All H19-301_V3.0 Test Inside Huawei Questions

In Huawei switches, Layer 2 Ethernet interfaces are used to forward data at the data link layer (Layer 2) of the OSI model. These interfaces are essential for VLAN segmentation and communication within a local area network (LAN). The three main types of Layer 2 Ethernet interfaces are:

Hybrid:A hybrid interface can carry traffic from multiple VLANs and is highly flexible. It allows both tagged and untagged traffic, making it suitable for complex network designs.

Trunk:A trunk interface is used to carry traffic from multiple VLANs between switches or other network devices. It typically tags VLAN traffic using IEEE 802.1Q encapsulation.

Access:An access interface is associated with a single VLAN and is used to connect end devices like PCs or IP phones. It carries untagged traffic by default.

The options "Agg" (likely referring to aggregation) and "Core" are not Layer 2 interface types but rather refer to higher-level concepts like link aggregation or core network architecture.

References:

HCSA-Presales-IP Network Study Guide, Section: "Switching Basics and VLAN Configuration."

Huawei Switch Product Documentation, VLAN Interface Types.

Airflow Design in Data Center Switches:

Airflow design is critical for efficient heat dissipation in data center switches. Front-to-back airflow ensures that cool air enters from the front and hot air exits from the back, aligning with typical data center cooling systems.

Huawei Cloud Engine S12700E:

The S12700E series switches are designed with front-to-back airflow to improve heat dissipation efficiency. This design minimizes overheating risks and ensures stable operation in high-density environments.

Conclusion:The statement is TRUE because the S12700E series uses a front-to-back airflow design.

References:

HCSA-Presales-IP Network V3.0 Training Material, Chapter 6: Core Switch Product Portfolio.

Huawei Cloud Engine S12700E Product Documentation.

Huawei'sCloudWAN 3.0solution introduces several innovative features to modernize wide-area networks (WANs):

One-click fast scheduling:Simplifies resource allocation and improves efficiency using SDN and intelligent algorithms.

One-fiber multipurpose transport:Enables multiple services (e.g., Internet, private lines) to share a single fiber, reducing costs.

One-network wide connection:Provides seamless connectivity across diverse locations and devices.

One-hop cloud access:Ensures direct and efficient access to cloud services, reducing latency.

The option"One-click maintenance"is not explicitly highlighted as a key feature of CloudWAN3.0. While maintenance tools exist, they are not marketed as a core highlight of this solution.

References:

HCSA-Presales-IP Network Study Guide, Section: "CloudWAN 3.0 Key Features."

Huawei CloudWAN Solution Documentation, Intelligent Cloud-Network Era.

Understanding MACsec:

MACsec (Media Access Control Security) provides Layer 2 encryption to secure data transmission between network devices, ensuring confidentiality and integrity.

Analysis of Each Model:

NetEngine 8000 M6:This model supports MACsec, making it suitable for secure WAN and DCI deployments.

NetEngine 8000 MIC:This model does not support MACsec.

NetEngine 8000 F1A:This model supports MACsec, enabling secure communication in high-performance networks.

NetEngine 8000 MIA:This model does not support MACsec.

Conclusion:The correct models supporting MACsec are Options A (NetEngine 8000 M6) and C (NetEngine 8000 F1A).

References:

HCSA-Presales-IP Network V3.0 Training Material, Chapter 4: Router Product Portfolio.

Huawei NetEngine 8000 Series Product Documentation.