H12-891_V1.0 Exam Dumps - HCIE-Datacom V1.0

Comprehensive and Detailed In-Depth Explanation:

Analyzing the output:

A. The device sends sampled data every second:Correct. Thesample interval is 1000 ms (1 second).

B. The subscription name is Sub1:Correct. Thesubscription nameis clearly shown asSub1.

C. The subscription mode is static subscription:Correct. Since theSub-stateisPASSIVE, it indicates astatic subscription.

D. The IP address of the device is 192.168.56.1:Incorrect. The IP address192.168.56.1shown in the output is thedestination IPwhere the telemetry data is sent, not the IP address of the device itself.

Comprehensive and Detailed Explanation:

✔802.1X authenticationsupportsmultiple logout mechanismsbased on network conditions and security policies.

✔Correct Logout Modes:

✅(A) Authentication Server Logout→ The RADIUS server canterminatea session.

✅(B) Manual Logout→ Users candisconnect manually.

✅(C) Access Device Logout→ The switch/WLAN controller canenforce logouts(e.g., if inactivity is detected).

✔Why Not (D)?

❌(D) Accounting Server Logout→ Theaccounting server tracks session usagebutdoes not enforce logouts.

📖Reference:Huawei HCIE Datacom – 802.1X Authentication & Session Termination

Understanding MPLS Forwarding Mechanism

MPLS (Multiprotocol Label Switching) is a high-performance forwarding mechanism that operates on two planes:

1️⃣Control Plane:

EstablishesLabel Switched Paths (LSPs)using protocols likeLDP (Label Distribution Protocol),RSVP-TE (Resource Reservation Protocol - Traffic Engineering), orBGP-LU (BGP Label Unicast).

Assignslabelsto packets based on routing policies.

2️⃣Data Plane (Forwarding Plane):

Uses aLabel Forwarding Information Base (LFIB)instead of traditional IP routing.

Packets areforwarded based on labels, not IP addresses.

Analysis of the Answer Choices

✅C. The system automatically assigns an ID to the upper-layer application that uses a tunnel. This ID is also called the tunnel ID.

Correct:MPLS assigns aTunnel IDto applications that utilize tunnels (e.g.,VPNs, MPLS-TE, or L2/L3 services).

This ID helpsdifferentiate between various tunnel applications, ensuring traffic follows the correct LSP.

❌A. After an IP packet enters an MPLS domain, the MPLS device forwards the packet based on FIB table queries.

Incorrect:MPLS routersdo NOT use the FIB (Forwarding Information Base)for forwarding once labels are assigned.

Instead, they useLFIB (Label Forwarding Information Base)to switch packets based on labels.

❌B. If the tunnel ID is 0x0, the MPLS forwarding process starts.

Incorrect:If theTunnel ID is 0x0, MPLSdoes NOT start; it means no label is assigned, and traditionalIP forwardingoccurs.

❌D. If the tunnel ID is not 0x0, the normal IP forwarding process starts.

Incorrect:If the Tunnel ID isnot0x0, MPLSforwards traffic using label switching, not IP forwarding.

Comprehensive and Detailed Explanation:

iMaster NCE-CampusInsightis Huawei'sintelligent network analysis platformthat:

✔Collectsreal-time telemetry datausingSNMP, NetStream, and Telemetry.

✔Analyzes traffic patternsto detect network anomalies.

✔UsesAI-driven analyticsto optimize network performance.

Thus, the statement isTRUE.

📖Reference:Huawei HCIE Datacom – iMaster NCE-CampusInsight Features

Comprehensive and Detailed In-Depth Explanation:

A. When planning paths based on bandwidth:Correct. The available bandwidth of each interface must beset in advanceto allow path planning based on bandwidth requirements.

B. When planning paths based on delay:Correct. To plan paths considering delay, you need to deployTWAMP (Two-Way Active Measurement Protocol)oriFIT (Intelligent Flow Information Telemetry)to measure thereal-time delayon network links.

C. If the controller plans SR-MPLS Policy paths:Incorrect. The controller can planprimary, backup, and load-balanced paths, enablingtraffic distribution across multiple paths.

D. Statically planned SR-MPLS Policy paths:Correct. You canmanually configure load balancingfor the primary path when planning the SR-MPLS Policy path statically.