View Full Huawei H19-301 Exam Dumps and Practice Test Dumps

 

Question 21.

In a campus network design, what is the primary role of the access layer?

1. Connect end users and endpoint devices to the network
2. Provide internet transit between autonomous systems
3. Replace the WAN edge
4. Operate only as a management network

Correct Answer: 1. Connect end users and endpoint devices to the network

Explanation:

The access layer provides network connectivity for endpoint devices such as PCs, IP phones, printers, cameras, and wireless access points. Access switches may also provide PoE, VLAN assignment, access control, and edge security functions. In a campus design, presales engineers should consider port density, PoE budget, uplink bandwidth, endpoint growth, redundancy, and management requirements. The access layer is therefore focused primarily on user and device connectivity rather than inter-AS routing or WAN transit.

Question 22.

What is the primary purpose of the aggregation layer in a hierarchical campus network?

1. Power all wireless clients directly
2. Aggregate access-layer traffic and provide policy and routing functions
3. Replace all access switches
4. Provide only storage connectivity

Correct Answer: 2. Aggregate access-layer traffic and provide policy and routing functions

Explanation:

The aggregation layer collects traffic from multiple access switches and connects it toward the campus core. It can also provide routing, policy enforcement, gateway functions, redundancy, and traffic control depending on the architecture. This layer helps keep the campus design modular and scalable. Presales engineers should evaluate uplink capacity, routing scale, redundancy, and the expected number of downstream access switches when sizing aggregation devices.

Question 23.

What is the main purpose of the core layer in a large campus network?

1. Provide low-speed endpoint access
2. Supply PoE directly to all phones
3. Provide high-speed, resilient transport between major network blocks
4. Replace all wireless controllers

Correct Answer: 3. Provide high-speed, resilient transport between major network blocks

Explanation:

The core layer acts as the high-speed backbone of a campus network. It interconnects aggregation blocks, data centers, WAN edges, internet gateways, and other major network services. Core design usually emphasizes high forwarding performance, low latency, redundancy, and rapid convergence rather than large numbers of endpoint-facing access ports. A well-designed core should be simple, resilient, and capable of supporting traffic growth over the expected lifecycle of the network.

Question 24.

Which factor is MOST important when sizing uplinks between access and aggregation switches?

1. The color of the switch chassis
2. The number of OSPF areas only
3. The customer’s office furniture layout
4. Expected aggregate traffic, oversubscription targets, and future growth**

Correct Answer: 4. Expected aggregate traffic, oversubscription targets, and future growth

Explanation:

Uplink sizing should reflect how much traffic the connected users and devices are likely to generate. Presales engineers should consider endpoint count, application bandwidth, wireless traffic, server access, expected oversubscription, redundancy, and future expansion. If uplinks are undersized, congestion can occur even when access ports have sufficient local capacity. Oversizing every connection may increase cost unnecessarily, so the design should balance expected demand with practical growth headroom.

Question 25.

Which benefit does stack or virtualization technology typically provide in a campus switching design?

1. Simplified management and improved redundancy across multiple physical devices
2. Automatic replacement of all routing protocols
3. Elimination of all cabling
4. Removal of the need for IP addressing

Correct Answer: 1. Simplified management and improved redundancy across multiple physical devices

Explanation:

Switch virtualization or stacking technologies can allow multiple physical switches to operate more like one logical system. This can simplify management, reduce protocol complexity, and support resilient multi-device links. Exact capabilities depend on the platform and deployment model. In presales design, the engineer should evaluate supported topology, member count, bandwidth between members, failure behavior, and upgrade requirements before recommending a virtualization approach.

Question 26.

What is a major reason to use redundant uplinks from an access switch toward the upstream network?

1. Increase the number of local VLAN names
2. Maintain connectivity if one uplink or upstream device fails
3. Eliminate endpoint authentication
4. Disable network monitoring

Correct Answer: 2. Maintain connectivity if one uplink or upstream device fails

Explanation:

Redundant uplinks improve availability by providing an alternative path when a link or upstream device fails. Depending on the architecture, both links may actively forward traffic or one may act as a backup. Technologies such as link aggregation, switch virtualization, spanning tree, or Layer 3 routing can support different redundancy models. Presales engineers should ensure that the redundancy mechanism matches the topology and that failure behavior has been considered end to end.

Question 27.

Which factor should be considered when selecting an access switch for IP phone deployment?

1. Only the switch hostname
2. Only the number of routing protocols supported
3. PoE capability, port density, voice VLAN support, and uplink capacity
4. Only the device’s physical weight

Correct Answer: 3. PoE capability, port density, voice VLAN support, and uplink capacity

Explanation:

IP phones commonly require both Ethernet connectivity and PoE. An access switch should provide enough PoE-capable ports and sufficient total power budget for the expected phones and other powered devices. Voice VLAN support, QoS, uplink capacity, and redundancy may also be important. Presales engineers should consider not only current endpoint count but also planned expansion and the possibility that phones may provide passthrough connectivity to users’ computers.

Question 28.

Why is QoS important for voice and video applications?

1. It increases physical cable length
2. It eliminates all packet loss permanently
3. It replaces IP routing
4. It helps prioritize delay-sensitive traffic during periods of congestion**

Correct Answer: 4. It helps prioritize delay-sensitive traffic during periods of congestion

Explanation:

Voice and interactive video are sensitive to delay, jitter, and packet loss. QoS mechanisms can classify and mark these applications and provide them with appropriate scheduling treatment when links become congested. QoS does not create additional bandwidth, but it helps allocate available capacity according to business priorities. A complete design should include consistent classification, marking, trust boundaries, queuing, and bandwidth planning across the relevant network path.

Question 29.

What is the primary purpose of an access control policy in an enterprise campus network?

1. Restrict network access according to user, device, or security requirements
2. Increase physical interface speed
3. Provide storage replication
4. Replace wireless planning

Correct Answer: 1. Restrict network access according to user, device, or security requirements

Explanation:

Access control policies determine who or what may connect to the network and what resources can be reached. Policies can be based on user identity, device type, authentication state, network location, or other criteria. In modern campus environments, centralized policy can improve both security and operational consistency. Presales engineers should understand requirements for employee, guest, contractor, IoT, and administrative access before designing segmentation and authentication mechanisms.

Question 30.

What is the main purpose of network segmentation in an enterprise environment?

1. Increase the number of physical buildings
2. Separate users and services into controlled logical groups
3. Remove the need for firewalls
4. Eliminate routing

Correct Answer: 2. Separate users and services into controlled logical groups

Explanation:

Segmentation limits unnecessary communication between different user groups, devices, departments, or application environments. It can be implemented using VLANs, VRFs, access-control policies, or other mechanisms depending on the network architecture. Segmentation improves security, broadcast control, policy enforcement, and operational organization. It should be designed alongside routing and security policies so permitted traffic can still move between segments in a controlled manner.

Question 31.

What is the main purpose of a WLAN controller or centralized wireless control function?

1. Centralize management and coordination of multiple wireless access points
2. Replace all wired switches
3. Provide only internet DNS service
4. Act as a file server

Correct Answer: 1. Centralize management and coordination of multiple wireless access points

Explanation:

Centralized wireless control can simplify configuration, policy, radio management, roaming, monitoring, and lifecycle operations across many access points. In larger WLAN deployments, managing APs individually becomes inefficient and error-prone. Depending on the architecture, controller functions may be delivered through dedicated devices or centralized management and control platforms. Presales engineers should consider AP scale, redundancy, deployment mode, management requirements, and integration with broader campus operations.

Question 32.

Why should AP density be based on both coverage and capacity requirements?

1. Signal coverage alone guarantees unlimited performance
2. A strong signal does not guarantee enough airtime or throughput for many users
3. More APs always eliminate interference
4. Client count has no effect on WLAN performance

Correct Answer: 2. A strong signal does not guarantee enough airtime or throughput for many users

Explanation:

A WLAN can provide excellent signal coverage and still perform poorly if too many clients share the same available airtime. High-density environments such as classrooms, meeting halls, and offices may require additional APs primarily for capacity rather than coverage. Presales planning should therefore evaluate client count, application demand, channel availability, interference, device capabilities, and expected concurrency. AP quantity should result from both radio coverage and traffic-capacity analysis.

Question 33.

What is the primary purpose of wireless roaming in an enterprise WLAN?

1. Allow mobile clients to move between AP coverage areas while maintaining network service
2. Increase PoE voltage
3. Replace VLANs
4. Create WAN tunnels only

Correct Answer: 1. Allow mobile clients to move between AP coverage areas while maintaining network service

Explanation:

Roaming allows a wireless client to transition from one access point to another as the user moves through a building or campus. Effective roaming is especially important for mobile voice, video, healthcare, warehouse, and other applications where service interruption should be minimized. WLAN design should provide overlapping coverage, consistent policy, appropriate authentication behavior, and coordinated radio planning. Client device behavior also affects how and when roaming occurs.

Question 34.

What is a major benefit of centralized network management for a multisite enterprise?

1. It eliminates all WAN costs
2. It can provide consistent configuration, monitoring, and policy across many locations
3. It removes the need for redundancy
4. It guarantees zero failures

Correct Answer: 2. It can provide consistent configuration, monitoring, and policy across many locations

Explanation:

Centralized management helps organizations operate many network devices and sites more consistently. Administrators can monitor topology, alarms, configuration status, performance, and policy from a common platform rather than managing every device independently. This can reduce configuration errors and operational workload. It also supports standardized deployment processes and easier troubleshooting. Centralization does not eliminate physical failures or WAN costs, but it can make the network significantly easier to operate at scale.

Question 35.

Which consideration is MOST important when selecting a WAN solution for branch offices?

1. Required applications, bandwidth, availability, security, and local access options
2. The color of branch routers
3. The number of printers only
4. The user’s desktop wallpaper

Correct Answer: 1. Required applications, bandwidth, availability, security, and local access options

Explanation:

Branch WAN requirements vary significantly depending on the applications used, number of users, cloud dependency, voice and video demand, security requirements, and available telecom services. Some branches may need dual links or multiple transport types for resilience. Others may prioritize cost and simplicity. A presales engineer should evaluate application performance targets and local connectivity options before selecting router models, link capacity, SD-WAN functions, or redundancy designs.

Question 36.

Why might an enterprise use multiple WAN transport links at a branch?

1. To prevent any traffic from leaving the branch
2. To improve resilience and potentially steer applications across different paths
3. To eliminate routing
4. To reduce the number of available paths to one

Correct Answer: 2. To improve resilience and potentially steer applications across different paths

Explanation:

Multiple WAN links can provide continuity when one transport fails and can also increase total available bandwidth. In an SD-WAN environment, applications may be steered dynamically according to path quality, business priority, or policy. For example, latency-sensitive applications may use the better-performing path while less critical traffic uses another connection. Presales engineers should consider carrier diversity, link characteristics, failover behavior, and ongoing service costs when designing WAN redundancy.

Question 37.

What is the primary purpose of capacity planning in an IP network proposal?

1. Ensure the solution can support expected workloads and reasonable future growth
2. Remove all spare capacity
3. Prevent users from adding applications
4. Avoid documenting assumptions

Correct Answer: 1. Ensure the solution can support expected workloads and reasonable future growth

Explanation:

Capacity planning estimates the resources required to support current and projected users, devices, applications, and traffic. It includes port count, forwarding performance, bandwidth, PoE power, wireless capacity, route scale, and other relevant resources. A good design provides sufficient headroom without excessive oversizing. Assumptions should be documented so the customer understands what workload and growth expectations were used when sizing the proposed solution.

Question 38.

What is the primary purpose of a bill of materials in a network presales proposal?

1. Define only the network IP addressing scheme
2. List the hardware, software, licenses, modules, and related components required for the solution
3. Replace the network design document
4. Provide only marketing descriptions

Correct Answer: 2. List the hardware, software, licenses, modules, and related components required for the solution

Explanation:

A bill of materials identifies the specific components required to implement the proposed solution. Depending on the project, this may include chassis, switches, routers, APs, interface modules, power supplies, optics, licenses, management software, support services, and accessories. An accurate BOM helps ensure technical completeness and commercial accuracy. Presales engineers should verify compatibility between components and confirm that redundancy, power, interface, and licensing requirements are fully represented.

Question 39.

Why should optical transceiver compatibility be checked during solution design?

1. Because transceiver type must match interface speed, media, reach, and supported hardware requirements
2. Because every optical module works in every interface
3. Because optical modules are used only for wireless networks
4. Because transceivers determine VLAN IDs

Correct Answer: 1. Because transceiver type must match interface speed, media, reach, and supported hardware requirements

Explanation:

Optical connectivity depends on several parameters, including interface speed, fiber type, wavelength, connector type, required distance, and equipment support. Selecting an incompatible transceiver can prevent a link from operating even when the switches themselves are correct. Presales engineers should verify both ends of each connection and include the necessary modules and cabling in the bill of materials. Distance and environmental requirements should also be considered when selecting optics.

Question 40.

Which approach BEST supports a high-quality Huawei IP network presales design?

1. Select the highest-cost products regardless of customer needs
2. Copy another customer’s topology without analysis
3. Focus only on hardware specifications
4. Combine requirement analysis, architecture, capacity planning, compatibility checks, resilience, management, and lifecycle considerations**

Correct Answer: 4. Combine requirement analysis, architecture, capacity planning, compatibility checks, resilience, management, and lifecycle considerations

Explanation:

A strong presales proposal should connect customer requirements to a complete technical solution rather than simply list products. The design should address topology, performance, port and bandwidth capacity, WLAN coverage, PoE, resilience, security, management, compatibility, expansion, and operational requirements. The bill of materials should accurately reflect the architecture. Considering the entire lifecycle helps ensure that the solution remains manageable and scalable after deployment instead of meeting only the initial installation requirements.