Amazon Linux and Hardware Engineer interview questions

Amazon Drive for 2018 batch Pool was conducted in Saraswati college of Engineering, Khargar Position: Hardware and linux Engineer Salary: 20k per month Job period: 6 months Job location: Banglore Round 1: Aptitude test Tolal nos. of questions: 75 TIme for test: 75 mins Test was conucted on tests.mettl.com It has 2 sections. No time limit to sections. Cognitive skills - 30 qstns Technical skills - 45 qstns Cognitive questions were based on :- permutation & combinations Age puzzles Cryptography graph & charts(Estimate profit,sales,..) Grammar Comprehension Profit-loss simple interest Speed, time & distance Trains n boats Work Calenders unions and intersections maps(north, south ,..) probability Technical questions:- Generally on Linux permuted index how to get top element from directory compress .zip to .gzip DNS server OSI layer virtual connections ports rate which one is faster vga,hdmi,... IPv6 based questions shortcuts commands in linux Cryptography questions role of ALU windows 10 32bit minimum RAM requirment MD5 and SHAH1 input and output in bits Class A, Nos. Address space available Parity bits, Even and odd file comparison side by side How to filter traffic Basically you should be good with linux , file handling , networking, hardware concepts about ports Round 2: technical round computer networks, IOT, Security,...