Key details for this exam, checked against the published exam outline
Each question shows the correct answer and an explanation of why it is right
When carrying services, the GEM port needs to map services to the T-CONT units for upstream service scheduling. Each ONU supports multiple T-CONTs, and different types of T-CONTs can be selected for different service types.
Among common ODN products, large square heads, round heads, and small square heads refer to:
SC (Large Square Head):Square connector with a push-pull design.
FC (Round Head):Round connector with a screw-on mechanism.
In the access technology of the access network, which of the following access modes can provide the maximum access bandwidth?
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.
Which one of the following can effectively reduce the number of entries in a routing table?
If the value of the PROTOCOL field in the PPP protocol is 8021, which of the following protocols is used?
PPP Protocol Overview :
PPP (Point-to-Point Protocol) uses the PROTOCOL field in its header to identify the type of encapsulated protocol.
Protocol Field Values :
0x8021 : Indicates IPCP (Internet Protocol Control Protocol) , which is used to negotiate IP-related parameters during PPP session establishment.
0xC021 : Indicates LCP (Link Control Protocol) , which is used for establishing, configuring, and testing the PPP link.
0x002B : Indicates IPX (Internetwork Packet Exchange) .
0x0021 : Indicates IP (Internet Protocol) .
Why A?
The value 0x8021 corresponds to IPCP , making it the correct answer.
Thus, the correct answer is A .
HCIA Huawei ACCESS Official Documentation , Chapter: PPP Protocol.
RFC 1661: PPP Protocol Specification .
Which of the following indicator status indicates that the MA5600T/MA5680T control board is running properly?
The MA5600T/MA5680T is a Huawei Optical Line Terminal (OLT) device used in GPON networks. The status of the control board's indicator lights provides critical information about the device's operational state.
Option A :
Incorrect : If the green light is on and off repeatedly without a specific pattern, it may indicate an unstable or faulty state.
Option B :
Correct : A steady green light indicates that the control board is running properly and is in a normal operating state. This is the expected status for a healthy control board.
Option C :
Incorrect : A blinking pattern of 0.5s on and 0.5s off typically indicates that the control board is in a transitional state, such as booting up or initializing.
Option D :
Incorrect : A rapid blinking pattern of 0.25s on and 0.25s off usually signifies an alarm or error condition.
Thus, the correct answer is B , as a steady green light indicates normal operation.
HCIA Huawei ACCESS Official Documentation , Chapter: OLT Device Indicators.
MA5600T/MA5680T Maintenance Manual by Huawei.
The Ethernet II packet header (without the VLAN tag) contains ( ) bytes?
The Ethernet II frame is the most commonly used Ethernet frame format. It consists of several fields, and its structure is well-defined in networking standards.
Structure of the Ethernet II Header :
Destination MAC Address (6 bytes) : Specifies the MAC address of the intended recipient.
Source MAC Address (6 bytes) : Specifies the MAC address of the sender.
EtherType (2 bytes) : Indicates the protocol encapsulated in the payload (e.g., IPv4, ARP).
Total Size :
The Ethernet II header without a VLAN tag is 14 bytes in size.
If a VLAN tag is added (using IEEE 802.1Q), the header size increases to 18 bytes due to the additional 4-byte VLAN tag.
Why Not Other Options?
32 bytes : This is incorrect because the Ethernet II header is much smaller.
22 bytes : This is incorrect because the header size is fixed at 14 bytes (without VLAN tagging).
18 bytes : This would only apply if VLAN tagging were included, which is not specified in the question.
Thus, the correct answer is 14 bytes .
HCIA Huawei ACCESS Official Documentation , Chapter: Ethernet Frame Structure.
IEEE 802.3 Ethernet Standards .
9 domains from the Huawei H35-210_V2.5 exam outline, with approximate weightings. Every sample question above is tagged with the domain it comes from
For data engineers and analysts, this part of the exam delves into strategies and approaches for handling and examining massive datasets.
For software developers specializing in big data, this section examines the creation of applications that harness big data technologies.
For performance engineers and big data architects, this part of the exam investigates methods to enhance the efficiency and scalability of big data systems and applications.
For security specialists and compliance managers, this domain explores protective measures and regulatory considerations in the field of big data development.
For application developers, this section examines the process, tools, and recommended practices for developing applications on the HarmonyOS platform.
UI/UX designers and front-end developers, this section investigates HarmonyOS user interface elements, layout structures, and core design principles.
For backend developers and database specialists, this section explores data handling techniques, local storage solutions, and database integration within the HarmonyOS ecosystem.
For network engineers and developers, this section examines various networking protocols, API integration methods, and communication strategies in HarmonyOS applications.
For network engineers and developers, this section examines various networking protocols, API integration methods, and communication strategies in HarmonyOS applications.
Common questions about the exam itself
