H12-831_V1.0-ENU exam questions for practice in 2022 Updated 265 Questions
Updated Oct-2022 Premium H12-831_V1.0-ENU Exam Engine pdf - Download Free Updated 265 Questions
NEW QUESTION 89
Which of the following operations is not part of the middle stage of dissection?
- A. business test
- B. field defense
- C. cutover implementation
- D. Cutover preparation
Answer: A
NEW QUESTION 90
Which of the following series can be matched by the regular expression 100.S? (Multiple choice)
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A,B
NEW QUESTION 91
In the test phase of cutover, which standards that can indicate the test has been completed?
- A. The upper-layer application service test carried by the network is normal as the standard
- B. Test network business as normal as the standard
- C. Check that the network is running normally as a standard
- D. The configuration check result of the IP device is normal as the standard
Answer: A
NEW QUESTION 92
Which of the following statements about the MP_REACH_NLRI attribute of BGP4+ is correct? (Multiple choice)
- A. The value of AFI (address family) is 2, which represents IPv6
- B. The length of the next hop address can be 16 or 3
- C. When the length of the next hop address is 16, the Network Address of Next Hop carries the link local address
- D. The NLRI field carries IPv6 routing prefix and mask information
Answer: A,B,D
NEW QUESTION 93
(Drag and drop) As shown in the figure, there is a message containing three-layer label headers. Please select the corresponding values of the X, Y, and Z fields in the figure. (Decimal)
Answer:
Explanation:
NEW QUESTION 94
Regarding the description of the label encapsulation format in MPLS, which one is correct? (Multiple choice)
- A. The TTL field in the label is similar to the TTL (Time To Live) in the IP packet, and it also has the effect of preventing loops.
- B. The total length of a single MPLS label is 4 bytes (32 bits)
- C. For Ethernet and PPP packets, the label stack is located between the layer 2 header and the data like the "underlay*": when there is a VLAN tag, the MPLS header is placed between the Ethernet header and the VLAN tag
- D. The S field in the label: 1 bit, used to identify whether the label is a label at the bottom of the stack, when the value is 1, it is the penultimate layer label
Answer: A,B
NEW QUESTION 95
(Drag and drop question) The configuration shown in the figure is performed on R2 to filter all incoming routes. Suppose there is an entry on R1 AS_Path attribute is [100 200 300 400] BGP routes need to be sent to R2, please help network administrators in Adjust the AS order in the AS_Path attribute of the route on R1 to ensure that the route entry will not be routed by R2 route^policy AS-PATH permit node 10 if-match as-path-filter BGP route-policy AS-PATH deny node 20 ip as-path-filter BGP permit A[A2]00 400 100_
route-policy AS-PATH permit node 10 if-match ip-prefix BGP
apply as-path overwrite
ip ip-prefix BGP permit 10.0.0.0 24
- A. 300-A 400-B100-C 200-D
- B. 300-A 400-C 100-B 200-D
- C. 300-C 400-A 100-B 200-D
- D. 300-B 400-A 100-C 200-D
Answer: A
NEW QUESTION 96
Ethernet is a network that supports broadcasting, and once there is a loop in the network, this simple broadcasting mechanism can cause catastrophic consequences. Which of the following phenomena may be caused by loops
- A. CPUOccupancy exceeds70%
- B. The device cannot log in remotely
- C. use on the deviceDISPLAY INTERFA, CEcommand to view interface statistics, it is found that the interface receives a large number of
- D. pass throughPINGSerious packet loss during network test with command
Answer: A,B,C,D
Explanation:
broadcast message
NEW QUESTION 97
During the test phase of the cutover, the criteria to indicate that the test has been completed are:
- A. The upper-layer application service test carried by the network is normal as the standard
- B. IPThe configuration view result of the device is normal as the standard
- C. Test that the network service is normal as the standard
Answer: A
Explanation:
D, check that the network is running normally as a standard
NEW QUESTION 98
In an MPLS VPN network, data packets are forwarded when they enter the public network. Will be encapsulated with two layers of MPLS labels.
Which of the following descriptions are correct about the processing of the data packet? (Multiple choice)
- A. The outer label of the packet received by the penultimate hop device is 3
- B. The Egress PE device receives untagged IP packets
- C. The Egress PE device correctly sends the data packet to the corresponding VPN according to the inner label
- D. The packet is forwarded to the Egress PE device after the outer label pops up on the penultimate hop device
Answer: C,D
NEW QUESTION 99
Senior engineers with rich experience can quickly solve faults only by experience, with high efficiency.
- A. False
- B. True
Answer: B
NEW QUESTION 100
Which of the following reasons may cause the hosts in the same--VLAN LAN to fail to communicate with each other
- A. the wrong port is configured on the machine, andMA, Caddress binding
- B. port isolation is configured on the switch
- C. switchMA, Caddress learning errors
- D. interface is artificialshutdownor the physical interface is damaged
Answer: A,B,C,D
NEW QUESTION 101
Network administrator A wants to use AS-Path Filter to match the BGP routing attribute AS_PATH[100200300]. Network administrator A sorts out the four configurations in the figure. Which of the following configurations can meet the requirements of network administrator A?
- A. way B
- B. way A
- C. WayC
- D. way D
Answer: A,B
NEW QUESTION 102
According to the configuration shown in the figure below, you can know that how many interfaces of R4 are advertised into IS-IS?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 103
Regarding BGP/MPLS IPVPN routing interaction, which of the following description is wrong?
- A. The egress PE can send IPv4 routes to the remote CE through BGP, IGP or static routing
- B. The exchange between PE and CE is IPv4 routing information
- C. After the egress PE receives the VPNv4 route advertised by the ingress PE, it filters the VPNv4 route according to the RT attribute carried by the route
- D. The ingress PE will convert the IPv4 route received from the CE into a VPNv4 route, and save it according to different VPN instances
Answer: A
NEW QUESTION 104
The correct description for the configuration on this switch is:
[Huawei]dhcp enable
[Huawei]interface Vlanif 100 [Huawei-Vlanif 100]dhcp select relay
- A. YoujizhiDHCPYuegen server and mouthDHCP relayByKmust be enabled globallyDHCP
- B. VANIF100The interface will receive theDHCPmessage, sent to the outside through the relayDHCP Server
- C. forVLAN100interface designationDHCPThe server group isdhcpgroupl
- D. First you need to createDHCPmonth starter group and add to server groupDHCPserver
Answer: A,B,C,D
NEW QUESTION 105
There is a concept of forwarding equivalence class (FEC-Fowarding Equivalence Class) in MPLS, so FEC does not Can the allocation be made based on which of the following criteria?
- A. sFragment offset (Fragment office)
- B. Application protocol(Application Protocol)
- C. Service type(Class of Service)
- D. target address(Destination Addess)
Answer: A
NEW QUESTION 106
According to this picture, you can judge
- A. R1 with 3000:FDEA::3 is IB6P neighbor
- B. R1 has a TCP connection with 3000:FDEA::3
- C. R1 learned route 3002 through IBGP::3/128
- D. The optimal outgoing interface for R1 to access room 3000: FDEA::3 is GigabitEtherneto/0/1
Answer: A,C
NEW QUESTION 107
Which of the following actions may affect the normal operation of the customer's network?
- A. Routing Protocol Configuration Changes
- B. software upgrade
- C. Hardware expansion
- D. Device naming
Answer: A,B,C
NEW QUESTION 108
Engineer Guan used two routers to test IPv6 services. By running the BGP4+ module to communicate with the branch, as shown in Juxin, an engineer captured packets to view the Updte packets sent by R1. Which of the following statements is true about the description of the message information?
- A. The maximum and the preceding length of the routing address described in this packet is:2001:db8:2345:l::l/128
- B. The next hop address of the route described in this packet is:2001:db8:2345:l::l\
- C. This message describes the current cancellationIPv6routing
- D. This message describes only oneBGPAttribute: Multi-protocol unreachableNLRIAttributes
Answer: A,C,D
NEW QUESTION 109
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