SBOLC Security Plus Study Guide update , Questions and answers with

SBOLC Security Plus Study Guide ( update), Questions and answers with
Goals of Crypto - ✔✔- Confidentiality (encryption),Integrity
(Hashing),Authentication (Prove yourself), Non-repudiation (can't deny it
happened-digital signatures)
TCP vs UDP - ✔✔- UDP is "best effort" delivery with to nodes on a network.
Little overhead and is often used for streaming audio or video traffic. TCP is
reliable one-to-one connection between two hosts. Uses 3-way handshake
(SYN-SYN ACK- ACK)
Network access control (NAC) - ✔✔- goal is to prevent computers with
suboptimal security from potentially infecting other systems in the network.
Enforces policy.
Quarantine portal - ✔✔- redirects user to a quarantine area where fixes
can be accessed. Usually a web page with hyperlinks to the fixes. Once
necessary software is installed the system is then in compliance.
Captive Portal - ✔✔- Captures or redirects the users initial traffic because
something more is needed from the user, such as a credit card, or user name
and password.