Answer:
![\left[\begin{array}{ccccc}1&1&1&0&1\\0&1&1&0&0\\1&0&0&1&0\\1&1&0&1&1\\1&1&0&0&0\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccccc%7D1%261%261%260%261%5C%5C0%261%261%260%260%5C%5C1%260%260%261%260%5C%5C1%261%260%261%261%5C%5C1%261%260%260%260%5Cend%7Barray%7D%5Cright%5D)
Explanation:
To keep the checksum length minimum ,checksum field should be a 4x4 matrix with two dimensional even parity bit.
For this purpose first create a matrix of RxC dimensions and add one even parity bit at the end of each row and column.
parity bit is sort of a check flag used to detect errors in binary data.Error detection is done by adding total number of 1's in the binary sequence.
There are two types of parity bits
- Even
- Odd
For even parity if total number of 1 is even parity bit for that sequence would be (0).
For even parity if total number of 1 is odd parity bit for that sequence would be (1)
For odd parity if total number of 1 is odd parity bit for that sequence would be (0)
For odd parity if total number of 1 is even parity bit for that sequence would be (1)
Answer:
The customer's browser has been hijacked by some attackers may be.
Explanation:
According to customer's explanation there is possibility that that his data may be stolen and he has to disconnect computer from network and then call given number in order to get back his data.
No. The attributes of the table correspond to columns within the table. Each unique set of attribute values taken together correspond to table rows. Sometimes referred to as "records".
Answer:
Following are the correct python code to this question:
n1 = float(input('Input first number: '))#input first number
n2 = float(input('Input second number: '))#input second number
n3 = float(input('Input third number: '))#input third number
n4 = float(input('Input fourth number: '))#input fourth number
average = (n1+n2+n3+n4)/4 #calculate input number average
product = n1*n2*n3*n4 # calculate input number product
print('product: {:.0f} average: {:.0f}'.format(round(product),round(average))) #print product and average using round function
print('product: {:.3f} average: {:.3f}'.format(product,average)) #print product and average value
Output:
Please find the attachment.
Explanation:
The description of the above python code can be defined as follows:
- In the above python program four variable "n1, n2, n3, and n4" is defined, in which we take input from the user end, and in these user inputs we use the float method, that converts all the input value in to float value.
- In the next step, two variable average and product are defined, that calculate all input numbers product, average, and hold value in its variable.
- In the last line, the print method is used, which prints its variable value by using a round and format method.
Answer:
I'd go with the 2nd one
If it heats up more & more, then it's lifespan will be shortened more & more. The more it heats up, the less durability it has.
