H12-821_V1.0 Exam Questions

The flow table is located on the data plane of the router, and each forwarding table entry specifies information such as the outgoing interface and the next-hop IP address to reach...

A Layer 3 interface only needs to be configured with one primary IP address, but in some special cases, a secondary IP address needs to be configured. Which of the following option...

What is the maximum number of network area addresses that can be configured for a single IS-IS process?

By default, which of the following options is the maximum number of area addresses that can be configured in an IS-IS process?

Which of the following BGP attributes does not have to exist in the Update message?

On Huawei equipment, which of the following BGP path attributes only takes effect locally?

In IGRP, how many seconds is the default maximum response time for general visit group queries?

Which of the following of network address translation (NAT) technology do not include which of the following?

Which is generated based on which of the following sets of parameters?

Which of the following descriptions about the Master device in the VRRP protocol is wrong?

In the control module of a frame device, the main control board provides the control plane and management plane of the entire system. Which of the following functions does the mana...

When OSPF runs in the broadcast network, it is necessary to elect DR and BDR. Which of the following states will carry out the election of DR and BDR?

The following is the information output by a router. [HUAWEI]display bgp peer BGP local router id : 2.2.2.2 Local AS number : 100 Total number of peers : 2 Peer V AS MsgRcvd MsgSen...

On Huawei equipment, which of the following commands can realize the linkage between BFD and the static default route?

Which of the description of BGP message types and message characteristics, which is wrong?

The following is part of the output configuration of the Huawei router. [Huawei]ip-prefix IP prefix 5 deny 10.0.0.0 [Huawei]ip-prefix IP prefix 10 permit 192.0.0.0 greater-equal 16...

The Hold time carried by BGP neighbor PeerA in Open is 90s, the Hold time carried by Peer in Open is 30s, and the time for PeerA and PeerB to send Keepalive messages after successf...

OSPF is imported into BGP through the import-route command. Which of the following descriptions is correct?

Two Huawei devices R1 and R2 form a VRRP backup group. R1 is VRRPV2, and R2 is VRRPV3. Which of the following descriptions about the backup group is correct?

Which of the following descriptions about the reset ip ip-prefix command is correct?

As shown in the figure, four Huawei switches have been running and configured with the MSTP protocol. Now SW3 needs to be set as the root bridge of Instance 10. SW1, SW2, SW3, SW4...

Which of the following functions is implemented using NDP 135/136 type messages?

In IS-IS, DIS is used to create and update pseudo nodes, and is responsible for generating link state protocol data unit LStP of pseudo nodes. What is the priority of DIS by defaul...

The output of a certain router ip as-path-filter is shown in the figure. [Huawei]display ip as-path-filter As path filter number: 1 permit ^12345_(0-9)*$ [Huawei] So which of the f...

It is known that Loopback0 exists on router R1 and its address is 1.1.1.1/32. This loopback interface will be introduced when OSPF is enabled and direct routes are introduced. Now,...

Three switches run the RSTP protocol, and the topology and configuration are as shown in the figure. [SWA]stp enable [SWA]stp mode rstp [SWA]stp priority 4096 [SWB]stp enable [SWB]...

Which of the following descriptions about roaming group servers is incorrect?

Which of the following descriptions about configuring the dual-machine hot backup function in the WLAN network is wrong?

Which of the following descriptions about CloudFabric intelligent operation and maintenance is wrong?

The OSPF protocol has authentication capabilities for all data packets exchanged between neighboring routers. In an OSPF system, which of the following algorithms does OSPF support...

Which of the following descriptions of the NSSA area is wrong?

Which of the following descriptions about configuring the set-overload command in IS-IS is correct?

Which of the following descriptions about the Cluster_List attribute in BGP is wrong?

BGP uses TCP as the transport layer protocol, so what is the TCP port number used by BGP?

In BGP, not only the configuration of peers becomes complicated in a fully connected IBGP network, but also the consumption of network resources and device resources will increase....

If a MAD conflict occurs, the MAD conflict handling mechanism will conduct MAD competition. In the principle of MAD competition, within how many seconds is the difference between t...

Which protocol can be used to achieve data integrity?

To ensure the reliability of WLAN networking, two ACs of the same model are currently in the same computer room, and if a failure occurs between the primary and secondary ACs, the...

Which of the following descriptions about LSDB synchronization is wrong?

The device defaults route-advertise command to advertise the default route into the OSPF domain. Which of the following types of LSA does the default route belong to?

Which of the following descriptions of this content is correct?

What is the minimum number of seconds is the BGP peer adjacency relationship maintained?

Which of the following is the MED attribute value in BGP of Huawei equipment?

Which of the following descriptions of routing policy characteristics is incorrect?

Which of the following is not a typical module of data center networking?

Which of the following descriptions of static NAT is incorrect?

What is the aging time of the router port defined in IGMP Snooping?

In a broadcast network, what mechanism does the IS-IS protocol use to ensure the reliability of neighbor relationship establishment?

Which of the following commands is used to enable the IS-IS protocol on the interface?

Which of the following descriptions of link aggregation in LACP mode is correct?