[Jan 30, 2024] H12-891_V1.0 Practice Exam Dumps - 99% Marks In Huawei Exam
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NEW QUESTION # 57
A campus deploys OSPF to achieve network interoperability, and an engineer configures R2 as shown in the figure, then the following description of the LSA in the OSPF network is wrong
- A. There is no Type3 LSA flooding in Area2
- B. Area2 contains Type5 LSA generic adverb
- C. There is no Type3 LsA flooding within Areal
- D. There is Type5 LSA flooding within Areal
Answer: C
NEW QUESTION # 58
WRED is configured on the newly deployed router HW. What is the correct description of the WRED features below? (Multiple choice questions).
- A. Avoid global synchronization by selectively dropping multiple TCP streams
- B. When the flow exceeds the minimum threshold, WRED begins to discard all inlet flow (tail drop)
- C. Low-bandwidth traffic is easier to drop than high-bandwidth traffic
- D. WRED can set different drop thresholds and packet loss rates for packets of different priority
Answer: A,D
NEW QUESTION # 59
There are two Communily filters: ip comimuniy-lite lpemit 101201 ip community fiter 2permit101 ip commmuriyfilter 2pemit21 Regarding the above ommuniyfiter, the correct description is ?( Multiple choice questions).
- A. A BGP route matches community-filter2 only if the group attribute values carried in the BGP route include 100:1 and 200:1
- B. As long as the group attribute value carried in the BGP route contains 100:1 or 200:1, or both, the BGP route matches the community-filterl
- C. As long as the group attribute value carried in the BGP route contains 100:1 or 200:1, or both, the BGP route matches community-filter2
- D. The BGP route matches community-filter 1 only if the community attribute values carried in the BGP route contain 100:1 and 200:1
Answer: C,D
NEW QUESTION # 60
Regarding the Stub region in the OSPF protocol , the following statement is correct.
- A. Injecting typeT LSA
- B. ASBR cannot exist in the Stub zone
- C. backbone areas that are not allowed in Stub regions cannot be configured as Stub regions.
- D. Virtual connections cannot traverse the Stub region.
Answer: A,B,C,D
NEW QUESTION # 61
The following statements about the VRRP protocol are correct (multiple choice).
- A. Both VRRPv2 and VRRPv3 support authentication
- B. VRRPv3 does not support authentication, while VRRPV2 does
- C. The owner of the Master IP address has a VRP priority of 255, and all configurable priorities range from
0 to 254 - D. VRRPv2 only applies to IPv4 networks, and VRRPv3 only applies to IPv6 networks
Answer: B
NEW QUESTION # 62
As a network administrator, which of the following protocols can I use for network device configuration?
- A. LLDP
- B. SSH
- C. NETCONF
- D. SNMP
Answer: C,D
NEW QUESTION # 63
Regarding the description of the security level of the configured firewall security zone, the error is ?
- A. For newly created security zones, the system defaults to a security level of 1
- B. Once the security level is set, it is not allowed to change
- C. Two security zones are not allowed to configure the same security level in the same system
- D. You can only set the security level for a custom security zone
Answer: A
NEW QUESTION # 64
Comparisons for primary switch elections in the stack include ?
- A. MAC address
- B. Stack priority
- C. Health status
- D. Stack ID
Answer: A,B,C
NEW QUESTION # 65
MACsec provides users with secure MAC layer data sending and receiving services. Which of the following is not a service available by ACsec?
- A. User data encryption
- B. Integrity check
- C. Controllability check
- D. Data source authenticity verification
Answer: C
NEW QUESTION # 66
In different scenarios, RSTP provides different protection functions, and the wrong statement about this statement is
- A. When the anti-TC-BPDU packet attack feature is enabled, the number of times the switching device processes IC BPDU packets per unit time is configurable
- B. The root protection feature is enabled for the specified port, and its port role can only remain as the specified port
- C. after the BPDU protection function is enabled on the switching device, if the edge port receives RST BPDU, the edge port will be set to a non-remote port and the spanning tree calculation will be re-performed
- D. Start the specified port of root protection, when the port receives a better RSTBPDU, the port will enter the Discarding state and is no longer forwarding packets. If the port does not receive a better RSTBPD for a period of time then automatically revert to the normal Forwarding state
Answer: C
NEW QUESTION # 67
The correct description of the extended features of ISIS is ?
- A. ISIS can choose whether to authenticate incoming SNP and LSP packets
- B. When the amount of information in the Link State Protocol data packet PDU to be released by ISIS is too large, the ISIS router will generate multiple LSP shards to carry more ISIS information.
- C. After you enable the LSP shard extension feature of your router, you can use it without restarting the ISIS process.
- D. If there are other vendors' devices on the network and do not support the LSP sharding function, the sharding expansion mode must be configured as Model-1, otherwise the message will not be recognized by other vendors' devices.
Answer: A,B,D
NEW QUESTION # 68
Deploying the ISIS protocol in an IPv6 environment is true in the following statement (radio).
- A. IS-IS sient is configured under the finger port, this interface will not send ISIS packets, but will receive ISIS packet
- B. By default, the DIS priority of broadcast network interfaces at Level-1 and Level-2 is 1 B In broadcast networks, the DIS priority for IPV4 and IPV6 can be set separately
- C. In the same broadcast network. If each router supports both IPV4 and Pv6, the DISC of JPV4 and Pv6 must be the same device
Answer: A
NEW QUESTION # 69
The Serial Number field of LS is used to detect expired and duplicate LSAs. The field is a 32bt signed integer, so the small serial number is Ox8000000
- A. False
- B. True
Answer: A
NEW QUESTION # 70
What messages does an NMS (Network Management Station) running SNMPV1 send to the agent?
- A. Trap,Get ? Set
- B. Get,Set,Getnext ? GetBulk
- C. ? Trap
- D. Get, Set ?Getnext
- E. Get,Set ? GetBulk
Answer: D
NEW QUESTION # 71
If the Option field value in the 0SPFv3 Hello message issued by the router's GIgabit Ethermet0/0 interface is
0x000013, the following description is correct
- A. Router A supports AS-An External-LSA flood
- B. Router A is an OSPFv3 device with forwarding capability
- C. The Gigabit/thernetO/0/0 interface of Router A adds IPv6 routing to compute
- D. Router A's Gigabit/thernetO/0/0 interface belongs to the NSSA zone
Answer: A,B,C
NEW QUESTION # 72
In order for routers at both ends of the IPv6 over lPv4 manual tunnel to exchange routing information, OSPV3 can be enabled on the tunnel, osPFv3 will be able to form a normal neighbor relationship, and the tunnel interface will be treated as a P2P link interface.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION # 73
Off-stem cross-domain VPN-Option B scenario, the following description is incorrect?
- A. The outer layer tag is exchanged between two ASBRs to vpnV4 routes.
- B. two ASBRs IP-EBGP neighbor relationships.
- C. During the packet forwarding process, it is necessary to exchange the VPN's private network LSP on the
- D. The cross-domain VPN-Option B scheme is not limited by the number of interconnection links between ASBRs
Answer: A
NEW QUESTION # 74
There are three port roles defined in RSTP, with alternative ports and backup ports flags in STP messages The port role values within the fields are consistent, all of which are 01
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION # 75
In the multi-level RR scenario, the first-level RR will be connected to a large number of second-level R, which may cause the BGP circuit of the first-level RR to overflow from the table Risk of R BGP routing table overflow?( Radio).
- A. Route Aggregation
- B. ORF
- C. Set the same Cluster-ID
- D. Route Control
Answer: A
NEW QUESTION # 76
?? ipIp- prefoi p prefierame lndeindeoxrunmber)( pemit demy)ip+4adrssmasklengh gratrequa grater-cqual abel]lescqualesequl ole) for * Pprefofiier? If a pre-list of tooequal has been specified, but the greater-equal has not been specified, then how much of the prefix's range is sufficient?(). Radio neck).
- A. [less-equal-value,32]
- B. [mask-length, less-equal-value]
- C. [0, less-equal-value]
- D. No limit
Answer: B
NEW QUESTION # 77
In RSTP , which port provides a backup path to reach the root node of the spanning tree? What state is the port in?
- A. Alternate Port and Learning Status
- B. Designated port and Listening status
- C. Alternate Port and Forwarding Status
- D. Root Port and Listening Status
- E. Alternate port and Discarding status
Answer: E
NEW QUESTION # 78
If there are multiple recipients in a multicast group, the administrator enables the IGMP-Snooping function on the switch connecting the recipient, and when the receiver receives the universal group query packet of the queryer from the switch, how should multiple recipients respond?
- A. All recipients will respond to the Report message only if IGMPvl is running.
- B. All recipients will respond to Report messages only if ICMPV2 is running.
- C. The first recipient whose response time time expires sends the Report message, the other receivers do not.
- D. All recipients will respond to the Report message
Answer: D
NEW QUESTION # 79
In the use of the LACP protocol, the following description is correct ?( Multiple select).
- A. A chain cluster that can be initiated through an order Join the member interface :interface GigabitEthemeto/0/1 shutdown interface igabitEthemetO/0/1 tunkportGigabitEthermet0/0/1 interface GigabitEthermet0/0/1 Undo shutdown
- B. You can avoid the Eth-Trunk interface from frequently shaking interface eth-trunk 1l lacp preempt enable lacp preempt delay delay-time with the following command
- C. Source IP address load sharing, interface eth-trunk1Load-balance src-dst-ip, can be configured in an enabled link aggregation group with the following command
- D. The member interface can be removed from an enabled link aggregation group with the following command: interface GigabitEthemeto/0/1 Shutdown nterface Gigabithemet/O/1undo eth-trunklinterface GigabitEthemet0/0/1 undo shutdown
Answer: B,D
NEW QUESTION # 80
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