Many of the questions regarding bout employment and application in Big4 can be boiled down to the basic economic concept: demand and supply.
How long it usually takes to reply your application?
Depends on their quantity demand of labourers, and depends on the quantity supply of labourers to them.
What's the criteria of being employed by Big4? CGPA 3.66 can ah?
Depends on the demand and supply. If they don't need any demand, why must they hire you? If there are plenty of people who are higher than you, why must they hire you?
Is CGPA 2.5 considered too low to join Big4?
Depends on their demand and supply. If they need any Tom, d*** & Harry who are willing to work, no problem. Timing must be right to see whether their demand meets your supply.
Are the interviewer's questions hard? How should I answer them?
It boils down to demand and supply. If they need people, no matter how hard the questions are, and no matter how lousy you answer is, so long your supply meets their demand, no problem. That's why HR doesn't really tell you how you performed during your interview or whatever just-for-show test.
I think everything boils down to "demand and supply". Don't bother what those HR said. They crap out of a reason just like how we write our analytical review.
Well said. So, stop asking and start applying. Asking won't land u a job, but applying does.