Blockchain day 2

Blockchain day 2

Professional Development

9 Qs

quiz-placeholder

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Blockchain day 2

Blockchain day 2

Assessment

Quiz

Computers

Professional Development

Practice Problem

Hard

Created by

lightrayzz lightrayzz

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9 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does hashing means in Blockchain Technology?

Plain text to Hashed Text to Hash functions

Plain text to Public key to Hash Text

Plain text to Hash Functions to Security Key

Plain text to Hash Functions to Hashed Text

2.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Select the answers that best suit why Blockchain Mining is considered a peer to peer process

Transactions are passed around nodes to nodes

Solving complex computation mathematics problems

Node that solves the math problem wins a reward such as Bitcoin

None of the above

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Is it true that cryptography involves 2 types of keys?

No

Yes

Sometimes

4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

The first block in a Blockchain database is called:

5.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

What are the main differences between Proof of Work (POW) and Proof of Stake (POS) Consensus Algorithm? (Check all that apply)

POW has no reward while POS is given a reward for their work

There are no differences

POW uses computing power while POS stake their coins on the blocks

POS has uses the term validators while POW has miners

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Whenever you want to send a payment to a recipient via blockchain, you ask for?

Blockchain Address

Blockchain Key

Blockchain Number

Blockchain Wallet

7.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Despite the potentials of Blockchain Technology, why are there still risk in Blockchain?

Hackers can still hack your computing power with malware

Inability to recognise legitimate cryptocurrencies versus scams

Consumers lack of understanding in managing their cryptocurrencies

Lack of regulations catching up with fast moving innovation in blockchain technology

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