Unit 1d: IFF Modes 4 And 5

Question 1

What are the IFF modes

Answer 1

Mode 4 and 5

Question 2

What identifies in distinguishes allied forces and oppositional forces

Answer 2

Identify Friend or Foe (IFF)

Question 3

What mode is the first crypto secure positive ID and keys distributed by electronic and paper tape methods

Answer 3

Mode 4

Question 4

What mode is improved crypto secure positive ID and keys are distributed by electronic method only

Answer 4

Mode 5

Question 5

What are the benefits of Mode 5

Answer 5

More efficient, secure, and less labor intensive

Question 6

How many tiers of the Electronic Key Management System (EKMS)

Answer 6

4

Question 7

What tier produces codes and is the FEDS/NSA

Answer 7

Tier 0

Question 8

What tier is tracking and admin and distributes to COMSEC

Answer 8

Tier 1

Question 9

What tier distribute to local users and is the COMSEC Office

Answer 9

Tier 2

Question 10

What tier uses Data Transfer Devices (DTD)

Answer 10

Tier 3

Question 11

How many total keys are there

Answer 11

5

Question 12

What keys are for Modes 4 and 5

Answer 12

TEK, ECU KEK, TrKEK

Question 13

What modes are for Mode 5 Only

Answer 13

Joseki

Question 14

What Joseki is generated by NSA

Answer 14

Joseki A split

Question 15

What Joseki is embedded in the ECU software

Answer 15

Joseki B split

Question 16

What are the two key types

Answer 16

Red - unencrypted

Black - Encrypted

Question 17

What End Cryptographic Units (ECU) type is non-tagged and holds up to 31 days

Answer 17

Type A

Question 18

What ECU type is tagged and holds up to 93 days

Answer 18

Type B

Question 19

How long is a crypto period stored for

Answer 19

24 hrs

Question 20

Keys are synched across DoD to _________

Answer 20

Greenwich Mean time/Zulu time

Question 21

What equipment is used in Type A

Answer 21

APX-123 and UPX-41

Question 22

What equipment is used in Type B

Answer 22

KIV-77 and KIV-78