I have some topics those are.
1.american the melting point,
2.your role model
4.america the super power
5.election in u.s
8.euro vs doller
9.new york city
and some topics i forget if i get i will send you.
in this you have to speek for one minute. you have a lot from this you have to select your topics.
Apptitude are dead easy
Technical also very easy
Only thing is you have good communication skill.
1.how a thread is created
some are part of OSI layer questions
3)some r easy c questions like a swithc case without break statement etc.
4) semaphore is used for
1) which is fastest sorting algorithm
2)heaps are from of --->priority queue
which data struicture is used to rescue empty space is ---circular queue