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Huawei H12-831_V1.0 (HCIP-Datacom-Advanced Routing & Switching Technology V1.0) Certification Exam is an advanced-level certification exam offered by Huawei Technologies Co. Ltd. HCIP-Datacom-Advanced Routing & Switching Technology V1.0 certification exam is designed to validate the skills and knowledge of IT professionals in the area of advanced routing and switching technology. H12-831_V1.0-ENU Exam covers a wide range of topics including network design, routing protocols, switching technologies, and network security.
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Huawei H12-831_V1.0 Exam is a challenging exam that requires a deep understanding of routing and switching technologies, as well as the ability to apply that knowledge to real-world scenarios. Candidates must be able to analyze network requirements, select appropriate technologies, and design and implement solutions that meet those requirements.
NEW QUESTION # 113
Match the alarm severity to the severity of the fault and countermeasures
Answer: D
NEW QUESTION # 114
On the OSPF network shown in the figure, area 1 is an NSSA, area 2 is a common area, and R4 imports an external route 10.0.4.4/32. The router ID of each router is 10.0.X.X, where X is the router number. If the asbr-summary 10.0.4.0 255.255.255.0 command is run in the OSPF processes of R1 and R3, which of the following routers have the route 10.0.4.0/24 in their routing tables?
Answer: C,D
Explanation:
Step 1: Understanding OSPF Areas and Summarization
* Area 1 (NSSA - Not So Stubby Area)
* Allows external routes but converts Type-5 LSAs into Type-7 LSAs.
* External routes must be translated by an ABR into Type-5 LSAs before being propagated into other areas.
* Area 2 (Common Area - Regular OSPF Area)
* Supports both inter-area and external routes.
* asbr-summary 10.0.4.0 255.255.255.0 Command
* This command summarizes all external routes within 10.0.4.0/24 into a single summarized route.
* Since it is applied on R1 and R3, these routers will advertise 10.0.4.0/24 instead of 10.0.4.4/32 to their respective areas.
Step 2: Route Distribution Analysis
* R4 (Originating Router in NSSA - Area 1)
* R4 injects 10.0.4.4/32 as a Type-7 LSA into Area 1.
* R1 (ABR between Area 1 & Area 0, Summarizing Route)
* Since R1 is an ABR, it translates Type-7 LSAs from Area 1 into a summarized Type-5 LSA (10.0.4.0/24) for Area 0.
* # R1 has 10.0.4.0/24 in its routing table.
* R2 (Inside Backbone Area 0, No ASBR Summary Applied Here)
* R2 only receives Type-5 LSAs from R1 but does not summarize them.
* Since R2 is not explicitly summarizing, it will likely still see 10.0.4.4/32 rather than 10.0.4.0
/24.
* # R2 does not have 10.0.4.0/24.
* R3 (ABR between Area 0 & Area 2, Summarizing Route)
* R3 is also an ABR and has the asbr-summary 10.0.4.0/24 command configured.
* It will advertise the summarized route 10.0.4.0/24 into Area 2.
* # R3 has 10.0.4.0/24 in its routing table.
* R5 (Inside Area 2, No Direct Connectivity to External Routes)
* Since R3 summarizes 10.0.4.0/24, R5 (inside Area 2) will receive only summarized routes.
* # R5 has 10.0.4.0/24.
Final answer: # R1, R3 (Option A, C)
References:
* HCIP-Datacom-Advanced Routing & Switching Technology V1.0 - OSPF Route Summarization
* OSPF NSSA and Type-7 to Type-5 LSA Translation
NEW QUESTION # 115
Which of the following are the advantages of VLAN aggregation? (Multiple choice)
Answer: B,D
NEW QUESTION # 116
The link state value information between different ISIS processes of multiple routers is considered to be isolated.
Answer: B
NEW QUESTION # 117
On the network shown in the figure, single-hop BFD is configured on R1 and R2.
A network engineer finds that the BFD session goes down. To locate the fault, the network engineer queries the BFD configurations on R1 and R2.
According to the configuration information marked in the figure, it can be determined that mismatched time parameter settings on R1 and R2 cause the BFD session to go down.
Is this statement TRUE or FALSE?
Answer: A
Explanation:
Comprehensive and Detailed In-Depth Explanation:
To verify the correct answer, we need to analyze Bidirectional Forwarding Detection (BFD) behavior and the provided configuration.
1. Understanding BFD Configuration Parameters
BFD (Bidirectional Forwarding Detection) is a protocol used for fast failure detection between directly connected devices.
Key Configuration Parameters in BFD:
* Peer IP (bind peer-ip)
* This specifies the destination router's IP address for the BFD session.
* # Correctly configured on both R1 and R2.
* Discriminator Local/Remote (discriminator local X / remote Y)
* These values must match between the two routers.
* # Correctly configured (R1: local 1, remote 2; R2: local 2, remote 1).
* Min-TX Interval (min-tx-interval)
* Defines the minimum transmit interval for BFD packets.
* # Missing from R2's configuration (could be a cause for mismatch).
* Min-RX Interval (min-rx-interval)
* Defines the minimum receive interval for BFD packets.
* # Missing from R2's configuration (could be a cause for mismatch).
2. Analyzing the Configuration on R1 and R2
# Configuration on R1 (Correct)
shell
CopyEdit
bfd tor2 bind peer-ip 10.0.12.2
discriminator local 1
discriminator remote 2
min-tx-interval 1500
min-rx-interval 1500
* This configuration is correct.
# Configuration on R2 (Incomplete)
shell
CopyEdit
bfd tor1 bind peer-ip 10.0.12.1
discriminator local 2
discriminator remote 1
* Missing min-tx-interval and min-rx-interval.
3. Why the Answer is FALSE?
* A BFD session does NOT go down due to mismatched timing parameters.
* BFD dynamically negotiates timing values, meaning even if R2 is missing min-tx/min-rx values, the session should still establish.
* However, the session will fail if the peer IP or discriminator values are incorrect (which they are NOT in this case).
* The actual cause of failure in this case is likely the missing min-tx and min-rx settings on R2, NOT a mismatch between R1 and R2.
NEW QUESTION # 118
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