2023 Correct and Up-to-date Huawei H12-821_V1.0-ENU BrainDumps [Q107-Q127]

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2023 Correct and Up-to-date Huawei H12-821_V1.0-ENU BrainDumps

Current H12-821_V1.0-ENU dumps Preparation through Our Practice Test

NO.107 Which of the following descriptions of MED is correct? (Multiple choice)

The default value of MED is 0

The default value of MED is 100

MED can only be delivered within this AS

MED is an optional non-transitional attribute

NO.108 By default, VRP automatically aggregates the routes imported by BGP.

True

False

NO.109 Which of the following description of the prefix list is wrong?

The prefix list can match the prefix number and prefix length

The prefix list can be used for packet filtering

The prefix list can be used to filter IP prefixes

The prefix list has a stronger matching function for the routing mask than the access control list

NO.110 In the case of without enabling BGP path load sharing, which BGP routes will be sent to BGP neighbors?

All BGP routes learned from all neighbors

Only the best route preferred by BGP

Only routes learned from IBGP

Only routes learned from EBGP

NO.111 Which of the following parameters are not necessary when configuring BGP Peer? (Multiple choice)

Password

description

as number

peer IP Address

NO.112 The routing tool route-policy can filter and set BGP attributes based on pre-defined conditions, so it is often used to define policies for BGP peers, and it is often used during route generation. All the configured routes are denied to pass the route-policy.

TRUE

FALSE

NO.113 On-board AC refers to the built-in AC capability of Huawei agile switches, which realizes the integrated management of wired and wireless services, and the unified management of wired and wireless business traffic is centralized by the agile switch

TRUE

FALSE

NO.114 The router receives two BGP routes with the following attributes, please select the best route according to the BGP routing rules:

The best route is route M, due to its AS_Path is shorter than route N

The best route to route N, due to its MED is smaller than route M

The best route to route N, due to its AS_Path is longer than route N

The best route to route M, due to its MED is larger than route N

NO.115 Regarding the description of the VRRP slave device, which of the following is correct? (Multiple choice)

When receiving a VRRP message with priority 0, Slave will directly switch to Master

The slave responds to the IP packet whose destination IP address is the virtual IP address

When the slave receives the VRRP message sent by the Master, it can judge whether the status of the Master is normal

The slave will discard IP packets whose destination MMC address is the virtual MAC address

NO.116 Regarding the ABR in OSPF, which of the following description is wrong?

ABR cannot generate Type 3, Type 4, or Type 5 LSA

Convert the Type 1 and Type 2 LSAs in the connected non-skeletal area into Type 3 LSAs and publish them to the backbone area

The Type 1, Type 2, and Type 3 LSA in the backbone area of the ABR are converted to Type 3 LSA and published to the connected non-skeletal area

There are multiple LSDBs on the ABR, and the ABR maintains one LSDB for each area

NO.117 The session-based state detection firewall has different processing procedures for the first packet and subsequent packets. Which of the following descriptions is correct? (Multiple choice)

When the status check mechanism is turned on, subsequent packages also need to be checked for security policies

When a packet arrives at the firewall, it will look up the session table. If there is no match, the firewall will perform the first packet processing flow

When the stateful inspection mechanism is turned on, when the firewall processes TCP packets, only SYN packets can establish a session

When a packet arrives at the firewall, it will look up the session table. If it matches, the firewall will perform subsequent packet processing procedures

NO.118 The command format of the prefix list (IP-Prefx) is ip ip-prefx ip-prefix-name [index index-mnumber] permit/deny] ipv4-address mask-length [greater-equal greater-equal-value] [less -equal less-equalvalue], if only greater-equal is specified but less-equal is not specified, the prefix range is:

[0. greater-equal-value]

Unlimited

[mask-length, greater-equal-value]

[greater-equal-value.32]

NO.119 Which of the following statement about OSPF protocol packets is incorrect?

The header format of all OSPF packets is the same

All OSPF packet headers carry the Router-ID field

The OSPF protocol uses five types of messages to complete the transmission of routing information

OSPF packets are encapsulated in UDP packets, and the port number is 89

NO.120 The following description about BGP, OSPF, ISIS, which the description is true?

BGP neighbor relationship is established based on TCP session, and the port number used is 179

ISIS runs based on IP protocol, the protocol number adopted is 89

BGP runs based on UDP sessions, and the port number used is 179

OSPF runs based on IP protocol, the protocol number adopted is 90

NO.121 A network engineer outputs the following information when troubleshooting the OSPF protocol. Based on this to determine which cause the adjacency relationship cannot be established normally?

The area code does not match

Process numbers are discordance

The IP address code of the interface is discordance

Router ID conflict

NO.122 When two routers exchange database information through DD messages, a master-slave relationship is first formed, and the one with the larger router id must be the master.

TRUE

FALSE

NO.123 Which of the following statements about stack splitting is wrong?

If the main and standby switches are in two stacking systems after the stack is split, the stack system where the original main switch is located will update the topology and re-designate the standby switch. The original standby switch will be promoted to the master in the new stacking system, and the new standby switch will be elected at the same time

After the stack splits, the MAC addresses of the two stacking systems will definitely change immediately

After the split, multiple stack systems will have the same IP address and MAC address. To avoid network failures, the stack will perform MAD detection. The party that fails the MAD detection competition will close all physical ports except for reserved ports.

If the master and backup switches are still in the same stack system after the stack is split, the slave switches separated from the original master and backup switches will re-elect the master and backup transfer machines due to the timeout of the protocol packets.

NO.124 iMaster NCE-Campus supports the management of Huawei network equipment through NETCONF and the management of third-party equipment through SNMP

TRUE

FALSE

NO.125 During the operation of the DHCP protocol, the process from the client application to obtaining an IP address is ().

3 – 2 – 1 – 4

1 – 2 – 3 – 4

1 – 4 – 3 – 4

3 – 4 – 1 – 2

NO.126 In the N+1 backup network of WLAN, which of the following statements about option43 is correct? (Multiple choice)

The command to configure the option43 parameter field of the DHCP server to the IP addresses of the primary and standby ACs is option43 sub-0ption 2 ip-address ip-address &<1-8>

If the AC of the IP address advertised by option 43 does not respond to the AP, the AP will find that the AC will immediately fail

After the option 43 field is configured, the AP will only send unicast Discovery Request messages to the AC IP address advertised by option 43

To configure the option 43 field, the AP needs to be notified of the IP addresses of the primary AC and backup AC to which it belongs, and also the IP addresses of other primary ACs.

NO.127 As shown in the figure, in the network running the RSTP protocol, the original root port of SWC fails and the port is in Down state. At this time, which of the following processes will the network go through to achieve stability?