The decision regarding the number of optical fibers to install (fiber strand count) in a backbone depends
largely on all of the following EXCEPT:
A. Distance between telecommunications room (TR)
B. Level of multiplexing
C. Physical topology of the cabling system
D. Intended end-user applications
E. Cabling system configuration
正解:A
質問 2:
Which electrical characteristic is displayed with the correct preferred value?
A. Dielectric constant - high value
B. Dissipation factor - low value
C. Dielectric strength - high value
D. Insulation resistance - high value
正解:A
質問 3:
Color codes for cross-connections fields have been used for many years. Which color is used to identify
horizontal cable?
A. Purple
B. Orange
C. Blue
D. Green
E. Brown
正解:C
質問 4:
When designing a backbone distribution system, you will need to include a telecommunications enclosure
(TE). A TE can be defined as a:
A. Facility to store slack copper and fiber cables
B. Location to house the splice transitioning from outdoor to indoor cabling only
C. Point where the backbone cabling interfaces to the horizontal cabling and may be utilized in place of a
traditional Telecommunications Room (TR)
D. Splice point for copper cabling only
E. Location for housing building cross-connect cabling only
正解:C
質問 5:
Which of the following is NOT true about consolidation points?
A. They are not to be used for direct connections to active equipment.
B. The maximum length of cable from the consolidation point (CP) to the outlet varies by media type.
C. They are to be terminated on separate connectors for each individual user.
D. They allow horizontal cables to be extended into work area pathways.
正解:B
質問 6:
Optical fiber all-dielectric cables have an additional advantage over ones containing a steel strength
member. That advantage is:
A. More difficult to damage
B. More resistant to lightning and electrical conduction
C. More resistant to rodent damage
D. Cables are made of a tougher outer PVC jacket
正解:B
質問 7:
The propagation and path loss of radio signals in the target environment can be sampled using:
A. Mesh antennas
B. Radio power meters
C. Directional antenna
D. Propagation software
正解:B
質問 8:
The concept of the "security quandary" is based on providing a balancing act between what two
elements?
A. Risk and threat
B. Asset and isolation
C. Access and isolation
D. Asset and risk
E. Access and cost
正解:C
質問 9:
All of the following are considered market or regional conditions that can impact construction costs
EXCEPT:
A. Other large projects in the area
B. Construction time frame
C. Displacement and relocation
D. Seasonal effects on construction costs
正解:C
Sakamoto -
RCDD-001試験の概要もちゃんとあり、基礎的な内容から書かれています。
試験問題と解説があるので、実際どのような問題が出るのかも分かりやすい。