Free HCIP-Datacom H12-821_V1.0-ENU Ultimate Study Guide (Updated 450 Questions) [Q149-Q172]

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Free HCIP-Datacom H12-821_V1.0-ENU Ultimate Study Guide (Updated 450 Questions)

Get to the Top with H12-821_V1.0-ENU Practice Exam Questions

NO.149 Which of the following statements about the BFD detection mode is correct? (Multiple choice)

Asynchronous mode is a commonly used BFD detection mode

In query mode, once a BFD session is established, the system will no longer periodically send BFD control packets

Asynchronous detection mode does not support echo function

In asynchronous mode, the systems will send BFD control packets at the negotiated cycle. If a system does not receive the BFD control packets from the peer within the detection time, it will declare the status of the BFD session Down.

NO.150 OSPF has five message types, please match the message types and functions.

NO.151 When the administrator configures VRRP, which of the following are not mandatory? (Multiple choice)

Preemption mode

Preemption delay

Virtual IP address

Priority of virtual routers

NO.152 As shown in the figure, SWA, SWB, and SWC all run RSTP. What are the port roles of the GEO/O/2 port on SWB and the GEO/D/1 port on SWC?

Backup port, Root port

Alternative port, Backup port

Root port, Designate port

backup port, alternative port

NO.153 When the virtual router responds to the ARP request, it uses the real MAC address of the main router.

True

False

NO.154 One of the features of OSPF is that it only supports MD5 authentication.

True

False

NO.155 The interface IP address and virtual IP address of VRRP can be the same

TRUE

FALSE

NO.156 The BFD control message is encapsulated in a UDP message for transmission, so the destination port number of the multi-hop BFD control message is?

5784

3784

4784

2784

NO.157 What functions can Huawei iMaster NCE products achieve? (Multiple choice)

Can manage equipment across manufacturers

Network automation

Provide a variety of open API interfaces

Predictive maintenance based on big data and Al

NO.158 a router running IS-IS, the following picture shows the router sends Hello message, which of the following statements is correct? (Multiple choice)

The system ID of the router is 0050.0600.7008

The interface address of the router is 10.6.7.5

The area code of the router is 00.0001

This router is a LEVEL-1-2 router

NO.159 Which of the following tools cannot be used for route filtering?

policy-based-route

ip community-filter

IP-Prefix

route-policy

NO.160 As show in the figure, which of the following statements is true?

R1 and R2 can establish adjacency, but cannot complete routing calculations

R1 and R2 can establish adjacency and can complete routing calculations

R1 and 2 cannot establish adjacency, because the network type of the interface is not consistent

R1 and R2 cannot establish adjacency, because OSPF process ID is not consistent

NO.161 By default, VRP automatically aggregates the routes imported by BGP.

True

False

NO.162 The output information of a router is as follows. Which of the following statements is correct? (Multiple choice)
<R1>display ospf interface Gigabitethernet 0/0/0
OSPF Process 1 with Router D 10.1.1.1
Interface: 10.0. 12.1 (Gigabitetherneto/0/0)
Cost: 1 State: DR Type: Broadcast MTU: 1500
Priority: 1
Designated Router: 10.0. 12.1
Backup Designated Router: 10.0.12.2
Timers: Hello 10, Dead 40, Poll 120, Retransmit 5, Transmit Delay 1

This router is DR

The interface address of this router is 10.1.12.1

The Router-ID of this router is 10.1.1.1

The network type of this interface is broadcast

NO.163 The following is a router BGP output information, which of the following regarding the description of this information is false?

It may be caused by an incorrect neighbor address

Error Type shows that it is caused by an error in the neighbor relationship

The error occurred at 12:40:39 on March 22, 2010

The router’s neighbor address is 10.1.1.5

NO.164 About the description of Network Address Port Translation (NAPT) and the Translate only network addresses (No-PAT), which of the following statement is true?

No-PAT supports protocol address translation at the network layer

No-PAT only supports protocol port conversion at the transport layer

After NATP translation, for external users, all messages will only come from the same 1P address

NAPT only supports protocol address translation at the network layer

NO.165 Among the commonly used routing policy tools for BGP, what can be used to match a specific AS_path?

filter-policy

ip-prefix

ip as-path-filer

community-filter

NO.166 All routers in a certain network run IS-S and are in Area 49.0001. The LSDB of R1 is shown in the figure, and the Level of the four routers is judged based on this.

NO.167 In the network as shown in the figure, all switches run the RSTP protocol. If the E1 interface of SWB fails, when the RSTP process, then what will happen? (Multiple choice)

SWB deletes the port entry of the port whose purpose is E1 in the MAC address table

On all non-edge forwarding ports, send topology change notifications (Topology Change Notification) to notify other switches that topology changes have occurred in the network

Recalculate the spanning tree, SWB elects E2 as the root port

Send topology change notifications (Topology Change Notification) on all forwarding ports to notify other switches that topology changes have occurred in the network

NO.168 Which of the following routing prefixes meet the following IP-Prefix conditions? (Multiple choice)
[HUAWEI] ip ip-prefix test index 10 permit 20.0.0.0 16 greater equal 24 less-equal 28

20.0.1.0/24

20.0.1.0/23

20.0.1.0/25

20.0.1.0/28

NO.169 In the RSTP network shown in the figure . According to the configuration of the SWC in the figure, it can be judged that the type of the E0/1 port of the SWC is (). (Multiple choice)

Edge port

Preparation port

Designated port

Root port

NO.170 The role of the switch in the stacking system not include:

Main switch

Candidate switch

Slave switch

Standby switch

NO.171 Which of the following OSPF messages carry master-slave relationship information?

LSA Update message

LSA Request message

D.D message

Hello message

NO.172 Which of the following attacks is not a network layer attack?

ICMP attack

A RP spoofing attack

IP spoofing attack

Smurf attack

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