H12-891_V1.0無料問題集「Huawei HCIE-Datacom V1.0」

質問 1

OSPF is deployed on a campus network to implement network interconnection. The LSDB of R2 is shown in the figure.

What can be determined from the LSDB?

（A）Area 1 is an NSSA.

（B）R2 translates Type 7 default route into Type 5 default route.

（C）R2 advertises the default route in the OSPF process.

（D）Area 1 does not have Type 3 LSAs. The possible cause is that R2 filters Type 3 LSAs in the outbound direction of area 1.

正解：A、B 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 2

An SR-MPLS Policy needs to divert service traffic to a tunnel for forwarding. If traffic from various services is destined for the same address, which of the following traffic diversion modes is recommended to ensure the quality of each service?

（A）Endpoint-based traffic diversion

（B）5-tuple-based traffic diversion

（C）DSCP-based traffic diversion

（D）Color-based traffic diversion

正解：D 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 3

What can be determined from the following figure?
<R1> display ipv6 routing-table protocol isis
Public Routing Table : ISIS
Summary Count: 6
ISIS Routing Table's Status : < Active >
Summary Count: 6
Destination : 3000:FDEA::4
NextHop : FE80::2E0:FCFF:FE98:2577
Cost : 20
Interface : GigabitEthernet0/0/1
PrefixLength : 128
Preference : 15
Protocol : ISIS-L2
Flags : D

（A）R1 has six IS-IS IPv6 routes.

（B）IS-IS IPv6 must have been enabled on GigabitEthernet0/0/1 of R1.

（C）R1 does not have IS-IS IPv6 routes.

（D）R1 is not a Level-1 device.

正解：A、B、D 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 4

In the Huawei SD-WAN Solution, which of the following routing protocols is used to advertise VPN routes between CPEs?

（A）IS-IS

（B）OSPF

（C）RIP

（D）BGP

正解：D 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 5

An SRv6 Policy can be either statically configured on a device or dynamically generated by the controller and then delivered to the device.

（A）FALSE

（B）TRUE

正解：B 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 6

BGP routing policies can be used to control the advertisement and acceptance of routes.

（A）FALSE

（B）TRUE

正解：B 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 7

Refer to the configuration in the figure. Which queue on R2 do packets of PC1 enter by default?

（A）AF3

（B）EF

（C）AF2

（D）AF4

正解：A 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 8

K company has two types of network services: UDP-based real-time video streaming services and TCP-based FTP download services. The company's network administrator often receives complaints that the FTP download speed is slow or unstable. What are the possible causes?

（A）The device limits the FTP traffic rate to a small value.

（B）The device performs PQ scheduling for FTP services and WFQ scheduling for video services. As a result, the FTP service bandwidth is preempted.

（C）The device uses the tail drop technology. As a result, global TCP synchronization affects the FTP rate.

（D）The video service has a higher priority and preempts the bandwidth of the FTP service.

正解：C、D 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 9

Telemetry is a technology that remotely collects data from physical or virtual devices at high speed, and has a layered protocol stack. Which of the following layers isnotincluded in the telemetry protocol stack?

（A）Transport layer

（B）Communication layer

（C）Data analysis layer

（D）Data encoding layer

正解：C 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 10

If ISIS is used to transmit SIDs on an SR network, the node SIDs advertised by a Level-2 router are transmitted only within the same area.

（A）FALSE

（B）TRUE

正解：A 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 11

In thefirewall hot standby scenario, in which of the following conditions will the local deviceproactively send VGMP packets?

（A）Link detection packet timeout

（B）Hot standby being enabled

（C）Priority increase

（D）Hot standby being disabled

正解：B 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 12

An O&M platform mainly provides unified monitoring and performance management for network devices.
Which of the following is NOT device monitoring data?

（A）Monitoring-plane data

（B）Control-plane data

（C）Data-plane data

（D）Management-plane data

正解：A 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 13

What can be determined from the following figure?

（A）R3 must be a Level-1 device.

（B）The device role of R3 cannot be determined.

（C）R3 must be a Level-1-2 device.

（D）R3 must be a Level-2 device.

正解：C 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 14

In a scenario where a VXLAN tunnel is dynamically established through BGP EVPN, which of the following fields is not carried in BGP EVPN Type 2 routes?

（A）L3VNI

（B）L2VNI

（C）IP Address

（D）IP Prefix

正解：D 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 15

Which of the following number sequences can be matched by the regular expression100.$?

（A）1001

（B）10000

（C）1000

（D）100

正解：A、C 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 16

Which of the following functions can be provided by iMaster NCE-Campus when it functions as a relay agent for authentication?

（A）User analysis

（B）User authentication

（C）User accounting

（D）Marketing

正解：A、B、D 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 17

Network Admission Control (NAC) needs to be deployed on the network shown in the figure. Drag a proper authentication mode to each authentication point.

正解：

Explanation:
Correct Matching of Authentication Methods:
1#802.1X authentication#PC (GE0/0/2 on SW3)
2#MAC address authentication#IP Phone (GE0/0/3 on SW3)
3##Portal authentication#Wireless Clients (Connected via SW2/AP)
Understanding Network Admission Control (NAC) Authentication Methods
#Network Admission Control (NAC)enforcessecurity policies before allowing devices onto the network.
#Different types of devices requiredifferent authentication methodsbased oncapabilities and security requirements.
Analysis of Each Authentication Type:
#1##802.1X Authentication (Used for PC on GE0/0/2 of SW3)
Best for devices that support user authentication (e.g., PCs, Laptops).
Requiressupplicant software (e.g., Windows or macOS built-in 802.1X client).
Providesstrong security using EAP (Extensible Authentication Protocol) over RADIUS.
#2##MAC Address Authentication (Used for IP Phone on GE0/0/3 of SW3)
Best for devices that do not support username/password authentication (e.g., IP Phones, IoT devices).
UsesMAC addresses as identity credentials.
Suitable forVoIP networks, industrial IoT, and surveillance cameras.
#3##Portal Authentication (Used for Wireless Clients on SW2/AP)
Best for guests or mobile users accessing Wi-Fi networks.
Redirects users to aweb-based login pagebefore granting access.
Used inpublic hotspots, campus Wi-Fi, and enterprise guest networks.
Why These Assignments Are Correct?
1##802.1X for PC:
PCs support 802.1X authentication via supplicants (EAP-MD5, PEAP, etc.).
Ensureshigh security by verifying user credentials.
2##MAC Address Authentication for IP Phone:
IP Phones lack a username/password interface, so authentication is done via MAC addresses.
Simplifies authentication while maintaining security.
3##Portal Authentication for Wireless Clients:
Wireless users do not use 802.1X authentication directly; instead, they are redirected to a web login page.
Common in enterprise guest Wi-Fi and public hotspots.
Real-World Application:
Enterprise NAC Deployment:Ensuresonly authorized users and devices access the corporate network.
Campus & Hotel Wi-Fi Security:UsesPortal Authentication for guests, 802.1X for employees, and MAC- based for VoIP.
#Reference:Huawei HCIE-Datacom Guide - NAC Authentication Methods & Best Practices

質問 18

BFD can implement millisecond-level link status detection.

（A）FALSE

（B）TRUE

正解：B 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 19

InHuawei Open Programmability System (OPS), /ifm/interfaces/interface is theURLused toidentify a device's managed object.

（A）FALSE

（B）TRUE

正解：B 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

質問 20

Which of the following number sequences can be matched by the regular expression 100.s?

（A）1001

（B）10000

（C）1000

（D）100

正解：C 解答を投票する

解説: (JPNTest メンバーにのみ表示されます)

H12-891_V1.0 無料問題集「Huawei HCIE-Datacom V1.0」

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