Acronyms

Question 1

SCADA

Answer 1

supervisory control and data acquisition system (large scale multi site industrial control systems)

Question 2

IDS

Answer 2

intrusion detection system (alerts if it finds an attack)

Question 3

IPS

Answer 3

intrusion prevention system
(is able to stop an attack)

Question 4

PBX

Answer 4

private branch exchange (phone switch) connect all phones to this and it connects to network

now we use VoIP PBX

Question 5

RIP

Answer 5

routing information protocol (distance vector routing protocol)(uses hop count and gives a max hop count)

Question 6

EIGRP

Answer 6

enhanced interior gateway routing protocol (distance vector routing protocol)(cisco only)

Question 7

OSPF

Answer 7

open shortest path first (link state routing protocol)

Question 8

BGP

Answer 8

border gateway protocol (hybrid dynamic routing)(exchanges routing information from a system to the next)

Question 9

SOHO LAN

Answer 9

small office home office

Question 10

CSMA/CD (half duplex)

Answer 10

CS- carrier sense (whenever you connect to the network the ethernet adapter needs to identify its connected)
MA-multiple access (many different devices can connect)
CD- collision detection

Question 11

ARP

Answer 11

address resolution protocol (IPv4) (reches out to an IP address and responds with MAC address)

Question 12

NDP

Answer 12

neighbor discovery protocol (IPv6)

Question 13

SLAAC

Answer 13

stateless address configuration (IPv6)(automatically configures IP address without DHCP server)

Question 14

DAD

Answer 14

duplicate address detection

Question 15

POE

Answer 15

IEEE 802.3af (15.4 watts of DC power max current of 350 mA)

Question 16

POE+

Answer 16

IEEE 802.3at (25.5 Watts of DC power, max current 600mA)

Question 17

RSTP (802.1w)

Answer 17

rapid spanning tree protocol (decreases down time if severed to 6 seconds from 30-50)

Question 18

STP (802.1D)

Answer 18

spanning tree protocol(prevents layer 2 loopbacks)

Question 19

LAG/ port bonding

Answer 19

link aggregation (multiple interfaces acts like one big interface)

Question 20

LACP

Answer 20

link aggregation control protocol (management of the LAG)

Question 21

MDI

Answer 21

media dependent interface (network interface card)

Question 22

MDI-X

Answer 22

media dependent interface crossover (switch)

Question 23

MIMO

Answer 23

multiple input multiple output

Question 24

MU-MIMO

Answer 24

multi user MIMO

Question 25

OFDMA

Answer 25

orthogonal frequency division multiple access (802.11ax)

Question 26

IBSS

Answer 26

independent basic service set
two devices communicate using 802.11

Question 27

SSID

Answer 27

service set identifier (wireless network name)

Question 28

BSSIS

Answer 28

basic service set identifier (physical address of an access point)

Question 29

ESSID

Answer 29

extended service set identifier (network name shared across access points)

Question 30

WPA

Answer 30

Wifi protected access

Question 31

RC4 and TKIP (used in WPA)

Answer 31

TKIP- temporal key integrity protocol
larger initialization vector and encrypted hash
every packet had a 182 bit key

Question 32

GCMP

Answer 32

used in WPA3 (encrypts data and a message integrity check)

Question 33

PSK

Answer 33

pre shared key

Question 34

GSM

Answer 34

global system for mobile communications (2G)

Question 35

CDMA

Answer 35

Code division multiple access (2G)

Question 36

LTE

Answer 36

long term evolution

Question 37

IS-IS

Answer 37

intermediate system to intermediate system
link state routing protocol
used in large ISP networks because it can support more routers