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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Layer 2 Technologies | 20% | - STP/RSTP/MSTP protocols - VRRP and BFD - Link aggregation and redundancy - Ethernet and VLAN principles |
| Topic 2: Network Design, Operation and Troubleshooting | 10% | - Network monitoring and management - Large-scale network architecture design - Fault diagnosis and resolution |
| Topic 3: Network Security and QoS | 10% | - ACL, security policy and AAA - Attack defense and traffic filtering - QoS models, classification and scheduling |
| Topic 4: IPv6 and Multicast | 15% | - OSPFv3 and BGP4+ - IPv6 addressing and transition mechanisms - IGMP and PIM multicast protocols |
| Topic 5: MPLS and VPN Technologies | 15% | - MPLS architecture and label switching - MPLS L3VPN and L2VPN - IPsec and VPN security |
| Topic 6: IPv4 Routing Protocols | 30% | - Routing policies and route control - OSPFv2 principles and advanced configuration - BGP route attributes and selection - IS-IS protocol deployment and optimization |
1. BGP 4+ runs between the two routers. The neighbor relationship is normal. However, the BGP routing table of the local router does not have neighbor's routing entry. What is the possible reason? (Multiple Choice)
A) The routing entries of the peer BGP routing table are non-optimal.
B) The next hop address of the BGP routing entry is unreachable.
C) Peer ignore configured on the peer
D) Active-route-advertise configured on the peer
2. Huawei's two switches, SWA and SWB, are connected through seven Ethernet ports and are configured with static link aggregation. The corresponding ports on the switch SW are Ethernet 1/0/2, Ethernet 1/0/3, Ethernet 1/0/4, and Ethernet 1/0/5, Ethernet 1/0/6, and Ethernet 1/0/7. The configuration mode is configured in the order of the ports. If the switch SWA and SWB support only 6 ports in each aggregation group.
A) Ethernet1/0/6 Unselected port with consistent port configuration
B) Ethernet1/0/1 Unselected port when the configurations of the ports are the same
C) In the case that the configurations of the ports are the same, the SWA randomly selects one of the seven ports as the aggregation group Unselected port.
D) Ethernet1/0/7 Unselected port with consistent port configuration
3. The administrator wants to manage some routes on the router during operation and maintenance. Which of the following tools can mark these routes so that the administrator can configure the policy? (Multiple choice)
A) Use ip-prefix to mark the route on the router.
B) Mark the route on the router using the Tag value.
C) Use ACLs to mark routes on the router.
D) If the BGP protocol is running, use the community attribute to mark the route.
4. Which of the following description about the CHAP authentication function in the PPP protocol is correct? (Multiple Choice)
A) Calculate a Hash value by the MD5 algorithm using the authentication sequence ID, random number and key
B) If the authenticator does not configure a username, the password cannot be configured on the authenticated interface.
C) Three-message interactive authentication is required, and the username is transmitted only on the network without transmitting the password.
D) The user name must be configured under the authenticated interface of CHAP authentication.
5. Which of the following statement about the LSA of OSPFv33 is correct?
A) Inter-Area-Prefix LSA also contains Link-Local information.
B) When the Intra-Area Prefix LSA is Referenced Link State Type-2, the Referenced Link State id contains the interface id of the DR.
C) Router-LSA and Network-LSA do not contain routing information.
D) The Link State id of the Inter-Area Prefix-LSA contains the prefix information.
Solutions:
| Question # 1 Answer: A,B,D | Question # 2 Answer: D | Question # 3 Answer: B,D | Question # 4 Answer: A,C,D | Question # 5 Answer: B,C |
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