Free Practice Questions for Huawei H19-301_V4.0 Exam

M-LAG (Multi-Chassis Link Aggregation Group) is a technology that implements link aggregation across two or more independent physical devices (i.e., switches).

It enables downstream devices (such as servers or switches) to connect to two upstream devices as if they were one logical device.

This allows for:

Active-active forwarding (traffic load balancing)

Device-level redundancy (if one upstream device fails, the other continues forwarding traffic)

Eth-Trunk refers to link aggregation but generally within a single device.

Stack creates a logical switch from multiple physical switches, but it does not address inter-device aggregation in the same distributed manner as M-LAG.

LLDP (Link Layer Discovery Protocol) is a Layer 2 protocol for device discovery and has no role in link aggregation.

Huawei’sNetEngine 8000 X seriesrouters offer these major highlights:

A. Support for large-scale L2/L3 services: Ideal for both enterprise and carrier networks

B. High-density 100GE ports: Suitable for high-bandwidth core and metro scenarios

C. Multi-service 5-in-1 design: SR, BNG, CGN, IPsec, and Security Architecture (SA)

E. Multi-platform convergence: Deployed in roles such as Provider Edge, Internet Gateway (IGW), and DC-Gateway (DC-GW)

D. 19.2T per slotis a specification forcore DC switches, not typically associated with theNetEngine 8000 X series, which has lower per-slot capacity.

Huawei's Free Mobility Solution decouples user identity from IP address and physical location.

Regardless of where a user accesses the campus network (wired or wireless), the same network access policies (such as ACLs, QoS, VLAN assignments) are dynamically applied based on the user identity.

Administrators only need to define access policies between user groups and server resources based on logical relationships (e.g., HR can access payroll servers) without worrying about IP addressing or user location.

This mechanism uses technologies like VXLAN-based campus network combined with policy association via iMaster NCE-Campus.

Huawei’sintelligent computing network, used to support large-scale AI model training, usesultra-broadband 400Gand is primarily based onClos networkingfor high-speed, non-blocking traffic:

A. Two-layer Clos networking of modular switches: Enables high-density east-west traffic.

C. Two-layer Clos networking of modular and fixed switches: Offers cost-effective scaling and flexibility.

B. Fixed-only ClosandD. Three-layer modulartopologies arenot typically usedin Huawei's AI-ready designs due to limited scalability or inefficiency in AI workload patterns.

MAC address authentication (also known as MAC bypass authentication) is typically used for non-intelligent endpoints such as printers, IP phones, and IoT devices that cannot run client software or access a portal for login.

The authentication process is completed by identifying the device’s MAC address and mapping it to predefined policies in the NAC system.

It does not require client installation or human interaction — making it ideal for “dumb terminals.”

By contrast, 802.1X and portal authentication require software clients or web-based logins and are designed for user-driven authentication.

The Huawei NetEngine AR8700-8 is a high-performance, high-reliability converged gateway designed for complex WAN edge scenarios such as:

Enterprise headquarters

Financial institutions or headquarters

Large campuses

It provides high forwarding performance, integrated SD-WAN capabilities, intelligent traffic steering, application identification, and security features (e.g., built-in firewall, IPS, etc.).

Refueling and retail headquarters typically require smaller, more compact edge devices (such as AR600 or AR6100 series), rather than a full-scale high-performance router like the AR8700.

Huawei's six comprehensive border security protection capabilities for SD-WAN or converged gateway routers typically include:

Built-in Firewall – Provides basic packet filtering and security zoning.

Remote URL Filtering – Uses cloud-based services to filter harmful websites.

Antivirus – Detects and blocks malicious files.

IPS (Intrusion Prevention System) – Detects and blocks known threats and attack signatures.

Application-level ACL – Allows granular control of applications beyond Layer 4 (e.g., blocking TikTok, WhatsApp, etc.).

Data leakage prevention (DLP) and behavioral analytics may also be included depending on the security license.

However, "Data encryption" is a broader category not specifically named among the six security protection items in Huawei's SD-WAN documentation. Encryption (e.g., IPsec VPN) is used for secure tunnels but is not listed as one of the six application-layer protections.

On theProduct Detailstab inSCT, users can typically:

View key featuresof the product

See product images

Check lifecycle status(e.g., GA, EOM, EOS)

However,integration services (such as installation support or bundled services)are not visible on theProduct Details tab. These are accessed insolution or service configuration sectionsof SCT.

Huawei’sHiSecEngine firewallshave achievedrecognition in the Gartner Magic Quadrant for Network Firewalls, butnot for 12 consecutive years. Huawei’s presence in this quadrant ismore recent, with consistent recognition over the past few years, particularly following the rebranding to HiSecEngine and performance improvements. The "12 consecutive years" claim is inaccurate per Gartner reports.

In aWAC (Wireless Access Controller) + Fit AParchitecture:

A, B, and Care accurate descriptions.

D is false: The AC (WAC) and Fit APsdo not use SNMP for communication. Instead, they communicate usingCAPWAP (Control And Provisioning of Wireless Access Points)protocol, which supports control, management, and data encapsulation between ACs and APs.

SNMPis used for network management and monitoring but isnot the protocol for AC-to-AP communicationin WLAN scenarios.