A horn clause is ...................... (A) A clause in which no variables occur in the expression (B) A clause that has at least one negative literal (C) A disjunction of a number of literals (D) A clause that has at most one positive literal

A horn clause is ...................... (A) A clause in which no variables occur in the expression (B) A clause that has at least one negative literal (C) A disjunction of a number of literals (D) A clause that has at most one positive literal
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Answer :

(D) A clause that has at most one positive literal 
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Related questions

Which one of the following is true? (A) The resolvent of two Horn clauses is not a Horn clause. (B) The resolvent of two Horn clauses is a Horn Clause. (C) If we resolve a negated goal G against a fact or rule A to get Clause C then C has positive literal and non null-goal. (D) If we resolve a negated goal G against a fact or rule A to get clause C then C has positive literal or null goal.

Description : Which one of the following is true? (A) The resolvent of two Horn clauses is not a Horn clause. (B) The resolvent of two Horn clauses is a Horn Clause. (C) If we resolve a negated goal G against a ... negated goal G against a fact or rule A to get clause C then C has positive literal or null goal. 

Last Answer : (B) The resolvent of two Horn clauses is a Horn Clause.

A Horn clause is a clause with _______ positive literal. a) At least one b) At most one c) None d) All

Description : A Horn clause is a clause with _______ positive literal. a) At least one b) At most one c) None d) All

Last Answer : b) At most one

What kind of clauses are available in Conjunctive Normal Form? a) Disjunction of literals b) Disjunction of variables c) Conjunction of literals d) Conjunction of variables

Description : What kind of clauses are available in Conjunctive Normal Form? a) Disjunction of literals b) Disjunction of variables c) Conjunction of literals d) Conjunction of variables

Last Answer : a) Disjunction of literals

Which are more suitable normal form to be used with definite clause? a) Positive literal b) Negative literal c) Generalized modus ponens d) Neutral literal

Description : Which are more suitable normal form to be used with definite clause? a) Positive literal b) Negative literal c) Generalized modus ponens d) Neutral literal

Last Answer : c) Generalized modus ponens

In Artificial Intelligence (AI), what is present in the planning graph? (1) Sequence of levels (2) Literals (3) Variables (4) Heuristic estimates

Description : In Artificial Intelligence (AI), what is present in the planning graph? (1) Sequence of levels (2) Literals (3) Variables (4) Heuristic estimates

Last Answer : Sequence of levels

Which form is called as a conjunction of disjunction of literals? a) Conjunctive normal form b) Disjunctive normal form c) Normal form d) All of the mentioned

Description : Which form is called as a conjunction of disjunction of literals? a) Conjunctive normal form b) Disjunctive normal form c) Normal form d) All of the mentioned

Last Answer : a) Conjunctive normal form

The objective of .................. procedure is to discover at least one ............... that causes two literals to match. (A) unification, validation (B) unification, substitution (C) substitution, unification (D) minimax, maximum

Description : The objective of .................. procedure is to discover at least one ............... that causes two literals to match. (A) unification, validation (B) unification, substitution (C) substitution, unification (D) minimax, maximum

Last Answer : (B) unification, substitution

What can be viewed as a single lateral of disjunction? a) Multiple clause b) Combine clause c) Unit clause d) None of the mentioned

Description : What can be viewed as a single lateral of disjunction? a) Multiple clause b) Combine clause c) Unit clause d) None of the mentioned

Last Answer : c) Unit clause

If m and n are int type variables, what will be the result of the expression m% n when m=5 and n=2 ? A) 0 B) 1 C) 2 D) None of the above

Description : If m and n are int type variables, what will be the result of the expression m% n when m=5 and n=2 ? A) 0 B) 1 C) 2 D) None of the above

Last Answer : B) 1

Where does the degree of belief is applied? a) Propositions b) Literals c) Variables d) Statements

Description : Where does the degree of belief is applied? a) Propositions b) Literals c) Variables d) Statements

Last Answer : a) Propositions

What are present in each level of planning graph? a) Literals b) Actions c) Variables d) Both Literals & Actions

Description : What are present in each level of planning graph? a) Literals b) Actions c) Variables d) Both Literals & Actions

Last Answer : d) Both Literals & Actions

What is the condition of variables in first-order literals? a) Existentially quantified b) Universally quantified c) Both Existentially & Universally quantified d) None of the mentioned

Description : What is the condition of variables in first-order literals? a) Existentially quantified b) Universally quantified c) Both Existentially & Universally quantified d) None of the mentioned

Last Answer : b) Universally quantified

Let P(m,n) be the statement “m divides n” where the Universe of discourse for both the variables is the set of positive integers. Determine the truth values of the following propositions. (a) ∃m ∀n P(m,n) (b) ∀n P(1,n) (c) ∀m ∀n P(m,n) (A) (a)-True; (b)-True; (c)-False (B) (a)-True; (b)-False; (c)-False (C) (a)-False; (b)-False; (c)-False (D) (a)-True; (b)-True; (c)-True

Description : Let P(m,n) be the statement m divides n where the Universe of discourse for both the variables is the set of positive integers. Determine the truth values of the following propositions. (a) ∃m ∀n P(m,n) (b) ∀n P(1,n) ( ... -False (C) (a)-False; (b)-False; (c)-False (D) (a)-True; (b)-True; (c)-True

Last Answer : Answer: A

Among the following which is not a horn clause? a) p b) Øp V q c) p → q d) p → Øq

Description : Among the following which is not a horn clause? a) p b) Øp V q c) p → q d) p → Øq

Last Answer : d) p → Øq

All of the following statements are true regarding risk events except which one? Choose the least correct answer.A. Project risks are uncertain events. B. If risks occur, they can have a positive or negative effect on project objectives. C. Unknown risks are threats to the project objectives, and nothing can be done to plan for them. D. Risks that have more perceived rewards to the organization than the consequences of the risk should be accepted.

Description : All of the following statements are true regarding risk events except which one?  Choose the least correct answer. A. Project risks are uncertain events.  B. If risks occur, they can ... that have more perceived rewards to the organization than the consequences of  the risk should be accepted.

Last Answer : C. Unknown risks are threats to the project objectives, and nothing can be done to  plan for them.

System.in.read() is being used, the program must specify the .................. clause. A) throws.java.out.IOException B) throws.java.in.IOException C) throws.java.io.IOException D) throws.java.io.InException

Description : System.in.read() is being used, the program must specify the .................. clause. A) throws.java.out.IOException B) throws.java.in.IOException C) throws.java.io.IOException D) throws.java.io.InException

Last Answer : C) throws.java.io.IOException

……………..specifies a search condition for a group or an aggregate. A) GROUP BY Clause B) HAVING Clause C) FROM Clause D) WHERE Clause

Description : ……………..specifies a search condition for a group or an aggregate. A) GROUP BY Clause B) HAVING Clause C) FROM Clause D) WHERE Clause

Last Answer : B) HAVING Clause

In snapshot, …………………. clause tells oracle how long to wait between refreshes. A) Complete B) Force C) Next D) Refresh

Description : In snapshot, …………………. clause tells oracle how long to wait between refreshes. A) Complete B) Force C) Next D) Refresh

Last Answer : D) Refresh

…………….. is the complex search criteria in the where clause. A) Substring B) Drop Table C) Predict D) Predicate

Description : …………….. is the complex search criteria in the where clause. A) Substring B) Drop Table C) Predict D) Predicate

Last Answer : D) Predicate

……………… clause is an additional filter that is applied to the result. A) Select B) Group-by C) Having D) Order by

Description : ……………… clause is an additional filter that is applied to the result. A) Select B) Group-by C) Having D) Order by

Last Answer : C) Having

‘AS’ clause is used in SQL for (A) Selection operation. (B) Rename operation. (C) Join operation. (D) Projection operation.

Description : ‘AS’ clause is used in SQL for (A) Selection operation. (B) Rename operation. (C) Join operation. (D) Projection operation.

Last Answer : (B) Rename operation.

Which of the following is false for the programming language PROLOG? (A) A PROLOG variable can only be assigned to a value once (B) PROLOG is a Strongly Typed Language. (C) The scope of a variable in PROLOG is a single clause or rule. (D) the scope of a variable in PROLOG is a Single Query

Description : Which of the following is false for the programming language PROLOG? (A) A PROLOG variable can only be assigned to a value once (B) PROLOG is a Strongly Typed Language. (C) The scope of a variable in PROLOG is a single clause or rule. (D) the scope of a variable in PROLOG is a Single Query

Last Answer : (B) PROLOG is a Strongly Typed Language.

Horn clauses are special kinds of propositions which can be described as (A) Single atomic proposition on left side. (B) Single or multiple atomic proposition on left side. (C) A single atomic proposition on left side and a single atomic proposition on right side. (D) A single atomic proposition on left side or an empty left side.

Description : Horn clauses are special kinds of propositions which can be described as (A) Single atomic proposition on left side. (B) Single or multiple atomic proposition on left side. (C) A single atomic ... proposition on right side. (D) A single atomic proposition on left side or an empty left side.

Last Answer : (D) A single atomic proposition on left side or an empty left side.

Binary code "0" means ............ A) State of absence B) State of presence C) State of Negative D) State of Positive

Description : Binary code "0" means ............ A) State of absence B) State of presence C) State of Negative D) State of Positive

Last Answer : B) State of presence

. Non-negativity condition in an LP model implies a. A positive coefficient of variables in objective function b. A positive coefficient of variables in any constraint c. Non-negative value of resources d. None of the above

Description : . Non-negativity condition in an LP model implies a. A positive coefficient of variables in objective function b. A positive coefficient of variables in any constraint c. Non-negative value of resources d. None of the above

Last Answer : d. None of the Above

A hypothesis that States the nature (positive or negative) of the interaction between two or more variables is called a. Associated Hypothesis b. Casual Hypothesis c. Null Hypothesis d. Directional Hypothesis

Description : A hypothesis that States the nature (positive or negative) of the interaction between two or more variables is called a. Associated Hypothesis b. Casual Hypothesis c. Null Hypothesis d. Directional Hypothesis

Last Answer : d. Directional Hypothesis

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

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

State true or false for Java Program. i) All class variables are instance variables ii) All protected methods are friendly methods A) i-false, ii-false B) i-false, ii-true

Description : State true or false for Java Program. i) All class variables are instance variables ii) All protected methods are friendly methods A) i-false, ii-false B) i-false, ii-true

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

In Java variables, if first increment of the variable takes place and then the assignment occurs. This operation is also called ............................. . A) pre increment B) post increment C) incrementation D) pre incrementation

Description : In Java variables, if first increment of the variable takes place and then the assignment occurs. This operation is also called ............................. . A) pre increment B) post increment C) incrementation D) pre incrementation

Last Answer : A) pre increment

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

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

Some of the situations where inline expansion may not work are: A) For functions returning values, if a loop, a switch or goto exists. B) If functions contain static variables and they are re-cursive. C) For functions not returning values, if return statement exist. D) All of the above.

Description : Some of the situations where inline expansion may not work are: A) For functions returning values, if a loop, a switch or goto exists. B) If functions contain static variables and they are re-cursive. C) For functions not returning values, if return statement exist. D) All of the above.

Last Answer : D) All of the above.

…………. Refer to the names of variables, functions, arrays, classes etc. created by the programmer. A) Keywords B) Identifiers C) Constraints D) Strings

Description : …………. Refer to the names of variables, functions, arrays, classes etc. created by the programmer. A) Keywords B) Identifiers C) Constraints D) Strings

Last Answer : B) Identifiers

A structure brings together a group of A) items of the same data type B) related data items and variables C) integers with user defined names D) floating points with user defined names

Description : A structure brings together a group of A) items of the same data type B) related data items and variables C) integers with user defined names D) floating points with user defined names

Last Answer : B) related data items and variables

Which of the following is FALSE in C? A) Keywords can be used as variable names B) Variable names can contain a digit C) Variable names do not contain a blank space D) Capital letters can be used in variables

Description : Which of the following is FALSE in C? A) Keywords can be used as variable names B) Variable names can contain a digit C) Variable names do not contain a blank space D) Capital letters can be used in variables

Last Answer : A) Keywords can be used as variable names

.............. predicate calculus allows quantified variables to refer to objects in the domain of discourse and not to predicates or functions. (A) Zero-order (B) First-order (C) Second-order (D) High-order

Description : .............. predicate calculus allows quantified variables to refer to objects in the domain of discourse and not to predicates or functions. (A) Zero-order (B) First-order (C) Second-order (D) High-order

Last Answer : (B) First-order

Which one of the following describes the syntax of prolog program ? I. Rules and facts are terminated by full stop (.) II. Rules and facts are terminated by semicolon (;) III. Variables names must start with upper case alphabets. IV. Variables names must start with lower case alphabets. Codes : (A) I, II (B) III, IV (C) I, III (D) II, IV

Description : Which one of the following describes the syntax of prolog program ? I. Rules and facts are terminated by full stop (.) II. Rules and facts are terminated by semicolon (;) III. Variables names must start with upper case alphabets. ... alphabets. Codes : (A) I, II (B) III, IV (C) I, III (D) II, IV

Last Answer : (C) I, III

Let Pi and Pj be two processes, R be the set of variables read from memory, and W be the set of variables written to memory. For the concurrent execution of two processes Pi and Pj, which of the following conditions is not true? (A) R(Pi)∩W(Pj)=Φ (B) W(Pi)∩R(Pj)=Φ (C) R(Pi)∩R(Pj)=Φ (D) W(Pi)∩W(Pj)=Φ

Description : Let Pi and Pj be two processes, R be the set of variables read from memory, and W be the set of variables written to memory. For the concurrent execution of two processes Pi and Pj, which of the following conditions is not true? (A) R(Pi)∩W(Pj)=Φ (B) W(Pi)∩R(Pj)=Φ (C) R(Pi)∩R(Pj)=Φ (D) W(Pi)∩W(Pj)=Φ

Last Answer : (C) R(Pi)∩R(Pj)=Φ 

In constraint satisfaction problem, constraints can be stated as . (A) Arithmatic equations and inequalities that bind the values of variables (B) Arithmatic equations and inequalities that doesn’t bind any restriction over variables (C) Arithmatic equations that impose restrictions over variables (D) Arithmatic equations that discard constraints over the given variables

Description : In constraint satisfaction problem, constraints can be stated as . (A) Arithmatic equations and inequalities that bind the values of variables (B) Arithmatic equations and inequalities ... impose restrictions over variables (D) Arithmatic equations that discard constraints over the given variables

Last Answer : (A) Arithmatic equations and inequalities that bind the values of variables

Match the following types of variables with the corresponding programming languages: (a) Static variables (i) Local variables in Pascal (b) Stack dynamic (ii) All variables in APL (c) Explicit heap dynamic (iii) Fortran 77 (d) Implicit heap dynamic (iv) All objects in JAVA Codes: (a) (b) (c) (d) (A) (i) (iii) (iv) (ii) (B) (iv) (i) (iii) (ii) (C) (iii) (i) (iv) (ii) (D) (ii) (i) (iii) (iv)

Description : Match the following types of variables with the corresponding programming languages: (a) Static variables (i) Local variables in Pascal (b) Stack dynamic (ii) All variables in APL (c) Explicit heap dynamic (iii) Fortran 77 (d) Implicit ... (ii) (C) (iii) (i) (iv) (ii) (D) (ii) (i) (iii) (iv)

Last Answer : (C) (iii) (i) (iv) (ii) 

For a program of k variables, boundary value analysis yields .............. test cases. (A) 4k – 1 (B) 4k (C) 4k + 1 (D) 2k – 1

Description : For a program of k variables, boundary value analysis yields .............. test cases. (A) 4k – 1 (B) 4k (C) 4k + 1 (D) 2k – 1

Last Answer : (C) 4k + 1

Distribution of a report is always restricted when a. Negative assurance is given. b. A review has been performed. c. There is a positive expression of opinion. d. Agreed-upon procedures have been performed

Description : Distribution of a report is always restricted when a. Negative assurance is given. b. A review has been performed. c. There is a positive expression of opinion. d. Agreed-upon procedures have been performed

Last Answer : Agreed-upon procedures have been performed

Suppose d = {“john”:40, “peter”:45}, what happens when we try to retrieve a value using the expression d[“susan”]? a) Since “susan” is not a value in the set, Python raises a KeyError exception b) It is executed fine and no exception is raised, and it returns None c) Since “susan” is not a key in the set, Python raises a KeyError exception d) Since “susan” is not a key in the set, Python raises a syntax error

Description : Suppose d = { john :40, peter :45}, what happens when we try to retrieve a value using the expression d[ susan ]? a) Since susan is not a value in the set, Python raises a KeyError ... Python raises a KeyError exception d) Since susan is not a key in the set, Python raises a syntax error

Last Answer : c) Since “susan” is not a key in the set, Python raises a KeyError exception

The number of strings of length 4 that are generated by the regular expression (0|∈) 1+2* (3|∈), where | is an alternation character, {+, *} are quantification characters, and ∈ is the null string, is: (A) 08 (B) 10 (C) 11 (D) 12

Description : The number of strings of length 4 that are generated by the regular expression (0|∈) 1+2* (3|∈), where | is an alternation character, {+, *} are quantification characters, and ∈ is the null string, is: (A) 08 (B) 10 (C) 11 (D) 12

Last Answer : (D) 12

The number of strings of length 4 that are generated by the regular expression (0+1 +|2+3 + )*, where | is an alternation character and {+, *} are quantification characters, is: (A) 08 (B) 09 (C) 10 (D) 12

Description : The number of strings of length 4 that are generated by the regular expression (0+1 +|2+3 + )*, where | is an alternation character and {+, *} are quantification characters, is: (A) 08 (B) 09 (C) 10 (D) 12

Last Answer : (C) 10

What scenario could occur without the supremacy clause?

Description : What scenario could occur without the supremacy clause?

Last Answer : A state could ignore the Nineteenth Amendment and pass a law forbidding women to

Which makes the complexity of the entire algorithm quadratic in the size? a) Clause b) Inference c) Resolution d) Occur check

Description : Which makes the complexity of the entire algorithm quadratic in the size? a) Clause b) Inference c) Resolution d) Occur check

Last Answer : d) Occur check

What is non-disjunction ?

Description : What is non-disjunction ?

Last Answer : During meiosis cell division, in the anaphase phase, the chromosomes of any one pair of Homologous chromosomes move to any pole without being separated from each other. This condition is called non-dissection.