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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Network Reliability | 7% | - Device redundancy and link backup - BFD technology - VRRP protocol |
| Topic 2: BGP Fundamentals | 17% | - BGP route attributes and selection - BGP characteristics and working principles - BGP configuration and policy application |
| Topic 3: Network Solutions and Design | 5% | - Enterprise network design principles - Typical network architecture and solution |
| Topic 4: Routing Basics | 3% | - Routing table composition and selection rules - Routing concepts and classification |
| Topic 5: Network Security | 8% | - AAA authentication - Attack defense and security policy - ACL and packet filtering |
| Topic 6: IPv6 Technologies | 3% | - IPv6 address structure and configuration - IPv6 routing protocols |
| Topic 7: IS-IS Fundamentals | 8% | - IS-IS protocol principles - IS-IS configuration and deployment |
| Topic 8: OSPF Fundamentals | 16% | - OSPF special applications and troubleshooting - OSPF configuration and optimization - OSPF principles and operation mechanisms |
| Topic 9: Network Service and Management | 5% | - DHCP and DNS services - Network management and monitoring |
| Topic 10: WLAN Basics | 2% | - WLAN deployment and optimization - WLAN technology principles |
| Topic 11: Multicast Technologies | 9% | - PIM protocol - IGMP protocol - Multicast basic concepts |
| Topic 12: Ethernet Switching Technologies | 7% | - Spanning Tree Protocol - VLAN principles and configuration - Link aggregation and stack technology |
| Topic 13: Routing and Traffic Control | 10% | - Routing policy and filtering - Route import and redistribution - Policy-based routing |
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NEW QUESTION # 118
Which of the following operations can PBR (Policy-Based-Route) perform? (Multiple choice)
Answer: C,D
NEW QUESTION # 119
When a routing policy is used to filter routes, which of the following route prefixes will be denied by the IP prefix below?
Answer: B,D
Explanation:
The prefix list permits the prefix 1.1.1.1/24 with a mask length greater than or equal to /26 and less than or equal to /32. This means only prefixes with the base 1.1.1.1 and mask lengths between /26 and /32 will be permitted. Routes like 1.1.1.2/16 and 1.1.1.1/24 do not meet the mask length criteria, so they will be denied.
Conversely, routes like 1.1.1.1/26 and 1.1.1.1/32 satisfy the condition and will be permitted .
NEW QUESTION # 120
As shown in the figure, a set of TCP data flows are transmitted between the Trust zone and the Untrust zone of the stateful firewall.
According to the analysis of the message content in the figure, which of the following data flows will be blocked by the firewall?
Answer: A
NEW QUESTION # 121
R1, R2, R3, and R4 run IS-IS, and the DIS priorities of their interfaces are shown in the following figure. If all these devices are started simultaneously, will be elected as the DIS. (Enter the device name, for example, R1.)
Answer:
Explanation:
R4
* DIS Election in IS-IS:
* In IS-IS, the Designated Intermediate System (DIS) is elected on broadcast networks to reduce the number of LSAs exchanged and maintain the LSDB.
* The DIS is elected based on priority:
* The router with the highest priority is elected as the DIS.
* If priorities are equal, the System ID is used as a tie-breaker, and the router with the highest System ID becomes the DIS.
* HCIP-Datacom-Core Technology Training Material (IS-IS DIS Election Mechanism).
Given DIS Priorities:
R1: Priority = 10
R2: Priority = 20
R3: Priority = 30
R4: Priority = 40
R4 has the highest DIS priority of 40, which makes it the clear choice for DIS election.
Scenario Details:
Since all devices are started simultaneously, the DIS election process will follow the priorities without requiring a tie-breaker (System ID).
Conclusion:
The device with the highest DIS priority is R4, and it will be elected as the DIS.
NEW QUESTION # 122
A network runs IS-IS. The LSP information of a router R4 in the network is shown in the figure.
Which of the following statements is correct? (Multiple choice)
Answer: A,B,C
NEW QUESTION # 123
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