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BigorU [14]
3 years ago
9

When an Ethernet frame arrives at a computer, the Ethernet layer must hand the packet that it contains to the next higher layer

to be processed. The act of finding the right higher layer to pro-cess received packets is called demultiplexing. We know that in our case the higher layer is IP. But how does the Ethernet protocol know this? After all, the higher-layer could have been another protocol entirely (such as ARP). We have the same issue at the IP layer – IP must be able to deter-mine that the contents of IP message is a TCP packet so that it can hand it to the TCP protocol to process. The answer is that protocols use information in their header known as a "demultiplexing key" to determine the higher layer. O true O false
Computers and Technology
1 answer:
jok3333 [9.3K]3 years ago
8 0

Answer: The answer is True.

Explanation:

In the TCP/IP suite, when travelling through a physical network, information comes encapsulated in frames, which format depends on the Data Link Layer Protocol used.

For Ethernet networks, there is a special field, called TYPE, that once read by the software, informs to the Ethernet software to which higher layer must send the packet, once stripped the frame header.

This field TYPE is known as a "demultiplexing key" for the Data Link Layer Protocol.

At the IP level, the IP header contains a similar field, called PROTOCOL in IPv4 and NEXT HEADER in IPv6, which acts in the same way, telling to the IP software which is the higher layer to send the datagram, once stripped the IP Header.

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Hy plzz help me friends​
timama [110]

Answer:

Ok so RAM is Random-Access-Memory.

RAM can store data just like in a hard drive - hdd or solid state drive - ssd

but the thing is that ram is really fast and data is only stored when RAM chips get power. On power loss your all data will be lost too.

ROM thanslates to Read-Only-Memory - so data in ROM chips can't be modifyed computer can just read the data but not write.

Read-only memory is useful for storing software that is rarely changed during the life of the system, also known as firmware.

Have a great day.

Explanation:

3 0
3 years ago
Read 2 more answers
Question 5 / 15
erastova [34]

The value that would be returned based on the formula [=COUNTIF(A43:A47, "NP*")] in cell A49 is 4.

Microsoft Excel can be defined as a software application that is designed and developed by Microsoft Inc., so as to avail its end users the ability to analyze and visualize spreadsheet documents.

In Microsoft Excel, there are different types of functions (predefined formulas) and these include:

  • Sum function
  • Average function
  • Minimum function
  • Maximum function
  • Count function

A count function is typically used to to calculate the number of entries in a cell or number field that meets a specific (predefined) value set by an end user.

In this scenario, "NP*" is the specific (predefined) value that was set and as such the value that would be returned based on the formula in cell A49 is 4 because A43, A44, A45 and A46 contain the value "NP."

Read more on Excel formula here: brainly.com/question/25219289

7 0
1 year ago
Read 2 more answers
Variable costs are __________.<br><br> A. decreasing<br> B. increasing<br> C. static
lubasha [3.4K]
The answer is A. Decreasing
5 0
3 years ago
What is cache memory?Mention its importance. ​
Rus_ich [418]

Explanation:

collection of items of the same type stored in a hidden or inaccessible place.

3 0
3 years ago
Create a program that allows the user to input a list of first names into one array and last names into a parallel array. Input
natita [175]

Answer:

The program in Python is as follows:

firstName = []

lastName = []

while True:

   fName = input("First Name: ")

   lName = input("Last Name: (Enter to quit): ")

   if not lName:

       break

   firstName.append(fName)

   lastName.append(lName)

for i in range(len(firstName)):

   print(firstName[i] . lower()+"."+lastName[i] . lower()+" mycollege . edu")

Explanation:

See attachment for complete source file where comments are used as explanation

Download txt
8 0
3 years ago
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