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| Section | Objectives |
|---|---|
| Topic 1: Ethernet Switching Technology | - Switching Fundamentals
|
| Topic 2: Network Solutions | - Enterprise Network Solutions
|
| Topic 3: WLAN | - Wireless Networking
|
| Topic 4: Multicast | - IP Multicast Technologies
|
| Topic 5: IPv6 | - IPv6 Fundamentals
|
| Topic 6: BGP | - BGP Technologies
|
| Topic 7: Network Security | - Security Technologies
|
| Topic 8: OSPF | - OSPF Fundamentals
|
| Topic 9: Network Service and Management | - O&M Technologies
|
| Topic 10: IS-IS | - IS-IS Fundamentals
|
| Topic 11: Routing Basics | - IP Routing Fundamentals
|
| Topic 12: Routing and Traffic Control | - Traffic Management
|
| Topic 13: Network Reliability | - Reliability Technologies
|
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NEW QUESTION # 333
In BGP, the Origin attribute is used to identify the origin of a route. Which of the following statements are true about the Origin attribute?
Answer: A,B,C
Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
* Definition of the Origin Attribute:
* The Origin attribute is a well-known mandatory attribute used to indicate the source of a route. It has three possible values:
* i (IGP): The route was injected into BGP using the network command.
* e (EGP): The route was learned from an EGP protocol (not commonly used now).
* ? (Incomplete): The route was redistributed into BGP from another routing protocol.
* Analysis of Each Option:
* Option A: Correct. When the network command is used, the Origin is set to i (IGP).
* Option B: Incorrect. Routes learned from EGP have the Origin attribute set to e (EGP), not ?
(Incomplete).
* Option C: Correct. BGP prefers routes with the Origin attribute in the order: IGP > EGP > Incomplete.
* Option D: Correct. The Origin attribute is a well-known mandatory attribute.
References:
* HCIA-Datacom Study Guide, Chapter: BGP Attributes
* Huawei BGP Attribute Comparison
NEW QUESTION # 334
In the VRP system, which of the following commands can enable the OSPF router to generate a default route?
Answer: D
NEW QUESTION # 335
Router A and Router B are directly connected, OSPF is enabled and the port network type is broadcast.
If the two routers establish an adjacency relationship, which of the following items are necessary? (Multiple choice)
Answer: A,B,C,E
NEW QUESTION # 336
VRF, also called VPN instance, is a network virtualization technology that helps VPN technology to isolate users. In normal cases, multiple VPN instances can be created on a physical device, and each VPN instance has independent entries. Which of the following resources can be independently owned by a VPN instance?
Answer: B,C,D
Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
1. What is VRF (Virtual Routing and Forwarding)?
* VRF is a network virtualization technology that enables multiple isolated routing tables to coexist on a single physical device.
* Each VRF instance is independent, which ensures separation between different VPNs or users.
2. Resources That VRF Can Independently Own:
Option A: Interface
* Correct.
* Each VRF instance can have its own set of interfaces. These interfaces are bound to a specific VRF, isolating traffic at the physical or logical port level.
Option B: Routing table
* Correct.
* VRF instances maintain independent routing tables. This ensures that routes for one VPN do not overlap or interfere with routes of another VPN.
Option C: MAC address table
* Incorrect.
* The MAC address table is part of Layer 2 operations and is shared by all VRF instances on the device.
VRF operates at Layer 3 and does not isolate MAC address tables.
Option D: Routing protocol process
* Correct.
* Each VRF instance can run its own routing protocol processes (e.g., OSPF, BGP), and these processes are completely independent of other VRF instances.
3. Summary:
* The correct resources that can be independently owned by a VRF instance are Interface, Routing Table
, and Routing Protocol Process.
NEW QUESTION # 337
A switch runs MSTP. The configuration is shown in the figure.
What is the role of this switch in MSTI 1?
Answer: A
Explanation:
Based on the MSTP configuration shown, the role of the switch in MSTI 1 cannot be determined without additional details about the topology or priority values of other switches in the instance. The role could be a root switch, secondary root, or non-root, depending on these factors.
NEW QUESTION # 338
......
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