I applied online. The process took 1 day. I interviewed at VVDN Technologies (Eranakulam) in Oct 2016
Interview
As a fresher in Embedded technology, with a high expectation and enthusiasm I to Kerala only to attend this interview. I was invited as a response to my mail. The interview was finished today (12/10/2016) at 10.00 am. It had 30 purely technical qsns from digital electronics. I couldn't clear the exam. Most of the candidates were with recommendations. But even they too couldn't get through. It have overheard from the candidates that, the interview was just a formality and the posts were fixed for some candidates who are the batch-mates/ colleagues of other employees. Three of them were selected.
5. What is the frequency of the MSB of 3 bit counter of frequency f hz
6.binary to hexa decimal conversion 01011010
7.. 625 in decimal to binary
8.two switches are at staircase connection for a bulb one switch in the first floor other in second floor...the operation of the bulb is based on which gate
9. A 3 bit counter with last gate connected to not and what is the range of counting Ans is 0000to 0101
10. Clipper circuit with zener parallel to apply and to obtain the output voltage waveform
12. A resistor circuit with all resistances are 1ohm...and current is 1amp. To find the voltage across a and b
13. Zener based circuit and to obtain output waveform with input sine wave given
14.which diode is on
15. Demux with logic 0utput... The logic 0outputs given to or gate and all inputs are inverted and obtain output function
16.a mux with 4inputs and 3inputs are high and one is inverted and output of mux given to logic low chip select.... The address range that can be accessed by the peripherals are
17.counter with each flip flop has Some ns delay and some ns setup delay.. What is the frequency of operation
18. Shift registers output after 2clocks serial in parallel out
19. What is the max and min values of 2s complement n bit number
20. Steady state response question
21. Frequency division one more question in counters
I applied through an employee referral. I interviewed at VVDN Technologies (New Delhi) in Aug 2021
Interview
Two online test followed by 2 technical interviews. Process ended with a HR round.
Questions were moderate to difficult from digital and verilog. Second Technical round was a bit tough than the first.
I applied through other source. I interviewed at VVDN Technologies
Interview
Medium difficulty. A test (consists of Digital, English, Aptitude and Logical Reasoning Questions) followed by two technical rounds, followed by HR round. Technical rounds will be focused on real world application and the projects that they are working on. Understanding of protocols as a fresher is a big plus.
Interview questions [1]
Question 1
General Digital Electronics and protocol based questions like AXI, UART, etc
