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| Section | Weight | Objectives |
|---|---|---|
| WLAN Basics | 2% | - WLAN deployment and optimization - WLAN technology principles |
| OSPF Fundamentals | 16% | - OSPF configuration and optimization - OSPF special applications and troubleshooting - OSPF principles and operation mechanisms |
| Network Service and Management | 5% | - DHCP and DNS services - Network management and monitoring |
| BGP Fundamentals | 17% | - BGP route attributes and selection - BGP configuration and policy application - BGP characteristics and working principles |
| Routing and Traffic Control | 10% | - Route import and redistribution - Policy-based routing - Routing policy and filtering |
| IPv6 Technologies | 3% | - IPv6 address structure and configuration - IPv6 routing protocols |
| Network Solutions and Design | 5% | - Typical network architecture and solution - Enterprise network design principles |
| Routing Basics | 3% | - Routing concepts and classification - Routing table composition and selection rules |
| Network Reliability | 7% | - Device redundancy and link backup - BFD technology - VRRP protocol |
| Ethernet Switching Technologies | 7% | - VLAN principles and configuration - Spanning Tree Protocol - Link aggregation and stack technology |
| IS-IS Fundamentals | 8% | - IS-IS configuration and deployment - IS-IS protocol principles |
| Network Security | 8% | - ACL and packet filtering - AAA authentication - Attack defense and security policy |
| Multicast Technologies | 9% | - Multicast basic concepts - IGMP protocol - PIM protocol |
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NEW QUESTION # 155
See the following figure. All routers on the network run IS-IS and are in area 49.0001.
By referring to the LSDB of R1, the Level-2 DIS is. (Enter the device name, for example, R1.)
Answer:
Explanation:
R3
Explanation:
Understanding the LSDB and Level-2 DIS Election in IS-IS:
In IS-IS, theDesignated Intermediate System (DIS)is elected for both Level-1 and Level-2 on broadcast networks to manage the link-state database (LSDB) and reduce the number of LSAs exchanged.
The election of the DIS is based on thehighest priority.
If the priority is the same, the router with thehighest System IDbecomes the DIS.
HCIP-Datacom-Core Technology Training Material (IS-IS DIS Election).
Analyzing the LSDB:
From the LSDB ofR1, the Level-2 link-state database includes the following entries:
LSPID 0100.0000.3003.00-00: This is R3, and it is present in the Level-2 LSDB with the sequence number and checksum details.
Other routers (R1, R2, R4) are present but do not have the characteristics of the Level-2 DIS in this topology.
Based on the System IDs,R3 (0100.0000.3003)has the highest System ID, making it theLevel-2 DIS.
Conclusion:
The Level-2 DIS on the network isR3, based on the election rules and the LSDB information shown in the figure.
NEW QUESTION # 156
On an RSTP network, port priorities may be compared during root port or designated port election. Which of the following values is the default priority of a port on a Huawei switch?
Answer: B
Explanation:
Comprehensive and Detailed Step-by-Step Explanation:
1. Port Priority in RSTP:
* RSTP (Rapid Spanning Tree Protocol) elects root and designated ports based on port priority and port ID.
* Port priority is a configurable value that helps determine which port becomes the root or designated port when multiple ports are eligible.
* The port ID consists of the port priority and port number. When priorities are equal, the port number is used as a tiebreaker.
2. Default Port Priority on Huawei Switches:
* On Huawei switches, the default port priority is 128.
* This value can be adjusted in increments of 16 using the command stp port priority.
3. Analysis of Options:
Option A: 1
* Incorrect. This is not the default port priority value.
Option B: 128
* Correct. This is the default port priority value on Huawei switches.
Option C: 4096
* Incorrect. This is not a valid default port priority value.
Option D: 32768
* Incorrect. This is the default bridge priority, not the port priority.
4. Summary:
* The default port priority on Huawei switches is 128.
NEW QUESTION # 157
Which of the following protocols are multi-channel protocols?
Answer: B,D
Explanation:
Multi-channel protocols such as H.323 and FTP use separate control and data channels. H.323 uses different channels for call signaling and media streaming, while FTP uses a control channel for commands and a data channel for file transfers. Telnet and SMTP are single-channel protocols .
NEW QUESTION # 158
After STA roams in WLAN, if it wants to continue to access the home network, it can set the HAC or HAP as the home agent.
Answer: A
NEW QUESTION # 159
In IPsec , an SA (Security Association) is uniquely identified by three parameters . Which of the following parameters does not belong to the 3-tuple information?
Answer: B
NEW QUESTION # 160
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