Register

PGEE 2018

708 views
0 votes
0 votes
Consider relation R(A,B,C,D) with FD A->B C->D is decomposed in to R1(AB) and R2(CD)

then above decomposition is '

A) lossless but not dependency preserving

B) Dependence preserving and lossless

C) Dependency preserving but not lossless

D) Neither Dependency preserving nor lossless
User Avatar

1 Answer

Voting & Accepting an answer helps improve the community
← PreviousNext →
← Previous in categoryNext in category →

Related questions

0 votes
0 votes
1 answer
1
Tesla! asked Apr 21, 2018
549 views
PGEE 2018
Which of there is free from deadlock and starvation both? 1) Both 2PL and time stamp ordering 2) Only time stamp 3) only 2PL 4) None
Which of there is free from deadlock and starvation both?1) Both 2PL and time stamp ordering2) Only time stamp 3) only 2PL4) None
User Avatar
3 votes
3 votes
0 answers
2
Tesla! asked Apr 22, 2018
707 views
PGEE 2018
In a min-heap with $n$ elements with the smallest element at the root, the $7^{th}$ smallest element can be found in time $\Theta (n \log n)$ $\Theta (n)$ $\Theta(\log n)$ $\Theta(1)$
In a min-heap with $n$ elements with the smallest element at the root, the $7^{th}$ smallest element can be found in time$\Theta (n \log n)$$\Theta (n)$$\Theta(\log n)$$\...
User Avatar
2 votes
2 votes
0 answers
3
Tesla! asked Apr 22, 2018
778 views
PGEE 2018
For which one of the following reasons does internet protocol(IP) use the time-to-live(TTL) field in IP datagram header? Ensure packets reach destination within that time Discard packets that reach later than that time Prevent packets from looping indefinitely Limit the time for which a packet gets queued in intermediate routers
For which one of the following reasons does internet protocol(IP) use the time-to-live(TTL) field in IP datagram header?Ensure packets reach destination within that timeD...
User Avatar
Link Copied!