https://leiethicalhacking.blogspot.com/2019/06/portugal-perfil-falso-no-facebook-nao-e.html

host intrusion detection system (HIDS) used for?

An HIDS is used to monitor potential or suspected intrusions on a system or host

unlike an NIDS it cannot be used to monitor traffic or activity on a network.

it looks for changes to files,
 misuse,
privilege abuse,
alterations to log files,
and other activities depending on the vendor.

LOIC is used for?

The Low Orbit Ion Cannon(LOIC)

is used to perform DoS or DDoS attacks against a victim system.

false negative

no report of an attack even though one is actually taking place.

what is the problem with SMTP about security?

the protocol is unencrypted

provides no protection against sniffing or hijacking

the protocol can be protected

if used with a VPN or similar technology.

false positive?

a report of an attack where one does not exist.

802.11 standards covers security relating to WPA2?

802.11i is the standard concerned

with the design and implementation of WPA2.