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NEW QUESTION # 358
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. 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
- 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. The root protection feature is enabled for the specified port, and its port role can only remain as the specified port
Answer: C
NEW QUESTION # 359
Class IP address range 239000-239255255,What does 255 do? Radio
- A. Link-local multicast address, where traffic that uses that address includes network control messages and that address range is only the multicast address segment used by the routing protocol
- B. Any legitimate multicast traffic and multicast application can adopt this address
- C. Locally managed multicast address, which is valid only locally
- D. SSM multicast address, the multicast address segment is valid for the whole network
Answer: C
NEW QUESTION # 360
?BGP4+?,Update ????M IP_R EACH_NLRI ?????next hop network address ????? ?
- A. It can be just link-local address
- B. Can only be a link-local address
- C. You can carry a link-local address and a global unicast address
- D. at the same time Can only be a global unicast address
Answer: C
NEW QUESTION # 361
Which address prefix in the following options indicates that the address is globally unique and globally routable among unicast addresses in IPv6, similar to a public address in IPv4?(). Single choice questions).
- A. FE80::/10
- B. 2000:;/3
- C. ::1/128
- D. FE80:/10
Answer: B
NEW QUESTION # 362
The Option field in OSPFv3 appears in all LSAs
- A. False
- B. True
Answer: A
NEW QUESTION # 363
You are now troubleshooting a LAN, and you suspect that the error is due to a mismatch in the work mode.
Which switch interface error indicates that the 10/100/100O IEE gigabit interface operating mode does not match?
( Multiple choice questions).
- A. Super Small Frame
- B. Lag conflicts
- C. FCS error
- D. Excess Conflict
- E. Alignment error
Answer: A,B,C,D,E
NEW QUESTION # 364
You need to access the subnets of different VPNs in the VXLAN network , such as information about one subnet Bottom: RT=10:1ORT.100:1000 Export 1000 in EVPN instance and RT-100-100 in VPN instance.
Which of the following can be basketed for another subnet?
- A. All EVPN instances are 1000:1000
- B. 1000:1000 appears in VPN instances
- C. In VPN instances, it is 10:10
- D. EVPN implements 1000:1000 export
Answer: B,D
NEW QUESTION # 365
The role of Link-LSA in OSPFv3 does not include ?
- A. Advertise the per-port ID of this router to other routers on the link
- B. Advertise the link-local address
- C. of this interface to other routers on the link Advertise this IPv6 prefix list to other routers on the link
- D. Advertise to other routers on the link optional that is set in the Network LSA from which this link originates
Answer: D
NEW QUESTION # 366
In order to study the working mechanism of the OSPFv3 protocol, a project to build a network topology is as follows, the configuration of R1 and R2 is as follows, please ask the LSA switched between R1 and R2 What are the types?
- A. Link-LSA
- B. network-LSA
- C. Inter-area-prefix-LSA
- D. Router-LSA
Answer: A,B,D
NEW QUESTION # 367
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. 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
- D. 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
Answer: B,C
NEW QUESTION # 368
Router A has an IP route entry with a purposeful CIDR block of 10001/32 and an outgoing interface of GigabitEthernetO/0/1. Now add the following configuration: acd number 2000 rule 10 permit source1001.10#traffic classifier test if-match acl 2000 # traffic behavior test remarkdscp cs3#traffic policy test classifier test behavior test# interfaceGigabitftherneto/0/1 ip address 1001212552552550 traffic-policy test outbound#assuming router A received a destination IP of 10001 Of packets, the following statements are correct:
- A. If the packet source IP address is 1001.2, it cannot be forwarded
- B. If the packet source IP address is 1001.2, it can be forwarded while the DSCP field remains unchanged
- C. If the packet source IP address is 1001.1, it can be forwarded while the DSCP field is marked as CS3
- D. If the data packet source lIP address is 1001.2, it can be forwarded with the DSCP field marked CS3
Answer: B,C
NEW QUESTION # 369
The following description of the BGP route reflector is ?( Multiple choice questions).
- A. A network of bones is divided into multiple reflection clusters, each of which configures the other RRs as non-clients, and establishes an IBGP full connection between the RRs.
- B. The route learned from the client, all non-clients and clients published to this RR.
- C. Cluster_List is an optional non-staging property for ring protection within the cluster.
- D. The Originator_ID attribute is generated by the Route Reflector (RR) for inter-cluster ring protection.
Answer: A,B
NEW QUESTION # 370
Assuming that the shaping rate of a port is 10OMbps, the input loans and RIP of P configurations of each service of the interface are as follows: Then after the first round of scheduling, EF How many loans are allocated by the queue?( Single choice questions).
- A. 30M
- B. 90M
- C. 25M
- D. 15M
Answer: C
NEW QUESTION # 371
The rules for RR to publish routes break the rules for horizontal segmentation of IBGP, so it is possible to cause loops within the AS. What routing attributes does RR use to prevent loops?
- A. Originator ID
- B. Cluster List
- C. AS-PATH
- D. Nexthop
Answer: A,B
NEW QUESTION # 372
In an MPLS VPN network, different CE devices exchange routing information with the same PE device using different routing protocols, and different CE devices use routing protocols that are independent of each other
- A. False
- B. True
Answer: B
NEW QUESTION # 373
The following description of the RD attribute filter for BGP is correct?
- A. There is always an "or" relationship between the rules configured by RD-filter.
- B. If RD-filter is configured, but the routed RD is not matched with any of the RDs defined in the rule, the default match result is permit.
- C. Multiple rules are matched in the order in which they are configured.
- D. If RD-filter is not configured, but the RD-filter is referenced for filtering, the matching result is deny.
Answer: A,C
NEW QUESTION # 374
During the LDPsession setup process, the active party first sends the Illitalization information to negotiate the parameters, and if the passive party does not accept the negotiation parameters, which of the following messages will be sent? <(Single select).)
- A. Hello Message
- B. Error Notification Message
- C. Initialization Message
- D. Keepalive Message
Answer: B
NEW QUESTION # 375
SSH uses asymmetric encryption algorithms AES and DES to achieve security for data transmission, and uses HMAC to ensure the complete integrity of integer data
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION # 376
In a data communication session between two hosts, which level does the session layer of the oSI model of the host on one end communicate with the osl mode of the host on the other end?
- A. Communicate with the data link layer at the other end
- B. Communicate with the physical layer at the other end
- C. Communicate with the conversation layer on the other end B Communicate with the application layer at the other end
- D. Communicate with the presentation layer at the other end
Answer: C
NEW QUESTION # 377
Regarding the OSPFv3 protocol, the following description is incorrect?
- A. In the same OSPFv3 process under the same interface, you can run multiple instances of
- B. You can support running multiple instances on a single link
- C. In the case of sharing a single router, each OSPFV3 process runs independently
- D. OSPFv3 message header will contain the Instance ID field
Answer: A
NEW QUESTION # 378
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