3 Flashcards
What are the goals of 5g enhancement?
data rate above 1 mbps and support more users
What are the 5 5g enhancements?
Nigeria needs some big money
New Frequency bands
Small cells
Massive MIMO
Bream forming
Network Slicing
What 5g enhancement could not pass through obstacles and gets absorbed by organic materials and features mm waves?
New frequency bands
_____________ strategically places base stations in areas to receive mm wave freq. Used in densely populated areas.
Small cells
____________ adds more antennas on a cell tower. This has what issue?
Massive MIMO
causes massive interference
___________ focuses a signal directly to the receiver to reduce interference
Beam forming
________________ takes a 5g network cell and splitting it to dedicated virtual networks
Network Slicing
2G
Air Interferance:
Radio Access Network:
RAN Antenna:
RAN Controller:
Um
Geran
BTS
BSC
3G:
Air Interferance:
Radio Access Network:
RAN Antenna:
RAN Controller:
Uu
UTRAN
NodeB
RNC
4G:
Air Interferance:
Radio Access Network:
RAN Antenna:
RAN Controller:
LTE-UU
E-UTRAN
eNodeB
eNodeB
5G:
Air Interferance:
Radio Access Network:
RAN Antenna:
RAN Controller:
5G-NR
5G-Ran
gNodeB
gNodeB
_________ is spoofing caller ID/”Hacking voicemail”
Voice mail exploitation
2G/3G eavesdropping
What AS Series encryption includes no encryption and has mandatory support?
A5/0
2G/3G eavesdropping
What AS Series encryption includes:
64 bit encryption, voice only, can be broken by rainbow tables?
A5/1
2G/3G eavesdropping
What AS Series encryption includes:
40 bit encryption; and is the export version sent too other countries
A5/2
2G/3G eavesdropping
What AS Series encryption includes:
128 bit encryption; includes voice and data, replaced the A5/1
A5/3
What Cellular exploit features Snow 3G encryption and downgrade attacks.
What is aLTEr?
4G Eavesdropping
Takes advantage of the lack of protection in the data link layer
____________ attacker sets up their own cell tower and lure victims into connecting to it.
What kind of authentication does 2G,3G,and 4G have?
Rogue base station
2- one way
3,4 - mutual authentication
_____________ provides a complete cellular protocol stack or a mini cell tower
What is its security concern?
femtocell
physical point of access
_________ is an cellular users’ identification which transfers through cellular devices, what is this called for 2G,3G, and 4G?
What is law enforcements machine that does this called?
IMSI Catchers
- 2G/3G - TMSI
-4G - GUTI
_________________ uses a wifi connection into the cellular network instead of a cellular connection. This called also be called __________________. Making it culnerable to WifiMitM includiong vulnerabilites such as ___________, __________, and ____________
Wifi Calling
Unlicensed Mobile Access
Trojan
Rogue AP
ARP cache poisoning
________________ is a suite of protocols used to set up, maintain, and tear down cellular communications on the PTSN.
Signaling System 7
LTE-M
Frequency/channel:
data rate:
capabilities(3)?
1.4MHz
300kbs-1Mpbs
Roaming/mobility
full duplex
low latency
10-15 msec
NB-IOT
Frequency/channel:
data rate:
capabilities(3)?
200 khz
lt 100 kbps up to 250 kbps
No Roaming
Half duplex
High Latency
1.6-10 seconds
_______ is the organization responsible for the global coordination of the RF spectrum
ITU
________ is the United States coordinator of the RF spectrum
within the 2.4 Ghz frequency
channels 1-11 are ____________
channels 12, 13 are _________
there are ___ channels of separation
Within 5Ghz there are _____ overlapping channels going from _____-______
UNII 1,3 __________________
UNII 2, 2E _________________
WIthin 6Ghz there are _____ # of overlapping channels
FCC
full power
low power
5
25
36-165
Do not support DFS
support DFS
59
____________ creates and maintains standards for electronic equipment
IEEE
________________ certify inter-vendor compatibility w/ adherence to the 802.11 standard
Wifi Alliance
Which of these belong to the 2.4 GHz range? What bleonmg to the 5Ghz range?
802.11 (Prime)
802.11a
802.11b
802.11g
802.11n
802.11ac
802.11ax
Pbgnax
802.11 (Prime)
802.11b
802.11g
802.11n
802.11ax
anacax
802.11a
802.11n
802.11ac
802.11ax
What data rates do these belong too?
11, 54, 150, 2, 1,2
2, 11, 54, 150, 1,2
p b g n ax
What data rates do these belong too?
1.2, 54, 150, 867
802.11a
802.11n
802.11ac
802.11ax
