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| Section | Objectives |
|---|---|
| IPv6 | - IPv6 Fundamentals
|
| BGP | - BGP Technologies
|
| Ethernet Switching Technology | - Switching Fundamentals
|
| Network Security | - Security Technologies
|
| Network Solutions | - Enterprise Network Solutions
|
| Network Service and Management | - O&M Technologies
|
| OSPF | - OSPF Fundamentals
|
| Network Reliability | - Reliability Technologies
|
| Multicast | - IP Multicast Technologies
|
| WLAN | - Wireless Networking
|
| Routing Basics | - IP Routing Fundamentals
|
| Routing and Traffic Control | - Traffic Management
|
| IS-IS | - IS-IS Fundamentals
|
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NEW QUESTION # 245
As shown in the figure, when R2 passes the route of 10.0.1.0/24 to R3, which of the following is the Next_Hop address of the route?
Answer: D
NEW QUESTION # 246
On an OSPF network, if a router functions as an ABR, the router must also be a BR.
Answer: B
Explanation:
Comprehensive and Detailed in-depth Step-by-Step Explanation:
To answer this question, we need to understand the roles of OSPF routers:
Area Border Router (ABR):
An ABR is a router that connects multiple OSPF areas. It has at least one interface in the backbone area (Area
0) and one or more interfaces in other OSPF areas.
The ABR performs summarization between areas and propagates routing information between them.
Backup Router (BR):
The term "BR" does not exist in OSPF terminology. Instead, OSPF uses the term "Backup Designated Router (BDR)." The BDR is a backup to the Designated Router (DR) in a specific OSPF broadcast or NBMA (Non- Broadcast Multi-Access) network. The BDR takes over the DR's responsibilities if the DR fails.
Key Clarification:
An ABR is related to the hierarchical structure of OSPF areas and is not tied to the DR/BDR election process.
A router can function as an ABR without ever being a DR or BDR, as these are separate roles.
Therefore, the statement that an ABR must also be a BR isFALSE.
References:
Huawei HCIA-Datacom Study Guide, Chapter on "OSPF Fundamentals".
RFC 2328 - OSPF Version 2.
Huawei OSPF Configuration Guide.
NEW QUESTION # 247
In the OSPF protocol, inter-area route calculation involves only Router LSA, Network LSA, and Summary LSA.
Answer: A
Explanation:
Inter-area route calculation in OSPF involves Summary LSAs (Type 3) for summarizing routes across areas and ASBR Summary LSAs (Type 4) for locating ASBRs. While Router LSAs and Network LSAs describe the internal structure of an area, they do not directly participate in inter-area route calculation. Thus, the statement that only Router, Network, and Summary LSAs are involved is false .
NEW QUESTION # 248
The administrator of an enterprise configures SNMPv3 on a device for communicating with the NMS (Network Management System). After the configuration is complete, the display trapbuffer command output shows that there are traps in the trap buffer of the information center, but the NMS does not receive any of them. Which of the following may cause this problem?
Answer: A,B
Explanation:
Comprehensive and Detailed In-Depth Explanation:
* SNMP (Simple Network Management Protocol) v3 is a more secure version of SNMP, supporting authentication and encryption.
* If the NMS is not receiving SNMPv3 traps, possible causes include:
* A. FALSE # The SNMP version mismatch does not affect traps; devices can send SNMPv2 traps even when using SNMPv3.
* B. TRUE # If the SNMPv3 password is incorrect, authentication will fail, and traps will not be processed by the NMS.
* C. FALSE # The size of packets sent by the NMS does not affect incoming SNMP traps from the router.
* D. TRUE # The community name must match on both the NMS and the router, or traps will be ignored.
# Reference: Huawei HCIA-Datacom Study Guide, SNMPv3 Configuration and Authentication.
NEW QUESTION # 249
The Interface \P address and VRRP virtual IP address can be the same.
Answer: B
Explanation:
BFD control packets are encapsulated in UDP packets, and the destination port number for multi-hop BFD control packets is 4784. This is a standardized port for multi-hop BFD operation .
NEW QUESTION # 250
......
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