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Over [174]
2 years ago
3

A host receives a frame and computes the checksum and determines that the frame is damaged. The frame is discarded. At what laye

r of the OSI model did this happen?
1. Transport2. Network3. Data Link4. Physical
Computers and Technology
1 answer:
Sav [38]2 years ago
3 0

Answer:

3. Data link layer

Explanation:

For a frame to be created in the data link layer, the frame header and trailer must be used to encapsulate the packet from the network layer. The header contains the MAC address if the destination device and the trailer has the CRC and other parameters and flags.

The CRC or cyclic redundancy check is a calculation of the frame used to check for correctness at the destination. When the frame gets to the data-link layer of the destination device, it calculates the CRC and compares the result with that of the source. If they are equal, the frame moves on, if not, it is discarded.

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Answer:

The solution code is written in Python 3 as below:

  1. outfile = open("greeting.txt", "w")
  2. outfile.write("Hello World")
  3. outfile.close()

Explanation:

To create a simple text file in Python, we can use Python built-in function, <em>open()</em>. There are two parameters needed for the open() function,

  1. the file name and
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The statement <em>open("greeting.txt", "w")</em> will create a text file named "<em>greeting.txt</em>" (Line 1)

To fill up the content in the greeting.txt, we use <em>write()</em> method. Just include the content string as the argument of the <em>write()</em> method. (Line 2)

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2 years ago
"use the ______ element to create logical areas on a web page that are embedded within paragraphs or other block formatting elem
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Answer:

"use the span element to create logical areas on a web page that are embedded within paragraphs or other block formatting elements."

Explanation:

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  • <span> element is actually a generic in-line tool/container which is used for content phrasing. Its functionality is much like a <div> element but <div> is a block-level element and on the other hand <span> element is in-line element.

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Answer:

offline backup solution

Explanation:

In such a scenario, the best option would be an offline backup solution. This is basically a local and offline server that holds all of the flight record data that the cloud platform has. This offline backup server would be updated frequently so that the data is always up to date. These servers would be owned by the aviation company and would be a secondary solution for the company in case that the cloud platform fails or the company cannot connect to the cloud service for whatever reason. Being offline allows the company to access the database regardless of internet connectivity.

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