In a Passive Optical LAN (POL), the Optical Distribution Network (ODN) consists entirely of passive

optical components such as splitters, connectors, and fibers. These components do not require

external power, making them fully passive.

The ODN in POL follows Point-to-Multipoint (P2MP) architecture using passive splitters, ensuring

signal distribution without electrical conversion. Since no active components are present in the ODN,

it remains maintenance-free and energy-efficient.

Reference:

HCSA-Sales-Transmission & Access Official Documentation – Section: Passive Optical LAN (POL)

Overview

Huawei Optical Network White Paper – Passive Optical LAN (POL) Architecture

POL in Campus OptiX supports Wi-Fi roaming, Network Access Control (NAC), free mobility, and

Software-Defined Networking (SDN) via ONUs with Wi-Fi 6 and eSight management, per HCSA-Sales-

Transmission & Access. This versatility suits various office scenarios, making the statement TRUE.

Reference: Huawei POL Office Features, HCSA-Sales-Transmission & Access training slides.

The WebGUI (Web-based Graphical User Interface) for Huawei solutions like the OptiXtrans DC908 is

designed for user-friendly management, including single-device scenarios. HCSA-Sales-Transmission

& Access confirms that WebGUI can configure and monitor a standalone device (e.g., DC908), not

just multi-device networks. The statement’s negation is incorrect, making it FALSE.

Reference: Huawei DC908 Management Features, HCSA-Sales-Transmission & Access datasheet.

PON, or Passive Optical Network, is a telecom technology that uses fiber optics and passive

components (e.g., splitters) to deliver broadband access. According to HCSA-Sales-Transmission &

Access documentation, PON operates in a point-to-multipoint (P2MP) topology, where a single

Optical Line Terminal (OLT) at the service provider’s end connects to multiple Optical Network Units

(ONUs) or Optical Network Terminals (ONTs) at customer premises via a shared optical distribution

network (ODN). This distinguishes it from point-to-point (P2P) systems, which dedicate a fiber per

user. The statement accurately describes PON’s definition and architecture, making it TRUE.

Reference: HCSA-Sales-Transmission & Access, PON Technology Overview section.

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.

Reference: Huawei OptiXtrans DC908 Hardware Specifications, HCSA-Sales-Transmission & Access

datasheet.

The DC908 does not explicitly support SCC (System Control Card) 1+1 redundancy, per HCSA-Sales-

Transmission & Access. While it offers hardware reliability, SCC redundancy is more associated with

OLTs (e.g., EA5800), not DCI-focused DC908, making the statement FALSE.

Reference: Huawei DC908 Specs, HCSA-Sales-Transmission & Access datasheet.

In Data Center Interconnect (DCI) scenarios, high-level customers—such as large enterprises, ISPs,

and financial institutions—face significant challenges, as outlined in HCSA-Sales-Transmission &

Access documentation. The two major pain points are:

High costs: DCI traffic grows rapidly (over 50% annually), and bandwidth costs often double every

two years, making cost management a critical issue.

Difficult O&M (Operations & Maintenance): Traditional DCI setups involve complex network planning

and maintenance, often requiring skilled engineers, which increases operational complexity.

Huawei’s OptiXtrans DC908 addresses these with lower per-bit costs (e.g., 88T/fiber capacity) and

simplified O&M (e.g., one-click deployment). The statement aligns with documented customer pain

points, making it TRUE.

Reference: HCSA-Sales-Transmission & Access, DCI Scenarios Pain Points section.

Passive Optical LAN (POL) is an all-optical enterprise networking solution comprising Optical Line

Terminals (OLT) and Optical Network Units (ONU). In office scenarios, Huawei’s Campus OptiX POL

solution allows flexibility in deployment. Official HCSA-Sales-Transmission & Access documents

confirm that OLTs and ONUs can be sold independently based on customer needs, such as upgrading

existing infrastructure or deploying specific components in a phased approach. For example, an office

might procure an OLT to centralize management while adding ONUs later to expand coverage. This

modularity supports tailored solutions, making the statement TRUE.

Reference: Huawei Campus OptiX POL Solution Overview, HCSA-Sales-Transmission & Access training

materials.

For financial customers, DC908’s key features, per HCSA-Sales-Transmission & Access, include:

Commissioning within 8 minutes (C): Critical for rapid deployment in finance.

Double stability (A): Not a specific metric; stability is enhanced but not quantified as "double."

Latency <10 ps (B): Latency is low but not specified as picoseconds (ps); more likely microseconds

(µs).

Thus, C is correct.

Reference: Huawei DC908 for Finance, HCSA-Sales-Transmission & Access training slides.

DCI is critical for industries with high data transfer needs, per HCSA-Sales-Transmission & Access: Finance (A): Requires low-latency, secure interconnects. Large Enterprise (D): Needs scalable data center links. ISP (E): Manages massive traffic between data centers. Government (B) and Education (C): Less focus on DCI; more on campus or access networks. Thus, A, D, and E are correct. Reference: Huawei DCI Target Industries, HCSA-Sales-Transmission & Access training slides.