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According to the passage, what is a signal?

According to the passage, what is a signal? Correct Answer The form of communication most related to cultural perceptions

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Consider the following statements regarding modulation : 1. The communication systems, where a weak signal is transmitted by the use of a modulation is essential in carrier signal. 2. When the frequency of the high frequency signal is varied in accordance with the intensity of the low-frequency weak signal, the modulation is said to be frequency modulation. 3. The process of recovering original baseband signal from the modulated signal is called phase modulation. Which of the above statements are correct ? 
Consider the following solution to the producer-consumer synchronization problem. The shared buffer size is ?. Three semaphores empty, full and mutex are defined with respective initial values of 0, ? and 1. Semaphore empty denotes the number of available slots in the buffer, for the consumer to read from. Semaphore denotes the number of available slots in the buffer, for the producer to write to. The placeholder variables, denoted by P, Q, R, and S, in the code below can be assigned either empty or full. The valid semaphore operations are: wait ( ) and signal ( ). Producer: Consumer: do {         wait (P) ;         wait (mutex) ;         //Add item to buffer         signal (mutex) ;         signal (Q) ; } while (1) ; do {          wait (R) ;          wait (mutex) ;          //Consume item from buffer          signal (mutex) ;          signal (S) ; } while (1) ;   Which one of the following assignments to P, Q, R and S will yield the correct solution?
A rectangular pulse train s(t) as shown in the figure is convolved with the signal cos2(4π × 103t). The convolved signal will be a
Signal Processing mcq question image
A signal contains components at 400 Hz and 2400 Hz This signal modulates a carrier of frequency 100 MHz. However, after demodulation, it is found that the 400 Hz signal component is present. The channel bandwidth is 15 kHz. What is the reason for the higher frequency signal not to be detected properly?
A DSB-SC signal is generated using the carrier signal cos (ωct + θ) and modulating signal m(t). What is the envelope detector output of this DSB-SC signal?
Consider the following threads, T1, T2, and T3 executing on a single processor, synchronized using three binary semaphore variables, S1, S2, and S3, operated upon using standard wait() and signal(). The threads can be context switched in any order and at any time. T1 T2 T3 While(true) { Wait(S3); Print(“C”); Signal (S2); } While(true) { Wait(S1); Print(“B”); Signal (S3); } While(true) { Wait(S2); Print(“A”); Signal (S1); }   Which initialization of the semaphores would print the sequence BCABCABCA….?
If the signal to be analyzed is an analog signal, we would pass it through an anti-aliasing filter with B as the bandwidth of the filtered signal and then the signal is sampled at a rate __________
The magnitude and phase of the complex Fourier series coefficient ak of a periodic signal x(t) are shown in the figure. Choose the correct statement from the four choices given. Notation: C is the set of complex number, R is the set of purely real numbers, and P is the set of purely imaginary numbers.
Signal Processing mcq question image
In the following question, the 1st and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/ the passage is split into four parts and named P, Q, R and S. These four parts are not given in their proper order. Read the sentence/ passage and find out which of the four combinations is correct. 1. A range of extreme weather events in 2018 — think extreme rainfall, floods, landslides, cyclones, and heatwaves — claimed 2,081 lives in India, more than181 other countries that featured on a new global climate risk index. P. These rankings were recently released by the non-profit Germanwatch in a report titled The Global Climate Risk 2020, the results of which are calculated based on average values over a 20-year period, i.e., 1998 to 2018. Q. In terms of economic losses, India ranked second. Overall, per this index, in 2018, India was the fifth-worst-hit country by climate change, pushed up by nine ranks from 2017, when it was the 14th. R. Talking of rainfall-related calamities such as cyclones, floods, and landslides, as many as 6,585 people have died in India in the three-year period leading up to July 2019. S. In 2018, India was affected by a range of extreme weather events including floods in Kerala, tropical cyclones like Gaja and Titli, as well as a prolonged heatwave, all of which have collectively propelled India to the top position. 6. “This is a clear signal that climate change impacts are happening, and increasing everywhere, including in developed countries.
In the following question, the first "and the last sentences of the passage are in order and numbered S1 and S6. The rest of the passage is split into four parts and named P, Q, R and 5. These four parts are not given in their proper order, as they should appear in the paragraph. Read the passage and find out which of the four combinations correctly forms the sequence of sentences in the passage - S1: One key prevention is making personnel throughout the organisation aware of the fraud risk management program, including the types of fraud and misconduct they may occur. P : With this in mind, prevention and deterrence are interrelated concepts. Q: This awareness should enforce the notion that all of the techniques established in the Programme are real and will be enforced. R: The ongoing communication efforts could provide information on the potential ' disciplinary, criminal and civil actions that the organization could take against the individual. S : If effective preventive controls are in place, working and well-known to potential fraud perpetrators, they serve as strong deterrents to those who might otherwise be tempted to commit fraud. S6: Fear of getting caught is always a strong deterrent. Effective preventive controls are, therefore, strong deterrence controls. mos