Aptitude Test : 10 Minutes
Quantitative : 40 Minutes
Reasoning / Analytical : 0 Minutes
Verbal English : 0 Minutes
Technical : 90 Minutes
Details of types of questions asked in each of the sections:
total 40 questions in that aptitude - 7-8 questions and remaining os ,networking ,c basics questions
>>60 min written test >>40 min technical interview >>50 min technical+aptitude(maths) >>20 min HR

first Technical Interview-cdma,gsm technology>>osi model>>explain all layer's functionalities in osi model
>>tcp/ip protocol>>deadlock>>semaphores kernel implementation>>problems on synchronizing(using
semaphores,mesg q's)>>simple questions on linked list>>questions on c lang,problem using bitwise operators
next--about project>>what is operating system,kernel>>explain operating system architecture>>process address
space,proc,uarea,kernel stack>>networks,datalink layer, udp,why u need it & its app>> general problem
solving(how many zero's 100!)

tell about your self>>why do you like qualcomm>>what preparation hav u done for this interview(mentaly)>>what
do you like in my presentation

be good at basics ,do good project and take it seriously,Beside ur os-galvin and network-forzon/tananbum try to
read os-Design of operating systems(batch) ,networks - Internetworking with TCP/IP(dougles E.comer)-vol 1 and
other vol for programming ,this very good book to get the internal concepts.

interview was not so difficult all questions concentrate only on basic concepts,not much on algorthms and problem
solving
hr was rude..