Answer:
a) Yes
b) Yes
c) Yes
d) No
e) Yes
f) No
Explanation:
a) All single-bit errors are caught by Cyclic Redundancy Check (CRC) and it produces 100 % of error detection.
b) All double-bit errors for any reasonably long message are caught by Cyclic Redundancy Check (CRC) during the transmission of 1024 bit. It also produces 100 % of error detection.
c) 5 isolated bit errors are not caught by Cyclic Redundancy Check (CRC) during the transmission of 1024 bit since CRC may not be able to catch all even numbers of isolated bit errors so it is not even.
It produces nearly 100 % of error detection.
d) All even numbers of isolated bit errors may not be caught by Cyclic Redundancy Check (CRC) during the transmission of 1024 bit. It also produces 100 % of error detection.
e) All burst errors with burst lengths less than or equal to 32 are caught by Cyclic Redundancy Check (CRC) during the transmission of 1024 bit. It also produces 100 % of error detection.
f) A burst error with burst length greater than 32 may not be caught by Cyclic Redundancy Check (CRC) during the transmission of 1024 bit.
Cyclic Redundancy Check (CRC) does not detect the length of error burst which is greater than or equal to r bits.
The answer to this question is A
Answer:
The operation that will occur first is D5*C6 (multiplication).
Explanation:
Excel’s default order of operator precedence mandates that Excel perform multiplication before addition and substraction. If you want the addition or substraction to be performed before multiplication or division, they must be in parentheses.
The order of operations in exel is:
1. Evaluate items in parentheses.
2. Evaluate ranges (:).
3. Evaluate intersections (spaces).
4. Evaluate unions (,).
5. Perform negation (-).
6. Convert percentages (%).
7. Perform exponentiation (^).
8. Perform multiplication (*) and division (/), which are of equal precedence.
9. Perform addition (+) and subtraction (-), which are of equal precedence.
10. Evaluate text operators (&).
11. Perform comparisons (=, <>, <=, >=).
