Related InterviewSolutions

• The segment of the key-stream of plaintext is obtained by _____of two sequences together.(a) ANDing(b) ORing(c) Addition(d) Modulo 2 additionThe question was asked by my school teacher while I was bunking the class.This key question is from Stream Encryption and Commercial Applications topic in chapter Spread Spectrum Techniques of Digital Communications
• Perfect secrecy can be achieved for(a) Finite number of messages(b) Infinite number of messages(c) Finite & Infinite number of messages(d) None of the mentionedI have been asked this question in an interview for internship.Origin of the question is Stream Encryption and Commercial Applications in portion Spread Spectrum Techniques of Digital Communications
• Cryptosystems are used for(a) Privacy(b) Authentication(c) Privacy & Authentication(d) None of the mentionedThis question was addressed to me in class test.The above asked question is from Cipher Systems and Secrecy of Cipher Systems in division Spread Spectrum Techniques of Digital Communications
• Which serves the soft hand-off process?(a) Base station(b) Mobile switching center(c) Mobile(d) None of the mentionedI had been asked this question by my school principal while I was bunking the class.The doubt is from Cellular Systems topic in chapter Spread Spectrum Techniques of Digital Communications
• Which channel is more robust?(a) Forward channel(b) Reverse channel(c) Forward & Reverse channel(d) None of the mentionedI had been asked this question during an interview.My doubt stems from Cellular Systems topic in division Spread Spectrum Techniques of Digital Communications
• If the active users using a cell doubles, the required Eb/I0(a) Doubles(b) Halves(c) Remains the same(d) None of the mentionedThe question was asked in a national level competition.The question is from Cellular Systems topic in portion Spread Spectrum Techniques of Digital Communications
• How many channels are transmitted in the forward and reverse direction?(a) 1,64(b) 64,1(c) 2,32(d) 32,2I got this question by my college professor while I was bunking the class.This question is from Cellular Systems in section Spread Spectrum Techniques of Digital Communications
• In the case of direct CDMA, interference will occur if the PN codes are(a) Orthogonal to each other(b) Non orthogonal to each other(c) Orthogonal & Non orthogonal to each other(d) None of the mentionedThe question was asked during an online interview.The above asked question is from Cellular Systems topic in chapter Spread Spectrum Techniques of Digital Communications
• The properties used for pseudorandom sequence are(a) Balance(b) Run(c) Correlation(d) All of the mentionedI got this question in examination.My question comes from Pseudo-Noise Sequence and Jamming topic in section Spread Spectrum Techniques of Digital Communications
• Pseudorandom signal ________ predicted.(a) Can be(b) Cannot be(c) maybe(d) None of the mentionedThe question was asked at a job interview.I'm obligated to ask this question of Pseudo-Noise Sequence and Jamming in division Spread Spectrum Techniques of Digital Communications