H12-831_V1.0 Exam Questions

The network logic architecture of a cutover project is shown in the figure. The purpose of the cutover is to expand a network device R4 between R2 and R3. The router IDs of R1, R2,...

In the OSPF network shown in the figure, R1 and R2 achieve intercommunication through Loopback0 interface through OSPF. At the same time, R1 and R2 have enabled the MPLS LDP functi...

In the networking shown in the figure, R1 and R2 cannot establish an EBGP neighbor relationship through the directly connected interface. The network engineer first checked the BGP...

A network engineer discovered that a link failure alarm frequently appeared on the interface of a certain device. The interface is an Ethernet optical port. Which of the following...

A network engineer uses the capture-packet tool to capture the message received by the interface. The figure shows some output information. What protocol does this message belong t...

In the enterprise network shown in the figure, R3 is connected to the enterprise network management server, and all devices in the network communicate with the network management s...

The concepts of RD and RT are introduced in BGP/MPLS IP VPN network. Which of the following descriptions about RD and RT are correct? (Multiple choice)

As shown in the figure, R1, R2, and R3 run WPLS, and the administrator configures a static LSP from the 1.1.1.0/24 network segment to the 3.3.3.0/24 network segment. Which of the f...

MP-BGP adds a new path attribute MP_REACH_NLRI to publish VPNv4 routing information or withdraw unreachable routes in BGP/MPLS IP VPN networks

In the BGP/MPLS IP VPN network shown in the figure, which of the following RT value plans can enable Site 1 and Site 2 to communicate with Site 3? (Multiple choice)

As shown in the figure, in order to realize the correct transmission of VPN routes in the Hub&Spoke network, the administrator deployed IGP between Hub-PE and Hub-CE, and deployed...

In the CE multi-homing scenario, if the PE enables the BGP AS number replacement function, you can also configure the Soo feature to avoid loops, that is, enable this feature throu...

In the network shown in the figure, the administrator first completes the routing configuration as shown in the options, and then enables MPLS and LDP functions on all devices and...

In the BGP/MPLS IP VPN network shown in the figure, the administrator uses Hub- spoke networking to implement centralized control of VPN traffic at the Hub site. Which of the follo...

In the BGP/MPLS IP VPN network, PE and P devices exchange public network labels by running MP-BGP, so that P devices can forward data based on labels.

An enterprise network deploys the MUX VLAN function to control the Layer 2 communication between employees and guests. Which of the following descriptions are correct about the sce...

A DHCP Snooping-enabled device will generate a DHCP Snooping binding table based on the DHCP request message information sent by the DHCP client, thereby implementing matching chec...

When configuring VLAN aggregation, before adding a Sub-VLAN to a Super-VLAN, you must delete the VLANIF interface corresponding to the Sub-VLAN.

As shown in the figure, S73 is the user gateway and DHCP Relay in the network. The administrator plans to deploy the DHCP Snooping function on S73 to prevent DHCP attacks. Which of...

When the administrator deploys the traffic suppression function on the switch, in the VLAN view of the device, which of the following types of messages can be suppressed based on t...

In order to support multi-topology functions, which of the following TLVs has been newly added by IS-IS?

The AS-External-LSA generated by a router is shown in the figure. Based on this LSA, which of the following descriptions are correct? (Multiple choice)

OSPPv3 is running between R1 and R2, and the IPv6 addresses configured on the interfaces are marked in the figure. The Router ID of R1 is 10.0.1.1, and the Router ID of R2 is 10.0....

In the IS-IS IPV6 network shown in the figure, all routers have multi-topology enabled. Configure "ipv6 default-route-advertise always level-1" in the IS-IS processes of R4 and R5....

The Router-LSA generated by a router is shown in the figure. Based on this LSA, which of the following descriptions are correct? (Multiple choice)

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 R5 Lopback0 interface is 2000::5/128,...

When creating an IPv6 static route, for a broadcast type interface, you need to specify the next hop, and the next hop address can be a link-local address. When the next hop addres...

In the network shown in the figure, IS-IS IPv6 runs between R2, R6, and R3, and the IPv6 address of R6 Looback0 interface is 2000::6/128. Other links all run OSPFv3. Area 1 is a st...

To prevent attackers from forging BGP messages to attack devices, you can protect devices by configuring the GTS function to detect the range of TTL values in the IP message header...

In the network shown in the figure, R1, R2, R4, and R5 run IS-IS in area 49.0001. R3 and R6 run IS-IS in area 49.0002. Configure "import-route isis level-2 into level-1" on R2 and...

Use the "display version | begin uptime" command on the router, and the first word in the output information is "uptime"

In order to protect the BGP protocol from attacks, MDS authentication can be used between BGP neighbors to reduce the possibility of attacks. The ID5 algorithm is simple to configu...

In the OSPF network shown in the figure, the area numbers are marked in the figure, where area 1 is a common area, area 2 is a stub area, and area 3 is an NSSA area. If R5 introduc...

In the IS-IS network shown in the figure, the link cost value has been marked in the figure. R1 turns on IS-IS Auto FRR, then the main path for R1 to reach 10.0.3.3/32 is R1- R2-R3...

In a networking environment where the network is relatively stable and has high requirements for routing convergence time, you can specify the OSPF LSA reception time interval to 0...

As shown in the OSPF network, the area numbers are marked in the figure, where area 1 is a common area, area 2 is a Totally NSSA area, and area 3 is an NSSA area. R5 introduces the...

As shown in the OSPF network, the area number has been marked in the figure, where Area 1, Area 2, and Area 3 are all common areas. The IP address of the R5 Loopback0 interface is...

In the OSPP network shown in the figure, area 1 is a Totally NSSA area, area 2 is a common area, and R4 imports the external route 10.0.4.4/32. The Router ID of each device is 10.0...

By default, the time interval for sending OSPF Hello messages on P2P and Broadcast type interfaces is 10 seconds, and the neighbor expiration time is 40 seconds.

In the OSPF network shown in the figure, Area 1 and Area 2 are both common areas, and R4 introduces the external route 10.0.4.4/32. The "asbr-summary 10.0.4.0 255.255.255.0" comman...

In the IS-IS network shown in the figure, R1 introduces the default route through the "default- route-advertise always level-1" command, and R2 introduces the default route through...

In the OSPF network shown in the figure, R1 and R2 are connected by four links. OSPF is enabled on the Loopback0 interface of R2. The "maximum load-balancing 3" command is configur...

OSPF neighbors periodically send Hello messages to establish and maintain adjacency, and the interval of the Hello timer must be consistent, otherwise the adjacency cannot be estab...

When there are multiple redundant links in the IS-IS network, multiple equal-cost routes may appear. For a certain route among the equal-cost routes, the network administrator can...

Type 7 LSA is a new LSA type added to support NSSA areas, used to describe the external routing information introduced. It is generated by the Autonomous Region Border Router (ASBR...

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 corr...

In the OSPF network shown in the figure, the area numbers are marked in the figure, where area 1 is an NSSA area, and areas 2 and 3 are common areas. The "default-route- advertise...

By default, the cost type of IS-IS routes is narrow mode. In this mode, which of the following is the maximum value of the route cost?

The route reflector and its clients form a cluster, using the unique Cluster ID in the AS as an identifier. When a route is reflected by the RR for the first time, if there is no C...