Question 1 |
If A is a skew symmetric matrix then A^{t} is
Diagonal matrix | |
A | |
0 | |
-A |
Question 1 Explanation:
Question 2 |
Let A and B be any two arbitrary events, then, which one of the following is TRUE?
P(A \cap B)=P(A) P(B) | |
P(A \cup B)=P(A)+P(B) | |
P(A \mid B)=P(A \cap B) P(B) | |
P(A \cup B) \leq P(A)+P(B) |
Question 2 Explanation:
Question 3 |
Using Newton-Raphson method, a root correct to 3 decimal places of x^{3}-3 x-5=0
2.222 | |
2.275 | |
2.279 | |
None of the above |
Question 3 Explanation:
Question 4 |
What does a data dictionary will identify?
Field name | |
Field format | |
Field types | |
All of the above |
Question 4 Explanation:
Question 5 |
Which of the following concurrency control protocol ensures both conflict and free from deadlock? ,
Time stamp ordering | |
2 Phase locking | |
Both (A) and (B) | |
None of the above |
Question 5 Explanation:
Question 6 |
ACID properties of a transactions are
Atomicity, consistency, isolation, database | |
Atomicity, consistency, isolation, durability | |
Atomicity, consistency, integrity, durability | |
Atomicity, consistency, integrity, database |
Question 6 Explanation:
Question 7 |
\begin{array}{|l|l|l|l|l|} \hline \textbf{Employee} & \textbf{Department} & \textbf{OT allowance} \\ \hline \text{RAMA} & \text{Mechanical} & \text{5000} \\\hline \text{GOPI} & \text{Electrical} & \text{2000} \\\hline \text{SINDHU} & \text{Computer} & \text{4000} \\\hline \text{MAHESH} & \text{Civil} & \text{1500} \\\hline \end{array}
What is the output of the following SQL query?
What is the output of the following SQL query?
select count(*) from
((select Employee, Department from Overtime_allowance)
natural join
(select Department, OT_allowance from Overtime_allowance)
as T);
16 | |
4 | |
8 | |
None of the above |
Question 7 Explanation:
Question 8 |
Which symbol denote derived attributes in ER Model?
Double ellipse | |
Dashed ellipse | |
Squared ellipse | |
Ellipse with attribute name underlined |
Question 8 Explanation:
Question 9 |
The symmetric difference of sets A={1,2,3,4,5,6,7,8} and B={1,3,5,6,7,8,9} is:
{1,3,5,6,7,8} | |
{2,4,9} | |
{2,4} | |
{1,2,3,4,5,6,7,8,9} |
Question 9 Explanation:
Question 10 |
The problem 3-SAT and 2-SAT are
both in P | |
both NP complete | |
NP -complete and in P respectively | |
undecidable and NP complete respectively |
Question 10 Explanation:
There are 10 questions to complete.