Maintenance Technician 2-3 Certification Exam Examples Questions And Answers Solved.

Which fiber optic cable design category typically uses some star topology variation - correct answer Signal distribution What is the ideal way for a broadband cable network designer to plan the replacement of coaxial cable with fiber optic cable to shorten amplifier cascades - correct answer Use the existing coaxial network infrastructure What is an option for broadband cable network to maximize the use of its optical fiber resources? - correct answer Leasing, spare fibers Which of these items should be identified on a route map so that design can provide or not provide special network access - correct answer Parks, schools, shopping centers Which type of map contains node information - correct answer Design map How many meters of slack cables typically use in an aerial installation? - correct answer 15-25 meters What is one example of a stipulation in a franchise agreement that would affect network design - correct answer A 100% fiber-optic network When activating a fiber optic network, which acceptance testing stage includes adjusting attenuation levels for the first time - correct answer During equipment activation What information should always be included in fiber optic network documentation - correct answer Fiber assignments When troubleshooting an outage in an optical network, why would a technician want to refer the networks as built documentation? - correct answer To help determine specific cable lengths Which PON access architecture type replace the APON - correct answer BPON Which type of PON architecture was formed to develop a cost-effective high bandwidth, easy to provision solution for connecting business schools, libraries and customer local area network network to the public Internet - correct answer EPON What about RFoG made broadband cable operators envision, using it to make a seamless transition from the legacy HFC architecture over to a GPON or EPON - correct answer RFoG can operate in parallel with GPON and EPON, independent of the PON communications protocol and data rates What is the core objective of the DOCSIS provisioning of EPON or DPoE access architecture? - correct answer To make the EPON elements appear and operate as DOCSIS elements to the existing DOCSIS-based back office provisioning operations What is one the requirements that have been identified for NGA network architectures - correct answer Shorter distances for transporting light waves What is the maximum data rate the XG-PON (10 GB asymmetric passive optical network) access architecture supports in the upstream - correct answer 2.5 Gbps For a 10G-EPON NGA architecture with a downstream speed of 10 GB. What are the two upstream data rates that are supported - correct answer 1-10 Gbps What is the wavelength allocation for a video distribution or RF overlay in the broadband passive optical network (BPON) access systems - correct answer Between nm Which element of a PON, consist of a downstream, optical transmitter and upstream receiver, and a multiplexer/demultiplexer - correct answer OLT Which wavelength range does the EPON use for its upstream wavelengths - correct answer nm The main elements of the optical transmitter are the electrical interface data, encoder/modulator, laser, and....... - correct answer Optical interface What process must happen before digital modulation can occur in the optical transmitter - correct answer The data must be encoded In networks transporting data rates higher than ____ F-P lasers are considered inadequate - correct answer 2.5 Gbps What is the best way to set up the RF power levels for a QAM carrier? - correct answer Use a spectrum analyzer with a power measurement function and set the vertical markers to each side of the QAM carrier What are the main elements of an optical receiver? - correct answer Demodulator, electrical interface, optical detector, and optical interface When determining whether the optical power into an optical receiver, is within the acceptable, dynamic range if the optical power is too high, but the loss budget agrees with the design what should be done to optimize the optical power - correct answer Install an optical attenuator Typically what is the first step when adjusting an optical receiver - correct answer Turn on the optical receiver Which type of optical amplifier produces no measurable distortion to the modulated light wave - correct answer EDFA Which component of a digital optical network is used to receive digital modulation, light waves, and convert them into electrical signal - correct answer Optical Transponder Which type of optical coupler provides the least amount of insertion loss - correct answer Fused The number of rectifiers used in a DC powerplant design. Depends on what - correct answer The load that is placed on the system What is true of online UPS systems? - correct answer They are recommended for commercial application, such as data centers and telecommunications operations What are the concerns for RFoG and FTTx systems - correct answer How and who will provide AC power to the ONT at the customer premises What is true of offline UPS systems? - correct answer Off-line UPS systems route incoming power directly to connect devices and switch to a battery back up during a power interruption Why are back up AC generators included in many commercial AC, UPS, and DC power systems - correct answer To provide AC power during a prolonged utility power interruption Why is -48 VAC with a positive ground used by the telecommunications industry - correct answer This reverse polarity is a means of mitigating electrolytic corrosion on the outside of plant Which of the following is true of a centralized power node - correct answer It can provide sufficient power for fiber, optic node, including OSP, amplifiers and customer, premises, network, interface devices, and NID for telephony service