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| Section | Weight | Objectives |
|---|---|---|
| BGP Fundamentals | 17% | - BGP configuration and policy application - BGP characteristics and working principles - BGP route attributes and selection |
| IPv6 Technologies | 3% | - IPv6 address structure and configuration - IPv6 routing protocols |
| Network Service and Management | 5% | - Network management and monitoring - DHCP and DNS services |
| OSPF Fundamentals | 16% | - OSPF principles and operation mechanisms - OSPF configuration and optimization - OSPF special applications and troubleshooting |
| Multicast Technologies | 9% | - PIM protocol - IGMP protocol - Multicast basic concepts |
| Network Solutions and Design | 5% | - Enterprise network design principles - Typical network architecture and solution |
| Routing and Traffic Control | 10% | - Routing policy and filtering - Policy-based routing - Route import and redistribution |
| Ethernet Switching Technologies | 7% | - Link aggregation and stack technology - Spanning Tree Protocol - VLAN principles and configuration |
| IS-IS Fundamentals | 8% | - IS-IS configuration and deployment - IS-IS protocol principles |
| WLAN Basics | 2% | - WLAN technology principles - WLAN deployment and optimization |
| Routing Basics | 3% | - Routing concepts and classification - Routing table composition and selection rules |
| Network Security | 8% | - Attack defense and security policy - ACL and packet filtering - AAA authentication |
| Network Reliability | 7% | - VRRP protocol - BFD technology - Device redundancy and link backup |
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NEW QUESTION # 309
If as shown, the four switches have been running and converged to complete the spanning tree calculation, and all port costs of the ST3 port are now set to 20000, then which of the following descriptions are correct? (Multiple choice)
Answer: A,C
NEW QUESTION # 310
Which three transmission modes are supported for IPv4 packets?
Answer: A,B,C
Explanation:
IPv4 supports three main transmission modes:
Unicast: One-to-one communication.
Broadcast: One-to-all communication within a network.
Multicast: One-to-many communication to a group of interested receivers.
Anycast is not a native IPv4 mode but is introduced in IPv6.
NEW QUESTION # 311
During BGP route summarization configuration, the keyword can be used to suppress all specific routes so that only the summary route is advertised. The summary route carries the Atomic-aggregate attribute rather than the community attributes of specific routes.
Answer:
Explanation:
suppress-spec-map
Explanation:
Understanding BGP Route Summarization:
* In Border Gateway Protocol (BGP), route summarization is a technique used to aggregate multiple specific prefixes into a broader summary prefix. This reduces the size of routing tables and improves routing efficiency.
* Summarization helps to hide unnecessary details from other parts of the network while still maintaining connectivity.
* HCIP-Datacom-Core Technology Training Material (BGP Route Summarization).
Suppressing Specific Routes:
When summarizing routes, the suppress-spec-map keyword is used to suppress specific prefixes so that only the summarized route is advertised.
The suppressed routes are not advertised to BGP peers; instead, only the summary route is propagated.
Reference: HCIP-Datacom Advanced Routing & Switching Technology (BGP Attributes and Summarization Techniques).
Atomic-Aggregate Attribute:
The summary route generated during BGP route summarization carries the Atomic-aggregate attribute. This attribute indicates that the summary route might not provide the exact path information available in the original specific routes.
Additionally, when using the suppress-spec-map option, the specific routes' attributes, such as community attributes, are not included in the summary route.
Reference: HCIP-Datacom-Core Technology Training Material (BGP Path Attributes).
Conclusion:
The suppress-spec-map keyword is used to suppress specific routes when performing BGP summarization.
The summarized route includes the Atomic-aggregate attribute but does not carry community attributes from the suppressed routes.
NEW QUESTION # 312
Which of the following characteristics meet the following conditions. A BCP router may not support these attributes, but it will still receive such attributes and pass them on to other peers. (Multiple choice)
Answer: B,C
NEW QUESTION # 313
The default value of the ospf dr-prioritye command is 1, and the value range is 0~255.
Answer: B
NEW QUESTION # 314
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