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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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Write a statement that outputs variable numObjects. End with a newline.
dalvyx [7]

Answer:

The code is witten in Java and given in the explanation section.

Using a Scanner object we receive a the user's input and with the System.out.println we output the variable

Explanation:

import java.util.Scanner;

public class VariableOutput{

   public static void main (String [] args){

       Scanner input = new Scanner(System.in);

       System.out.println("Enter an Integer 15 or 40");

       int numObjects = input.nextInt();

       System.out.println("You entered the number "+numObjects);

   }

}

7 0
3 years ago
There is no way to track your smartphone once you lost it, true or false?
Ymorist [56]
If you originally had a tracking device installed on a different device like find my iPhone, you can easily see where it is. If your phone is Android, Google has a system where you can search where's my phone, and if you have your email login into your phone, you can log in on Google and Google will show you where it is. 
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3 years ago
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Assuming a 32bit processor If I have a double pointer defined as dPtr and I add 1 to it. How many bytes are added to the address
Anni [7]

Answer:

Theoretically one could design an architecture that would address 16 GB of memory with 32-bits of unique addresses.

Explanation:

4 0
2 years ago
O How basic blocks are identified and how the blocks are used to construct control flow graphs
OLEGan [10]

Basic blocks are identified  because they are known to be a straight line that is known also as a code sequence that tends to have no branches in regards to its in and out branches and its exception is only to the entry and at the end.

Note that  Basic Block is said to be a composition  of statements that is known to be one that often always executes one after other, and this is often done in a sequence.

<h3>How do you create a flow graph from the basic blocks?</h3>

Flow graph  is gotten by:

  • Lets Block B1 be the initial node and also Block B2 will tend to follows B1, so from B2 to B1 there is seen a kind of an edge.

Note that the first task is for a person to partition a sequence of three-address code and this is done into basic blocks.

Hence, Basic blocks are identified  because they are known to be a straight line that is known also as a code sequence that tends to have no branches in regards to its in and out branches and its exception is only to the entry and at the end.

Learn more about basic blocks from

brainly.com/question/132319

#SPJ1

5 0
1 year ago
A ____________________ machine is used to gather or arrange in their proper sequence.
Iteru [2.4K]

Answer:

A collating machine is used to gather or arrange in their proper sequence.

Explanation:

4 0
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