Huawei H35-210_V2.5 Exam Questions Instant Access

Question 1

Which of the following statements about the test of the mean optical transmit power of an optical interface is incorrect?

ARepeat the preceding steps to check whether the maximum and minimum values of the mean optical transmit power meet the technical requirements.

BThe optical power meter is calibrated.

CThe fiber connector and the optical connector on the panel of the optical interface board are clean and connected properly.

DConnect one end of the test pigtail to the Rx port on the optical interface board, and connect the other end of the pigtail to the optical power meter.

Answer : D

Mean Optical Transmit Power Testing :

Testing the mean optical transmit power involves measuring the output power of an optical interface using an optical power meter.

Analysis of Options :

Option A : Correct. Repeating measurements ensures accuracy and verifies compliance with technical specifications.

Option B : Correct. Calibration of the optical power meter is essential for accurate measurements.

Option C : Correct. Clean and proper connections prevent signal loss and ensure reliable measurements.

Option D : Incorrect. The test pigtail should be connected to the Tx (transmit) port of the optical interface board, not the Rx (receive) port.

Why D?

Connecting the test pigtail to the Rx port instead of the Tx port is incorrect and would result in no measurable transmit power.

Thus, the correct answer is D .

HCIA Huawei ACCESS Official Documentation , Chapter: Optical Interface Testing.

Optical Power Measurement Procedures by Huawei.

Question 2

If a PON system is considered as a black box, the external interfaces of OLTs and ONU are mainly Ethernet interfaces, and GEM encapsulation and decapsulation are performed inside the PON system.

ATRUE

BFALSE

Answer : A

In a PON system, the OLT (Optical Line Terminal) and ONU (Optical Network Unit) use Ethernet interfaces externally to connect to the service provider's network and end-user devices, respectively. Internally, the PON uses GEM (GPON Encapsulation Method) frames to encapsulate and decapsulate data for transmission over the optical distribution network (ODN).

Question 3

When the IP address lease of a DHCP client reaches a specified point, the DHCP client renews the IP address lease. The number of times for sending renewal packets decreases as the number of times for IP address renewal increases.

ATRUE

BFALSE

Answer : B

Question 4

The pigtail type of the PON optical port is:

ALC

BFC

CSC

DSL

Answer : C

Question 5

The SNMP protocol is at the ( ) layer in the TCP/IP protocol stack?

AApplication layer

BNetwork layer

CTransport layer

DControl layer

Answer : A

SNMP Overview :

SNMP (Simple Network Management Protocol) is used for managing and monitoring network devices.

TCP/IP Protocol Stack Layers :

Application Layer : Protocols that provide services directly to end users or applications (e.g., HTTP, FTP, SMTP).

Transport Layer : Protocols that ensure reliable data transfer (e.g., TCP, UDP).

Network Layer : Protocols that handle packet routing (e.g., IP).

Control Layer : Not a recognized layer in the TCP/IP model.

SNMP Placement :

SNMP operates at the Application Layer of the TCP/IP protocol stack. It uses UDP (User Datagram Protocol) as its transport protocol but resides at the application layer.

Why A?

SNMP is an application-layer protocol designed for network management tasks.

Thus, the correct answer is A .

HCIA Huawei ACCESS Official Documentation , Chapter: SNMP Protocol.

RFC 1157: SNMP Protocol Specification .

Question 6

ADSL G.992.1 (G.dmt) is a technical specification that does not require a signal splitter.

ATRUE

BFALSE

Answer : B

Question 7

Which of the following is not a part of the PON network system?

AOAM

BODN

CONU

DOLT

Answer : A

PON Network Components :

OLT (Optical Line Terminal) : Central office equipment that connects to the core network.

ODN (Optical Distribution Network) : Consists of optical fibers, splitters, and connectors that distribute signals between the OLT and ONUs.

ONU (Optical Network Unit) : End-user equipment that connects to customer devices.

OAM (Operations, Administration, and Maintenance) :

OAM refers to a set of tools and protocols used for managing and maintaining the network. It is not a physical component of the PON system.

Why A?

OAM is a function or process, not a physical part of the PON network system.

Thus, the correct answer is A .

HCIA Huawei ACCESS Official Documentation , Chapter: PON Network Components.

GPON System Architecture by Huawei.

Huawei HCIA-Access V2.5 H35-210_V2.5 Exam Questions