Selectra Interview Questions Answers, HR Interview Questions, Selectra Aptitude Test Questions, Selectra Campus Placements Exam Questions

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This page contains the most recently asked technical questions and answers in the Selectra.

All of the questions listed below were collected by students recently placed at Selectra.

Ques:- Who among the following was an illiterate?
A. Aurangzeb
B. Akbar
C. Shahjahan
D. Jahangir
Ques:- What are the major areas of differences in financial accounting and reporting practices observed around the world? In what areas are there substantial similarities?
Ques:- In Linux hard disk partition, hda2, a stands for the ___
A. first hard drive
B. first partition
C. second partition
D. second hard drive
Ques:- The element whose oxidation state in its every compound is same is
A. Oxygen
B. Hydrogen
C. Fluorine
D. Carbon
Ques:- FIFO and LIFO
Ques:- Write a program that singleton objects returns two instances?
Ques:- What is the advantge and disadvantage of mysql_connet() and mysql_pconnect() ? in which condition will you use mysql_connect() and mysql_pconnect().
Recent Answer : Added by Admin On 2020-05-17 11:20:50:

If you’re connecting to a MySQL database in your PHP
application, you’ll find that there are two alternative
connctions – mysql_connect which establishes a new
connection “each time” and mysql_pconnect which uses
persistant connections. Which should you use?
Mysql_connect opens a new connection each time a PHP page is
called up, and closes the connection down again at the end
of the request. It’s ideal for pages that don’t have a heavy
usage – doesn’t need tuning, is straightforward internally.
If you compare MySQL to a shop, this is the connection that
you would use for a small shop where the door is opened each
time a new customer wishes to enter.
Mysql_pconnect will also open a new connection when a PHP
page is called up (at any rate, it will the first time after
a server reboot), but it will NOT close the connection at
the end of the request – instead, it will save it in a
connection pool so that a subsequent request can continue to
use the same connection. It’s intended for pages that do
have a heavy usage – where the resources burn up by opening
and closing connections every time might have a severe
effect on performance. If your local supermarket had a door
that was opened each time someone went in and out, there
would be a lot of needless opening and closing going on –
better to leave it open and let a whole lot of people in and
out at the same time.
But mysql_pconnect does require some tuning of the servers
and you may need to limit the numbers of connections /
children and configure timeouts and how to deal with idle
children. The PHP website includes an overview of this to
get you started.
Finally, it is worth stressing what a persistant connect
does NOT give you. It does NOT give you sessions. It does
NOT give you a per-site-visitor login. It does NOT give you
any extra functioanllity. What it does give you – in the
right circumstances – is an efficiency improvement.

Ques:-  A DVD is example of a (n)
A. Solid-state storage device
B. Output device
C. Optical disk
D. Hard disk
Ques:- In delivery process how can pickup the quantity automatically?with out doing manually?
Ques:- How do clients learn about new WebLogic Server instances?
Ques:- Activate Event is Valid for following
Ques:- He met me with the bird in his hand. It _____ curiously at me.
A. would look
B. should look
C. was looking
D. has been looking
Ques:- What is the difference between RD and RT?
Ques:- If you see a reflection of an analogue clock which shows 2:30, what will be the original time?
Ques:- What is the significance of ?mp run? command ?
Ques:- Can you list some database related functions in cakephp?
Ques:- Can you tell me how to get the public library?
A. Private
B. Mutual
C. Wide
D. Common
Ques:- How is the SUBSTR keyword used in sql?
Ques:- What is your long-range objective?
Ques:- When you quickly press and release the left mouse button twice, you are
A. Secondary clicking
B. Primary clicking
C. Pointing
D. Double clicking

Devendra Bhardwaj With a decade of experience as a Job Hiring Expert, I am a results-driven professional dedicated to elevating recruitment strategies. My expertise lies in navigating the dynamic landscape of talent acquisition, employing innovative approaches to attract, assess, and secure top-tier candidates. I excel in optimizing hiring processes, leveraging cutting-edge technologies, and fostering collaborative relationships with stakeholders. A keen understanding of industry trends allows me to stay ahead, ensuring a competitive edge in securing the best talent for your organization. I am passionate about connecting the right people with the right opportunities and thrive in creating impactful, streamlined recruitment solutions.

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