Practice Free H12-891_V1.0-ENU Exam Online Questions
Regarding the description of configuring the security level of the firewall security zone, which of the following statements is correct?
- A . For the newly created security zone, the system default security level is 1.
- B . The security level can only be set for customized security zones.
- C . In the same system, two security zones are not allowed to configure the same security level.
- D . Security level – once set, no changes are allowed
An engineer used two routers to conduct IPv6 service testing and simulated the interconnection between the headquarters and branches by running BGP4+.
The network logical topology is shown in the figure. Which of the following descriptions about IPv6 route transmission between two devices is wrong?
- A . When routing is passed, the Next_Hop attribute must be an IPv6 global unicast address.
- B . When routing is passed, it will carry recognized mandatory attributes such as AS_Path.
- C . If the Update message carries the MP REACH NLRI attribute, it means that the advertised route is reachable.
- D . BGP4+ transmits routing information between peers through Update messages.
LLDP (Link Layer Discovery Protocol) is the link layer discovery protocol defined in IEEE 802. lab. Because it works at the data link layer, it cannot obtain the neighbor’s management IP address.
- A . True
- B . False
Based on the configuration information as shown in the figure, it can be inferred how many interfaces on R4 are advertised into ISIS?
- A . 2
- B . 0
- C . 1
- D . 3
In an MPLS domain, LSRs can be divided into Ingress LSR, Transit LSR and Egress LSR according to their different data processing methods. For the same FEC, a certain LSR can be the Ingress LSR of the FEC or the Ingress LSR of the FEC. FEC’s Transit LSR.
- A . True
- B . False
Node Segment in SR-MPLS must be configured manually.
- A . True
- B . False
According to the information given in the figure, which of the following descriptions of the IPv6 routing information calculated by the R router through ISIS is correct?
- A . R4 has no IS-IS routing entry
- B . R4 has 2 equal-cost IS-IS default routes
- C . R4 has 2 non-equivalent IS-1S default routes
- D . R4 has 1 1S-IS default route
Both SNMP and NETCONF can be used to manage network devices. Which of the following descriptions of these two protocols is correct?
- A . Both protocols manage different objects through MIBs on network devices.
- B . When you need to manage Huawei switches through SNMP, the SNMP parameters of each switch must be manually configured by default.
- C . When you need to manage Huawei switches through NETCONF, the NETCONF parameters of each switch must be manually configured by default.
- D . Both protocols adopt the Client/Server architecture, with NMS as the server and the managed network device as the client.
An engineer used two routers to conduct IPv6 service testing and simulated the interconnection between the headquarters and branches by running BGP4+.
As shown in the figure, an engineer captures the packet to view the Update message sent by R1.
Which of the following descriptions of the message information is correct?
- A . The next hop address of the route described in this message is, 2001: db8:2345:1::1
- B . The route described in this message may have been introduced through import.
- C . The routing address prefix and its prefix length described in this message are. 2001:db8:2345:1::1/128
- D . This message describes the currently advertised IPv6 route.
In Huawei’s SD-WAN solution, when the CPE is located on the private network behind the NAT device, especially when the CPEs of two sites are located on the private network behind the NAT device at the same time, NAT traversal technology needs to be used between the CPEs.
Which of the following technologies is used in Huawei’s SD-WAN solution to help achieve NAT traversal between CPEs?
- A . NAT ALG
- B . NAT server
- C . IPsec VPN
- D . STUN