Here are the answers to your questions:
Question 1: ECommerce is making transactions or facilitating business on the internet.
Answer: True
Question 2: Establishing the identity of one party to another is...
Answer: authentication
Question 3: Buying up well-known company names and registering them on the internet as a domain is known as...
Answer: Cybersquatting
Question 4: Some Online Payment options are...
Answer: All of the above (Paypal, Stripe, Square)
Question 5: An advantage to Internet banking is that you can pay your bills directly.
Answer: True