H12-893_V1.0-ENU HCIP-Data Center Network V1.0 Exam Dumps

1. Download the latest H12-893_V1.0-ENU exam dumps PDF for Preparation. Exam : H12-893_V1.0-ENU Title : HCIP-Data Center Network V1.0 https://www.passcert.com/H12-893_V1.0-ENU.html 1 / 7

2. Download the latest H12-893_V1.0-ENU exam dumps PDF for Preparation. 1.Which of the following is not an advantage of link aggregation on CE series switches? A. Improved forwarding performance of switches B. Load balancing supported C. Increased bandwidth D. Improved reliability Answer: A Explanation: Link aggregation, often implemented using Link Aggregation Control Protocol (LACP) on Huawei CloudEngine (CE) series switches, combines multiple physical links into a single logical link to enhance network performance and resilience. The primary advantages include: Load Balancing Supported (B): Link aggregation distributes traffic across multiple links based on hashing algorithms (e.g., source/destination IP or MAC), improving load distribution and preventing any single link from becoming a bottleneck. Increased Bandwidth (C): By aggregating multiple links (e.g., 1 Gbps ports into a 4 Gbps logical link), the total available bandwidth increases proportionally to the number of links. Improved Reliability (D): If one link fails, traffic is automatically redistributed to the remaining links, ensuring continuous connectivity and high availability. However, Improved Forwarding Performance of Switches (A) is not a direct advantage. Forwarding performance relates to the switch’s internal packet processing capabilities (e.g., ASIC performance, forwarding table size), which link aggregation does not inherently enhance. While it optimizes link utilization, it doesn’t improve the switch’s intrinsic forwarding rate or reduce latency at the hardware level. This aligns with Huawei’s CE series switch documentation, where link aggregation is described as enhancing bandwidth and reliability, not the switch’s core forwarding engine. Reference: Huawei CloudEngine Series Switch Configuration Guide – Link Aggregation Section. 2.In the DCN architecture, spine nodes connect various network devices to the VXLAN network. A. TRUE B. FALSE Answer: A Explanation: In Huawei’s Data Center Network (DCN) architecture, particularly with the CloudFabric solution, the spine-leaf topology is a common design for scalable and efficient data centers. VXLAN (Virtual Extensible LAN) is used to create overlay networks, enabling large-scale multi-tenancy and flexible workload placement. Spine Nodes’ Role: In this architecture, spine nodes act as the backbone, interconnecting leaf nodes (which connect to servers, storage, or other endpoints) and facilitating high-speed, non-blocking communication. Spine nodes typically handle Layer 3 routing and serve as VXLAN tunnel endpoints (VTEPs) or connect to devices that do, integrating the physical underlay with the VXLAN overlay network. Connection to VXLAN: Spine nodes ensure that traffic from various network devices (via leaf nodes) is routed efficiently across the VXLAN fabric. They provide the high-bandwidth, low-latency backbone required for east-west traffic in modern data centers, supporting VXLAN encapsulation and decapsulation indirectly or directly depending on the deployment. Thus, the statement is TRUE (A) because spine nodes play a critical role in connecting the underlay 2 / 7

3. Download the latest H12-893_V1.0-ENU exam dumps PDF for Preparation. network (various devices via leaf nodes) to the VXLAN overlay, as per Huawei’s DCN design principles. Reference: Huawei CloudFabric Data Center Network Solution White Paper; HCIP-Data Center Network Training Materials – VXLAN and Spine-Leaf Architecture. 3.Which of the following statements are true about common storage types used by enterprises? A. FTP servers are typically used for file storage. B. Object storage devices are typically disk arrays. C. Block storage applies to databases that require high I/O. D. Block storage typically applies to remote backup storage. Answer: AC Explanation: Comprehensive and Detailed in Depth A. FTP servers are typically used for file storage. This is correct. FTP (File Transfer Protocol) servers are indeed a common way to store and share files. They are widely used for basic file storage and transfer needs. B. Object storage devices are typically disk arrays. This is incorrect. Object storage devices are not typically disk arrays in the traditional sense. Object storage is designed for massive amounts of unstructured data. While they use disks for persistence, they present data as objects with metadata, rather than as blocks or files. Object storage solutions often use distributed systems across many servers, not just a single array. C. Block storage applies to databases that require high I/O. This is correct. Block storage is ideal for applications that demand high I/O performance, such as databases. Block storage provides raw, unformatted data blocks, giving applications direct control and low latency. D. Block storage typically applies to remote backup storage. This is partially true, but not the typical primary use case. While block storage can be used for remote backups, it is generally considered less efficient and more expensive than object storage for this purpose. Object storage is better suited for large, unstructured backup datasets. Block storage is better for applications that need fast read/write speeds, such as databases and virtual machines. Therefore, the correct answers are A and C. Reference to Huawei Data Center Network documents: Huawei storage product documentation detailing block storage (e.g., OceanStor Dorado), file storage, and object storage (e.g., OceanStor Pacific) characteristics and use cases. Huawei white papers on data center storage architectures, which compare and contrast different storage types. Huawei HCIP-Storage training materials, which will have very detailed information regarding each of the storage types, and their use cases. 4.Which of the following technologies are Layer 4 load balancing technologies? (Select All that Apply) A. Nginx B. PPP C. LVS D. HAProxy Answer: A, C, D 3 / 7

4. Download the latest H12-893_V1.0-ENU exam dumps PDF for Preparation. Explanation: Layer 4 load balancing operates at the transport layer (OSI Layer 4), using TCP/UDP protocols to distribute traffic based on information like IP addresses and port numbers, without inspecting the application-layer content (Layer 7). Let’s evaluate each option: A. Nginx: Nginx is a versatile web server and reverse proxy that supports both Layer 4 and Layer 7 load balancing. In its Layer 4 mode (e.g., with the stream module), it balances TCP/UDP traffic, making it a Layer 4 load balancing technology. This is widely used in Huawei’s CloudFabric DCN solutions for traffic distribution. TRUE. B. PPP (Point-to-Point Protocol): PPP is a Layer 2 protocol used for establishing direct connections between two nodes, typically in WAN scenarios (e.g., dial-up or VPNs). It does not perform load balancing at Layer 4 or any layer, as it’s a point-to-point encapsulation protocol. FALSE. C. LVS (Linux Virtual Server): LVS is a high-performance, open-source load balancing solution integrated into the Linux kernel. It operates at Layer 4, using techniques like NAT, IP tunneling, or direct routing to distribute TCP/UDP traffic across backend servers. It’s a core Layer 4 technology in enterprise DCNs. TRUE. D. HAProxy: HAProxy is a high-availability load balancer that supports both Layer 4 (TCP mode) and Layer 7 (HTTP mode). In TCP mode, it balances traffic based on Layer 4 attributes, making it a Layer 4 load balancing technology. It’s commonly deployed in Huawei DCN environments. TRUE. Thus, A (Nginx), C (LVS), and D (HAProxy) are Layer 4 load balancing technologies. PPP is not. Reference: Huawei CloudFabric Data Center Network Solution – Load Balancing Section; HCIP-Data Center Network Training – Network Traffic Management. 5.Which of the following components is not required to provide necessary computing, storage, and network resources for VMs during VM creation? A. Nova B. Neutron C. Ceilometer D. Cinder Answer: C Explanation: This question pertains to OpenStack, a common virtualization platform in Huawei’s HCIP-Data Center Network curriculum, where components collaborate to create and manage virtual machines (VMs). Let’s analyze each component’s role in providing computing, storage, and network resources during VM creation: A. Nova: Nova is the compute service in OpenStack, responsible for managing VM lifecycles, including provisioning CPU and memory resources. It’s essential for providing computing resources during VM creation. Required. B. Neutron: Neutron is the networking service, handling virtual network creation, IP allocation, and connectivity (e.g., VXLAN or VLAN) for VMs. It’s critical for providing network resources during VM creation. Required. C. Ceilometer: Ceilometer is the telemetry service, used for monitoring, metering, and collecting usage data (e.g., CPU utilization, disk I/O) of VMs. While useful for billing or optimization, it does not directly provide computing, storage, or network resources during VM creation. Not Required. 4 / 7

5. Download the latest H12-893_V1.0-ENU exam dumps PDF for Preparation. D. Cinder: Cinder is the block storage service, providing persistent storage volumes for VMs (e.g., for OS disks or data). It’s essential for providing storage resources during VM creation if a volume is attached. Required. Thus, C (Ceilometer) is not required to provision the core resources (computing, storage, network) for VM creation, as its role is monitoring, not resource allocation. Reference: Huawei HCIP-Data Center Network Training – OpenStack Architecture; OpenStack Official Documentation – Service Overview. 6.In an M-LAG, two CE series switches send M-LAG synchronization packets through the peer-link to synchronize information with each other in real time. Which of the following entries need to be included in the M-LAG synchronization packets to ensure that traffic forwarding is not affected if either device fails? (Select All that Apply) A. MAC address entries B. Routing entries C. IGMP entries D. ARP entries Answer: A, D Explanation: Multi-Chassis Link Aggregation Group (M-LAG) is a high-availability technology on Huawei CloudEngine (CE) series switches, where two switches appear as a single logical device to downstream devices. The peer-link between the M-LAG peers synchronizes critical information to ensure seamless failover if one device fails. Let’s evaluate the entries: A. MAC Address Entries: MAC address tables map device MACs to ports. In M-LAG, synchronizing MAC entries ensures that both switches know the location of connected devices. If one switch fails, the surviving switch can forward Layer 2 traffic without relearning MAC addresses, preventing disruptions. Required. B. Routing Entries: Routing entries (e.g., OSPF or BGP routes) are maintained at Layer 3 and typically synchronized via routing protocols, not M-LAG peer-link packets. M-LAG operates at Layer 2, and while Layer 3 can be overlaid (e.g., with VXLAN), routing table synchronization is not a standard M-LAG requirement. Not Required. C. IGMP Entries: IGMP (Internet Group Management Protocol) entries track multicast group memberships. While useful for multicast traffic, they are not critical for basic unicast traffic forwarding in M-LAG failover scenarios. Huawei documentation indicates IGMP synchronization is optional and context-specific, not mandatory for general traffic continuity. Not Required. D. ARP Entries: ARP (Address Resolution Protocol) entries map IP addresses to MAC addresses, crucial for Layer 2/Layer 3 communication. Synchronizing ARP entries ensures the surviving switch can resolve IP-to-MAC mappings post-failover, avoiding ARP flooding or traffic loss. Required. Thus, A (MAC address entries) and D (ARP entries) are essential for M-LAG synchronization to maintain traffic forwarding during failover, per Huawei CE switch M-LAG design. Reference: Huawei CloudEngine Series Switch Configuration Guide – M-LAG Section; HCIP-Data Center Network Training – High Availability Technologies. 7.Which of the following technologies are open-source virtualization technologies? (Select All that Apply) 5 / 7

6. Download the latest H12-893_V1.0-ENU exam dumps PDF for Preparation. A. Hyper-V B. Xen C. FusionSphere D. KVM Answer: B, D Explanation: Virtualization technologies enable the creation of virtual machines (VMs) by abstracting hardware resources. Open-source technologies are freely available with accessible source code. Let’s evaluate each option: A. Hyper-V: Hyper-V is a hypervisor developed by Microsoft, integrated into Windows Server and available as a standalone product. It is proprietary, not open-source, as its source code is not publicly available. Not Open-Source. B. Xen: Xen is an open-source hypervisor maintained by the Xen Project under the Linux Foundation. It supports multiple guest operating systems and is widely used in cloud environments (e.g., Citrix XenServer builds on it). Its source code is freely available. Open-Source. C. FusionSphere: FusionSphere is Huawei’s proprietary virtualization and cloud computing platform, based on OpenStack and other components. While it integrates open-source elements (e.g., KVM), FusionSphere itself is a commercial product, not fully open-source. Not Open-Source. D. KVM (Kernel-based Virtual Machine): KVM is an open-source virtualization technology integrated into the Linux kernel. It turns Linux into a Type-1 hypervisor, and its source code is available under the GNU General Public License. It’s widely used in Huawei’s virtualization solutions. Open-Source. Thus, B (Xen) and D (KVM) are open-source virtualization technologies. Reference: Huawei HCIP-Data Center Network Training – Virtualization Technologies; Official Xen Project and KVM Documentation. 8.The FusionCompute logical architecture consists of two modules: ___ and CNA. (Enter the acronym in uppercase letters.) Answer: VRM Explanation: FusionCompute is Huawei’s virtualization platform, part of the FusionSphere ecosystem, designed for managing virtualized resources in data centers. Its logical architecture consists of two primary modules: VRM (Virtualization Resource Management): VRM is the management module responsible for centralized control, resource allocation, and monitoring of virtual machines, hosts, and clusters. It provides the user interface and orchestration capabilities for administrators to manage the virtualized environment. CNA (Compute Node Agent): CNA runs on physical hosts and handles the execution of virtualization tasks, such as VM creation, resource scheduling, and communication with the underlying hypervisor (typically KVM in Huawei’s implementation). It acts as the compute node agent interfacing with the hardware. Together, VRM and CNA form the core logical architecture of FusionCompute, with VRM managing the environment and CNA executing the compute tasks. The answer, per Huawei’s documentation, is VRM. Reference: Huawei FusionCompute Product Documentation – Architecture Overview; HCIP-Data Center Network Training – FusionCompute Section. 9.Linux consists of the user space and kernel space. 6 / 7

7. Download the latest H12-893_V1.0-ENU exam dumps PDF for Preparation. Which of the following functions are included in the kernel space? (Select All that Apply) A. The NIC driver sends data frames. B. Data encapsulation C. Bit stream transmission D. Data encryption Answer: A, B, C Explanation: In Linux, the operating system is divided into user space (where applications run) and kernel space (where the OS core functions execute with privileged access to hardware). Let’s evaluate each function: A. The NIC Driver Sends Data Frames: Network Interface Card (NIC) drivers operate in kernel space, managing hardware interactions like sending and receiving data frames. This is a low-level task requiring direct hardware access, handled by the kernel’s network stack. Included in Kernel Space. B. Data Encapsulation: Data encapsulation (e.g., adding headers in the TCP/IP stack) occurs in the kernel’s network subsystem (e.g., via the protocol stack like IP or TCP). This process prepares packets for transmission and is a kernel-space function. Included in Kernel Space. C. Bit Stream Transmission: This refers to the physical transmission of bits over the network, managed by the NIC hardware and its driver in kernel space. The kernel coordinates with the NIC to send bit streams, making this a kernel-space function. Included in Kernel Space. D. Data Encryption: Encryption (e.g., via OpenSSL or application-level VPNs) typically occurs in user space, where applications or libraries handle cryptographic operations. While the kernel supports encryption (e.g., IPsec in the network stack), the actual encryption logic is often offloaded to user-space tools, not a core kernel function in standard contexts. Not Typically in Kernel Space. Thus, A, B, and C are functions included in the kernel space, aligning with Linux architecture in Huawei’s DCN context. Reference: Huawei HCIP-Data Center Network Training – Linux Basics; Linux Kernel Documentation – Kernel vs. User Space. 10.A vNIC can transmit data only in bit stream mode. A. TRUE B. FALSE Answer: B Explanation: AvNIC (virtual Network Interface Card) is a software-emulated network interface used by virtual machines to communicate over a virtual or physical network. The statement’s reference to “bit stream mode” is ambiguous but likely implies raw, low-level bit transmission without higher-layer processing. vNIC Functionality: A vNIC operates at a higher abstraction level than physical NICs. It interfaces with the hypervisor’s virtual switch (e.g., Open vSwitch in Huawei environments) and handles data in frames or packets (e.g., Ethernet frames), not just raw bit streams. The hypervisor or host NIC handles the physical bit stream transmission. Data Transmission: vNICs support various modes depending on configuration (e.g., VirtIO, SR-IOV passthrough), transmitting structured data (frames/packets) rather than solely raw bits. Bit stream transmission is a physical-layer task, not the vNIC’s sole mode. Thus, the statement is FALSE (B) because a vNIC does not transmit data only in bit stream mode; it handles higher-level data structures, with bit-level transmission managed by underlying hardware. 7 / 7