Answer:
The receiver will not detect the error.
Explanation:
The byte sent by transmitter: 10101010
The byte received by receiver due to channel noise: 10011010
If you see the bold part of the both sent and received bytes you can see that the number of bits changed is 2.
The two communicating devices are using a single-bit even parity check. Here there are two changed bits so this error will not be detected as this single bit even parity check scheme has a limit and it detects the error when the value of changed bit is odd but here it is even.
This parity scheme basically works well with the odd number of bit errors.
Answer:
Option 4 is correct ,=(B2+C9)
Explanation:
In excel a formula starts with an equal sign followed by the expression.
In first option the formula is incorrect inside the brackets. where 4 is equating to bracket. In 2nd option opening and closing brackets are not same. First closing bracket is missing an opening bracket. In third option all the formula is correct except the part where # is used in formula. Hash tags cannot be used in formula as a value. Here in option D B2 and C9 are cell in excel, whereas parentheses are only used for better readability.
Answer:
I'm not a big tech head but I know that creating a restore point is highly recommended for changing anything that you aren't 100% sure about to your computer.
