Answer:
the mouse is an optical mouse
Explanation:
The user's mouse does not have a ball to be cleaned when it does not work right because he or she is using an optical mouse. This type of mouse does not use the old-ball-system, but rather uses a light source, which usually consist of a light detector and a light-emitting diode, and this set-up ensures that movement is detected relative to a surface and hence the cursor is moved too.
Answer:
Using the Python Programming Language:
def isRed(myString):
if "red" in myString:
return True
else:
return False
Explanation:
The function definition is given above. To output the result of calling this function, we declare a string variable and call the function inside a print statement. See the two lines of code below:
myString= "My house is coloured red"
print (isRed(myString))
Notice that we defined the function called isRed to receive a string as a parameter, Then using the in keyword with an if statement, we check for the presence of the word 'red' in the string that is passed as argument to the function, the function will then return True if the word 'red' is present or False if it is not.
Answer: D) Do an extensive web search to learn if it is a real virus.
Logical explanation: In the example, it is not a pop-up that you have a virus and instead an email that you have a virus. There is a very likely way that it could be a prank, scam, or a hacker.
Elimination explanation: If we look at all the answers:
A (Forward it to everyone in your address book) makes no sense, so A is eliminated.
Then with B (Forward it to your tech administrator) makes sense because if it was a real virus they may know what to do, but as my 'Logical explanation' explains, it may not be.
Finally with C, it's very irresponsible and should not be done. If it was a real virus there is a possibility it could be someone trying to steal information and more.
This leaves only option D left. :)
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