Yes. Originally ARPAnet (Advanced Research Projects Agency) was conceived as a network between large universities, the government, the military and government contractors. Basically a bunch of friends and aquaintences. Security really wasn't a consideration until after ARPAnet was opened to the public.
They hold a lot of data and if they are tampered with, they can be ddossed
the second one is correct
and the 3rd and 4th
Answer: PLC uses:
1. Decimal Number system
2. Binary Number system.
3. Octal Number system.
4. Hexadecimal Number system.
5. Binary Coded Decimal Number system.
6. Negative Number system.
7. Number Conversations.
Explanation: The other numbers the Programmable Logic Controller(PLC) uses aside the decimal number system are:
1. Binary Number system.
2. Octal Number system.
3. Hexadecimal Number system.
4. Binary Coded Decimal Number system.
5. Negative Number system.
6. Number Conversations.
Cursor is the perfect answer. but as per your options , insertion point could be the answer