Qualcomm Intern interview questions

mismatch in differential pair transistors

Section 1: Aptitude – 20 questions(20 minutes) : This was relatively easy. The key was not to lose your cool… Questions were there from probability, Data Interpretation, Profit and Loss, Percentages , Ratio/Proportion, Speed Time and Distance etc. Speed and accuracy were the key. As it was the first section… don’t start the test until all your nerves are settled(I wasted 5 mins in this section trying to settle my nerves). Section 2: Computer Section: 20 question (25 minutes): It cannot get tougher. Question from everything you can think off were asked . Concepts of OOPs were tested . Questions were from Pointers , Arrays , Sorting , Searching in C. Questions were also related to trees, hashing, queues , Stack. One question was based on Master Theorem . One question was on finding the complexity of a a recursive function. Questions were also asked from computer organisation (like daisychaining etc). One question was on Stack Organisation . However , as the round is relative, you just have to better than the rest !! PS: it was the toughest section . And question here were unexpected . Especially the OOPs part !! Section 3: Hardware: 20 questions(30 minutes): It was hard!!(as expected) . Questions were majorly from Digital Electronics(about 10-11)(keep your concepts on counters, sequential logic very strong. 3-4 questions were from microprocessor like. Question like “which register is not present in 8081 but present in 8085 & 8086” and A code was given in assembly language… Analog electronics was extremely difficult (dint even know the part from which the questions were asked )…