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Recent questions tagged ugcnetcse-july2018-paper2
0
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5
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61
UGC NET CSE | July 2018 | Part 2 | Question: 61
In RDBMS, which type of Join returns all rows that satisfy the join condition? Inner Join Outer Join Semi Join Anti Join
Pooja Khatri
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in
Databases
Jul 13, 2018
by
Pooja Khatri
2.4k
views
ugcnetcse-july2018-paper2
databases
rdbms
joins
0
votes
2
answers
62
UGC NET CSE | July 2018 | Part 2 | Question: 62
Consider a relation book (title, price) which contains the titles and prices of different books. Assuming that no two books have the same price, what does the following SQL query? Select title from book as B where (select ... Title of the sixth most expensive books Titles of the seven most expensive books Title of the seventh most expensive books
Pooja Khatri
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in
Databases
Jul 13, 2018
by
Pooja Khatri
1.9k
views
ugcnetcse-july2018-paper2
databases
rdbms
sql
0
votes
5
answers
63
UGC NET CSE | July 2018 | Part 2 | Question: 63
In a Hierarchical database, a hashing function is used to locate the ____ Collision Root Foreign Key Records
Pooja Khatri
asked
in
Databases
Jul 13, 2018
by
Pooja Khatri
4.7k
views
ugcnetcse-july2018-paper2
databases
hierarchical-database
0
votes
1
answer
64
UGC NET CSE | July 2018 | Part 2 | Question: 65
Consider the following schedules involving two transactions. $S_1 : r_1(X) ; r_1(Y); r_2(X); r_2(Y); w_2(Y); w_1(X)$ $S_2 : r_1(X) ; r_2(X); r_2(Y); w_2(Y); r_1(Y); w_1(X)$ Which one of the following statements is correct ... not conflict serializable $S_1$ is not conflict serializable and $S_2$ is conflict serializable
Pooja Khatri
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in
Databases
Jul 13, 2018
by
Pooja Khatri
1.5k
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ugcnetcse-july2018-paper2
databases
transaction-and-concurrency
conflict-serializable
easy
0
votes
1
answer
65
UGC NET CSE | July 2018 | Part 2 | Question: 66
For a database relation $R(a, b, c, d)$ where the domains of a, b, c and d include only atomic values and only the following functional dependencies and those that can be inferred from them hold: $a \rightarrow c$ ... in ____ First normal form but not in second normal form Second normal form but not in third normal form Third normal form BCNF
Pooja Khatri
asked
in
Databases
Jul 13, 2018
by
Pooja Khatri
711
views
ugcnetcse-july2018-paper2
databases
rdbms
2
votes
4
answers
66
UGC NET CSE | July 2018 | Part 2 | Question: 67
A many-to-one relationship exists between entity sets $r_1$ and $r_2$. How will it be represented using functional dependencies if $Pk(r)$ denotes the primary key attribute of relation $r$? $Pk(r_1) \rightarrow Pk(r_2)$ ... $Pk(r_2) \rightarrow Pk(r_1) \text{ or } Pk(r_1) \rightarrow Pk(r_2)$
Pooja Khatri
asked
in
Databases
Jul 13, 2018
by
Pooja Khatri
1.2k
views
ugcnetcse-july2018-paper2
databases
rdbms
1
vote
4
answers
67
UGC NET CSE | July 2018 | Part 2 | Question: 68
Database systems that store each relation in a separate operating system file may use the operating system's authorization scheme, instead of defining a special scheme themselves. In this case, which of the following is false? ... Operations on the database are speeded up as the authorization procedure is carried out at the operating system level
Pooja Khatri
asked
in
Databases
Jul 13, 2018
by
Pooja Khatri
2.2k
views
ugcnetcse-july2018-paper2
databases
1
vote
1
answer
68
UGC NET CSE | July 2018 | Part 2 | Question: 69
Let $R_1(a, b, c)$ and $R_2(x, y, z)$ be two relations in which a is the foreign key of $R_1$ that refers to the primary key of $R_2$. Consider the following four options. Insert into $R_1$ ... b will cause violation Operations b and c will cause violation Operations c and d will cause violation Operations d and a will cause violation
Pooja Khatri
asked
in
Databases
Jul 13, 2018
by
Pooja Khatri
1.2k
views
ugcnetcse-july2018-paper2
databases
relation
1
vote
1
answer
69
UGC NET CSE | July 2018 | Part 2 | Question: 70
Consider a hash table of sze seven, with starting index zero, and a hash function (7x+3) mod 4. Assuming that the hash table is initially empty, which of the following is the contents of the table when the sequence 1, 3, 8, 10 is inserted into the table using closed ... 3, 8, 10, ___, ___, ___ 1, ___, 3, ___, 8, ___, 10 3, 10, ___, ____, 8, ___, ___
Pooja Khatri
asked
in
DS
Jul 13, 2018
by
Pooja Khatri
3.1k
views
ugcnetcse-july2018-paper2
data-structures
hashing
0
votes
2
answers
70
UGC NET CSE | July 2018 | Part 2 | Question: 71
In artificial Intelligence (AI), an environment is uncertain if it is ___ Not fully observable and not deterministic Not fully observable or not deterministic Fully observable but not deterministic Not fully observable but deterministic
Pooja Khatri
asked
in
Artificial Intelligence
Jul 13, 2018
by
Pooja Khatri
2.9k
views
ugcnetcse-july2018-paper2
artificial-intelligence
0
votes
1
answer
71
UGC NET CSE | July 2018 | Part 2 | Question: 72
In artificial Intelligence (AI), a simple reflex agent selects actions on the basis of ___ current percept, completely ignoring rest of the percept history rest of the percept history, completely ignoring the current percept both current percept and complete percept history both current percept and just previous percept
Pooja Khatri
asked
in
Artificial Intelligence
Jul 13, 2018
by
Pooja Khatri
2.1k
views
ugcnetcse-july2018-paper2
artificial-intelligence
0
votes
2
answers
72
UGC NET CSE | July 2018 | Part 2 | Question: 73
In heuristic search algorithms in Artificial Intelligence (AI), if a collection of admissible heuristics $h_1 \dots h_m$ is available for a problem and none of them dominates any of the others, which should we choose? $h(n)=max\{h_1(n), \dots , h_m(n)\}$ ... $h(n)=avg\{h_1(n), \dots , h_m(n)\}$ $h(n)=sum\{h_1(n), \dots , h_m(n)\}$
Pooja Khatri
asked
in
Artificial Intelligence
Jul 13, 2018
by
Pooja Khatri
2.0k
views
ugcnetcse-july2018-paper2
artificial-intelligence
0
votes
4
answers
73
UGC NET CSE | July 2018 | Part 2 | Question: 74
Consider following sentences regarding $A^*$, an informed search strategy in Artificial Intelligence (AI). $A^*$ expands all nodes with $f(n)<C^*$ $A^*$ expands no nodes with $f(n) \geq C^*$ Pruning is integral to $A^*$ ... Both statements a and statement c are true Both statements b and statement c are true All the statements a, b and c are true
Pooja Khatri
asked
in
Artificial Intelligence
Jul 13, 2018
by
Pooja Khatri
2.6k
views
ugcnetcse-july2018-paper2
artificial-intelligence
2
votes
3
answers
74
UGC NET CSE | July 2018 | Part 2 | Question: 75
Consider a vocabulary with only four propositions A, B, C and D. How many models are there for the following sentence? $B \vee C$ 10 12 15 16
Pooja Khatri
asked
in
Quantitative Aptitude
Jul 13, 2018
by
Pooja Khatri
2.3k
views
ugcnetcse-july2018-paper2
quantitative-aptitude
0
votes
3
answers
75
UGC NET CSE | July 2018 | Part 2 | Question: 76
Consider the following statements: False $\models$ True If $\alpha \models (\beta \wedge \gamma \text{ then } \alpha \models \gamma$ Which of the following is correct with respect to above statements? Both statement a and statement b ... and statement b is false Statement a is false and statement b is true Both statement a and statement b are true
Pooja Khatri
asked
in
Discrete Mathematics
Jul 13, 2018
by
Pooja Khatri
2.5k
views
ugcnetcse-july2018-paper2
discrete-mathematics
propositional-logic
2
votes
3
answers
76
UGC NET CSE | July 2018 | Part 2 | Question: 77
Consider the following English sentence: "Agra and Gwalior are both in India". A student has written a logical sentence for the above English sentence in First-Order Logic using predicate IN(x, y), which means x is ... the meaning of the English sentence It is syntactically invalid and does not express the meaning of the English sentence
Pooja Khatri
asked
in
Mathematical Logic
Jul 13, 2018
by
Pooja Khatri
1.7k
views
ugcnetcse-july2018-paper2
discrete-mathematics
first-order-logic
0
votes
2
answers
77
UGC NET CSE | July 2018 | Part 2 | Question: 78
Consider the following two sentences: The planning graph data structure can be used to give a better heuristic for a planning problem Dropping negative effects from every action schema in a planning problem results in a relaxed problem Which of the ... b are true Sentence a is true but sentence b is false Sentence a is false but sentence b is true
Pooja Khatri
asked
in
Artificial Intelligence
Jul 13, 2018
by
Pooja Khatri
1.6k
views
ugcnetcse-july2018-paper2
planning
0
votes
3
answers
78
UGC NET CSE | July 2018 | Part 2 | Question: 79
A knowledge base contains just one sentence, $\exists x \text{ AsHighAs } (x, \text{Everest})$. Consider the following two sentences obtained after applying existential instantiation. AsHighAs (Everest, Everest) AsHighAs (Kilimanjaro, ... unsound conclusions Sentence a is sound but sentence b is unsound Sentence a is unsound but sentence b is sound
Pooja Khatri
asked
in
Verbal Aptitude
Jul 13, 2018
by
Pooja Khatri
2.5k
views
ugcnetcse-july2018-paper2
verbal-aptitude
0
votes
3
answers
79
UGC NET CSE | July 2018 | Part 2 | Question: 80
Consider the set of all possible five-card poker hands dealt fairly from a standard deck of fifty-two cards. How many atomic events are there in the joint probability distribution? 2, 598, 960 3, 468, 960 3, 958, 590 2, 645, 590
Pooja Khatri
asked
in
Probability
Jul 13, 2018
by
Pooja Khatri
3.6k
views
ugcnetcse-july2018-paper2
probability
0
votes
1
answer
80
UGC NET CSE | July 2018 | Part 2 | Question: 81
E is the number of edges in the graph and f is maximum flow in the graph. When the capacities are integers, the runtime of Ford-Fulberson algorithm is bounded by $O \: (E*f)$ $O \: (E^2*f)$ $O \: (E*f^2)$ $O \: (E^2*f^2)$
Pooja Khatri
asked
in
Graph Theory
Jul 13, 2018
by
Pooja Khatri
1.2k
views
ugcnetcse-july2018-paper2
graph-theory
0
votes
1
answer
81
UGC NET CSE | July 2018 | Part 2 | Question: 82
Which of the following statements is false about convex minimization problem? If a local minimum exists, then it is a global minimum The set of all global minima is convex set The set of all global minima is concave set For each strictly convex function, if the function has a minimum, then the minimum is unique
Pooja Khatri
asked
in
Others
Jul 13, 2018
by
Pooja Khatri
1.5k
views
ugcnetcse-july2018-paper2
convex-optimization
1
vote
2
answers
82
UGC NET CSE | July 2018 | Part 2 | Question: 83
The following LLP $\text{Maximize } z=100x_1 +2x_2+5x_3$ Subject to $14x_1+x_2-6x_33+3x_4=7$ $32x_1+x_2-12x_3 \leq 10$ $3x_1-x_2-x_3 \leq 0$ $x_1, x_2, x_3, x_4 \geq 0$ has Solution : $x_1=100, \: x_2=0, \: x_3=0$ Unbounded solution No solution Solution : $x_1=50, \: x_2=70, \: x_3=60$
Pooja Khatri
asked
in
Others
Jul 13, 2018
by
Pooja Khatri
1.9k
views
ugcnetcse-july2018-paper2
llp
linear-programming
0
votes
2
answers
83
UGC NET CSE | July 2018 | Part 2 | Question: 84
Digital data received from a sensor can fill up 0 to 32 buffers. Let the sample space be $S=\{ 0, 1, 2, \dots , 32\}$ where the sample $j$ denote that $j$ of the buffers are full and $p(i) = \frac{1}{562}(33-i)$. Let A denote the event that the even number of buffers are full. Then $P(A)$ is 0.515 0.785 0.758 0.485
Pooja Khatri
asked
in
Probability
Jul 13, 2018
by
Pooja Khatri
2.9k
views
ugcnetcse-july2018-paper2
probability
0
votes
2
answers
84
UGC NET CSE | July 2018 | Part 2 | Question: 85
The equivalence of $\neg \: \exists \: x \: Q \: (x)$ is $\exists \: x \: \neg \: Q \: (x)$ $\forall \: x \: \neg \: Q \: (x)$ $\neg \: \exists \: x \: \neg \: Q \: (x)$ $\forall \: x \: Q \: (x)$
Pooja Khatri
asked
in
Discrete Mathematics
Jul 13, 2018
by
Pooja Khatri
3.5k
views
ugcnetcse-july2018-paper2
discrete-mathematics
quantifiers
0
votes
4
answers
85
UGC NET CSE | July 2018 | Part 2 | Question: 86
If $A_i = \{-i, \dots , -2, -1, 0, 1, 2, \dots , i \}$ then $\cup_{i=1}^\infty A_i$ is Z Q R C
Pooja Khatri
asked
in
Discrete Mathematics
Jul 13, 2018
by
Pooja Khatri
1.5k
views
ugcnetcse-july2018-paper2
discrete-mathematics
0
votes
1
answer
86
UGC NET CSE | July 2018 | Part 2 | Question: 87
Match the following in $\textbf{List-I}$ and $\textbf{List-II}$, for a function $f$ ... $\text{(a)-(ii), (b)-(i), (c)-(iii)}$ $\text{(a)-(ii), (b)-(iii), (c)-(i)}$
Pooja Khatri
asked
in
Mathematical Logic
Jul 13, 2018
by
Pooja Khatri
1.2k
views
ugcnetcse-july2018-paper2
discrete-mathematics
functions
0
votes
2
answers
87
UGC NET CSE | July 2018 | Part 2 | Question: 88
Which of the relations on {0, 1, 2, 3} is an equivalence relation? { (0, 0) (0, 2) (2, 0) (2, 2) (2, 3) (3, 2) (3, 3) } { (0, 0) (1, 2) (2, 2) (3, 3) } { (0, 0) (0, 1) (0, 2) (1, 0) (1, 1) (1, 2) (2, 0) } { (0, 0) (0, 2) (2, 3) (1, 1) (2, 2)
Pooja Khatri
asked
in
Discrete Mathematics
Jul 13, 2018
by
Pooja Khatri
3.1k
views
ugcnetcse-july2018-paper2
discrete-mathematics
relations
0
votes
1
answer
88
UGC NET CSE | July 2018 | Part 2 | Question: 89
Which of the following is an equivalence relation on the set of all functions from Z to Z? $\{ f, \:g) \mid f(x) - g(x) =1 \: \forall \: x \in \: Z \}$ $\{ f, \:g) \mid f(0) = g(0) \text{ or } f(1) = g(1) \}$ $\{ f, \:g) \mid f(0) = g(1) \text{ and } f(1) = g(0) \}$ $\{ f, \:g) \mid f(x) - g(x) =k \text{ for some } k \in Z \}$
Pooja Khatri
asked
in
Discrete Mathematics
Jul 13, 2018
by
Pooja Khatri
856
views
ugcnetcse-july2018-paper2
discrete-mathematics
equivalence-class
1
vote
2
answers
89
UGC NET CSE | July 2018 | Part 2 | Question: 90
Which of the following statements is true? $(Z, \leq)$ is not totally ordered The set inclusion relation $\subseteq$ is a partial ordering on the power set of a set S $(Z, \neq)$ is a poset The directed graph is not a partial order
Pooja Khatri
asked
in
Discrete Mathematics
Jul 13, 2018
by
Pooja Khatri
3.7k
views
ugcnetcse-july2018-paper2
discrete-mathematics
partial-order
0
votes
3
answers
90
UGC NET CSE | July 2018 | Part 2 | Question: 91
CMOS is a computer chip on the motherboard, which is RAM ROM EPROM Auxillary storage
Pooja Khatri
asked
in
CO and Architecture
Jul 13, 2018
by
Pooja Khatri
1.1k
views
ugcnetcse-july2018-paper2
co-and-architecture
cmos
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