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NEW QUESTION # 33
In the computing scenario of Huawei CloudFabric Solution, which of the following services are optional for controller interconnection? (Select All that Apply)
Answer: A,D
Explanation:
In Huawei's CloudFabric Solution, the iMaster NCE-Fabric controller manages the network in computing scenarios (e.g., virtualized environments). Controller interconnection with external systems can be mandatory or optional depending on functionality. Let's evaluate each option:
A . Interconnection with FabricInsight: This is optional. FabricInsight is an analytics and assurance tool that enhances visibility and troubleshooting but is not required for basic controller operations in the computing scenario. OPTIONAL.
B . Interconnection with the authentication server: This is mandatory. Authentication servers (e.g., RADIUS, TACACS+) are essential for securing access to the controller and managed devices, a core requirement in computing scenarios. NOT OPTIONAL.
C . Interconnection with eSight: This is optional. eSight is a network management platform that provides additional monitoring and management capabilities, but it is not necessary for core controller functionality. OPTIONAL.
D . Interconnection with the VMM (Virtual Machine Manager): This is mandatory. Interconnection with a VMM (e.g., FusionCompute, OpenStack) is required to manage virtualized computing resources and orchestrate network services in the computing scenario. NOT OPTIONAL.
Thus, A (Interconnection with FabricInsight) and C (Interconnection with eSight) are optional services for controller interconnection.
NEW QUESTION # 34
Both M-LAG and stacking technologies can overcome the disadvantages of traditional DCNs.
However, M-LAG is a better choice to ensure 24/7 service continuity.
Answer: A
Explanation:
Traditional data center networks (DCNs) often suffer from single points of failure, limited scalability, and traffic bottlenecks. Both M-LAG and stacking address these issues, but their suitability for 24/7 service continuity differs.
M-LAG Benefits: M-LAG (Multi-Chassis Link Aggregation) on Huawei CE switches allows two devices to act as a single logical switch, providing active-active forwarding, high availability, and rapid failover (e.g., via peer-link synchronization). It supports non-stop service during device failures, making it ideal for 24/7 continuity.
Stacking Benefits: Stacking combines multiple switches into a single logical unit, sharing a control plane. While it improves scalability and simplifies management, a stack master failure can disrupt the entire stack unless redundancy is perfectly configured, potentially affecting service continuity.
Comparison: M-LAG's decentralized design and real-time synchronization offer better fault isolation and recovery compared to stacking, where a master switch failure impacts the stack.
Huawei documentation highlights M-LAG's superiority for high-availability scenarios like 24/7 operations.
The statement is TRUE (A) because M-LAG is indeed a better choice than stacking for ensuring
24/7 service continuity due to its robust failover and redundancy features.
NEW QUESTION # 35
A company plans to eliminate STP loops while supporting active forwarding across multiple Layer
2 paths in a data center. Which architecture best satisfies this requirement through Layer 3 forwarding and VXLAN encapsulation?
Answer: A
Explanation:
The spine-leaf architecture provides predictable latency, ECMP forwarding, and Layer 3 underlay connectivity. VXLAN overlays eliminate traditional Layer 2 loop concerns and avoid dependence on STP for traffic forwarding between servers.
NEW QUESTION # 36
Which of the following statements is false about VXLAN tunnel establishment?
Answer: B
Explanation:
VXLAN (Virtual Extensible LAN) tunnels are used to encapsulate Layer 2 traffic over a Layer 3 network, a key component in Huawei's CloudFabric data center solutions. Let's evaluate each statement:
A). A VXLAN tunnel is identified by a pair of VTEPs: This is true. A VXLAN tunnel is identified by the pair of VXLAN Tunnel Endpoint (VTEP) IP addresses (local and remote), along with the VNI (VXLAN Network Identifier). This ensures unique tunnel identification. TRUE.
B). After a tunnel is established, if one end of the tunnel goes Down, the other end may not go Down:
This is true. VXLAN tunnels are unidirectional, and the status of one end does not automatically affect the other unless the underlay network connectivity (e.g., Layer 3 reachability) is lost. The remote VTEP may remain operational if it can still encapsulate/decapsulate traffic. TRUE.
C). For a static tunnel, you need to manually configure the local and remote VNIs: This is true. In a static VXLAN tunnel, administrators must manually configure the VNI and VTEP IP addresses on both ends, as there is no dynamic control plane (e.g., BGP EVPN) to automate the process.
TRUE.
D). Dynamic tunnels depend on EVPN Type 5 routes to transmit information: This is false.
Dynamic VXLAN tunnels rely on BGP EVPN as the control plane, but Type 5 routes (IP Prefix routes) are specifically used for advertising host IP routes and external network routes, not for general tunnel establishment. Dynamic tunnel setup primarily uses Type 2 (MAC/IP Advertisement) and Type 3 (Multicast) routes to exchange VNI and VTEP information. Type 5 routes are relevant for Layer 3 routing, not the initial tunnel setup. FALSE.
Thus, D is the false statement because dynamic tunnels depend on EVPN Type 2 and Type 3 routes, not Type 5, for initial establishment.
NEW QUESTION # 37
Which of the following is not included in the physical architecture of a server?
Answer: C
Explanation:
The physical architecture of a server refers to the tangible and low-level components that constitute the server itself, distinct from logical or software layers. Let's evaluate each option:
A . Application: Applications are software running on top of an operating system or virtual machine, not part of the server's physical architecture. They belong to the logical or user layer, not the physical structure. Not Included.
B . VMmonitor (Hypervisor): Assuming "VMmonitor" refers to a hypervisor (e.g., KVM or Xen), it's a software layer, but in Type-1 hypervisor scenarios, it runs directly on hardware, managing VMs. In Huawei's context, it's considered part of the server's operational architecture when deployed physically. Included.
C . OS (Operating System): The OS (e.g., Linux, Windows) runs directly on server hardware or within a VM. In bare-metal servers, it's a core component of the physical deployment. Included.
D . Hardware: Hardware (e.g., CPU, RAM, NICs, disks) is the foundational physical architecture of a server, providing the physical resources for all operations. Included.
Thus, A (Application) is not part of the physical architecture, as it's a higher-level software entity, not a physical component.
NEW QUESTION # 38
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