Explain the difference between external, internal, and conceptual schemas. How are these different schema layers related to the concepts of logical and physical data independence?

Q-1 which of the following can exist as cloud-based it resources? a. physical serverb. virtual serverc. software programd. network device

What is the largest decimal number that can be represented by a binary number with 4 place values? (remember, each place in a binary number has a value of a power of 2, starting in the ones place with 20.)

One subtask in the game is to roll the dice. explain why is roll the dice an abstraction.