最適なH12-891_V1.0試験準備問題集でHuawei H12-891_V1.0問題集PDFを試そう！[2023]
Huawei H12-891_V1.0試験受験生を確実にパスさせるH12-891_V1.0学習問題集
質問 # 221
Two routers, connected together through the serial port, but can not ping between each other , now check the port status as follows: Can the following information determine what the cause is?
- A. Insufficient link bandwidth
- B. The link layer protocols on both ends are inconsistent
- C. Subnet mask does not match the
- D. The IP addresses on both ends are not on the same network segment
正解：B
質問 # 222
For the description of firewall security zones, the following statement is correct?
- A. Different security zones of the firewall, the priority can be the same
- B. The built-in security zone of the Firewall can be deleted
- C. Different interfaces of the firewall can belong to the same security zone
- D. The same interface of a firewall can belong to different security zones
正解：C
質問 # 223
When configuring the source NAT and having no pat configuration parameters, which of the following statements is true?( Radio)
- A. Only source P address translation occurs
- B. Only destination IP address translation occurs
- C. Perform destination IP address and destination port translation
- D. Simultaneous source P address and source port translation
正解：A
質問 # 224
Regarding the BGP ring protection mechanism, is the following description correct?
- A. You can use the AS_ CONFED_SET attribute to prevent loops within a consortium.
- B. Routes learned from IBGP are not advertised to IBGP neighbors and are used to prevent routing loops inside the AS.
- C. The Cluster List property is used for loop guard within the reflector cluster, and the router rejects the route when it finds that the Cluster List of the route entry contains its own Cluster ID.
- D. The AS_ PATH attribute is used between autonomous systems to prevent ring cats
正解：A、B、D
質問 # 225
Man-in-the-middle attacks or IP/MAC spoofing attacks can lead to information leakage and other hazards, and are more common in the intranet, in order to prevent man-in-the-middle attacks or IP/MAC spoofing attacks, you can take the configuration method
- A. Configure the trusted/untrusted interface
- B. Configure DHCP snooping on the switch to interbolde with DAI or IPSG
- C. Enable DHCP snooping to check the chaddr field in a DHCP request message
- D. Limit the maximum number of MAC addresses allowed to be learned on the switch interface
正解：B
質問 # 226
Which of the following are used in Ethernet?
- A. 8023 Encapsulated Frame
- B. A MAC address in a non-canonical format
- C. Mac address in canonical format
- D. CSMA/CD in multiplexed interviews
- E. 8025 encapsulated frames
正解：A、C、D
質問 # 227
In the laboratory network, the network is built according to the following topology diagram, SWI is the default configuration, and SW2 disables the switch STP function.
- A. SWI's G0/0/1 enters the Discarding state
- B. SG0/0/2 for WI enters the Discarding state
- C. SW2 and G0/0/1 enters the Discarding state
- D. SW2 G0/0/2 enters discarding state
- E. No interface is backed up for blocking
正解：E
質問 # 228
As shown in the figure, the overload bit of ISIS is set in the configuration of router R3, and the following statement is correct
- A. Routes introduced by R3 through import-route will not be published. The LSP of R3 will not be able to spread to R1 and R2
- B. R3 initiates the load state, and R1 and RZ will not calculate the LSP of R3 cattle in the SP tree.
- C. When the router runs out of memory, the system automatically sets the overload flag bit in the sent LSP packets.
- D. R3's direct route will be ignored by R1 and R2 because of the setting of the overload bit .
- E. Irrelevant to whether the user has a set-overload command configured.
正解：C、E
質問 # 229
In an MPLS BGPVPN environment, if tags are distributed only through BGP and LDP, the MPLS tags of the message can be up to two layers of tags
- A. True
- B. False
正解：A
質問 # 230
Which of the following does the digital certificate not contain?
- A. Digital envelopes
- B. Digital signature
- C. Issued by
- D. Public key information
正解：A
質問 # 231
What is the relationship between CIR, BC and TC? (single select)
- A. TC=CIR/BC
- B. CIR=TC/BC
- C. CIR=BE/TC
- D. TC=BC/CIR
正解：D
質問 # 232
What are the following statements about 8021x, RADIUS, and HWTACACS certification? ( Multiple choice questions).
- A. Users can use 8021x authentication to access the network and complete identity authentication through RADIUS
- B. RADIUS authentication and HWTACACS authentication can perform two-factor authentication for the same user at the same time, which is more secure.
- C. RADIUS authentication is mutually exclusive with 8021x authentication.
- D. RADIUS authentication and WTACACS authentication are mutually exclusive and cannot be two-factor authentication for the same user at the same time.
正解：A、D
質問 # 233
What are the types of link types included in OSPF's route LSA?
- A. Stubnet
- B. P-2-P
- C. Fransnet
- D. VLINK
正解：A、B、C、D
質問 # 234
MACsec provides users with secure MAC layer data sending and receiving services. Which of the following is not a service available by ACsec?
- A. Controllability check
- B. User data encryption
- C. Integrity check
- D. Data source authenticity verification
正解：A
質問 # 235
Regarding route introduction, what is the following description of the error?
- A. By default, OSPF introduces an external route with a default metric of 1, and the level-2 network of the ingested external route type type, Type2
- B. Introducing IBGP routing in OSPF may cause routing loops
- C. ISIS, routes to Level After the 1 makes a route ingestion, if you do not manually configure the ingestion policy, a bad route will be formed.
- D. BGP supports both import and network when generating routes, and the network mode is more precise.
正解：C
質問 # 236
Command IP as-path-filter1 permit^12,*74$ can match to which AS_PSTH?
- A. AS_PATH(125 328 74 23)
- B. AS PATH Q236217 ? 2374)
- C. AS_PATH(32127423)
- D. AS_PATH(321122374)
正解：B
質問 # 237
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