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最新のHCIE-Datacom H12-891_V1.0-ENU実際の無料試験問題
質問 # 349
XLAN uses BGP EVPN to establish a tunnel, what type of message is used? (Single choice questions).
- A. Type4E. Type5
- B. Type2
- C. Type3
- D. Typel
正解：C
質問 # 350
What is the following description of LDP reliability?
- A. LDP and LGP linkage, the need for IGP to suppress the release of routes, to ensure that LDP and LGP paths are consistent
- B. Manually configured LDP FRR policy defaults to a 32-bit backup route that triggers LDP to establish a backup ISP
- C. LGP GR (Graceful Restart) takes advantage of the high difference between the LS forwarding plane and the control plane to realize that the device forwards without interruption when the protocol is restarted or the master-standby is reversed
- D. The LDP ERR can also generate an ISP for a tag map from a non-optimal next hop, and create a forwarding table entry as a backup of the primary LSP
正解：B
質問 # 351
IS-IS supports the processing and computation of IPv6 routes by adding ATLPs to carry IPv6 addresses and reachability information.
- A. TRUE
- B. FALSE
正解：A
質問 # 352
Level-1-2IS transmits Level-2LSP to the Level-1 area if the AT location 1 in Level-2LSP is delivered It means that the Level-1lS in the area can be accessed to the outer area through Level-1-2IlS
- A. True
- B. False
正解：B
質問 # 353
What are the common ways to learn routing in BGP? (Multi-select)
- A. BGP routing for other AS is introduced
- B. receives neighbor routing information
- C. Introduce static routes
- D. Introduced Direct Route
正解：B、C、D
質問 # 354
Mainstream Layer 2 technologies such as VXLAN, TRILL, NVGRE and MPLS
- A. True
- B. False
正解：A
質問 # 355
The following about BGP routing, what is the wrong description?
- A. For next_hop unreachable routes are invalid cat by and do not participate in the preference. Flogging case
- B. Non-aggregate routes take precedence over aggregate routes.
- C. In the case of PrefVal, Local_Preference equality, if the BGP preference of the locally generated route, IBGP route, EBGP route is equal, the valid reference of this generation is preceded by priority.
- D. See the following entry in the BGP routing table: * *172 16 1. 11/32 0 00010 0? Indicates that the route is available non-optimal.
正解：B
質問 # 356
If you have a LOCAL AREA NETWORK running 8021D Spanning Tree Protocol, the non-root switch does not receive which parameter under the root switch?
- A. MaxAge
- B. Hello time
- C. Root cost
- D. Hold time
- E. Forward delay
正解：D
質問 # 357
In the topology shown in the figure. Running the OSPFv3 protocol over the entire network does not produce what type of LSA on R1 without external route introduction?
- A. Inter-Area-Prefix-LSA
- B. Inter-Area-RouterLSA
- C. Link-LSA
- D. Intra-Area-Prefix-LSA
正解：B
質問 # 358
What are the differences between traffic policing and traffic shaping?
- A. For traffic shaping, the router caches excess packets until bandwidth is available again
- B. The token bucket algorithm is used for traffic supervision, and the SPD algorithm is used for traffic shaping
- C. Traffic shaping is applied in the inlet direction and traffic supervision is applied in the outlet direction
- D. For traffic shaping, it can be over-CIR Traffic adjustment for the usage of the buffer
- E. For traffic policing, the usage of the buffer can be adjusted for traffic exceeding the CIR
正解：A、D
質問 # 359
The most effective way to view device warnings through the CLI is?
- A. Display interface brief
- B. Display clock
- C. Display current-configuration
- D. Display alarm
正解：D
質問 # 360
What are the main reasons why RSTP converges faster than STP?
- A. RSTP has a smaller timer
- B. RSTP has a smaller overhead
- C. RSTP does not converge based on timer
- D. RSTP increases the variety of port states
正解：C
質問 # 361
CORRECT TEXT
The following description of Filter-Policy is correct? (Radio).
- A. With Filter-Policy, on ASBR in OSPF, type5LSA and type7LSA can be applied. The build is filtered.
- B. When filtering routes using the pre-slow list, the table entry ip-prefxldeny0000 0 lese-qual 32 indicates that only the default route matches
- C. Filter-policy filters the link state information received or published, and can modify the properties of route entries.
- D. Prefix lists can be used to filter both routes and packets.
正解：C
質問 # 362
After you divide an interface of the firewall into the Untrust security domain, the interface belongs to the Untrust zone and no longer belongs to the Local zone.
- A. FALSE
- B. TRUE
正解：A
質問 # 363
As shown in the following figure, a part of the LSDB LSDB of a router LSDB is shown in the first one in the following figure. A new LSP has been received, the second one in the figure below, and the following statement is incorrect (single choice).
- A. In the case of a broadcast network, DIS will include summary information for this LSP in the next CSNP message.
- B. this router will put the newly received LSP into the LSDB
- C. If it is a point-to-point network, the router will send PSNP
- D. This router ignores LSPs received from neighbors
正解：D
質問 # 364
In the use of the CP protocol, the following description is correct?
- A. A member interface can be removed from an enabled link aggregation group with the following command: interface GigabitEthernet0/0/1 shutdown interface GigabitEthernet0/0/1 undo eth-trunk 1 interfaceGigabitEthernet0/0/1undoshutdown
- B. The Eth-Trunk interface can be avoided by frequent oscillation interface eth-trunkllacppreemptenablelacppreemptdelaydelay-time by following command
- C. The member interface can be joined in the link aggregation group by enabling the following command: interface GigabitEthernet0/0/1 shutdown interface GigabitEthernet0/0/1 trunkport
- D. Source A address can be configured for load sharing in an enabled link aggregation group with the following command: interface eth-trunk 110ad-balance src-dst-ip
正解：B
質問 # 365
There is a new HW office that needs to use their router as a DHCP server.
When configuring the DHCP server to provide DHCP services to the current office, what of the following items need to be configured?
- A. Configure dhcp address pool
- B. Configure manual binding
- C. Configure the startup file for the DHCP server
- D. Exclude unused IP addresses from the DHCP server
- E. Configure the timeout period for ping packets
正解：A、D
質問 # 366
What kind of scenario can use AS one path and one filter?
- A. Filter routes received from BGP neighbors based on the AS PATH attribute that the route carries. For example, the command peer x.X.x.x as path-filter import
- B. The apply clause in Routepolicy
- C. Filter routes sent to BGP neighbors based on the AS PATH attribute that the route carries. For example, the command peerx. X.x.x as path-filter export
- D. If-natch clause answer in Route-policy.
正解：A、C、D
質問 # 367
MQC, like PBR-can only be called under the device's Layer 3 interface.
- A. FALSE
- B. TRUE
正解：A
質問 # 368
Which of the following BGP attributes is not required in the Update message for a BGP route?
- A. Origin
- B. WITH
- C. AS_PATH
- D. Local-Preference
正解：B、D
質問 # 369
Regarding BGP/MPLS IP VPN routing interactions, the following description is incorrect?
- A. The egress PE can send an IPv4 route to the remote CE via BGP, IGP, or static routing
- B. The ingress PE changes the IPv4 route received by the CE to the VPNv4 route, and the storage
- C. After receiving the VPNv4 route issued by the ingress PE, the egress PE filters the VPNv4 route according to the RT attribute carried by the route
- D. PE is carried out according to different VPN instances What interacts with the CE is IPv 4 routing information
正解：A
質問 # 370
Unlike STP, RSTP has only one BPDU type, its value is 2, and there is no TCN BPDU.
- A. TRUE
- B. FALSE
正解：A
質問 # 371
The following information about MPLS tags describes the error as? (Single choice questions).
- A. When the tag value is 0, the tag must be ejected and the message must be forwarded based on IPv4
- B. By default, devices support php features, and the ERAS node that supports PHP assigns a tag value of 3 to the penultimate hop node
- C. If the bottom of the label identifies S=0, it indicates that the label is the bottom label and is directly forwarded to the IP.
- D. The MPLS tag is 4 bytes long and encapsulated between the link layer and the network layer.
正解：C
質問 # 372
The default configured switch has an empty MAC address table at this time, and Host A connected to the switch issues the first unicast data frame, so what will the switch do after receiving the teaching system? (Single choice questions).
- A. The switch will drop the data frame
- B. based on the mesh MAC address of the data frame. The switch caches the data frame and waits for the destination host to send the effect frame before forwarding it
- C. The switch records the source MAC address of the data frame and floods the data frame
- D. The switch will forward data to interface
正解：C
質問 # 373
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