The two access modes that are used when opening a file for input and output when pickling are rb and wb.
<h3>What is pickling?</h3>
Pickle is generally used in Python to serialize and deserialize a Python object structure. In other words, it is the act of transforming a Python object into a byte stream in order to save it to a file/database, maintain program state across sessions, or transport data over a network. By unpickling the pickled byte stream, the original object hierarchy can be recreated. This entire procedure is comparable to object serialization in Java or .Net.
When a byte stream is unpickled, the pickle module first makes an instance of the original object before populating it with the right data. To accomplish this, the byte stream only carries data relevant to the original object instance.
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Answer:
3.WDM
Explanation:
WDM ( wavelength division multiplexing ) involves signals composed of light beams WDM is used in communication where fibers are used it is used for multiplexing of number of carrier signals which are made of optical fibers by using different wavelength of laser light it has different wavelength so this WDM is used for signals composed of light beams it has property of multiplexing of signal
Radio buttons exist like selection lists in which they limit fields to a set of potential values; but, unlike selection lists, the options appear as respective controls in the web form.
<h3>
What is Radio button?</h3>
A radio button or option button exists as a graphical control element that permits the user to select only one of a predefined set of mutually exclusive options. The singular property of a radio button causes it distinct from checkboxes, where the user can select and unselect any numeral of items.
Radio buttons exist as a common way to permit users to make a single selection from a list of options. Since only one radio button can be selected at a period (within the same group), each available option must be its item and label. Radio buttons exist like selection lists in which they limit fields to a set of potential values; but, unlike selection lists, the options appear as respective controls in the web form.
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(python) Answer:
sum = 0
for i in range 1 to 101:
if i modulo 2 == 0:
sum += i
print(sum)
Explanation:
first we declare the sum variable
then go through all numbers 1 through 100 (range 1 to 101 because python range does not include the last number - if we did 1 to 100 it would look at 1 to 99)
if the number is even (divide by 2, check if there's a remainder, if not it's even and we will add the number to the sum
finally print the sum
<span>C. Average Income ih ope this helps
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