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Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions (Q78-Q83):

NEW QUESTION # 78
Which of the following OSPF packets carries master-slave relationship information?

Answer: B


NEW QUESTION # 79
On a broadcast IS-IS network shown in the following figure, a DIS needs to be elected to create and update pseudonodes. Which of the following routers is elected as the DIS?

Answer: C

Explanation:
Understanding DIS Election in IS-IS:
On an IS-IS broadcast network, a Designated Intermediate System (DIS) is elected to create and update pseudonodes for efficient communication.
The election is based on the following criteria:
DIS Priority: The router with the highest priority is elected as the DIS.
Router ID (tie-breaker): If priorities are equal, the router with the highest Router ID is elected.
Analyzing the DIS Priorities and Router IDs:
R1: Priority = 64, Router ID = 1.1.1.1
R2: Priority = 1, Router ID = 2.2.2.2
R3: Priority = 127, Router ID = 3.3.3.3
R4: Priority = 10, Router ID = 4.4.4.4
Among the routers, R3 has the highest DIS priority (127), making it the DIS.
Correct Option:
Option B (R3): Correct, as R3 has the highest priority.
Option A (R1): Incorrect, as its priority is lower (64).
Option C (R4): Incorrect, as its priority is lower (10).
Option D (R2): Incorrect, as its priority is the lowest (1).
References:
HCIA-Datacom Study Guide, Chapter: IS-IS DIS Election
Huawei IS-IS Configuration and DIS Role Details
Category Breakdown
Number of
Category
Questions
Describe various fast convergence techniques of OSPF and IS-IS. 102
Understand check items in routine maintenance. 141
Use regular expressions during the configurations of AS_Path and community
1
filters.
Configure IPv6 static routes. 8
Analyze loop faults. 29
Learn about the networking modes of BGP RRs. 19
Understand the troubleshooting methods. 19
Use common maintenance tools. 7
Use AS_Path and community filters to control BGP routes. 43
Configure OSPF and IS-IS to advertise default routes. 2
Analyze failures to establish neighbor relationships of routing protocols. 2 Perform configurations of VLAN aggregation, MUX VLAN, and QinQ. 9 Understand basic MPLS concepts and terms. 1 Configure OSPF and IS-IS equal-cost routes. 2 Perform basic MPLS VPN configurations. 3 Perform basic configurations of BGP security. 1 Describe the application scenarios of OSPF forwarding address (FA). 1 Understand basic concepts of MPLS VPN. 1 Describe the extension of BGP to IPv6. 1 Describe the application scenarios of OSPF and IS-IS multi-process. 2 TOTAL 394


NEW QUESTION # 80
The existing R1 and R2 form a VRRP backup group with a VRID of 2. If the user wants to set R1 as the gateway for forwarding data in the backup group, which of the following configurations can be used to achieve this? (Multiple choice)

Answer: B,D


NEW QUESTION # 81
In order to ensure that both systems know the status changes, BFD uses a three-way handshake mechanism when establishing and tearing down the BFD state machine.

Answer: A


NEW QUESTION # 82
Which of the following TLVs is used by ISIS to describe the IP address of an interface?

Answer: C

Explanation:
In the IS-IS protocol, TLV 129 (IPv4 interface address) is used to describe the IP address of an interface.
Each TLV type carries specific information, and TLV 129 specifically relates to interface IP addresses .


NEW QUESTION # 83
......

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