Presentación sin título

Multiple Choice

What is the characterization of telecommunications systems?

• Definition of telecommunications

• Types of telecommunications systems

• Importance of telecommunications

• Components of telecommunications systems

Multiple Choice

A device that converts signal into sound, pictures, or readable text for the receiver.

• encoder

• decoder

• transmitter

• source

Multiple Choice

 device to exchange items such as data, instructions, and information with another computer. 

• Hardware - Communication device
• Hardware - STORAGE
• Hardware - SYSTEM UNIT
• Hardware - INPUT

Multiple Choice

Which one of these lets you call friends?

Multiple Choice

What are the main elements that intervene in a telecommunications system?

• Transmitter

• Receiver

• Channel

• Modulator

Multiple Choice

In which modulating system, bit stream is portioned into even and odd stream?

• Quadrature Amplitude Modulation (QAM)
• Quadrature Phase Shift Keying (QPSK)

• Frequency Shift Keying (FSK)
• Phase Shift Keying (PSK)

Multiple Choice

What are the components of a coaxial cable as shown in the image?

• Inner conductor, dielectric, outer conductor, insulating layer

• Inner conductor, shielding, outer conductor, insulating layer

• Inner conductor, dielectric, outer conductor, grounding layer

• Inner conductor, dielectric, outer conductor, signal layer

Open Ended

¿A qué tecnología corresponden las siguientes antenas?

Open Ended

Presenta al menos 3 ejemplos de tecnologías cotidianas e identifica los elementos involucrados en cada proceso de comunicación.

Open Ended

¿qué diferencia un protocolo de un código?

Multiple Choice

Which of the following is NOT an element of communication within the communication process cycle?

• (a) Channel

• (b) Receiver

• (c) Sender

• (d) Time

Multiple Choice

Which term is NOT part of the sending of a message in the communications process?

• transmitter

• source

• receiver

• encoder

Multiple Choice

Which term is NOT part of the receiving of a message in the communications process?

• receiver

• decoder

• encoder

• destination

Multiple Choice

What are the key elements involved in the communication process as illustrated in the diagram?

• Common protocol

• Channel

• Messages

• Common code

Multiple Choice

What are the characteristics of digital signals?

• Continuous variation in time

• Limited values

• Discrete values

• Analogous signals

Multiple Choice

What is the process of converting sound waves into electrical voltage and then into binary data?

• Analog to Digital Conversion

• Digital to Analog Conversion

• Sound Wave Processing

• Electrical Voltage Generation

Multiple Choice

What is the process of converting analog signals to digital signals called?

• Analog to Digital Conversion

• Digital to Analog Conversion

• Signal Processing

• Data Compression

Multiple Choice

What is the process of converting an analog signal to a digital signal called?

• Sampling

• Quantization

• Encoding

• Modulation

Multiple Choice

What role does quantization play in digital audio?

• It encrypts the audio to protect copyright.

• It compresses the audio file to reduce its size.

• It converts continuous amplitude values into discrete values.

• It increases the sampling rate for better quality.

Multiple Choice

What is the frequency of sampling in the analog to digital conversion shown in the image?

• 1 sample/second

• 2 samples/second

• 3 samples/second

• 4 samples/second

Multiple Choice

If a sound has a maximum frequency of 20 kHz, what is the minimum sampling rate required according to Nyquist's Theorem?

• 10 kHz

• 20 kHz

• 40 kHz

• 80 kHz

Multiple Choice

Reconstruct the initial analog signal considering the following parameters: - The coding has been done using 3 bits - The sampling frequency has been 1 sample/second. What is the initial analog signal for the given BIT STREAM 001000010011100101?

• 00000000000000000000

• 00000000000000000001

• 00000000000000000010

• 00000000000000000011

Multiple Choice

What is the definition of frequency in the context of telecommunications?

• Number of repetitions of a phenomenon per unit of time

• The speed of a signal

• The amplitude of a wave

• The distance between two waves

Multiple Choice

¿Cuál es la frecuencia de las siguientes dos ondas?

• 0.5 Hz

• 1 Hz

• 2 Hz

• 3 Hz

Multiple Choice

What is the effect of the Doppler effect on sound waves from a moving source compared to a stationary source?

• The frequency decreases for a moving source

• The frequency increases for a moving source

• The frequency remains constant for both sources

• The frequency is only affected by distance

Multiple Choice

¿Qué ocurre cuando dos señales de identica frecuencia coinciden en el espacio?

• Interferencia constructiva

• Interferencia destructiva

• No ocurre nada

• Se amplifican

Multiple Choice

What is the relationship between frequency and time in the context of telecommunications signals?

• Frequency increases with time

• Frequency decreases with time

• Frequency is independent of time

• Frequency is inversely proportional to time

Multiple Choice

Antipodal signal sets are those vectors that can be illustrated as

• Two 180 opposing vector

• Two 90 opposing vector

• Two 360 opposing vector

• None of the mentioned

Multiple Choice

What does the graph on the right represent in terms of frequency analysis?

• Time variation of the signal

• Energy distribution across frequencies

• Amplitude modulation

• Signal phase shift

Open Ended

Explain the significance of the frequency analysis shown in the image. How does it relate to telecommunications?