2. A hard bounce is the failed delivery of an e-mail due
to a permanent reason like a non-existent address
A soft bounce is an e-mail message that gets as far as
the recipients mail server but is bounced back
undelivered before it gets to the intended
recipient. A soft bounce might occur because the
recipient’s inbox is full.

3. Computer spam is defined as unsolicited
junk mail. It may be an advertisement for
a product sent to a mailing list or
newsgroup. This is unwanted among
email users.

4. Internet is an electronic communications network

that connects computer networks around he world.
Intranet is a private computer network with a

firewall that is accessible only by the organization's
members, employees, or others with

5. post office protocol, a protocol used to

retrieve e-mail from a mail server

6. Phishing is the act of sending an e-mail to a user falsely

claiming to be an established legitimate business in an
attempt to scam the user into surrendering private information
that will be used for identity theft.
The e-mail directs the user to visit a Web site where they are

asked to update personal information, such as passwords
and credit card, social security, and bank account.
The web site, however, is bogus and set up only to steal the

user’s information.

7. Encryption- scrambling of information for

security purposes to be sent across the
Internet
 Decryption- descrambling of information
for security purposes that has been sent
across the Internet

8. Netiquette – guidelines for posting

messages to online services, and
Internet newsgroups.
 Netiquette covers not only rules to
maintain civility in discussions, but also
special guidelines unique to the
electronic nature of forum messages.

9. A Router is a device that forwards data

packets along networks. A router is
connected to at least two networks.
Routers are located at gateways, the
places where two or more networks
connect.