C. The viewing area of a web browser.
The viewport is the user's visible area of a web page.
Answer:
Block Chain is a system of recording information that makes it difficult or impossible to change, hack, or cheat the system.
A blockchain is essentially a digital ledger of transactions that is duplicated and distributed across the entire network of computer systems on the blockchain.
Hope this helps.
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Answer:
D. 25x24x23x22x21.....3x2x1.
Explanation:
The ceasar cipher is a encryption technique, that uses a combination of information or keys to encrypt an information.
The 25 shift ceasar cipher has 25 different combinations, so the number of probable random cipher substitution is 25!,
That is = 25 × 24×23× 22×..... ×2×1.
