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Last Updated: Aug 18, 2026
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| Section | Objectives |
|---|---|
| Topic 1: Network Security and Management | - Basic network security
|
| Topic 2: Routing Protocols | - OSPF
|
| Topic 3: IP Network Fundamentals | - TCP/IP model and IP addressing
|
| Topic 4: Switching Technologies | - VLAN and Trunking
|
| Topic 5: Network Services | - DHCP and NAT
|
1. When OSPFv2 evolves to OSPFv3, the LSA format and function are exactly the same, except that the network layer address in the LSA changes from IPv4 to IPv6.
A) True
B) False
2. An engineer uses 2 routers to test the IPV6 service, and runs the BGP4+ module to communicate with the branch. As shown in the figure, an engineer captures packets to view the Update message sent by R1. Which of the following statements is true about the description of the message information? (Multiple choice)
A) Only one BGP attribute is described in this packet: multi-protocol unreachable NLRI attribute
B) This packet describes the currently withdrawn IPv6 route
C) The next hop address of the route described in this packet is: 2001
D) The maximum length before the routing address described in this packet is: 2001
3. As long as both parties A and B are present at the project acceptance meeting, no third party is required.
A) FALSE
B) TRUE
4. Which of the following WAN links are part of a packet switched network? (Multiple choice)
A) PSIN
B) ISDN
C) MSTP
D) ATM
E) X.25
5. In the DU label distribution mode, if the Liberal retention mode is adopted, the device will retain the labels distributed by all LDP peers, regardless of whether the LDP peer is the optimal next hop to the destination network segment.
A) FALSE
B) TRUE
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: A,B,D | Question # 3 Answer: A | Question # 4 Answer: D,E | Question # 5 Answer: B |
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