Domain 4 Flashcards
Network Security
A network is
simply two or more
computers linked together to share
data, information or resources
A local area network (LAN) is
a network
typically spanning a single floor or
building. This is commonly a limited
geographical area
Wide area network (WAN) is
the term
usually assigned to the long-distance
connections between geographically
remote networks
Hubs are
used to connect multiple devices
in a network. They are wired devices and
are not as smart as switches or routers
A firewall is
a network device
used to filter traffic.
Switches are
wired devices
that know the addresses of the devices connected to them and route traffic to that port/device rather than retransmitting to all
devices. Switches are smarter than hubs, but not as smart as routers
A server is
a computer that provides
information to other computers on a
network
Routers are used to
control traffic flow on
networks and are often used to connect
similar networks and control traffic low
between them. They determine the most efficient “route” for the traffic to flow across the network
Endpoints are
the ends of a network
communication link. One end is often at a
server where a resource resides, and the other end is often a client making a request to use a network resource
Ethernet is
a standard
that defines wired connections of
networked devices. This standard defines the way data is
formatted over the wire to ensure
disparate devices can communicate
over the same cables
Every network device is assigned a
a Media
Access Control (MAC) address
What connects all devices behind the firewall in a small business network?
What is a potential drawback associated with the freedom provided by wireless networking?
Additional vulnerabilities
What does micro-segmentation aid in protecting against?
Polymorphic tool sets
An intrusion occurs
when an attacker
is able to bypass or thwart security
mechanisms and gain access to an organization’s resources
