[Jun-2026] The Best HCIP-Access Study Guide for the H35-211_V2.5 Exam
H35-211_V2.5 certification guide Q&A from Training Expert Actualtests4sure
NEW QUESTION # 14
During POL planning and design, device naming rules need to be set.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION # 15
According to the NGN architecture, drag the following devices to the corresponding layers. (Score only when all the answers are correct.)
Answer:
Explanation:
Explanation:
Drag & Drop Answer (NGN layers # devices):
Network control layer # Softswitch
Service management layer # OSS system
Edge access layer # MA5800
Core switching layer # Core router
Why:
Softswitch handles call/session control # control layer.
OSS provides O&M/service management # service management layer.
MA5800 is an OLT/access device # edge access layer.
Core router provides backbone forwarding # core switching layer.
NEW QUESTION # 16
Type B protection provides redundant protection for both OLT PON ports and backbone fibers when OLT or OLT PON If the port or trunk fiber fails, manually switch to another - luguang.
- A. True
- B. False
Answer: B
NEW QUESTION # 17
(Radio) When configuring multicast services on MA5600T/MA5680T, the programs of multicast VLANs are statically configured. Which of the following must be configured, otherwise the multicast programs may not be able to be watched?
- A. igmp profile
- B. igmp program
- C. igmp priority
- D. igmp preview
Answer: B
Explanation:
On Huawei OLTs (e.g., MA5600T/MA5680T), deploying IPTV/multicast commonly uses a program list (channel list) to map program numbers to multicast group addresses-this is configured with igmp program.
When programs are statically configured under the multicast VLAN, the program definitions themselves are mandatory; without them, set-top boxes cannot select (zap to) channels by program number/address mapping and the OLT cannot correctly forward the requested multicast streams.
NEW QUESTION # 18
Huawei OLT supports device diagnosis based on service flows. Which of the following statements is incorrect?
- A. Only packet headers are captured for data packets, and entire packets are captured for protocol packets.
- B. The number or duration for captured packets can be specified.
- C. Service flow packet capturing is configured in the global configuration view.
- D. You need to set the information about the backup server.
Answer: D
NEW QUESTION # 19
(Radio) follow the multicast IP address 227. The correct multicast MAC address corresponding to 120.1.32 is
- A. 01-00-5e-78-01-20
- B. 01-00-5e-78-01-32
- C. 01-00-5e-14-01-32
- D. 01-00-5e-14-01-20
Answer: A
NEW QUESTION # 20
(Single) A total of 100 multicast users on OLT are watching 20 multicast programs, assuming that each
multicast program occupies 2M bandwidth, then how much multicast traffic is currently on the OLT upstream
port
- A. 50M
- B. 40M
- C. 200M
- D. 100M
Answer: B
NEW QUESTION # 21
(Radio) Which of the following options can improve the service experience of multicast users when switching
channels (switching time is shorter)
- A. When adding a multicast program, the prejoin feature is disabled
- B. When you add a multicast user, enable the preview feature
- C. Enables the Quick Leave feature when adding a multicast user
- D. Use group addresses with small values
Answer: B
NEW QUESTION # 22
When the DHCP Option 82 function is enabled globally and in the VLAN service profile and the port/service- port is configured to allow user-side DHCP packets to carry Option 82, what is the processing policy if a user- side DHCP packet already containing Option 82 is received?
- A. The access device strips the Option 82 from the user-side DHCP packet and adds the local user information.
- B. The access device discards the user-side DHCP packet.
- C. The access device strips the Option 82 information from the user-side DHCP packet and forwards the packet.
- D. The access device directly forwards the user-side DHCP packet without any processing.
Answer: A
Explanation:
In Huawei access network devices (such as MA5800, EA5800, and SmartAX series), the DHCP Option 82 (Relay Agent Information Option) feature is used to identify the source location of DHCP requests coming from users connected to access ports.
This helps the DHCP server assign IP addresses based on access topology information, such as slot, port, and VLAN IDs.
When Option 82 is enabled globally and within the VLAN service profile, and the port/service-port is configured to allow user-side packets to carry Option 82, the device processes incoming DHCP requests as follows:
* If a user-side DHCP packet does not contain Option 82:# The device automatically adds local Option
82 information (e.g., circuit ID, remote ID) before forwarding it to the DHCP server.
* If a user-side DHCP packet already contains Option 82:# The device removes (strips) the existing Option 82 field to prevent spoofing or inconsistent location data.# Then it adds its own local Option 82 information (accurate relay agent data based on the device's configuration).# The modified packet is then forwarded to the DHCP server.
This ensures that only trusted network-side Option 82 data is passed along, maintaining accurate user-location binding for IP address management and security.
Therefore, the correct behavior is:
The access device strips the Option 82 field from the user packet and adds its own local Option 82 information.
References (Aligned with HCIP-Access V2.5 and Huawei Technical Documents):
* HCIP-Access V2.5 Study Guide - "Huawei Campus Network Overview" Chapter, Section: DHCP Relay and Option 82 Mechanism
* Huawei MA5800/EA5800 Configuration Guide - IP Service # DHCP Relay and Option 82 Configuration
* Huawei Enterprise Networking Product Documentation: "Understanding DHCP Option 82 Processing"
* Huawei Access Network Feature Guide, Section: Processing Policies of DHCP Packets with Option 82
NEW QUESTION # 23
The number of users under the OLT can also determine whether the VLA is single-layer or dual-layer VLA. Single-layer VLANs can be used when the number of users is small, and dual-layer VLANs must be used when the need to distinguish services and the number of users is second to ().
- A. 4K
- B. 1K
- C. 2K
- D. CS
Answer: A
NEW QUESTION # 24
(Radio) When deploying GPON Type C single attribution protection, the following description is correct.
- A. When the olt uplink fails, a protection reversal can be triggered
- B. Two ports protected by the OLT side cannot send and receive data at the same time
- C. The branch fiber breaks, and the state of the OLT's work port becomes standbY
- D. The service configuration of ONU access is completely identical to the configuration before protection
Answer: B
NEW QUESTION # 25
(Multi-select) Network Management U2000 adds line templates to realize the mapping of user traffic flows to
GEM PORTS, including mapping modes(Radio)
- A. MAC
- B. 802.IP
- C. PORT
- D. vlan
Answer: B,C,D
NEW QUESTION # 26
Which of the following multicast protocols is directly associated with the hosts? Specifically, routers running the protocol manage the joining and leaving of hosts in a multicast group and send multicast data to the hosts by querying the multicast forwarding table.
- A. PIM-DM
- B. PIM-SM
- C. MSDP
- D. IGMP
Answer: D
NEW QUESTION # 27
The number of users under the OLT can also determine whether the VLAN is single-layer or dual-layer.
Single-layer VLANs can be used when the number of users is small; dual-layer VLANs must be used when services need to be distinguished and the number of users is close to ( ).
- A. 4K
- B. 1K
- C. 2K
- D. CS
Answer: A
Explanation:
Ethernet VLAN identifiers provide a practical limit of about 4K per broadcast domain. As user counts and services grow toward this boundary, Huawei recommends dual-layer VLAN (QinQ) to extend scale and maintain service isolation. Hence the planning threshold is ~4K.
References: HCIP-Access V2.5 Study Guide (VLAN capacity limits and hierarchical VLAN deployment guidance).
NEW QUESTION # 28
(Single) A total of 100 multicast users on OLT are watching 20 multicast programs, assuming that each multicast program occupies 2M bandwidth, then how much multicast traffic is currently on the OLT upstream port
- A. 50M
- B. 40M
- C. 200M
- D. 100M
Answer: B
NEW QUESTION # 29
During troubleshooting, you can obtain multiple requests and response messages in a session by capturing packets. Which of the following options can be used to confirm the mapping between requests and response packets?
- A. Tag
- B. From
- C. Branch ID
- D. CSeq
Answer: D
Explanation:
In SIP message correlation, a response matches a request using the CSeq header (method and sequence number) together with the dialog identifiers (Call-ID, From/To with tags). Among the options, CSeq is the direct, standard field used to pair a specific request with its corresponding response within the same dialog.
References: HCIP-Access V2.5 (SIP message structure and troubleshooting: CSeq-based mapping of requests
/responses).
NEW QUESTION # 30
After anti-DoS attack is configured, the system periodically checks all user ports on the board. If the system detects attacks for multiple consecutive times, the system adds the corresponding port to the blacklist and waits for a random period before a new round of detection to determine whether to remove the port from the blacklist.
- A. TRUE
- B. FALSE
Answer: A
Explanation:
Huawei anti-DoS on access boards performs periodic detection. Ports with consecutive detections of abnormal traffic are placed into a blacklist/quarantine state. The system then applies a random back-off interval before re-detecting; if no further anomalies are found, the port can be automatically removed from the blacklist.
References: HCIP-Access V2.5 Study Guide - Security hardening on access devices (DoS protection, blacklist strategy, periodic detection).
NEW QUESTION # 31
(Multi-select) esight is a network management software positioned in the enterprise network scenario, which can view the details of onu devices, including the following information?
- A. The optical module transmits power
- B. speed
- C. UNT port information
- D. Optical module temperature
Answer: A,B,C,D
NEW QUESTION # 32
......
The Best Huawei H35-211_V2.5 Study Guides and Dumps of 2026: https://surepass.actualtests4sure.com/H35-211_V2.5-practice-quiz.html
