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WorksheetsData & Signal
Total questions: 20
Worksheet time: 17mins
A _____________ completes a pattern within a measurable time frame, called a period
Aperiodic Signal
Periodic Signal
Aperiodic Data
Periodic Data
How can we represent sine wave fully?
Peak amplitude
Frequency
Phase
Bandwidth
Frequency refers to the number of periods in (a) second.
When a signal changes instantaneously, its period is zero; so the frequency is infinite.
True
False
What is phase?
A single-frequency sine wave is useful in data communications.
True
False
If a composite signal contains frequencies between 1000 and 5000, what is its bandwidth?
1000
2000
3000
4000
(a) is the number of bits sent in 1s.
The __________ is the distance one bit occupies on the transmission medium.
Wavelength
Bit length
Frequency
Period
What is baseband transmission?
A low-pass channel has ______ bandwidth
Zero
One
100
Infinite
If a low-pass channel has bandwidth 100 kHz, what is the maximum bit rate of this channel?
100kHz
200kHz
300kHz
400kHz
Which of the following is/are the causes of transmission impairment ?
Jitter
Attenuation
Distortion
Noise
The value of SNR for a noiseless channel ____.
Zero
One
Infinite
None of the above
To calculate bit rate, which formula is used for a noiseless channel?
BitRate = 2 X Bandwidth
BitRate = Bandwidth X Log (1 + SNR)
BitRate = 2 X Bandwidth X Log L
BitRate = 2 X Frequency
The Shannon capacity gives us the upper limit.
True
False
An increase in (a) in hertz means an increase in bits per second.
Which of the following is not the component in the calculation of Latency?
Propogation time
Transmission time
Processing delay
Recurring time
What is the propagation time if the distance between the two points is 12,000 km? Assume the propagation speed to be 2.4 × 10^8 m/s in cable.
10 ms
50 ms
100 ms
150 ms
The bandwidth-delay product defines the number of bits that can fill the link.
True
False
