H12-831_V1.0 Exam Questions

In the IS-IS network shown in the figure, R1 introduces the default route through the "default- route-advertise always level-1" command. Which of the following descriptions are cor...

In the IS-IS network shown in the figure, R1 introduces the default route through the "default- route-advertise always level-1" command. Which of the following descriptions is wron...

In the OSPF network shown in the figure, the area numbers are marked in the figure, where area 1 is the Stub area, area 2 is the Totally Stub area, and area 3 is the NSSA area. By...

In the OSPF network shown in the figure, the link cost value has been marked in the figure. R1 enables OSPF IP FRR. The main path for R1 to reach 10.0.3.3/32 is R1-R2-R3, and the b...

In the OSPF network shown in the figure, the cost value of the link is marked in the figure. R1 has enabled OSPP IP FR and configured the "maximum load-balancing 8" command in the...

The OSPF protocol requires routers in the same area to save the same link state database LSDB. As the number of routes on the network continues to increase, some routers cannot car...

In order to protect the BGP protocol from attacks, Keychain authentication can be used between BGP neighbors to reduce the possibility of attacks. The keychain has a set of passwor...

In the network shown in the figure, adjacent routers use directly connected interfaces to establish EBGP neighbor relationships. The Router ID of each device is 10.0.XX, and the AS...

In the network shown in the figure, adjacent routers use directly connected interfaces to establish EBGP neighbor relationships. The AS number is 6500X, where X is the router numbe...

Use "display ospfv3 peer verbose" to view OSPFv3 neighbor information. In the output information, you can see the peer's Router ID, the global unicast address of the peer's interfa...

In the OSPFv3 network shown in the figure, the interconnected ports of R1, R2, and R3 have OSPFv3 enabled, and the Router ID of each device is 10.0.XX, where X is the device number...

In the OSPFv3 network shown in the figure, the IPv6 address of R3 Loopback0 interface is 2000::3/128, and OSPFv3 is enabled. Which of the following descriptions are correct? (Multi...

The LSP information generated by a certain IS-IS router is shown in the figure. From the LSP information, it can be inferred that the router is not the DIS of this link.

In the OSPFv3 network shown in the figure, area 1 is an NSSA area. R1 imports the external route 2000::1/128 into OSPFv3. What types of LSAs are in area 0 by default? (Multiple cho...

In the OSPFv3 network shown in the figure, area 1 is a stub area, area 2 is a common area, and area 3 is an NSSA area. The IPv6 address of the R6Loopback0 interface is 2000::6/128....

When creating an IPv6 static route, for a point-to-point interface, the outbound interface must be specified. For a broadcast type interface, the next hop must be specified.

In the OSPFv3 network shown in the figure, the interconnected ports of R1, R2, and R3 have OSPFv3 enabled, and the Router ID of each device is 10.0.XX, where x is the device number...

The Link-LSA generated by an OSPFv3 router is shown in the figure. Which of the following is the number of global unicast addresses configured on the interface?

To support the processing and calculation of IPv6 routes, IS-IS adds a new MLPID in TLV No. 129. MLPID is an 8-bit field that identifies a network layer protocol message. Which of...

In the OSPFv3 network shown in the figure, area 1 is the Totally Stub area, area 2 is the normal area, and area 3 is the Totally NSSA area. The IPv6 address of the R6 Lopback0 inte...

The Router ID of R4 is 10.0.4.4. In the LSDB of R4, the LSA shown in the figure is seen. The network engineer makes the following inferences based on the LSA. Which one is wrong?

There are many types of MAC address entries on the switch. Which of the following types are manually configured by the user and cannot be aged? (Multiple choice)

As shown in the figure, the network administrator deploys the DHCP Snooping function on the switch to defend against attacks by DHCP Server impersonators. Which of the following in...

The network administrator has deployed the DHCP snooping function on the access switch. Which of the following solutions can be used to reduce the impact of attackers maliciously a...

When the switch is configured with port isolation function, by default, different hosts belonging to the same VLAN cannot communicate at layer 1 and layer 3.

On the same switch interface, the administrator can only configure traffic suppression for one of the following: broadcast, unknown multicast, unknown unicast, known multicast, and...

As shown in the figure, VLAN aggregation is deployed in a switching network, where Sub-VLAN 10 and Sub-VLAN 20 are added to Super-VLAN 100. If PC1 and PC2, PC1 and PC3 are to be ab...

The MPLS label is a 20-bit local identifier. When the administrator configures a static LSP, the incoming label and outgoing label can be manually specified. The value range is 0~1...

The exchange of Hello messages between two LSRs (Label switching Routers) triggers the establishment of an LDP session. The Hello message carries the transport address. The device...

MPLS determines the upstream and downstream relationship based on the data forwarding direction. The MPLS label message is sent from the upstream LSR and received and processed by...

MPLS needs to assign labels to messages in advance and establish an LSP before it can forward messages. LSP is divided into static LSP and dynamic LSP. Which of the following proto...

As shown in the figure, an enterprise hopes to achieve secure mutual visits between the headquarters and branches, as well as business isolation between the R&D area and the non- R...

In a BGP/IPLS IP VPN network, the output information of a PE device VPN1 is shown in the figure. When the VPIv4 route corresponding to VPN1 is advertised to the remote PE, which VP...

In a certain MPLS network, the LSP information of R1 and R3 is shown in the figure. At this time, the administrator enters the command ping -a 1.1.1.1 3.3.3.3 on R1. Which of the f...

In a BGP/MPLS IP VPN network, VPNv4 routing transfers carry Export RT values. Which of the following path attributes does MP-BGP use to carry Export RT?

As shown in the figure, RIR4 is one of the four routers in AS 123. They all run OSPE and realize the routing interconnection within the AS. Among them, the two network segments 10....

In the Hub&Spoke network shown in the figure, Hub-PE can allow local AS number duplication through manual configuration to achieve correct routing transmission.

The equipment operating environment refers to the external environment such as the equipment room, power supply, and heat dissipation where the equipment operates. This is the basi...

Network maintenance can be divided into two categories: daily maintenance and troubleshooting. If the maintenance personnel have a high level of technical skills, they can maintain...

A network device has established an OSPF neighbor relationship. The configuration of its GE0/0/0 interface is shown in the figure. Which of the following commands executed on this...

A network engineer accidentally deleted the IP address of an interface through the command line. If he wants to view the deleted IP address, which of the following information shou...

Which of the following operations does a network engineer not need to perform when processing a single-hop BFD session Dom?

A network engineer captured a multicast data frame whose destination MAC address is 01-00-5e- 00-01-01. Based on this analysis, which of the following cannot be the destination IPv...

When the device logs in to other devices as an SSH client and fails to log in using public key authentication, which of the following are possible reasons? (Multiple choice)

The detection mechanism of BFD is that two systems establish a BFD session and periodically send BFD control messages along the path between them. If one party does not receive the...

In the network shown in the figure, R1 and R2 are configured with single-hop BFD detection. The network engineer found that the BFD session was Down, so he queried the configuratio...

If a network engineer forgets the console port password when troubleshooting, Huawei Net Engine AR series routers support configuration in the Boot ROM to skip the console port pas...

The networks of large and medium-sized enterprises can be divided into access layer, aggregation layer and core layer. Network engineers need to formulate cutover plans for any ope...

A network engineer wants to clear the serial port login password. Which of the following should he enter?

When executing a cutover project, network engineers can perform remote operations at the customer's network maintenance center and guide on-site construction personnel to complete...