Updated H12-831_V1.0-ENU Exam Questions Are Valid For Huawei H12-831_V1.0-ENU Exam Prearation

Come to get the right H12-831_V1.0-ENU exam materials to prepare for your HCIP-Datacom-Advanced Routing & Switching Technology V1.0 exam. We have the most updated H12-831_V1.0-ENU exam questions as the valid preparation materials for Huawei HCIP-Datacom-Advanced Routing & Switching Technology V1.0 certification exam.

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Begin to Test:

1. When upgrading the device software, which of the following descriptions about the operation window time is wrong?

The operating window time only needs to be informed to the network maintenance personnel, not to the users

To reserve a certain time for troubleshooting

Determined by user service interruption time

The time must be greater than the execution time of the upgrade operation

Question 1 of 25

2. What is the core idea of network troubleshooting?

Confirm the business traffic path

Top-down approach

Gathering Information

Judgmental Analysis

Question 2 of 25

3. If no security policy is configured between firewall domains, or when searching for a security policy. If all security policies are not matched, the default interzone packet filtering action is executed by default is?

Only allowed to pass some part

Refuse to pass

Escalate to the administrator

Different default actions should be different

Question 3 of 25

4. Which of the description of business priority in DSCP is correct?

AF has higher priority than EF

AF11 has a higher packet loss rate than AF12

CS has the highest priority

AF11 has higher priority than AF4

Question 4 of 25

5. The DHCP protocol can assign some TCP/IP-related parameter information to the client. In this process, DHCP defines a variety of messages. The encapsulation of these messages is?

TCP encapsulation

UDP Fashion

PPP encapsulation

IP Packaging

Question 5 of 25

6. The definition of OPX is?

Maintenance costs

Total Cost of Ownership

Operating costs

Operation and maintenance costs

Question 6 of 25

7. When configuring MPLS VPNI, the administrator configured the command: interface GigabitEthernet0/0/0 ip binding vpn-instance VPN1 Interface GigabitEthernet0/0/1 ip binding vpn-instance VPN2. Which of the following description is wrong?

This configuration command is usually configured on the PE device

The function of this command is to bind the G0/0/1 and G0/0\/2 interfaces on the PE device to the VPN instance assigned to the customer network

After an interface on the device is bound to a VPN instance, the interface becomes a private network interface, and a private network address can be configured and a private network routing protocol can be run.

If you unbind the device from the interface and the VPN instance, it will not automatically clear the IPv4 or IPv6 configuration under the interface bound to the VPN instance.

Question 7 of 25

8. In the alarm management function of eSight, its alarm levels are divided into the following four types:

Urgent, Minor, General, Reminder

Urgent, Important, Main, Reminder

Urgent, Important, Warning, Reminder

Urgent, Important, Minor, Reminder

Question 8 of 25

9. LDP neighbor discovery has different implementation mechanisms and regulations. Which of the following description of LDP neighbor discovery is wrong?

LDP discovery mechanism includes LDP basic discovery mechanism and LDP extended discovery mechanism

LDP basic discovery mechanism can automatically discover LDP peers directly connected to the same link

LDP Extended Discovery Mechanism Can Discover Non-Directly Connected LDP Peers

The LDP discovery mechanism needs to clearly specify the LDP Peer.

Question 9 of 25

10. The QoS technique commonly used for congestion avoidance is?

GTS

Car

WRED

Question 10 of 25

11. The three basic characteristics of an SDN network architecture are:

Transfer control separation, centralized control, open interface

Transfer control separation, decentralized control, open interface

Centralized transfer control, centralized control, open interface

Transfer control separation, centralized control, closed interface

Question 11 of 25

12. Which of the following description of "packet marking" is incorrect?

The QoS information field of the packet can be marked

DSCP IP Precedence information of IP packets can be marked

The 802.1Q information of Vlan packets can be marked

The MAC of the message can be marked

Question 12 of 25

13. When configuring a RADIUS server template on a Huawei switch, which of the following options are optional configuration parameters?

Authentication server address and port

RADIUS automatic detection of users

Accounting server address and port

Shared-key

Question 13 of 25

14. Different virtual machines can use the VTEP tunnel established by vswitchi to communicate with VXLAN. Then the communication process of VXLAN is: 1 The source VTEP encapsulates the ARP broadcast sent by the source VM into a multicast packet and sends it to the L3 network. 2 After receiving the multicast packet, the destination VTEP learns the mapping relationship between the source VM and VTEP, and forwards the multicast packet to the local VM. 3 Local unicast response. 4 The destination VTEP encapsulates the Vxlan tunnel, establishes a mapping table and encapsulates it, and then unicasts it to the source VTEP. 5 The source VTEP receives the response and establishes the mapping relationship between the target VM and the target VEP, removes the tunnel and forwards it to the source VM. 6 The source VM and the target VM communicate unicast packets through the tunnel.

1-3-2-4-6-5

3-5-2-4-1-3

1-2-3-4-5-6

1-5-6-4-3-2

Question 14 of 25

15. ASPF (Application Specific Packet Filter) is a packet filter based on the application layer. It checks the application layer protocol information and monitors the linked application layer protocol status, and implements a special security mechanism through the Server Map table. Which of the following statement about ASPF and Server map table is wrong?

ASPF monitors messages during communication

ASPF dynamically creates and deletes filtering rules

ASPF dynamically allows multi-channel protocol data to pass through the Servermap table

The five-tuple Server-map entry implements a similar function to the session table

Question 15 of 25

16. In the MPLS network, the switch will assign the description of the label assignment method, which of the following is correct?

It can be up to the downstream SR to decide to assign a label to a specific FEC

Downstream on demand DoD (downstream on demand) refers to a specific FEC

The downstream self-allocated label method refers to a specific FEC

The label distribution methods used by upstream LSR and downstream LSR with label distribution adjacencies can be consistent

Question 16 of 25

17. The main technical schools of SDN advocate that SDN adopts a layered open architecture. Which technical advocates and defines centralized architecture and Openflow?

ETSI

ONF

ITU

IETF

Question 17 of 25

18. The dynamic IP address assigned to the client by the DHCP server. Usually there is a certain rental period, which of the following description of the rental period is wrong?

The lease renewal timer is 50% of the total lease period. When the "lease renewal timer" expires, the DHCP client must renew the IP address

The rebinding timer is 87.5% of the total lease period

If the "rebinding timer" expires, but the client has not received a response from the server, it will always send a DHCP REQUEST message to the DHCP server that has previously assigned an IP address until the total lease expires.

If the client receives a DHCP NAK message within the lease period, the client will immediately stop using this IP address and return to the initialization state, and re-apply for a new IP address

Question 18 of 25

19. Regarding the description of OSPF's neighbor relationship failure, which of the following statements is false?

Stalling in ExStart state may be due to MTU mismatch between neighboring routers

Stalling in the lnit state indicates that the router has received the neighbor's Hello packet, but the Hello packet does not contain the OSPF Router ID of the router

The two router databases are synchronized, and an error occurs in the SPF calculation. It must be because the router ID is duplicated

For a pair of DR Others on an Ethernet link

Question 19 of 25

20. In the firewall interzone security policy, which of the following data flow is not in the outbound direction?

Data flow from the Trust zone to the DMZ zone.

Data flow from the Trust zone to the Untrust zone.

Data flow from the Trust area to the Local area.

Data flow from the DMZ zone to the Untrust zone.

Question 20 of 25

21. Which of the following is the scope of manual setting of VRRP priority?

1~127

0~127

1~254

0~254

Question 21 of 25

22. Which of the following commands is used to configure VRRP preemption delay?

vrrp vrid 1 preempt-delay20

vrrp vrid 1 preempt-mode timer delay 20

vrrp vrid 1 timer delay 20

vrrp vrid 1 preempt-timer20

Question 22 of 25

23. Which of the following limitations of traditional networks do not include?

The speed of new network service upgrade is slow.

The implementation of network protocols is complex, and the operation and maintenance are difficult.

Different manufacturers' equipments have similar operation commands, and the differences are small and easy to operate.

The adjustment capability of the traffic path is not flexible enough.

Question 23 of 25

24. In the scenario of multi-level RR, a large number of secondary RRs will be connected to the primary RR, which may cause the BGP routing table of the primary RR to overflow. What method can be used to reduce the risk of overflow of the BGP routing table of the level RR?

ORF

Route Aggregation

Routing Control

Set the same Cluster-lD

Question 24 of 25

25. Regarding the difference between NSR and NSF, which is correct?

NSF does not require neighbor routers to complete

NSR must rely on neighbor routers to complete

NSF must rely on neighbor routers to complete

Both NSR and NSF require neighbor routers to complete

Question 25 of 25

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