivalent. (A) I and II are correct. (B) II and III are correct. (C) Only III is correct. (D) Only I is correct.

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Last Answer : (D) Only I is correct.

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Last Answer : A) Not necessary

When an array is passed as a parameter to a function which of the following statements is correct? (A) The function can change values in the original array. (B) The function cannot change values in the original array. (C) Results in compilation error. (D) Results in runtime error.

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Last Answer : (A) The function can change values in the original array.

When an array is passed as parameter to a function, which of the following statements is correct ? (A) The function can change values in the original array. (B) In C, parameters are passed by value, the function cannot change the original value in the array. (C) It results in compilation error when the function tries to access the elements in the array. (D) Results in a run time error when the function tries to access the elements in the array.

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Last Answer : (A) The function can change values in the original array.

With respect to a loop in the transportation table, which one of the following is not correct? (1) Every loop has an odd no. of cells and at least 5. (2) Closed loops may or may not b square in shape. (3) All the cells in the loop that have a plus or minus sign, except the starting cell, must be occupied cells. (4) Every loop has an even no. of cells and at least four.

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Last Answer : Every loop has an odd no. of cells and at least 5.

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Last Answer : (D) S1 is correct and S2 is correct. 

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

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

State True or False. i) Master Development Plan basically is a schedule of various applications to be comprised. ii) It consists of start and finish dates of a system analysis, design implementation and maintenance activities. A) i-True, ii-True B) i-False, ii-True C) i-True, ii-False D) i-False, ii-False

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Last Answer : A) i-True, ii-True

STRIPS addresses the problem of efficiently representing and implementation of a planner. It is not related to which one of the following ? (A) SHAKEY (B) SRI (C) NLP (D) None of these

Description : STRIPS addresses the problem of efficiently representing and implementation of a planner. It is not related to which one of the following ? (A) SHAKEY (B) SRI (C) NLP (D) None of these

Last Answer : (C) NLP

For the implementation of a paging scheme, suppose the average process size be x bytes, the page size be y bytes, and each page entry requires z bytes. The optimum page size that minimizes the total overhead due to the page table and the internal fragmentation loss is given by (A) x/2 (B) xz/2 (C) √2xz (D) (√xz)/2

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Last Answer : (C) √2xz 

Which of the following is not an inherent application of stack? (A) Implementation of Stack (B) Evaluation of a postfix expression (C) Job Scheduling (D) Reverse a string

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Last Answer : (C) Job Scheduling

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Last Answer : A) JDBC calls, network protocol

Evaluating testability of the requirements and system are a part of which phase:- a) Test Analysis and Design b) Test Planning and control c) Test Implementation and execution d) Evaluating exit criteria and reporting Q4. One of the fields on a form contains a text box which accepts alphabets in lower or upper case. Identify the invalid Equivalence class value.

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Last Answer : a) Test Analysis and Design

Given the following statements : S1 : SLR uses follow information to guide reductions. In case of LR and LALR parsers, the look-aheads are associated with the items and they make use of the left context available to the parser. S2 : LR grammar is a larger sub-class of context free grammar as compared to that SLR and LALR grammars. Which of the following is true ? (A) S1 is not correct and S2 is not correct. (B) S1 is not correct and S2 is correct. (C) S1 is correct and S2 is not correct. (D) S1 is correct and S2 is correct.

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Last Answer : (D) S1 is correct and S2 is correct.

Consider the following two statements: (a) A publicly derived class is a subtype of its base class. (b) Inheritance provides for code reuse. Which of the following statements is correct? (A) Both the statements (a) and (b) are correct (B) Neither of the statements (a) and (b) are correct (C) Statement (a) is correct and (b) is incorrect (D) Statement (a) is incorrect and (b) is correct

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Last Answer : Answer: A

Given the following statements : (A) A class of languages that is closed under union and complementation has to be closed under intersection. (B) A class of languages that is closed under union and intersection has to be closed under complementation. Which of the following options is correct? (1) Both (A) and (B) are false. (2) Both (A) and (B) are true. (3) (A) is true, (B) is false. (4) (A) is false, (B) is true.

Description : Given the following statements : (A) A class of languages that is closed under union and complementation has to be closed under intersection. (B) A class of languages that is closed under union and intersection has to be closed under ... (3) (A) is true, (B) is false. (4) (A) is false, (B) is true.

Last Answer : (A) is true, (B) is false.