H12-821_V1.0 Exam Questions

Regarding the description of the above output information, which one is wrong?

When receiving which of the following messages, the DHCPv6 server will not reply with a Reply message?

Which of the following descriptions of MAC address spoofing attacks is incorrect?

Which of the following descriptions of problems caused by the mutual introduction of BGP and IGP is wrong?

Which of the following origin attribute is used to define the source of path information and mark how a route becomes a BGP route. Which of the following is the correct ranking of...

Which of the following descriptions about OSPF DR/BDR is wrong?

Which of the following is a VPN technology that neither supports user identity authentication nor data encryption and verification?

The network management functional model defined by OSI is divided into multiple functional areas. Which of the following does not belong to this functional area?

By default, how many seconds is the retransmission interval of LSP messages on a point-to-point link?

Which of the following descriptions about OSPF packet authentication is incorrect?

Which of the following is not a feature of OSPF?

Which of the following descriptions of VRRP versions is incorrect?

In a WLAN network, when there is an IPv4 Layer 3 networking between the AC and AP, the user needs to configure the Option43 field. Which of the following functions does it mainly i...

The output information of a certain router is shown in the figure, so which one of the following descriptions is correct? <R2>display ospf interface GigabitEthernet 0/0/0 verbose O...

The route-policy defined by a router is as shown in the figure. [HUAWEI]ip ip-prefix 1 permit 11.1.0.0 16 [HUAWEI]route-policy test-set cost permit node 10 [HUAWEI]route-policy if-...

As shown in the figure, R1 and R2 have configured the local sending time interval, the local receiving time interval and the local BFD detection multiple in BFD. BFD Session R1 TX:...

A certain router runs ISIS, and its interface output information is as shown in the figure. <R1>display isis interface verbose interface information for ISIS(1) Interface Id IPv4.S...

The neighbor information of the router R1 is as shown in the figure. <RTA>display ospf peer OSPF Process 1 with Router ID 1.1.1.1 Neighbors Area 0.0.0.0 interface 10.1.1.1(Ethernet...

As shown in the figure, R1 and R2 are in a backup group. After R2 fails, R1 becomes the Master device. [Image showing R1, R2, SW, PC1, PC2 with IP addresses and VRRP priorities. R1...

The ACL configuration of a router is as shown in the figure. [Huawei] acl adv 3000 [Huawei-acl-adv-3000] rule 3 deny tcp source 192.168.1.0 0.0.0.255 destination 10.167.12.1 0 dest...

Which of the description of this information is wrong?

As shown in the figure, three switches run the MSTP protocol. So how many seconds is the convergence time for the ports connected to SW2 and SW3?

Which of the following tools cannot be used for route filtering?

In the network as shown in the figure, which of the following descriptions about R4 preferred routing is correct?

Which of the following descriptions of router classification in IS-IS is incorrect?

As shown in the figure, STA and STB run the RSTP protocol, and the Cost of Path remains the default. Which of the following descriptions of device and port status is correct?

In the data processing process of network equipment, with the switching network board as the center, the packet's journey through the equipment can be divided into "upstream" and "...

Which of the following descriptions of stack topology connection methods is incorrect?

In the USG series firewall, what is the security priority of the DMZ zone?

Which of the following messages to exchange routing information between peers?

Which of the following protocols can generate a multicast distribution tree?

As shown in the figure, which of the following may be the reason why the adjacency relationship cannot be established?

Which of the following protocols does not support network configuration management?

The output of a certain router is shown in the figure. According to the information analysis in the figure, which one of the following descriptions is correct?

Which of the following descriptions about N+1 backup is correct?

Which of the following descriptions of wildcard masks is correct?

As shown in the figure, the four switches have run the RSTP protocol and completed spanning tree calculations. So which of the following descriptions of port roles are correct?

As shown in the figure, the management VLAN of the LAN is VLAN 10, the AP obtains an IP address through DHCP, and the network segment is 10.1.1.0/24 AP. AC and AR are DHCP client,...

Which routes in the following options meet the following ACL conditions? (Multiple choice) [HUAWEI]acl number 2001 [HUAWEI-acl-basic- 2001] rule 0 permit source 10.1.1.0 0.0.254.25...

The three routers run IS-IS and have established an adjacency relationship. The area numbers and router levels are marked in the figure. If the road between R1 and R2 is interrupte...

A network runs IS-IS. The LSP information of a router R4 in the network is shown in the figure. Which of the following statements is correct? (Multiple choice)

As shown in the picture, there are the following configurations under BGP. [HUAWEI-bgp] timer keepalive 30 hold 90 [HUAWEI-bgp] peer 1.1.1.2 timer keepalive 10 hold 30 Which of the...

It is reported that a VRRP dual-master phenomenon occurs in a local area network, causing traffic to be interrupted from time to time. So what are the possible reasons for this VRR...

In PIM-DM, which working mechanism combination constructs SPT? (Multiple choice)

Regarding the description of the VRRP slave device, which is correct? (Multiple choice)

Which of the following about IGMP Proxy is correct? (Multiple choice)

In a large-scale WLAN three-layer network, which of the following statements about the DHCP server is wrong? (Multiple choice)

Which of the following descriptions about AC roaming groups is wrong? (Multiple choice)

Which of the following LSAs has a propagation range only in a single area? (Multiple choice)

Which of the following description about the prefix list is? (Multiple choice)