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8
answers
1
GATE CSE 2020 | Question: 42
The number of permutations of the characters in LILAC so that no character appears in its original position, if the two L’s are indistinguishable, is ______.
commented
in
Combinatory
Oct 5, 2020
16.4k
views
gatecse-2020
numerical-answers
combinatory
2-marks
3
answers
2
GATE CSE 1988 | Question: 10iib
Given below is solution for the critical section problem of two processes $P_0$ and $P_1$ ... until false Determine of the above solution is correct. If it is incorrect, demonstrate with an example how it violates the conditions.
commented
in
Operating System
Aug 30, 2020
4.1k
views
gate1988
descriptive
operating-system
process-synchronization
2
answers
3
MadeEasy Subject Test: Algorithms - Recurrence
which of the following cannot be solved using masters theorem? a) T(n) = 2T(n/2) + n/logn b) T(n) = 2T(n/2) + logn c)T(n)=T(n/2)+logn d) non of these
commented
in
Algorithms
Jun 28, 2020
2.1k
views
made-easy-test-series
recurrence-relation
master-theorem
1
answer
4
Made Easy Test Series:Time Complexity
Consider the following program: int Bar(int n){ if(n<2) return; } else{ int sum=0; int i,j; for(i=1;i<=4;i++) Bar(n/2); for(i=1;i<=n;i++){ for(j=1;j<=i;j++){ sum=sum+1; } } } Now consider the following ... $Bar\left ( n \right )$ is $O \left ( n^{3}logn^{2} \right )$ How many statements are correct________________
commented
in
Algorithms
Jun 28, 2020
2.4k
views
made-easy-test-series
algorithms
time-complexity
7
answers
5
GATE IT 2005 | Question: 69
In an inventory management system implemented at a trading corporation, there are several tables designed to hold all the information. Amongst these, the following two tables hold information on which items are supplied by which suppliers, and which warehouse ... who do not supply any item supply exactly one item supply one or more items supply two or more items
answered
in
Databases
Apr 20, 2020
14.2k
views
gateit-2005
databases
sql
normal
8
answers
6
GATE CSE 2009 | Question: 55
Consider the following relational schema: $\text{Suppliers}(\underline{\text{sid:integer}},\text{ sname:string, city:string, street:string})$ $\text{Parts}(\underline{\text{pid:integer}}, \text{ pname:string, color:string})$ ... of all suppliers who have supplied only non-blue part. Find the names of all suppliers who have not supplied only blue parts.
answered
in
Databases
Apr 19, 2020
38.4k
views
gatecse-2009
databases
sql
normal
2
answers
7
GATE CSE 1998 | Question: 1.35
There are five records in a database. ... and it contains the values $1, 3, 2, 5$ and $4$. Which one of the fields is the index built from? Age Name Occupation Category
answered
in
Databases
Apr 12, 2020
9.8k
views
gate1998
databases
indexing
normal
1
answer
8
Indexing
Primary index vs Secondary Index Primary index is done on the primary key of the database.Secondary indexing is done on the candidate key..and clusterd index on non key field. Which indexing required dense and sparse indexing and why ? WHy cant secondary indices be done based on sparse indexing as it is order on candidate key and which also orders the file?
commented
in
Databases
Apr 8, 2020
8.1k
views
5
answers
9
GATE CSE 2019 | Question: 11
Consider the following two statements about database transaction schedules: Strict two-phase locking protocol generates conflict serializable schedules that are also recoverable. Timestamp-ordering concurrency control protocol with Thomas' Write Rule can generate view serializable ... the above statements is/are TRUE? I only II only Both I and II Neither I nor II
answer edited
in
Databases
Apr 6, 2020
17.4k
views
gatecse-2019
databases
transaction-and-concurrency
1-mark
6
answers
10
GATE CSE 1998 | Question: 2.19
Which of the following query transformations (i.e., replacing the l.h.s. expression by the r.h.s expression) is incorrect? R1 and R2 are relations, C1 and C2 are selection conditions and A1 and A2 are attributes of R1. ... $\pi_{A_1} \left(\sigma_{C_1}\left(R_1\right)\right) \to \sigma_{C_1} \left(\pi_{A_1}\left(R_1\right)\right)$
answered
in
Databases
Mar 11, 2020
17.2k
views
gate1998
databases
relational-calculus
normal
2
answers
11
Ace Test Series: Databases - Database Normalization
commented
in
Databases
Mar 11, 2020
1.2k
views
bcnf-decomposition
ace-test-series
databases
database-normalization
2
answers
12
Ace Test Series: DBMS - Normalization
answered
in
Databases
Mar 11, 2020
573
views
ace-test-series
databases
database-normalization
6
answers
13
GATE CSE 2008 | Question: 82
Consider the following $\text{ER}$ diagram The minimum number of tables needed to represent $M$, $N$, $P$, $R1$, $R2$ is $2$ $3$ $4$ $5$
answered
in
Databases
Feb 16, 2020
26.3k
views
gatecse-2008
databases
er-diagram
normal
4
answers
14
Find he minimum number of scalar multiplications in matrix multiplication
Four matrices M1, M2, M3, and M4 have dimensions p x q, q x r, r x s, and s x t respectively can be multiplied in several ways with different number of total scalar multiplications. For example, when multiplied as ((M1 x M2 ... 100, r = 20, s = 5, and t = 80, then what is the minimum number of scalar multiplications needed ?
commented
in
Algorithms
Feb 3, 2020
22.0k
views
algorithms
matrix-chain-ordering
1
answer
15
Let f(n) = O(n), g(n) = θ(n), and h(n) = Ω(n). Then f(n). h(n) + g(n) is_______________
let us consider f(n) is log(n) and g(n) = n and h(n) = n^2. since logn<= n n2 >= n for all values so given above equality holds true but when we substitute n+((logn)(n2) = O(n2) but ans is Ω(n) can somebody wxplain this plz
commented
in
Algorithms
Feb 2, 2020
2.8k
views
algorithms
asymptotic-notation
0
answers
16
made easy booklet
Find time complexity? a) T(n) = T(n/2) + pow(2,n) b) T(n) = T(pow(n,1/2)) + n c) T(n) = 16T(n/4) + n! d) T(n) = pow(2,1/2)*T(n/2) + log n can we apply master theorem on the above problem?
commented
in
Algorithms
Jan 30, 2020
3.2k
views
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