RCDD 試験問題を無料オンラインアクセス

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.Cabling system configuration
• D.Physical topology of the cabling system
• E.Intended end-user applications

The maximum vertical rise is the distance over which the cable is vertically self-supporting. This distance is a function of the weight of the cable and the:

• A.Type of fire stop used in the riser
• B.Sheath fire rating
• C.Cable maximum tensile rating
• D.Number of strands of fiber in the cable
• E.Type of hangers used in the riser

Which of the following is NOT considered acceptable in an information technology system (ITS) conduit design and installation?

• A.Avoid routing conduit over or adjacent to heat sources
• B.Contains no continuous sections longer than 30 m (100 ft)
• C.Uses flexible conduit to access wall outlets
• D.Bonded to ground on one or both ends in accordance with national or local code requirements
• E.Will withstand the environment to which they were exposed

If you have a data center where the entire infrastructure must be completely shutdown on an annual basis to perform preventative maintenance and repair work, what tier level would this represent?

• A.Tier III
• B.Tier IV
• C.Tier II
• D.Tier I

When placing an optical fiber cable in the horizontal optical fiber cabling subsystem, what is the MAXIMUM number of splices that can be used?

• A.3
• B.4
• C.2
• D.5
• E.1