H12-821_V1.0 Exam Questions

MP-BGP extension to BGP-4 allows different types of address clusters to be distributed simultaneously in BGP. Which of the following address clusters are supported by MP-BGP? (Mult...

Through the import-route command, which of the following types of protocols can BGP inject into the BGP routing table? (Multiple choice)

Which of the following descriptions about IP address owners in VRRP are correct? (Multiple choice)

A router outputs information as shown in the figure. <R2>display ospf interface GigabitEthernet 0/0/0 verbose OSPF Process 1 with Router ID 10.0.2.2 Interface: 10.0.12.2 (GigabitEt...

As shown in the figure, according to the analysis in the figure, which of the following routes cannot be introduced into OSPF 1? (Multiple choice) [R_Edge]ip ip-prefix aa index 10...

The following is a device using the display bgp routing-table 10.0.0.0 16 command to view BGP routing information: BGP local router ID : 10.0.4.4 Local AS number : 400 Paths: 1 ava...

As shown in the figure, which of the following routes can be matched by this prefix list? (Multiple choice) [HUAWEI]ip ip-prefix test index 10 permit 20.0.0.0 16 greater-equal 24 l...

If shown, the four switches have run the RSTP protocol and completed spanning tree calculations. So which of the following descriptions of port roles are correct? (Multiple choice)

Which of the following descriptions of multicast routing are correct? (Multiple choice)

Which of the following descriptions about router forwarding data are correct? (Multiple choice)

Which of the following protocols support network monitoring and management? (Multiple choice)

OSPF is a link state protocol. Link state information includes which of the following items? (Multiple choice)

Which of the following parameters are not required when configuring BGP Peer? (Multiple choice)

Which of the following descriptions of BGP features are correct? (Multiple choice)

Which of the main types of IS-IS Hello messages? (Multiple choice)

The development of technology and applications has promoted the arrival of the Wi-Fi6 era. Which of the following descriptions of the high performance of Wi-Fi6 are correct? (Multi...

Which of the following mechanisms or techniques can VRRP be combined with to monitor uplink connectivity? (Multiple choice)

VLAN Pool has two algorithms for allocating VLANs, namely sequential allocation and HASH allocation. Which of the following descriptions of the two algorithms are correct? (Multipl...

Which of the following descriptions of RP in PIM-SM are correct? (Multiple choice)

Which of the following message types does BGP include? (Multiple choice)

Based on the provided network diagram (BID: 32768.0c-00-00-0a-01-01, 32768.0c-00-00-0a-01-02, 32768.0c-00-00-0a-00-03, 32768.0c-00-00-0a-00-04), which of the following statements i...

As shown in the figure, the stateful inspection firewall will forward the second TCP three-way handshake message in the figure.

As shown in the figure, four routers in the same LAN run IS-IS, among which R1 is DIS. Then R2, R3, and R4 establish adjacency relationships with R1 respectively, but no adjacency...

In the network shown in the figure, the R1 device is configured with route penetration. Then the R1 device sends the LSP of Level 1-2 to R3 so that R3 can learn the entire network...

LAN mapping table is an attribute of the IST domain and is used to describe the mapping relationship between VLAN and MSTI. Each VLAN can correspond to multiple MSTIs, and one MSTI...

Through the linkage between BFD and MPLS LSP, BFD can be dynamically created to detect the connectivity of static or dynamic LSP.

BGP routing policy can control the publishing and receiving of routes.

The design of IS-IS messages using the TLV structure is that it has better scalability. To add new features, you only need to add a new TLV, and there is no need to change the over...

As shown in the figure, all routers run OSPF. Because R3 is in the backbone area, there is no type three LSA in the LSDB of R3.

In the NetStream stream output mode, the advantage of the original stream output is that NSC can obtain detailed statistical information for each stream.

In OSPF, if the network type is NBMA or broadcast and there are two or more routers, DR and BDR must be specified.

A firewall that uses the packet outgoing interface as the local interface for TCP connections.

In BGP route selection rules, when other conditions are the same, the route with the larger MED value will be given priority as the best route.

In the multicast service model, in order to improve security, ASM can configure filtering policies for group sources on the router to allow or prohibit packets from specific multic...

There are hosts running various IGP versions in the current network. The corresponding S multicast group address ranges of hosts of different versions are different, but its functi...

Establishing multiple nodes under a Route-Policy. Different node numbers are identified by node numbers. The relationship between different nodes is an "OR" relationship.

In VRRP, when the virtual router responds to an ARP request, the main router direct interface MAC address is used.

In the liberal distribution mode, if the Liberal retention mode is used, the device will retain the labels sent by all LDP Peers, regardless of whether the LDP Peer is the next hop...

OSPF does not flood Type 5 LSA and Type 4 LSA into the Stub area. It advertises a default LSA to the Stub area and guides the data packet on how to reach the destination outside th...

On the OSP platform, when we introduce OSPF routing to ISIS, if COST is not specified, the cost value will be set to 16 by default.

The monitoring port can realize the function of transmitting the packets of specific business flows on the mirrored port to the monitoring device for analysis and monitoring.

DCN (data center network) that provides interconnection within the data center and interconnection between the internal and external egresses of the data center. A DCN usually cons...

MSTP uses the 802.1D standard and is backward compatible with STP and RSTP. By establishing multiple loop-free trees, it solves broadcast storms and enhances redundant backup.

In a large-scale WLAN network, when the VLAN Pool uses HASH to allocate VLANs, the number of users in each VLAN will be evenly divided.

Mechanisms such as sending active and standby service messages and retransmission can be used to prevent the HSB backup channel between the active and standby boards from being int...

Round Robin scheduling method is to poll and send according to the number of bytes defined by each queue, and the bandwidth ratio of each queue is equal to the ratio of the number...

OSPFNSSA and Totally Stub area solve the problem caused by maintaining an excessively large LSDB in the end area, but for some specific scenarios, they are not the best solution.

In a broadcast or NBMA network, not all neighbors will establish adjacency relationships.

The role of the business collaboration layer in the SDN architecture is to complete business deployment based on user intentions. OpenStack belongs to the business collaboration la...

By using link aggregation and stacking technology in a campus network, network reliability can be improved.