Applications Development Engineer Interview Questions | Glassdoor

# Applications Development Engineer Interview Questions

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Applications development engineer interview questions shared by candidates

## Top Interview Questions

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### Engineer - QCS Server Web Applications Development at Qualcomm was asked...

Jan 26, 2011
 How to discover if the given number is Power of 2 ? 4 Answers10=2 100=4 1000=8… Caught the thing .. he didn't like my implementation. don't be nervous!return (( x!=0) && (x & (x -1) == 0)) a number which is power of two will have single 1 in binary representation ex. 16 00010000 x-1 will have pattern 00001111 hence x&(x-1) will always be 0 for power of two numbers. Need to check condition for x!=0 since 0 is not a power of two. Special case to handle.if you can figure this out inside an hour, congratulations this isnt something that should be in an interview to be honest the level of difficulty of the answer that algo came up with is at the level of an upper division course that has a proof of it written in wikipedia i honestly like the brute force solutionShow More ResponsesDivide the number by 2, and repeat, until the result is a not an integer number (in this case is not a power of 2) or the result is 1 (in this case the number was a power of 2).

### Engineer - QCS Server Web Applications Development at Qualcomm was asked...

Jan 26, 2011
 Binary tree , left node has smallest value . Print 5 10 20 25 and then “count of nodes=4”… 2 Answersrecursion ... defined "current=head" in the method so it doesn't changes ofcourse, even if I sent current.next in recursion... don't be nervous!Did not get this question? Could you please eleborate it more?

### Software Engineer - OS X & Linux Applications Development at Qualcomm was asked...

Mar 18, 2013
 In MVC pattern, where to fit communication with a server?1 AnswerObviously not in the view... In asynchronous data models I would be OK with putting it in the model but it really should go in the controller part.

### Engineer - QCS Server Web Applications Development at Qualcomm was asked...

Jan 26, 2011
 How to found first unrepeated character in the string. “abca” return “b” 1 Answer??.. Wrote something . don't remember.. don't be nervous!

### Engineer - QCS Server Web Applications Development at Qualcomm was asked...

Jan 26, 2011
 16 bit number: how to change the bits 0 with 1, 2 with 3 etc.. 1 Answernum && 101010101010101= first byte ; num && 0101010101010101 =sec byte, then first shift right, sec shift left and OR operand ” || “ for both..

### Engineer - QCS Server Web Applications Development at Qualcomm was asked...

Jan 26, 2011
 write class implements Queue with ability to set Priority for an item of the Queue 1 AnswerI was so nervous!... it was a firs question.. don't be nervous!

### Applications Development Engineer at KLA was asked...

Apr 2, 2010
 3-6months abroad? hair numbers in the US? detecting defects in images? and wafers1 Answerwell u can figure that out

### Applications Development Engineer at KLA was asked...

Apr 2, 2010
 why kla, why not etc? describe your project in details-> 10 mins go.. use chalk board when needed.. all that stuff1 Answerdont remeber