(11)
Processes
Processes
What is Long-Haul Communications?
Bonus (50pts): Provide an example.
Communications over long physical distances e.g. nationwide, global traffic.
Bonus: DoDIN
What is half-duplex communication?
Data moves only one direction at a time, and only one user can talk at a time, which can lead to traffic jams
How does an antenna transmit and receive signals?
By converting radio frequency into electromagnetic waves and vice versa.
What is a malicious code that waits for specific conditions to trigger?
Logic Bomb
what model is used fot trouble shooting a network
the big OSI
What is DISA's method to process and approve networks that connect to DoDIN?
DISA Direct Process.
What is an advanced two-way radio system designed to efficiently manage comms and uses control channels to auto connect users to open radio frequencies as they become available?
Trunked LMR System
'Equal efficiency in a 360-degree coverage, easy to use, but has weaker signals' refers to what, and where is it commonly used?
Omni-directional antennas, often used in wi-fi, GPS, and cell towers.
What does Secure Shell allow you to do?
Allows users to remotely log into, administrate, and execute commands in another computer or server
what are 2 common commands used for trouble shooting
Ping/Echo
Ipconfig
Provide atleast 3 examples of 'Transforms'
Signaling, keying, modulation, multiplexing, and timing.
What is AES?
Advanced Encryption Standard, NIST certified as the only encryption technique for federal LMR systems.
What kind of antenna does a satellite use?
Directional antenna.
What replaced SSL?
TLS
what are some tools used to troubleshoot a layer 1 issue
multimeter
OTDR
Netscout
'Network protocol that uses stratum levels to synchronize clocks' refers to what?
Network Time Protocol (NTP)
Provide an example of an LMR system.
Walkie-talkie.
Daily Double!!! (800 points)
Who is the goat of the UFC?
Anyone but Ilia (Bot)
1.)What does SFTP use?
2.)What Does FTPS use?
1.) SSH
2.)SSL/TTLS
what arte some ways to trouble shoot a OS issue
windows or drivers, defragment disks, high CPU usage, virus scan, power saving mode impact.
Describe each stratum level.
Strat 0: Reference clock itself
Strat 1: Directly attacked and syncs with strat 0
Strat 2: networks to strat 1 as a secondary time server
What is some equipment found in an Enterprise LMR System?
Bonus (100): What is RoIP?
Repeaters, transmission towers, RoIP.
Bonus: Radio over IP
What is a Talkgroup?
Method of logically organizing users into groups that are assigned frequencies dynamically.
What is the difference between Encoding/Decoding and Tunneling?
Tunneling encapsulates packets inside of other ones while encoding and decoding converts data from one form to another. (Ex: Compressing /decompressing video files)
what is a common trouble shootiong method for applications and startup
bonus (500) name a second one
DLL overwritten, File association errors, Invalid boot disk