Q1 What is the time period of the function x[n] = exp(jwn)?

Difficulty - Medium || Topic - Discrete time signal

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Q2 What is the nature of the following function: y[n] = y[n-1] + x[n]?

Difficulty - Easy || Topic - Discrete time signal

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Q3 Is the function y[n] = x[n-1] – x[n-4] memoryless?

Difficulty - Medium || Topic - Discrete time signal

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Q4 Is the function y[n] = x[n-1] – x[n-56] causal?

Difficulty - Medium || Topic - Discrete time signal

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Q5 Is the function y[n] = y[n-1] + x[n] stable in nature?

Difficulty - Hard || Topic - Discrete time signal

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Q6 If n tends to infinity, is the accumulator function a stable one?

Difficulty - Hard || Topic - Discrete time signal

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Q7 Discrete-time signals are ___

Difficulty - Easy || Topic - Discrete time signal

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Q8 Determine the discrete-time signal: x(n)=1 for n≥0 and x(n)=0 for n<0

Difficulty - Medium || Topic - Discrete time signal

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Q9 Determine the product of two signals: x1 (n) = {2,1,1.5,3}; x2 (n) = { 1,1.5,0,2}.

Difficulty - Hard || Topic - Discrete time signal

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Q10 Which of the following is not a standard used for paging system?

Difficulty - Easy || Topic - Wireless and mobile communication

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Q11 Paging system uses which mode of transmission?

Difficulty - Medium || Topic - Wireless and mobile communication

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