View All H12-891_V1.0 Actual Exam Questions, Answers and Explanations for Free [Q96-Q116]

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View All H12-891_V1.0 Actual Exam Questions, Answers and Explanations for Free

H12-891_V1.0 Exam Free Practice Test with100% Accurate Answers

Huawei H12-891_V1.0 Exam Syllabus Topics:

Section	Weight	Objectives
Campus Network Planning and Deployment	23%	– Network Services 1. Network Security 2. QoS 3. WLAN – Overlay Network (VXLAN) 1. VXLAN Gateway 2. BGP EVPN – Underlay Network 1. IP Address Planning 2. Physical Layer Design – Campus Network Architecture 1. Hierarchical Design 2. Spine-Leaf Architecture
WAN Interconnection Network Planning and Deployment	8%	– MPLS VPN 1. Full-Mesh 2. Hub-Spoke – SD-WAN 1. Architecture 2. Orchestrator – Inter-AS VPN 1. Option B 2. Option C 3. Option A
Advanced Routing and Switching Technology	37%	– Route Control 1. IP Prefix List 2. Route-policy 3. ACL 4. Route Filtering – MPLS 1. MPLS VPN 2. Basic Concepts 3. LDP 4. MPLS TE 5. Configurations – IS-IS 1. Basic Concepts 2. Route Leaking 3. Addressing 4. Configurations and Troubleshooting 5. Network Types – BGP 1. Basic Concepts 2. Route Aggregation 3. Path Selection 4. Configurations and Troubleshooting 5. Routing Policies – OSPF 1. Basic Concepts 2. Route Calculation 3. LSA Types 4. Configurations and Troubleshooting 5. Area Types – Ethernet Switching 1. VXLAN 2. Stack & CSS 3. VLAN 4. STP/RSTP/MSTP
Network Automation	17%	– Automation Technologies 1. RESTful API 2. NETCONF/YANG 3. Ansible 4. Python Scripting – iMaster NCE 1. Intent-Driven Networking – NCE (Network Cloud Engine) 1. Deployment 2. Architecture
Bearer WAN Planning and Deployment	15%	– Traffic Engineering 1. Flex-Algo 2. SR-TE 3. RSVP-TE – SR (Segment Routing) 1. SR-MPLS 2. SRv6 – VPN Services 1. EVPN 2. L3VPN

Q96. ISIS does not send CSNP packets under the P2P network type during the neighbor establishment process.

True

False

Q97. After a wireless user passes Portal authentication, which of the following parameters cannot be used for authorizing the user?

free-rule

UCL

IP address

ACL

Q98. Which of the following statements aboutOPS (Open Programmability System) application scenariosisincorrect?

To enable a network device to automatically send a configuration file to the server after the device configuration is saved, users can use the maintenance assistant to create a timer trigger condition and periodically run the Python script.

When the OPS is used to automatically deploy unconfigured devices, a Python script is used to obtain the IP addresses of the software and configuration file server and download the system software and configuration file.

The OPS can reduce the impact of the network environment in some cases. For example, when collected information is transmitted to a server, the Python script can be used to temporarily store the execution result to the device when the network is disconnected. After the network is reconnected, the execution result is transmitted to the server.

The OPS can be used to automatically check the health status of devices.

Q99. YANG is a data modeling language for the definition of data sent over network management protocols such as NETCONF. Which of the following are basic YANG data models? (Select all that Apply)

Set node

Leaf node

List node

Tree node

Q100. A network administrator runs the display telemetry subscription command on a device to check telemetry subscription information. The command output is as follows. Which of the following statements is incorrect?
[~CE] display telemetry subscription
Sub name : Sub1
Sensor group:
Sensor-name Sample-interval(ms) State
Sensor1 1000 RESOLVED
Destination group:
Dest-name Dest-IP Dest-port State Vpn-name Protocol
Dest1 192.168.56.1 20030 RESOLVED – GRPC
Sub state : PASSIVE
Total subscription number is : 1

The device sends sampled data every second.

The subscription mode is static subscription.

The IP address of the device is 192.168.56.1.

The subscription name is Sub1.

Q101. Regarding the Stub region in the OSPF protocol, the following statement is correct.

Virtual connections cannot traverse the Stub region

Backbone zones cannot be configured as Stub zones

ASBR cannot exist in the Stub zone

Type7 LSA injection is not allowed in the Stub zone

Q102. When an SSH client logs in to an SSH server that is configured only with username and password authentication in SSH mode, the key exchange phase is not involved (no key is generated).

TRUE

FALSE

Q103. In the figure,SR-MPLSis enabled onR1, R2, and R3. TheSRGB (Segment Routing Global Block) rangeonR3is from20000 to 21000, and theprefix SID indexconfigured on theloopback1 interface of R3 is 30.
In this case, theMPLS label corresponding to the loopback1 interface of R3 is _____.
(Enter anArabic numeralwithout symbols.)

Q105. Users hope to be able to make the router forward and select messages according to their own defined policies on the basis of traditional route forwarding, and can adopt policy routing, and the following description of policy routing is incorrect

Policy Routing can set the next hop IP address

Policy Routing cannot be set in the next statement DSCP

Policy Routing cannot be used to set IP precedence

Policy-based routing can be used to match message lengths

Q106. The BGP ORF function can be used to control the maximum number of routes that can be sent by a BGP peer. To achieve this, which of the following tools is used to send such a route list to BGP peers?

Filter-policy

Route-policy

ACL

IP prefix-list

Q107. In a scenario where a VXLAN tunnel is dynamically established through BGP EVPN, which of the following statements about symmetric IRB forwarding are correct?

Both the ingress VTEP and egress VTEP forward packets based on the Layer 3 forwarding table.

The ingress VTEP forwards packets based only on the Layer 2 forwarding table.

The egress VTEP forwards packets based only on the Layer 2 forwarding table.

When VTEPs forward inter-subnet user communication packets, the VNI carried in the VXLAN header is the L3VNI.

Q108. Which of the following are potential risks in HTTP communication?

Eavesdropping: Third parties can obtain communication data.

Pretending: Third parties can impersonate another user.

Tampering: Third parties can tamper with communication data.

Lost: There is a low probability that data is lost during transmission.

Q109. Which of the following statements about DHCP snooping isincorrect?

After DHCP snooping is enabled in the view of a VLAN, it takes effect for the VLAN ‘ s DHCP messages received by all the interfaces of the device.

After DHCP snooping is enabled globally, the device processes only DHCPv4 messages by default if no parameter is specified.

DHCP snooping can prevent attacks by configuring trusted interfaces.

After DHCP snooping is enabled in the view of an interface, it takes effect for all DHCP messages on the interface.

Q110. As shown in figure, Clent1, C lent2 and Clent3 are simultaneously clients of RR1. Ri introduces 10 routes. It is assumed that the RGP is configured correctly. The neighbor relationship has been established, how many route entries exist in the BGP routing table of the most clIient3?

Q111. An engineer performed the ingestion operation on an OSPF router in a network of the company, is the following statement about the introduction of the routing LSA correct?

The Advertising Router report is set to as the Router ID of ASBR

Net Mask is set to all 0

Link State lD is set as the destination network segment address

Using the Link State ID and Advertising Router, you can uniquely identify an LSA

Q112. The following is the correct description of the aggregation of BGP? (Single Choice Questions).

After you configure aggregate ipv4-address mask , only aggregate routes are published, not detail routes.

For IPv6 routing, BGP supports manual coalescing and automatic aggregation

By default, BGP enables automatic aggregation

You can manually aggregate the routes in the BGP local routing table with a profile

Q113. Which of the following commands is used to adjust the cost of an IS-IS interface?

isis circuit-type

isis timer hello

isis circuit-level

isis cost

Q114. In the Huawei SD-WAN Solution, which of the following routing protocols is used to advertise VPN routes between CPEs?

RIP

OSPF

IS-IS

BGP

Q115. The following description of the PPPoE data frame is correct?( Multiple choice questions).

Once a PPPoE session is established, all Ethernet packets are unicast

The Ethernet_Type domain is fixed to Ox8863

When PPPoE passes session data, Code must be set to Ox0

The Session_ID of the PPP session is not allowed to change and must be the specified in the Discovery phase

Q116. R1 receives a common IPv6 packet from the CE and generates a packet carrying the SRH (Segment Routing Header), as shown in the figure. The packet is forwarded along the path R1 # R2 # R3 # R4. Identify the node type of each device based on their role in SRv6 processing.