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n200080 [17]
3 years ago
6

In a blockchain, each block has a unique hash value which is dependent on the hash value of the previous block in the chain. Wha

t happens if any transaction data is changed or modified in the earlier existing blocks?
Computers and Technology
1 answer:
pantera1 [17]3 years ago
4 0

Answer: hello your question lacks the required option, below are the missing options

A. The transaction data in the tampered block is deleted, and a copy is created with the same hash value.

B. The hash values of transaction data of subsequent blocks are validated, and the chain is broken.

C. The hash value for the entire block is nullified, creating a domino effect on all subsequent blocks.

D. The hash values of subsequent blocks are updated as soon as they are tampered with, and the chain continues.

answer : The hash values of subsequent blocks are updated as soon as they are tampered with, and the chain continues ( D )

Explanation:

What happens if a transaction data is changed in an earlier existing block in a Blockchain is that the Hash values of subsequent blocks will be updated as soon as they are tampered with and the chain will continue.

Blockchain is a specially design system for recording information, hence any change in data inputted in an earlier existing blocks that changes will automatically be updated as well in all preceding blocks.

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VashaNatasha [74]

The top right answer

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Write a C++ program to count even and odd numbers in array. The array size is 50. The array elements will be entered by the user
vlabodo [156]

Answer:

The program in C++ is as follows:

#include <iostream>

using namespace std;

int main(){

   int numbers[50];

   int evekount = 0, odkount = 0;

   for(int i = 0; i<50;i++){

       cin>>numbers[i];

       if(numbers[i]%2==0){            evekount++;        }

       else{            odkount++;        }

   }

   cout<<"Even Count: "<<evekount<<endl;

   cout<<"Odd Count: "<<odkount<<endl;

   return 0;

}

Explanation:

This declares the integer array of number

   int numbers[50];

This initializes the even count and odd count to 0

   int evekount = 0, odkount = 0;

This iterates from 1 to 50

   for(int i = 0; i<50;i++){

This gets input for the array

       cin>>numbers[i];

This checks for even

<em>        if(numbers[i]%2==0){            evekount++;        }</em>

This checks for odd

<em>        else{            odkount++;        }</em>

   }

This prints the even count

   cout<<"Even Count: "<<evekount<<endl;

This prints the odd count

   cout<<"Odd Count: "<<odkount<<endl;

3 0
3 years ago
Mention 3 components that can be found at the back and front of the system unit​
Radda [10]

Answer:

<u>Back</u>

Power port, USB port, Game port

<u>Front</u>

Power button, USB port, Audio outlet

Explanation:

There are several components that can be found on the system unit.

In most (if not all) computer system units, you will find more component at the back side than the front side.

Some of the components that can be found at the back are:

Ports for peripherals such as the keyboard, mouse, monitor, USB ports, power port, etc.

Some of the components that can be found at the back are:

The power button, cd rom, audio usb ports, several audio outlets, video port, parallel ports, etc.

Note that there are more components on the system units. The listed ones are just a fraction of the whole components

3 0
3 years ago
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Answer:

1. file sharing

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3.sharing

4.communication

5.flexible access

Explanation:

-

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Answer:

i think it is B

Explanation:

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