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1 answer
1
Ace Page#39, Q# 20
What is the answer of 2nd Question ??
What is the answer of 2nd Question ??
2 answers
2
B+ Tree insertion
I think it would be 7..please check
I think it would be 7..please check
1 answer
5
database-indexing
How many different secondary indices are possible for a table with n attributes(Not necessarily at the same time)?
How many different secondary indices are possible for a table with n attributes(Not necessarily at the same time)?
2 answers
6
data base system
Find highest normal form? R(ABCDE) FD={AB-->C, C-->A, C-->D, BD-->E} here I have doubt that BD-->E is partial dependency or not? BD-->E is 1nf or 2nf or 3nf?
Find highest normal form?R(ABCDE)FD={AB >C, C >A, C >D, BD >E}here I have doubt that BD >E is partial dependency or not?BD >E is 1nf or 2nf or 3nf?
1 answer
10
matrix
0 answers
13
Urgent- Memory management
Can someone please tell me the resource to study memory management. I am finding difficulty to solve the numerical on multilevel paging and segmentation.
Can someone please tell me the resource to study memory management. I am finding difficulty to solve the numerical on multilevel paging and segmentation.
2 answers
14
memory management
True or False S1: In Fixed partition we have both internal and external fragmentation S2: In variable partition, we have only external fragmentation
True or FalseS1: In Fixed partition we have both internal and external fragmentationS2: In variable partition, we have only external fragmentation
7 answers
15
ISRO2016-47
A system has 3 processes sharing 4 resources. If each process needs a maximum of 2 units, then Deadlock can never occur Deadlock may occur Deadlock has to occur None of these
A system has 3 processes sharing 4 resources. If each process needs a maximum of 2 units, thenDeadlock can never occurDeadlock may occurDeadlock has to occurNone of these...
4 answers
16
Can anyone explain the below question in a detailed way?
A Binary semaphore variable mutex is initialized to '1' and the various binary semaphore operations like 9P(), 14V(), 6P(), 8V(), 3P(), 2V() are performed, then what is the present(final) value of the binary semaphore mutex?
A Binary semaphore variable mutex is initialized to '1' and the various binary semaphore operations like 9P(), 14V(), 6P(), 8V(), 3P(), 2V() are performed, then what is t...
2 answers
17
UGC NET CSE | June 2014 | Part 2 | Question: 32
Match the following $:$ ... $\text{a-iii; b-i; c-iv; d-i}$ $\text{a-ii; b-iii; c-iv; d-i}$
Match the following $:$$\begin{array}{clcl} & \textbf{List – I} && \textbf{List – II} \\ \text{a}. & \text{Multilevel feedback queue} & \text{i.} & \text{Time-slicin...
3 answers
18
Fork
What is the output and how many child(what is the code of all other child .what they copied from parent give tree diagram) t1=0;t2=0; Fork(); Printf("hi"); t1=Fork(); Printf("hi"); t2=fork(); printf("hi); fork(); printf("hi);
What is the output and how many child(what is the code of all other child .what they copied from parent give tree diagram)t1=0;t2=0;Fork();Printf("hi");t1=Fork();Printf("...
2 answers
19
ISRO2014-72
The rank of the matrix $A=\begin{pmatrix} 1 & 2 & 1 & -1\\ 9& 5& 2& 2\\ 7& 1& 0 & 4 \end{pmatrix}$ is ______ . $0$ $1$ $2$ $3$
The rank of the matrix $A=\begin{pmatrix} 1 & 2 & 1 & -1\\ 9& 5& 2& 2\\ 7& 1& 0 & 4 \end{pmatrix}$ is ______ .$0$$1$$2$$3$
1 answer
20
Linear Dependent
I am getting independent but answer is given as dependent. Can some one tell me what worng with my approach
I am getting independent but answer is given as dependent. Can some one tell me what worng with my approach
1 answer
21
mathematics
can someone please provide me the link for math(video lectures)? from where i can learn math from the beginning. Thanks
can someone please provide me the link for math(video lectures)? from where i can learn math from the beginning. Thanks
4 answers
22
GATE CSE 2012 | Question: 51
Consider the following relations $A, B$ and $C:$ ... contain? SELECT A.Id FROM A WHERE A.Age > ALL (SELECT B.Age FROM B WHERE B.Name = Arun') $4$ $3$ $0$ $1$
Consider the following relations $A, B$ and $C:$ $$\overset{\textbf{A}}{\begin{array}{|c|c|c|}\hline\\\textbf{Id}& \textbf{Name}& \textbf{Age} \\\hline12& \text{A...
1 answer
24
Online test
3 answers
25
how many tables will get generated for following E-R
how many tables will get generated for following E-R I believe an answer is 3. 2 tables for 2 different multivalued attributes and one for entity "Dept.".
how many tables will get generated for following E-RI believe an answer is 3.2 tables for 2 different multivalued attributes and one for entity "Dept.".
3 answers
26
er model,databases
IF A RELATION HAS ______________ CARDINALITY, THEN NO MINIMIZATION CAN TAKE PLACE. a) 1:n b)m:m c)n:1 d) none
IF A RELATION HAS ______________ CARDINALITY, THEN NO MINIMIZATION CAN TAKE PLACE.a) 1:nb)m:mc)n:1d) none
1 answer
27
Doubt
Can someone please explain this question? I am not able to understand it
Can someone please explain this question? I am not able to understand it
2 answers
28
Doubt
R(A , b, c) with n tuples, S(A , D, E). How many max tuples in R natural join S? {A is key for both} $\min (m,n)$ $\max(m,n)$ $m*n$ $m+n$
R(A , b, c) with n tuples, S(A , D, E). How many max tuples in R natural join S? {A is key for both}$\min (m,n)$$\max(m,n)$$m*n$$m+n$