Blockchain Test 2

Question 1

Blockchain addresses, or "accounts," are generated in most blockchain designs by:

Accepted Answer

Creating a hash based on a cryptographic public key and various meta data

Answer

The correct answer:
Creating a hash based on a cryptographic public key and various meta data

Question 2

The secret, the function, the key, and the _____ are the essential components of any cryptographic system.

Accepted Answer

Hash

Answer

Explanation:
When discussing blockchain technology, the word hashing or (hash) is commonly used. Hashing is the process of transforming and generating any length of input data into a fixed-length string using a specific algorithm. The Bitcoin hash algorithm is SHA-256, which stands for Secure Hashing Algorithm 256 bits. Because the original data cannot be decrypted, this approach is a one-way cryptographic function.

Question 3

How are data blocks "chained" together to ensure transaction integrity?

Accepted Answer

The hash of the previous block is written to the header of the current block

Answer

Explanation:
Blocks of data entries and transactions are chained together and kept in an immutable format, allowing authorized network users to view and add information while preventing changes to existing records. Data integrity and participant authentication are ensured by sophisticated cryptography and key management.

Question 4

Which of the following can be used to protect anonymity in blockchain applications?

Accepted Answer

End-to-end encryption

Answer

Explanation:
The goal of end-to-end encryption is to prevent data from being read or secretly manipulated by anybody other than the sender and recipient (s). The sender encrypts the messages, but the third party has no way of decrypting them and stores them encrypted. The encrypted data is retrieved and decrypted by the recipient.

Question 5

What is the main distinction between a blockchain and a blockless solution?

Accepted Answer

Transactions are not verified by the entire network in a blockless environment

Answer

The correct answer:
Transactions are not verified by the entire network in a blockless environment

Blockchain Practice Test

Blockchain Practice Test

Blockchain Test 2