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Huawei H35-210_V2.5 Practice Test - Questions Answers, Page 3
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Question 21
Which one of the following protection schemes can protect branch fibers?
GPON Type B single-homing protection
GPON Type B dual-homing protection
GPON Type A protection
GPON Type C protection
Let us analyze each protection scheme:
Type A Protection :
Protects only the trunk fiber (between the OLT and the splitter).
Does not protect branch fibers.
Type B Single-Homing Protection :
Protects the trunk fiber but does not extend protection to branch fibers.
Type B Dual-Homing Protection :
Similar to Type B single-homing but uses two OLTs for redundancy. Still does not protect branch fibers.
Type C Protection :
Provides end-to-end protection , covering both the trunk and branch fibers.
Uses redundant fibers and splitters to ensure continuity in case of failures in either the trunk or branch fibers.
Thus, the correct answer is D , as Type C protection is the only scheme that protects branch fibers.
HCIA Huawei ACCESS Official Documentation , Chapter: GPON Protection Mechanisms.
GPON Redundancy and Protection Schemes by Huawei.
Question 22
GPON is an Ethernet-based passive optical access technology that complies with IEEE 802.3ah.
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Question 23
According to the ITU-T G.984.X series standards, the downstream transmission wavelength of the GPON network is ( ) nm.
Question 24
In the downstream direction of the GPON, all ONUs receive the same data because the broadcast mode is adopted. In the upstream direction, because the same optical splitter is used, the data of a branch fiber can also be received by another branch fiber.
Question 25
Which of the following is not a part of the PON network system?
Question 26
In a GPON network, DBA has the following functions:
Question 27
Which of the following is the downstream wavelength of XGS-PON?
Question 28
Compared with GPON, XGS-PON can cover more users and provide higher bandwidth without changing the ODN network architecture.
Question 29
Which of the following statements are incorrect ?
Question 30
Which of the following statements about the use of the ADSL interleave mode are correct?
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