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Huawei H12-831_V1.0 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Advanced Routing Protocols | - IS-IS Routing Protocol
|
| Topic 2: IPv6 and Network Services | - Network services
|
| Topic 3: BGP and Internet Routing | - BGP fundamentals
|
| Topic 4: MPLS and VPN Technologies | - VPN technologies
|
| Topic 5: Network Design and Troubleshooting | - Troubleshooting methods
|
Huawei HCIP-Datacom-Advanced Routing & Switching Technology V1.0 Sample Questions:
MPLS can carry multiple network protocol services, including unicast IPv4 services, multicast IPv4 services, unicast IPv6 services, and multicast IPv6 services.
- A. TRUE
- B. FALSE
Correct Answer: A 🗳️
If end-to-end QoS is configured on an MPLS network, the penultimate hop device on the MPLS network can pop MPLS labels from packets based on penultimate hop popping (PHP), so that the egress node can process packets based on the QoS priority in inner packets.
- A. TRUE
- B. FALSE
Correct Answer: A 🗳️
On the network shown in the figure, IS-IS runs on R1, R2, R4, and R5, and the area ID is 49.0001. IS-IS runs on R3 and R6, and the area ID is 49.0002. The import-route isis level-2 into level-1 command is configured on R2 and R5. In AS 65000, R1, R3, R4, and R6 each establish IBGP peer relationships with R2 and R5. R2 and R5 are RRs, and R1, R4, R3, and R6 are clients. The IBGP peer relationships are established using Loopback0. The IP address of Loopback0 on each router is 10.0.X.X/32, and the router ID is 10.0.X.X, where X is the number of the router. R1 and R4 import the external route 192.168.1.0/24 to BGP through the import- route command, and R3 and R6 import the external route 192.168.2.0/24 to BGP through the import-route command. Which of the following statements are true?
- A. The routing table of R1 contains two equal-cost default routes.
- B. The routing table of R1 contains the route 192.168.2.0/24.
- C. The route 192.168.2.0/24 in the routing table of R4 has two different outbound interfaces.
- D. The routing table of R4 contains two equal-cost default routes.
Correct Answer: B,C 🗳️
On the OSPF network shown in the figure, area 1 is a common area, area 2 is a stub area, and area 3 is an NSSA. R5 imports an external route 10.0.5.5/32. Given this, which of the following routers does not have the route 10.0.5.5/32 in its routing table?
- A. R2
- B. R4
- C. R3
- D. R6
Correct Answer: B 🗳️
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When configuring port security on a switch, the administrator also enables static MAC address flapping detection. If static MAC address flapping occurs, the switch takes the configured action to protect the interface.
Match the names of interface security protection actions with corresponding operations.
Correct Answer:
Explanation:
* Restrict # Discards the packets that trigger static MAC address flapping and reports an alarm.
* Protect # Discards the packets that trigger static MAC address flapping only and does not report an alarm.
* Shutdown # Sets the interface state to error-down and reports an alarm.
Comprehensive and Detailed In-Depth Explanation:
1. Understanding Port Security Modes
Port security is used to control access on a switch port based on MAC addresses. If a MAC address violation occurs (e.g., static MAC address flapping), the switch can take different actions based on the configured security mode.
Security Mode
Description
Restrict
Drops the violating packets and logs the violation by generating an alarm.
Protect
Drops the violating packets but does not generate an alarm.
Shutdown
Places the interface into error-disabled (error-down) state and logs an alarm.
2. Matching Each Security Mode with Its Operation
* Protect Mode:
* The switch drops the packets from the unauthorized MAC address.
* No alarm is generated or logged.
* Correct Mapping: " Discards the packets that trigger static MAC address flapping only and does not report an alarm. "
* Restrict Mode:
* The switch drops the packets from the unauthorized MAC address.
* An alarm is generated and logged in the system.
* Correct Mapping: " Discards the packets that trigger static MAC address flapping and reports an alarm. "
* Shutdown Mode:
* The switch shuts down the interface by placing it into the error-down state.
* An alarm is generated and logged.
* Correct Mapping: " Sets the interface state to error-down and reports an alarm. "
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