1. How does the transport layer determine which unit with the application layer should receive an incoming message? 2. What keeps a computer on the Internet from recording copies of all the messages...

1.
How does the transport layer determine which unit with the application layer should receive an incoming message?

2.
What keeps a computer on the Internet from recording copies of all the messages passing through it?

3.
What is
phishing? How are computers secured against it?

4.
What distinction is there between the types of firewalls that can be placed at a domain’s gateway as opposed to an individual host within the domain?

5.
Technically, the term
data
refers to representations of information, whereas
information
refers to the underlying meaning. Does the use of passwords protect data or information? Does the use of encryption protect data or information?