Related Questions

What MySQL property is used to create a surrogate key in MySQL?
A UNIQUE
B SEQUENCE
C AUTO_INCREMENT
D None of the mentioned
An investor invests 30%, 40%, 20% and 10% of his total investable amount in four different shares of stock giving returns of 15%, 20%, 12% and 10% respectively. What is the average rate of his returns?
A 13.25%
B 12.25%
C 14.25%
D None of the above
Arif starting from x goes to Y. t the same time Boby starts from Y and goes towards X. Once Arif reaches Y, he changes his direction and returns to X. Once Boby reaches X, he changes his direction and returns to Y. Throughout the journey, Arif travels at 54 kmph and Boby travels at 72 kmph. By the time they meet for the second tike, boby covers 36 km more than Arif. Find the distance (in km) between X and Y.
A 72
B 84
C 96
D None
The e.m.f. generated by a shunt wound D.C. generator is E. Now while pole flux remains constant, if the speed of the generator is doubled, the e.m.f. generated will be
A $$\frac{{\text{E}}}{2}$$
B 2E
C Slightly less than E
D E
What is the method used to stop an execution of a method?
A clearInterval()
B clearTimeout()
C both clearInterval() and clearTimeout()
D clearmethod()
Which one of the following methods can be used to diagnose and display information about a MySQL connection error?
A connect_errno()
B connect_error()
C mysqli_connect_errno()
D mysqli_connect_error()
Which function sets the file filename’s last-modified and last-accessed times?
A sets()
B set()
C touch()
D touched()
In HTML Audio/Video DOM, __________ returns a MediaError object representing the error state of the audio/video.
A ended
B seeking
C error
D mediaGroup
Which function returns an array consisting of associative key/value pairs?
A count()
B array_count()
C array_count_values()
D count_values()
Which one of the following function returns the port number of a specified service?
A getportname()
B getservername()
C getserverbyname()
D getservbyname()

Next steps