Volume 3 Flashcards
What cabling is the most commonly used?
Unshielded twisted pair (UTP)
What condition occurs when a signal is induced into one circuit from another?
Crosstalk
Which category (Cat) of cable can support data rates up to 100 Mbps?
A. Cat 3
B. Cat 5
C. Cat 6
D. Cat 5E
B. Cat 5
Which principle is not addressed in the ANSI/TIA/EIA–568–B standard?
A. Connector and pin assignment
B. Subsystems of structured cabling
C. Installation methods and practices
D. Recommended wireless topology and distances
D. Recommended wireless topology and distances
Which principle is not addressed in the ANSI/TIA/EIA-568-B standard?
A. Minimum requirements for telecommunications cabling
B. Life span of a telecommunications cabling system
C. Connecting hardware performance specifications
D. Color of the cable
D. Color of the cable
Which TIA/EIA parameter test is a measure of the decrease of signal strength as he travels down the media?
Insertion loss
Which TIA/EIA parameter test is a measure of the unwanted signal coupling from a transmitter at the near-end into a neighboring (non-energized) pair measured at the near-end?
Near-end Crosstalk (NEXT)
Which parameter test is a measure of the degree of impedance mismatch between two impedances?
Return loss
Which subsystem of the ANSI/TIA/EIA-568-B structured cabling system provides the point at which outdoor cabling interfaces with the the intrabuilding backbone cabling?
Entrance facility
What cabling system subsystem provides any or all of the functions of a telecommunications room?
Equipment room
Which subsystem of the ANSI/TIA/EIA-568-B structured cabling can be used for connections between floors?
Backbone cabling
Which subsystem of the ANSI/TIA/EIA-568-B structured cabling can be used to interconnect buildings?
Backbone cabling
Which subsystem of the ANSI/TIA/EIA-568-B structured cabling extends from the telecommunications room to the work area telecommunications information outlets?
Horizontal cabling
Which subsystem of the ANSI/TIA/EIA-568-B structured cabling recognizes multimode cable?
Horizontal cabling
The work area of the ANSI/TIA/EIA-568-B structured cabling system consists of all except which components?
A. Patch cables
B. Adapters
C. Patch panels
D. Station equipment
C. Patch panels
Which ANSI/TIA/EIA standard defines labeling cables and patch panels?
606-A
What Air Force systems security instruction (AFSSI) directs implementation of protected distribution systems?
7703
Which method is not a means for secure telecommunications?
A. Using Defense Courier service
B. Using protected distribution system
C. Using communications security equipment
D. Using intrusion detection optical communications system
A. Using Defense Courier service
In the RED/BLACK concept, what type of traffic do RED lines carry?
Unencrypted classified
The RED/BLACK concept has which two parts?
Physical separation and electrical separation
TEMPEST is
An unclassified term and a US Government code word that identifies a classified set of standards
What is the purpose of the TEMPEST program?
Reduce the chances of radiation of electrical impulses
What is the TEMPEST program in the Air Force called?
Emission security
What area is described as the complete building or facility area under direct physical control within which unauthorized persons are denied unrestricted access and are either escorted by authorized persons or are under continuous physical or electronic surveillance?
Controlled Access Area (CAA)
Protected distribution systems (PDS) require which scheduled inspections?
Line route inspections
Protected distribution systems (PDS) events such as alarms and inspections are recorded where?
Protected distribution system (PDS) log
A line route inspection of the protected distribution system (PDS) consists of a close visual inspection that must include the
Total surface
When using a Secure Terminal Equipment (STE), what is encrypted?
The digital signal
What is the difference between data encryption and voice encryption?
In data, the encryption is handled by a separate device
What components are used in both encryption and decryption?
Algorithm and key
What are the two basic types of computer cryptology?
Symmetric-secret key system and asymmetric-public key system
Which cryptology system has a disadvantage of using more processing power and time?
Asymmetric
Which authorities are trusted entities that issue certificates?
Certification Authorities (CA)
What infrastructure is a set of hardware, software, policies and procedures used to create, manage, store, distribute and revoke digital certificates?
Public Key Infrastructure (PKI)