Yahoo Interview Questions and answers

1. Explain about error handling in php ?

Answer : Error handling is the process of catching errors...

2. How to find out, how a user visited a particular page ?

Answer : We add a counter in that page.....

3. What does the top command display ?

Answer : Top displays the top processes on the system and periodically...

4. What is the error message that you would get if you try to assign "Null" to an integer variable ?

Answer : Error message: cannot convert null to int...

5. What is the difference between shell script and perl ?

Answer : Shell script is platform(OS) only for Unix flavour...

6. Is running apache as a root is a security risk ?

Answer : Yes, running the apache as root...

7. What is the default port for MySQL Server ?

Answer : If you want to check the port...

8. What is mutation testing ?

Answer : mutation comes under white box testing...

9. Describe your classroom's physical appearance ?

Answer : Upon entering my classroom you will find...

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