PON is short for Passive Optical Network. It is a point-to-point (P2P) access mode.
Answer : B
PON is Passive Optical Network, but it uses a point-to-multipoint (P2MP) topology, not P2P, per HCSA-Sales-Transmission & Access. P2P dedicates a fiber per user, while PON shares via splitters, making the statement FALSE.
DCI is the abbreviation for Data Center Interconnect.
Answer : A
DCI stands for Data Center Interconnect, a term widely used in the industry and explicitly defined in HCSA-Sales-Transmission & Access materials. It refers to technologies (e.g., Huawei OptiXtrans DC908) that link multiple data centers for high-speed, low-latency data transfer. The statement is accurate, making it TRUE.
Which of the following are pain points of customers?
Answer : B, D
Customer pain points in transmission and access contexts (e.g., DCI, POL) are well-documented in HCSA-Sales-Transmission & Access:
High cost (B): Rising bandwidth and leased line costs are a universal concern across industries.
Difficult O&M (D): Complex operations and maintenance challenge customers, especially in DCI or legacy LANs.
High Availability (A): This is a requirement, not a pain point; customers seek it rather than suffer from it.
Frequent stock transactions (C): A financial sector need, not a general pain point in transmission/access.
Thus, B and D are the verified pain points.
What is the maximum coverage distance in Campus OptiX solution?
Answer : C
The Campus OptiX solution, based on POL and PON technology, leverages fiber optics for long-distance coverage. HCSA-Sales-Transmission & Access documents specify that the maximum coverage distance is 40km, enabled by PON's passive optical distribution network (ODN) and high-power optical modules. This suits large campus scenarios like airports or universities, making C the correct answer.
What is the next generation for Wi-Fi 5?
Answer : A
Wi-Fi 5, based on the 802.11ac standard, is succeeded by Wi-Fi 6 (802.11ax), as per industry standards and HCSA-Sales-Transmission & Access materials. Wi-Fi 6 offers higher throughput, better efficiency, and support for more devices, making it the next generation. 'Wi-Fi X' and 'GWiFi' are not recognized standards or successors, so A is the correct answer.
88T per fiber: Maximum capacity: 88T/fiber vs. 60T/fiber; 6.4T/U vs. 3.6T/U. Huawei has the lowest per-bit cost. Lowest power consumption: 0.13 W/G vs. 0.2 W/G, power consumption is 35% lower than the industry average.
Answer : A
This statement aligns with the Huawei OptiXtrans DC908's key specifications in HCSA-Sales-Transmission & Access documents:
88T/fiber vs. 60T/fiber: DC908 achieves 88 terabits per fiber using Super C+L band, surpassing the industry's 60T/fiber average.
6.4T/U vs. 3.6T/U: It delivers 6.4T per rack unit (U), higher than the industry's 3.6T/U, optimizing space efficiency.
Lowest per-bit cost: High capacity and efficiency reduce the cost per bit, a core DC908 selling point.
Power consumption (0.13 W/G vs. 0.2 W/G): DC908's 0.13 watts per gigabit is 35% lower than the industry's 0.2 W/G, as verified.
The statement is fully accurate, making it TRUE.
DC908 is front air inlet and rear air outlet.
Answer : A
The Huawei OptiXtrans DC908 is designed for data center compatibility, including physical integration with IT racks. HCSA-Sales-Transmission & Access documents specify that the DC908 features a front air inlet and rear air outlet cooling design, aligning with standard data center rack airflow patterns (front-to-back). This ensures efficient thermal management in dense deployments, making the statement TRUE.