Question

What is the bandwidth of the transmission medium used?

• A. 500 kHz
• B. 1500 kHz
• C. 1000 kHz
• D. 2000 kHz
• A. 6400 bps
• B. 640 kbps
• C. 6400 kbps
• D. 64000 bps
• A. Half duplex communication
• B. Simplex communication
• C. Duplex communication
• D. Full duplex communication
• A. 200 bits
• B. 16000 bits
• C. 8 bits
• D. 128000 bits
• A. bits, character
• B. bytes, frequency
• C. Bandwidth, data transfer rate
• D. Bandwidth, frequency

Answer 1

The Correct Option is C

The bandwidth of the transmission medium can be calculated using the Nyquist formula: \[ \text{Bandwidth} = \frac{\text{Maximum Frequency} - \text{Minimum Frequency}}{2} \] Given: - Maximum Frequency = 1500 kHz - Minimum Frequency = 500 kHz Thus, the bandwidth is: \[ \text{Bandwidth} = \frac{1500 \, \text{kHz} - 500 \, \text{kHz}}{2} = 1000 \, \text{kHz} \] Therefore, the correct answer is "1000 kHz."

Answer 2

To calculate the required data rate, first calculate the total number of bits transferred per second. - Each page has 1600 characters, and each character is 8 bits. Therefore, each page has: \[ 1600 \times 8 = 12800 \, \text{bits} \] - The user wants to upload 10 pages per 20 seconds, so the number of bits uploaded per second is: \[ \frac{10 \times 12800}{20} = 6400 \, \text{bps} \] Therefore, the required data rate is 6400 bps, so the correct answer is "6400 bps."

Answer 3

In this scenario, the user is both uploading and receiving data simultaneously. This describes Full Duplex communication, where data can flow in both directions at the same time. In contrast, Simplex communication allows data to flow in only one direction, Duplex communication allows two-way communication but not simultaneously, and Half duplex communication allows two-way communication but only one direction at a time.
Therefore, the correct answer is "Full duplex communication."

Answer 4

Each page contains 1600 characters, and each character is 8 bits. Therefore, the number of bits per page is: \[ 1600 \times 8 = 12800 \, \text{bits} \] Since the user wants to upload 10 pages, the total number of bits to upload is: \[ 10 \times 12800 = 128000 \, \text{bits} \] Therefore, the correct answer is "128000 bits."

Answer 5

The capacity of a transmission medium is primarily determined by its Bandwidth (the range of frequencies it can carry) and data transfer rate (the amount of data that can be transmitted per unit of time). Therefore, the correct answer is "Bandwidth, data transfer rate."