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Huawei H12-891_V1.0-ENU certification exam is a challenging exam that requires a lot of preparation and dedication. However, passing H12-891_V1.0-ENU exam can help professionals advance their careers and increase their earning potential. It is an excellent certification to have for those who wish to work with Huawei technologies and want to be recognized as experts in the field of data communication.
NEW QUESTION # 28
You try to trace a remote Internet address on your PC, but the traceroute stops after it reaches a router, and currently, the router should be in the incoming direction of the serial interface With an ACL "rule5 permit tcp source any destination any", you need to add which of the following ACLs to the router for traceoute to work
- A. Rule 10 permit icmp source any destination any icmp-typettl-exceeded rule 15 permit source any destination any icmp-type echo-reply
- B. Rule 10 permit icmp source any destination any icmp-type echo rule 15 permiticmp source any destination any icmp-type net-unreachable
- C. Rule 10 permit icmp source any destination any icmp tti-exceeded rule permit icmp source any icmp-type port-unreachableE. Rule 10 permit udp source any destination any rule 15 permit icmp source any destination any icmp-type protocolunreachable
- D. Rule 10 permit tcp source any destination any
Answer: C
NEW QUESTION # 29
When you troubleshoot a local area network with Huawei equipment deployed, you find that there are a large number of unicast frames with unknown source AC addresses in the local area network.
A large number of unknown source MAC addresses single-plug frames can cause the switch the biggest danger is?
- A. Consumes a TCAM table entry
- B. Memory that occupies the cache ton
- C. Consume the available bandwidth
- D. Increases the power consumption of the power supply
- E. Consume the MAC address table entry available in the system
Answer: E
NEW QUESTION # 30
An engineer uses 2 routers to test Pv6 services and runs OSPFV3 to achieve interconnection and interoperability of IPV6 networks. The RI has access to the loopback address of R2. The engineer looks at ri's OSPF3 routing table entry and finds that there is no route reaching the R2 loopback address It can't be caused by which of the following?
- A. R2 does not advertise the loopback address
- B. R2 does not enable OSPFv3 on the loopback port
- C. R2 in area 0 to advertise the loopback into a different OSPFv3 process
- D. R2 does not configure the Router ID used in the OSPFv3 process
Answer: A
NEW QUESTION # 31
The following description of CBWFQ is correct?
- A. CBwFQ is delayed, jittered and bandwidth guaranteed for traffic catch
- B. CBWFQ can only be configured in hierarchical policies-maps. The parent policy-map performs supervision and the child policy-map performs
- C. CBwFQ can be configured with MQC and service-policy is applied to the exit direction
- D. CBwFQ can be used for both egress and inbound interfaces
Answer: C
NEW QUESTION # 32
CORRECT TEXT
When judging the old and new LSA, the serial number parameter and the age parameter are used, and the following two parameters are correct for? (Multiple choice questions).
- A. Both the serial number and age parameters can determine whether the LSA is old or new, and the router prioritizes the sequence to participate in the teaching, and the larger the better
- B. When the router receives two LSAs, where the sequence number is the same and the checksum is the same, the smaller the age, the better
- C. If the serial number of the LSA reaches the end value of Ox7FFFFFFF, the current router advertises an LSA with an age of 3600S
- D. When the router receives-The age of the LSA is set to 3600S, the LSA is unavailable
Answer: A,C
NEW QUESTION # 33
OSPFv3 uses the same route advertisement method as OSPFv2: advertising is done through the network command in the OSPFv3 area view.
- A. False
- B. TRUE
Answer: A
NEW QUESTION # 34
In an HW MPLS network, what parameters are used to define a forwarding equivalent class??
- A. IP prefix
- B. RSVP requests resource reservation
- C. from CE Layer 2 links
- D. BGP MED?
Answer: A,C
NEW QUESTION # 35
The following statement about IPSG technology is correct (single choice).
- A. The ip source checkuser-bind check-item command is used to configure VLAN- or interface-based IP packet checks, which take effect for both dynamic and static table entries.
- B. The IPSG can perform binding table match checks on IP packets entering and leaving the interface.
- C. On Huawei routers, ipSG functions can be configured in Vlanif.
- D. If an interface is configured as the OKCP Scooing Tust interface, the interface can normally receive DHCP ACK and DHCPNAK responded to by the OHHNP server and DHCPOffer packets, other untrusted ports cannot receive these packets properly.
Answer: D
NEW QUESTION # 36
MACsec provides users with secure MAC layer data sending and receiving services.
Which of the following is not a service available by ACsec?
- A. Integrity check
- B. Controllability check
- C. Data source authenticity verification
- D. User data encryption
Answer: B
NEW QUESTION # 37
An advanced access control list is a sequence of rules consisting of permit |deny statements that can match IP messages based on which attributes? (). Multiple select).
- A. Destination address
- B. Source address
- C. Destination port number
- D. Source port number
Answer: A,B,C,D
NEW QUESTION # 38
The following statement about IPv6 Over VXLAN is wrong as? (Single choice questions).
- A. IPv6 over VXLAN solves the problem of insufficient IP address resources for end tenants.
- B. IPv6 Over VLANs do not generate ND table entries.
- C. The tunnel between VXLAN Layer 2 and Layer 3 gateways is an IPv4 network.
- D. IPv6 over VXLAN means that the Overlay network of the VXLAN is an IPv6 network.
Answer: B
NEW QUESTION # 39
The following description of BGP loop protection is correct: multi-select
- A. Any routing information from an IBGP peer is advertised to the other IBGP peers
- B. Any update information received from the EBGP peer that contains its own AS number in the AS-PATH attribute is discarded via the AS-PATH attribute
- C. BGP routers do not announce any slaves. The EBGP peer comes to update the information to its EBGP peer
- D. Non-RR BGP routers do not announce any updates from IBGP peers to other IBGP peers
Answer: B,D
NEW QUESTION # 40
Is the following description of ospf virtual links correct?
- A. Virtual links can be used to solve the problem of zone 0 being segmented
- B. The cost of a virtual connection is zero and is the optimal link
- C. A virtual connection can be established in any area, after which it itself belongs to the region
- D. The virtual connection ip is used as the link address
Answer: A
NEW QUESTION # 41
SNMPv3 defines which security features
- A. Privacy
- B. Domain checking
- C. Accounting
- D. Authentication
Answer: A,D
NEW QUESTION # 42
QinQ technology is a technology that extends the VLAN space by adding a layer of 8021Q tag messages to the extended VLAN.
The function of space, the following statement about QInQ is mispronounced?
- A. basic QinQ is implemented based on the interface orientation
- B. QinQ increases the number of VLANs to 4095*4095
- C. Flexible QinQ can be based on different inner layerS Tag and different outer layers of Tag, for user VL. The division of AN is more granular
- D. QinQ technology enables private VLANs to pass through the public Network
Answer: B
NEW QUESTION # 43
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