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earnstyle [38]
2 years ago
7

What are some ways to accomplish full-duplex (FDX) digital communications on guided medium at the physical layer (OSI Layer 1)?

a. Separate digital receive and transmit paths onto their own physical channels/circuits b. Modulate receive and transmit channels onto different carrier frequencies, thus allowing FDX on the same physical medium c. Separate transmit and receive channels on the same physical medium by separating them in time (i.e., TDM) d. All of the above
Computers and Technology
1 answer:
labwork [276]2 years ago
6 0

Answer:

d. All of the above

Explanation:

Physical layer is the lowest layer of the OSI reference model that deals with the setup of physical connection to the network and with transmission and reception of signals.

Full duplex (FDx) is a bidirectional type of communication system where two end nodes send and receive data signals at the same time, and a single carrier is simultaneously used for dual communication.

To send or receive data, the participating nodes in a Full Duplex system do not have to wait for a free carrier/medium. It employs a medium that has at least two internal channels - one for sending and one for receiving.

Based on the above explanations, options A, B and C are valid and are correct ways to accomplish full-duplex (FDX) digital communications on guided medium at the physical layer (OSI Layer 1). There all of them are correct.

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Technician A says that the excessive length of a heater hose is intended to protect the heater core from undue stress. Technicia
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6 0
2 years ago
3.A customer has a system with a Gigabyte B450 Aorus Pro motherboard. He wants to upgrade the processor from the AMD Athlon X4 9
Burka [1]

Answer:

The upgrade is possible and it will yield a remarkable  increase in performance

Explanation:

It is a newer product, there is tendency of having a better application compatibility/performance

It has much higher multi threaded performance which is around 522% higher. This allows for higher performance in professional applications like encoding and heavy multitasking compared to the previous.

When considering gaming, it has higher performance compared to the previous.

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2 years ago
Replace any alphabetic character with '_' in 2-character string passCode. Ex: If passCode is "9a", output is: 9_
oksian1 [2.3K]

Answer:

if(isalpha(passCode[0]))

{

passCode[0] = '_';

}

if(isalpha(passCode[1]))

{

passCode[1] = '_';  

}

         

Explanation:

The first if statement uses isalpha() function which checks if the character passed in this function is an alphabet. If the character stored in 0-th position (which is the first position whose index is 0) of the variable passCode is an alphabet then it is replaced with the '_'

The next if statement checks if the second character in the passCode variable is an alphabet. This means the function isalpha() checks if the character stored in second position (index 1) of the variable passCode is an alphabet then it is replaced with the '_'

The  complete activity with this chunk of code added and the output is attached in a screen shot.

4 0
2 years ago
Always refill your gas tank well before____.
mash [69]

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Hope this helps.

"Stay Brainly and stay proud!" - Zalgo

4 0
2 years ago
Read 2 more answers
What output is produced by the following program segment? Why? (Recall that name.charAt(i) is the i-th character in the string,
vekshin1

Answer:

The output is:

R

M

N

Explanation:

The code snippet print the beginning letter of each word in the given name.

In the for loop snippet:

first the program check if startWord is true and it is true, then it print the value of the character at index 0. Then it check if value of character is empty. If it is empty, startWord is initialized to true else it is initialized to false.

The loop only print a character when the value of i are 0, 8 and 11 which are also the beginning character of a word.

8 0
2 years ago
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