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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Network O&M | 7% | - Network monitoring and management tools - Performance optimization and capacity planning |
| Topic 2: Advanced IGP Features | 17% | - IS-IS advanced features and convergence - OSPF advanced features and optimization - IGP route selection and control |
| Topic 3: Advanced Ethernet Technologies | 10% | - VLAN stacking and QinQ - Ethernet OAM and protection mechanisms - Advanced link aggregation and reliability |
| Topic 4: Network Cutover and Migration | 7% | - Migration strategies and risk control - Service switchover and verification |
| Topic 5: Advanced BGP Features | 10% | - BGP path control and filtering - Route reflectors and confederations - BGP route attributes and policies |
| Topic 6: MPLS Technologies | 19% | - MPLS basics and label distribution - MPLS protection and fast reroute - MPLS VPN and traffic engineering |
| Topic 7: IPv6 Routing | 20% | - BGP4+ and IPv6 route deployment - IPv6 addressing and transition technologies - OSPFv3 and IS-IS for IPv6 |
| Topic 8: Network Troubleshooting | 10% | - Troubleshooting routing and switching issues - Fault diagnosis and analysis methods |
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NEW QUESTION # 119
Which of the following is not added for IS-IS to support IPv6 route processing and calculation?
The source IP address of IS-IS Hello packets is changed to the link-local address.
TLV 232, which is equivalent to the IP Interface Address TLV in IPv4, except that the original 32-bit IPv4 address is changed to a 128-bit IPv6 address.
Answer: A
Explanation:
The option lettering in the supplied question is malformed. In the standard option order, the source-IP statement is option B, and it is the item that was not added for IS-IS IPv6.
Unlike OSPFv3, IS-IS operates directly over the data-link layer rather than being encapsulated in IPv4 or IPv6. Consequently, an IS-IS Hello PDU does not have an IP header or an IP source address that could be changed to an IPv6 link-local address.
To support IPv6 route processing, IS-IS was extended with the following information:
* TLV 232 - IPv6 Interface Address: Carries one or more 128-bit IPv6 interface addresses.
* TLV 236 - IPv6 Reachability: Carries IPv6 prefixes, metrics and reachability attributes.
* IPv6 NLPID: The value 142 (0x8E) identifies IPv6 as a supported network-layer protocol and is carried when IPv6 reachability is advertised.
Therefore, TLV 232, TLV 236 and the IPv6 NLPID are valid IS-IS IPv6 extensions. Changing an IS-IS Hello packet's source IP address is not one of them. Huawei IS-IS documentation
NEW QUESTION # 120
In the network shown in the figure, R1, R2, R4, and R5 run IS-IS, and the area number is
49.0001. R3 and R6 run IS-IS, and the area number is 49.0002. Inside AS65000, R1, R3, R4, and R6 all establish IBGP neighbor relationships with R2 and R5, of which R2 and R5 are RRs and R1, R4, R3, and R6 are clients. IBGP neighbor relationships are all established using the Loopback0 interface. The IP address of the Loopback0 interface of each device is 10.0.X.X/32, and the Router ID is 10.0.XX, where X is the device number. R1 and R4 introduce the external network 192.168.1.0/24 into BGP through the import method, and R3 and R6 introduce the external network 192.168.2.0/24 into BGP through the import method.
By default, which of the following descriptions are correct? (Multiple choice)
Answer: A,B,D
NEW QUESTION # 121
Type 7 LSAs, used to describe imported external routes, were introduced to support NSSAs. They are generated by autonomous system boundary routers (ASBRs) in NSSAs. The flooding scope of Type 7 LSAs is similar to that of Type 5 LSAs. That is, besides being flooded to common areas and stub areas, Type 7 LSAs are also flooded to all NSSAs on the OSPF network.
Answer: B
Explanation:
OSPF uses Type 7 Link-State Advertisements (LSAs) to describe external routing information originating within a Not-So-Stubby Area (NSSA). An ASBR inside an NSSA can redistribute external routes and advertise them using Type 7 LSAs.
However, Type 7 LSAs have area-local flooding scope. They are distributed only throughout the NSSA in which they originate, not throughout all NSSAs or ordinary OSPF areas.
An NSSA Area Border Router (ABR) can translate eligible Type 7 LSAs into Type 5 AS-External LSAs.
These Type 5 LSAs can then be advertised throughout the appropriate non-stub portions of the OSPF autonomous system.
Stub areas do not accept Type 5 external LSAs, and Type 7 LSAs are not flooded into other areas.
Consequently, the statement incorrectly describes the flooding scope of Type 7 LSAs and is FALSE.
HCIP-Datacom-Advanced Routing & Switching Technology V1.0 Training Material.pdf
NEW QUESTION # 122
Port security is achieved by converting the dynamic MAC address learned by the interface into a secure MAC address, including secure dynamic MAC, secure static MAC and sticky MAC. Which of the following descriptions about secure MAC addresses are correct? (Multiple choice)
Answer: A,C,D
NEW QUESTION # 123
IGP converges faster than BGP, which may cause network traffic loss. By enabling the OSPF and BGP linkage feature of the device, the device can keep the OSPF and BGP linkage during the set linkage time.____The router makes the link metric value in the LSA advertised to be the maximum value, so as to inform other OSPF devices not to use this router to forward data, so as to avoid traffic loss. (Note: If English letters are involved, all uppercase)
Answer:
Explanation:
STUBROUTER
NEW QUESTION # 124
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