H19-338 Sample Questions Answers

next-generation NetEngine AR routers are intelligent edge routers that provide comprehensive services for enterprises, such as WAN access, SD-WAN, VPN, voice, video, security, cloud interconnection, and IoT . They have several strengths that differentiate them from other products in the market, such as:

• Incorporating an industry-leading CPU+NP architecture, providing industry-leading L3 to L7 full-service efficient processing. The CPU+NP architecture combines the advantages of both CPU-based general-purpose processing and NP-based hardware acceleration, enabling high-performance processing of various services at different layers .
• Incorporating iPath (application-based intelligent traffic steering & optimization) and A-FEC {no frame freezing or artifacts even at a 20% packet loss rate). iPath is a technology that intelligently steers traffic based on application types, quality requirements, link conditions, and policies, optimizing the user experience and resource utilization . A-FEC is a technology that enhances the error correction capability of video streams, ensuring smooth video transmission even under high packet loss scenarios .
• Offering three times the industry average performance based on x86. The next-generation NetEngine AR routers use x86 processors that deliver high computing power and scalability, enabling them to support more services and users with lower power consumption .
• Featuring multi-mode ZTP on-demand network orchestration; real-time fault alarms and 45+ visualized reports. The next-generation NetEngine AR routers support zero-touch provisioning (ZTP), which simplifies the network deployment and management process by automatically discovering, registering, configuring, and upgrading devices . They also support real-time fault alarms and 45+ visualized reports that provide comprehensive network monitoring and analysis capabilities .

AirEngine 6760R-51E is a Wi-Fi 6 AP designed for rail transit scenarios. It supports 8x8 MU-MIMO and eight spatial streams, achieving a rate of up to 5.95 Gbit/s2. AirEngine 6761-21T is a Wi-Fi 6 AP designed for indoor scenarios such as offices and classrooms. AirEngine 6760-X1E is a Wi-Fi 6 AP designed for indoor scenarios such as hotels and shopping malls. AirEngine 6760-51EI is a Wi-Fi 6 AP designed for indoor scenarios such as stadiums and exhibition halls.

NE8000 M14 cannot be deployed in a 300 mm-deep cabinet. According to the Huawei NetEngine 8000 M14 Routers Support Guide1, the NE8000 M14 requires a cabinet with a depth of at least 800 mm.

CloudEngine S5732-H series multi-GE switches do not deliver a switching performance of 1760 Gbit/s. According to the CloudEngine S5732-H Series Multi-GE Switches Datasheet, CloudEngine S5732-H series multi-GE switches deliver a switching performance of up to 336 Gbit/s.

iFIT is a technology that can provide real-time service quality visualization and minutes-level fault demarcation. It can collect and analyze network traffic data, identify network problems, and optimize network performance. iFIT uses Telemetry to collect data from network devices, and uses Network Cloud Engine (NCE) to process and display the data. iFIT can also use In-band Network Telemetry (INT) to embed data into packets for more accurate measurement.

WPA3 is a new security protocol for wireless networks that provides enhanced security and privacy features compared to WPA2 . One of the advantages of WPA3 is that it eliminates the potential for dictionary attacks, which are a type of brute-force attack that tries to guess passwords by using a list of common words or phrases . WPA3 uses a more robust authentication mechanism called Simultaneous Authentication of Equals (SAE), which prevents offline password cracking attempts . The other statements are correct advantages of WPA3. WPA3 can encrypt data on open SSIDs using Opportunistic Wireless Encryption (OWE), which creates a unique encryption key for each user without requiring any credentials . WPA3 also meets the NSA/SuiteB security requirements of governments and banks, which specify the use of strong encryption algorithms such as AES-256 and Elliptic Curve Cryptography (ECC) . WPA3 also ensures that even if an attacker obtains the intermediate key during the handshake process, they cannot decrypt the data or derive the session key, thanks to a feature called forward secrecy .

Huawei CloudFabric solution has been awarded Gartner’s “Customer Choice” three times by March 2021. According to the Huawei CloudFabric Solution Wins Gartner Peer Insights Customers’ Choice for Third Consecutive Year article, Huawei CloudFabric solution received this honor in 2019, 2020, and 2021.

 NE8000 X4 and X8 are high-end core routers designed for large-scale IP backbone networks, data centers, and metro networks . They support various redundancy designs to ensure high availability and reliability, such as MPU (Main Processing Unit) 1+1 backup, SFU (Switch Fabric Unit) 7+1 backup, and PEM (Power Entry Module) 1+1 backup . MPU 1+1 backup means that two MPUs work in active/standbymode and provide control plane redundancy . SFU 7+1 backup means that eight SFUs work in N+1 mode and provide data plane redundancy . PEM 1+1 backup means that two PEMs work in active/standby mode and provide power supply redundancy . The NE8000 X4 and X8 do not support power supply 9+1 backup, which is a feature of the NE8000 X16 router .

HiSec Insight is a security analysis platform that provides comprehensive protection against advanced persistent threats (APTs) and application layer DDoS attacks . It uses big data analysis and machine learning techniques to detect and block malicious traffic, identify attack sources, and generate security reports . The other products are not specialized in defending against application layer DDoS attacks. USG6000E is a series of next-generation firewalls that provide network security and VPN services . AntiDDoS is a series of products that provide protection against network layer DDoS attacks . FireHunter is a series of sandbox products that provide malware detection and analysis .

CloudEngine S1270OE-O8 provides eight LPU slots, four SFU slots, two MPU slots, two CMU slots, and six power module slots1.

Huawei AirEngine 6760 series supports four spatial streams by default, but after an RTU (Right To Use) license is purchased, it can support up to eight spatial streams on the 5 GHz band. It can also support four spatial streams on the 2.4 GHz band or scanning mode. Therefore, the possible spatial stream combinations are 4+8, 4+8+4, 4+4+scanning, and 4+6+scanning.

iMaster NCE-FabricInsight is a network analysis platform that provides intelligent O&M for data center networks . It has the following features:

• 1-3-5 intelligent O&M: This is a methodology that enables network administrators to locate faults within 1 minute, identify root causes within 3 minutes, and rectify faults within 5 minutes . It uses AI algorithms and big data analysis to provide proactive fault prevention, rapid fault location, and intelligent fault recovery .
• Network health check: This is a function that monitors the network status and performance in real time, and provides comprehensive network health reports and suggestions for improvement . It uses various indicators such as availability, reliability, latency, jitter, packet loss, and bandwidth utilization to evaluate the network health .
• Flow analysis: This is a function that collects and analyzes the network traffic data, and provides granular visibility into the network flows and applications . It uses technologies such as sFlow, NetStream, and Telemetry to obtain the flow information, and supports features such as flow path tracing, flow quality analysis, flow anomaly detection, and flow optimization .
• AI-scenario data visualization: This is a function that displays the network data in a visual and interactive way, and provides insights into the network behavior and trends . It uses technologies such as graph databases, natural language processing, and machine learning to present the network data in various scenarios, such as topology views, service views, device views, alarm views, and report views .
• Capacity/traffic risk prediction: This is a function that predicts the future network capacity and traffic demand based on historical data and trend analysis, and provides suggestions for network planning and optimization . It uses technologies such as time series analysis, regression analysis, and neural networks to forecast the network growth and identify potential risks .

CloudEngine S5736-S supports iStack, which is a technology that allows multiple switches to be connected and managed as a single logical device, improving network scalability and reliability 1. The other features are not supported by the CloudEngine S5736-S. Native AC is a feature of the CloudEngine S7700 series switches that enables them to function as wireless access controllers 2. Free mobility is a feature of Huawei’s Agile Campus Network Solution that enables seamless roaming of wireless terminals 3. VXLAN is a technology that creates overlay networks to extend Layer 2 connectivity across Layer 3 networks 4, but it is not supported by the CloudEngine S5736-S 1.

The free mobility function allows users to obtain the consistent network access policy regardless of their location and IP address, but it does not require the network to be made up entirely of Huawei devices. According to the Huawei CloudCampus Solution Description, free mobility is supported on a hybrid network consisting of Huawei and third-party devices, and the authentication point can be deployed on third-party devices.

BGP EVPN is a control plane protocol that can be used for VXLAN networks . VXLAN is a technology that creates overlay networks to extend Layer 2 connectivity across Layer 3 networks . BGP EVPN has the following functions as a VXLAN control plane protocol:

• It automatically establishes the VXLAN tunnel between VTEPs (VXLAN Tunnel Endpoints), which are devices that encapsulate and decapsulate VXLAN packets . You do not need to manually configure a full-mesh tunnel between all VTEPs, which reduces the configuration complexity and improves the scalability .
• It advertises host routes and MAC address entries on the control plane, which are used to learn the location of hosts and their corresponding VTEPs . This reduces the unknown traffic flooding that occurs when the destination MAC address is unknown, and optimizes the packet forwarding by using optimal paths .
• It implements Layer 2 interconnection between data centers in different networking modes, such as bridging, routing, or integrated routing and bridging (IRB) . This enables seamless communication between hosts in different subnets or VLANs across data centers .
• It advertises subnet routes to implement Layer 3 interconnection of data centers through VXLAN tunnels . This enables routing between different subnets or VLANs across data centers without requiring an external gateway device .