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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Network Cutover | 7% | - Post-cutover validation - Pre-cutover verification - Implementation and rollback strategy - Cutover planning and risk assessment |
| Topic 2: Network O&M | 7% | - Configuration management and backup - Network monitoring and performance analysis - Routine maintenance procedures - Log and alarm management |
| Topic 3: IPv6 Routing | 20% | - Transition mechanisms (dual-stack, tunnel, translation) - BGP4+ for IPv6 - IPv6 address planning and configuration - OSPFv3 and IS-IS for IPv6 |
| Topic 4: Advanced BGP Features | 10% | - BGP multi-homing and load balancing - Routing policies and filtering - Route reflectors and confederations - BGP route selection and attributes |
| Topic 5: MPLS Technologies | 19% | - MPLS VPN (L3VPN, L2VPN) - MPLS OAM and protection - MPLS fundamentals and label distribution - LDP and RSVP-TE protocols |
| Topic 6: Advanced IGP Features | 17% | - OSPF advanced features
|
| Topic 7: Network Troubleshooting | 10% | - Routing protocol fault diagnosis - Switching and link fault handling - Structured troubleshooting methodology - Performance and service fault resolution |
| Topic 8: Advanced Ethernet Technologies | 10% | - QinQ and VLAN mapping - Port isolation and security features - VLAN aggregation and MUX VLAN - Ethernet link aggregation and reliability |
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NEW QUESTION # 32
In the network shown in the figure, IS-IS IPv6 runs between R2, R6, and R3, and the IPv6 address of R6 Looback0 interface is 2000::6/128. Other links run OSPFv3, area 1 is a Stub area, and area 2 is an NSSA area.
IS-IS routes are imported into OSPFv3 on R2 and R3. Which of the following descriptions are wrong? (Multiple choice)
Answer: A,B,C,D
NEW QUESTION # 33
The Router LSA of a router is shown in the figure. Which of the following statements is wrong?
Answer: B
NEW QUESTION # 34
On the OSPFv3 network shown in the figure:
* Area 1 is a stub area
* Area 2 is a common area
* Area 3 is an NSSA
* The IPv6 address of Loopback0 on R6 is 2000::6/128.
* The router ID of each router is 10.0.X.X, where X is the router number.
Which of the following statements are true?
Answer: A,B
Explanation:
Comprehensive and Detailed In-Depth Explanation:
To determine the correct answers, we need to analyze OSPFv3 behavior and Inter-Area-Prefix LSAs (Type 3 LSAs).
1. Understanding OSPFv3 Inter-Area-Prefix LSAs (Type 3 LSAs)
* Type 3 LSAs (Inter-Area-Prefix LSAs) are generated by an ABR (Area Border Router) to advertise networks between areas.
* If a router in one area learns a prefix from another area, it generates a Type 3 LSA to advertise it further.
* Stub areas (Area 1) do not allow external LSAs, including Type 3 LSAs for external routes.
* NSSA areas (Area 3) accept external routes but redistribute them as Type 7 LSAs before being converted to Type 5 LSAs by an NSSA ABR.
2. Analyzing Each Answer Option:
# A. " The Inter-Area-Prefix-LSA that is generated by R1 and describes 2000::6/128 exists in Area 0. " # TRUE
* R6 has 2000::6/128 in Area 2.
* R2 is the ABR that brings this prefix into Area 0 as a Type 3 LSA.
* R1, being in Area 0, learns this LSA from R2.
* Thus, this statement is correct.
# B. " The Inter-Area-Prefix-LSA that is generated by R1 and describes 2000::6/128 exists in Area 3. " # FALSE
* R1 is not an ABR for Area 3, so it does not generate an LSA for 2000::6/128 in Area 3.
* Instead, R3 (the ABR between Area 0 and Area 3) would be responsible for propagating routes.
* This statement is false.
# C. " The Inter-Area-Prefix-LSA that is generated by R2 and describes 2000::6/128 exists in Area 1. " # FALSE
* Area 1 is a stub area and does not accept external LSAs (including Type 3 LSAs from other areas).
* R2 cannot generate and send a Type 3 LSA for 2000::6/128 into Area 1.
* This statement is false.
# D. " The Inter-Area-Prefix-LSA that is generated by R3 and describes 2000::6/128 exists in Area 2. " # TRUE
* R3 is an ABR and learns 2000::6/128 from R2 (which originally learned it from R6 in Area 2).
* Since Area 2 is a normal (non-stub, non-NSSA) area, Type 3 LSAs are allowed.
* R3 generates and advertises this Inter-Area-Prefix-LSA for 2000::6/128 into Area 2.
* Thus, this statement is correct.
NEW QUESTION # 35
On the network shown in the figure, the DHCP server function is enabled on GEO/0/0 of R2, and the address pool is an interface address pool. When GEO/0/0 and GEO/0/1 of R1 function as DHCP clients, only one interface can obtain an IP address by default.
Answer: B
NEW QUESTION # 36
Which of the following statements about the OSPFv3 message format is correct? (Multiple choice)
Answer: A,B,C
NEW QUESTION # 37
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