Huawei H35-210_V2.5 Exam Dumps

GPON Overview :

GPON (Gigabit Passive Optical Network) is a fiber-optic access technology standardized by the ITU-T (International Telecommunication Union) under the G.984.x series of standards.

It is not based on Ethernet but uses its own framing structure called GEM (GPON Encapsulation Method) for data transmission.

IEEE 802.3ah :

IEEE 802.3ah is the standard for EPON (Ethernet Passive Optical Network) , which is a competing technology to GPON.

EPON uses Ethernet frames for data transmission and is standardized by the IEEE, unlike GPON, which is standardized by ITU-T.

Why FALSE?

The statement incorrectly associates GPON with IEEE 802.3ah, which applies to EPON, not GPON.

Thus, the correct answer is B .

HCIA Huawei ACCESS Official Documentation , Chapter: GPON vs. EPON.

ITU-T G.984.x Standards for GPON .

GPON (Gigabit Passive Optical Network) is a fiber-based access technology that supports downstream bandwidth up to 2.5 Gbps and upstream up to 1.25 Gbps, far exceeding the bandwidth capabilities of DSL technologies. ADSL (up to 8 Mbps), ADSL2+ (up to 24 Mbps), and VDSL (up to 100 Mbps over short distances) are copper-based technologies with significantly lower maximum bandwidth compared to GPON.

ONU States Overview :

The display ont info command provides detailed information about the status of an ONU (Optical Network Unit), including its operational state.

Key States :

Online : Indicates that the ONU is registered, authenticated, and actively communicating with the OLT. This is the desired state for normal operation.

Active : Refers to the ONU being powered on but not necessarily fully registered or authenticated.

Match : Indicates that the ONU configuration matches the OLT's expected configuration, but this does not guarantee online status.

Offline : Indicates that the ONU is not registered or communicating with the OLT.

Why A?

The Online state explicitly confirms that the ONU is registered, authenticated, and functioning properly within the network.

Thus, the correct answer is A .

HCIA Huawei ACCESS Official Documentation , Chapter: ONU Management.

OLT Command Reference Guide by Huawei.

SNMP Trap Source Address :

The trap source address is the IP address used by the device to send SNMP traps to the NMS (Network Management System).

Configuration Options :

Option A : Setting the trap source address to 127.0.0.1 (localhost) is incorrect because it is not routable and cannot be used for communication with the NMS.

Option B : Using the loopback address is possible but not recommended unless the NMS is explicitly configured to accept traps from the loopback address.

Option C : Setting the trap source address to the same address used by the NMS to add the device ensures proper communication and alignment between the device and NMS.

Option D : Incorrect because not all options are valid.

Why C?

Configuring the trap source address to match the address used by the NMS ensures that the NMS can correctly identify and process traps from the device.

Thus, the correct answer is C .

HCIA Huawei ACCESS Official Documentation , Chapter: SNMP Configuration.

RFC 3411: SNMP Framework .