NO.70 As shown in the figure, OSPF is enabled on all the routers. The IP address marked in the figure is the IP address of the loopbackO interface of the device. The LoopbackO of R1 and R2 is advertised in area 1, the LoopbackO of R4 is advertised in area 0, and the LoopbackO of R3 and R5E is advertised in area 0. In area 2, which of the following IP addresses can ping each other?

NO.71 The Router LSA of a router is shown in the figure. Which of the following statements is wrong?

NO.72 (Connection question) Please correspond the alarm level with the importance of the fault and the countermeasures. (Multiple choice)

NO.73 Which of the following information can the DHCP binding table contain?

NO.74 To prevent hackers from attacking user devices or networks through MA, C addresses, you can configure the MA, C addresses of untrusted users as black hole MA, C addresses to filter out illegal MA, C addresses.

NO.75 As shown in the figure, which of the following statement is correct? (Multiple choice)

NO.76 As shown in the figure, the cost value of the link that all interfaces of the router enable DSPF is identified in the figure.

The Loopback D interface of R2 is advertised in area 1. Then the cost value of R1 to 10.2/32 is:

NO.77 Which of the following is not a hardware preparation item for cutover?

NO.78 (Connection question) Please match the command with the realized function.

NO.79 The ORF function of BGP can control the routing entries sent by neighbors. In order to achieve this purpose, the BGP router will send the list of routes to be filtered to the neighbors. Which tool is generally used to send the list to the neighbors?

NO.80 Which of the following regular expressions can match only BGP routes that pass through AS200 and then through AS300 eyes?

NO.81 If faced with a complex network failure, and it is estimated that the troubleshooting cannot be completed in a short period of time, and the user urgently needs to restore the availability of the network, then the correct approach is.

NO.82 (Drag and drop) As shown in the figure, there is a message containing three-layer label headers. Please select the corresponding values of the X, Y, and Z fields in the figure. (Decimal)

NO.83 (Connection) The default MPLS label release method and label distribution control method of Huawei routers and label retention methods are respectively

NO.84 Which of the following functions will affect BGP neighbor establishment? (Multiple choice)

NO.85 As shown in the figure, 0SPF is enabled on all interfaces of the router. The cost value of the link is marked in the figure, R2’s LoogbackO is advertised by mouth in area 0, then in In area 1, both R2 and R3 transmit the routing information of 10.0.2.2/32 in the form of Typae3 LSA.

NO.86 In an MPLS domain, LSR can be divided into Ingress LSR, Transit LSR and Egress LSR according to the different processing methods of LSRs for dat a. For the same FEC. a certain LSR can be the Ingress LSR of the FEC or the Transit LSR of the FEC. LSRO

NO.87 As shown in the figure, Client1 and Client2 act as clients of RR1 and RR2 at the same time, and RR1 and RR2 are in the same In a Cluster, R introduces 10 routes. It is assumed that the configuration of B, CP is correct. Neighbor relations have been established Now, how many routing entries exist in the BGP routing table of Client2?

NO.88 IS-IS is a link state routing protocol that uses the SPF algorithm for routing calculations. A park has deployed IPv4 and IPv6 at the same time and runs IS-IS to achieve network interconnection. As shown in the figure, the network IPv4 and IPv6 have the same overhead, and R1 and R4 only support IPv4. By default, in the calculated IPv6 shortest path tree, the next hop device for R2 to access R6 is () (Note: The device name must be consistent with the figure, such as: R1)

NO.89 BGP routing policies can control the advertisement and reception of routes.

NO.90 As shown in the figure, in a medium-sized network, BGP generally deploys dual RRs to improve R reliability. When deploying dual RRs, the ClusterIDs of the two RRs are generally set to be the same. What is the reason for this?

NO.91 Regarding the role of ping and tracert, which of the following statements is correct?