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CompTIA A+
Networking
Definitions
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Created by
NicoNii
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Cards (18)
LAN
Local area network
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WAN
Wide area network
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MAN
Metropolitan
area
network
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PAN
Personal area network
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SAN
Storage area network
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WLAN
Wireless local area network
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Network Address Translation (NAT)
Modifying
IP address
as it crosses a
router
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Port
forwarding
Forwards outside
network
port to internal
IP
address and port
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Switch
Connect
computers in
LAN
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Router
Connects
≥2 LANs
to the
Internet
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Firewall
Safeguards
computers
and networks against
unauthorized
access
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IDS
Intrusion detection system
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IPS
Intrusion
prevention system
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UTM
Unified threat management
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Classless Inter-Domain Routing (CIDR)
CIDR IPv4 addresses have a prefix; e.g., "/24" in "10.150.23.58/24" denotes a
255.255.255.0
subnet mask
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IPv4 address
Has a prefix, e.g. "/24" denotes a
255.255.255.0
subnet mask
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IPv6 address
128-bit
hexadecimal number, e.g.
2001
:7120:0000:8001:0000:0000:0000:1F10
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IPv6 loopback
::1 (unicast)
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