1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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.

You might be interested in
Color ___ indicates that one color is dominating a picture.
nevsk [136]
Color and defense indicates that one color is dominating  a picture
5 0
4 years ago
(PYTHON HOMEWORK)Given the following code snippet, which statement tests to see if all three sets are equal?:
wariber [46]

Answer:

Option D is the correct answer to the following question.

Explanation:

The following option is correct because three sets type variable i.e., "fruit", "fruit2", "fruit3" has contain the same values in it and then they ask for the option is correct if the all are equal and in the option c, there is the if statement in which check the condition if the variable "fruit" is equal to the variable "fruit2" and the variable "fruit" is equal to the variable "fruit3".

so, that' why the following option is correct.

The option A is not correct because there is no equal function in python and we use the operator == to check the condition.

The option B is incorrect because we can see that there is not equal to (!=) operator.

The option D is incorrect because we can see that there is an or operator are used which means if any of the conditions is true then, they return either the other condition is false.

8 0
4 years ago
PLS HURRY!
Debora [2.8K]

Answer:

D. All of the options listed are correct.

Explanation:

A macro, in excel sheet, is an action or series of action that repeats the keystrokes or mouse actions as many times as one wants. To view macro, shortcut key is to Pres Alt+F8; to delete, one needs to select the macro one wants to delete and press Delete button.

The another way to view macro is to go to the Developer tab, and select the Macro option in Code group. And, then select macro need to delete, and press Delete button.

Another shortcut is to press Alt+F11, and click  on Tools tab, click on Macros and then select macro need to be deleted, and press Delete.

So, all the options stated above are correct.

Therefore, option D is correct answer.

8 0
3 years ago
SATCOM in the Ku- and Ka- bands, as well as EHF systems are adversely affected by rain (the higher the frequency, the greater th
kap26 [50]

Answer:Answer:

TRUE

Explanation:

SATCOM in the Ku- and Ka- bands, as well as EHF systems are adversely affected by rain (the higher the frequency, the greater the effect) because one of the factors that affects availability in a satellites is rain. Higher frequencies in Ka-band (30/20 GHz), rain can have a very large effect that simply cannot be overcome at the usual levels of availability.

Rain reduces the quality of signals by interfering with the signals thereby, reducing their strength and quality.

Therefore Rain can not only degrade a satellite's signal, it can also cause a complete outage of the satellite's.

4 0
4 years ago
An interface that doesn’t contain any constants or methods is called a ____________ interface.
valina [46]
I dont under stand but i think it is a "plane"

4 0
4 years ago
Other questions:
  • Maya enjoys connectedWith her friends and social media apps but one of her friends post a lot of stuff that my thinks it’s annoy
    14·1 answer
  • Discuss OPENGL instruction to draw the following drawing primatives:
    14·1 answer
  • In which of the following situations will a macro make your work more efficient?
    7·1 answer
  • Who Can Infiltrate And Use Email Notifications To Camouflage Malicious Links ?
    13·1 answer
  • The amount of RAM storage is measured in A: GB The rule of thumb that predicts that CPU capacity will double every 2 years is ca
    11·1 answer
  • What is the location in the base interface of the link to
    7·1 answer
  • What are some of the functions in the Consolidate dialog box? Check all that apply.
    6·1 answer
  • When you hear music, read a printout, or view a video, you are using a computer's
    13·1 answer
  • All variables are----------------------------------------------- help please
    7·2 answers
  • The sum of these 9 numbers is 36. 2, 2, 6, 2, 1, 8, 7, 5, 3 What is the mean of these 9 numbers?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!