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NEW QUESTION 103
The following information is the snmp-related configuration on a H3C network device:
snmp-agent
snmp-agent local-engineid 800007DB00E0FC79887C6877
snmp-agent community read public
snmp-agent community write private
snmp-agent sys-info version all
Which description of the result of snmp access to this device is correct?
- A. You can successfully access and set up this device through snmpv1
- B. You can successfully access and set up this device through snmpv2c
- C. You can successfully access and set this device through snmpV3
- D. No matter which version is adopted, this device cannot be accessed and set up
Answer: A,B
NEW QUESTION 104
As shown in the network, the switch enables RSTP, assuming that the cost of each link is the same, the following statements are correct:
- A. Assuming that the spanning tree operating mode of SWB and SWC is modified to STP, the Alternate port of SWD can still enter the forwarding state directly after it becomes the new root port
- B. If there are multiple alternate ports on the SWD, when the root port is down, SWD will select the port with the highest priority from these alternate ports as the new root port
- C. After topology convergence, SWD will have one port as an alternate port
- D. If the SWD port EO/1 is down, the SWD port E0/2 will immediately change from the Alternate port to the new root port
Answer: B,C
NEW QUESTION 105
As shown in the networking, SWA and SWB enable STP, SWC does not enable STP when initially Link 2 is not connected, PCB can send data to PCA, if Link 1 fails at this time, the maintenance personnel will connect Link 2, then The statement about the recovery process from PCB to PCA data transfer industry is correct (assuming PCA will not actively send data) __
- A. Because the SWA link interruption will cause the topology change processing process, which shortens the MAC address aging time of SWA and SWB, it takes 15 seconds by default for service recovery
- B. Service recovery needs to wait for the SWC MAC address to age, so the default time of 300 seconds is required
- C. When the SWB port E0/1 enters the Forwarding state, the topology change processing process will be triggered, so the final restoration of the service requires the default 30+15=45 seconds
- D. As SWB port E0/1 needs 30 seconds to enter the forwarding state by default, the service needs 30 seconds to recover by default
Answer: B
NEW QUESTION 106
Regarding RP and BSR, which of the following statements are correct?
- A. There can only be one BSR in a PIM-SM domain
- B. BSR is responsible for collecting and publishing RP information in PIM-SM domain i
- C. RP in PIM-SM can be specified manually or dynamically elected
- D. When configuring RP through dynamic election, you can configure the router that intends to become RP as C-RP
Answer: A,B,C,D
NEW QUESTION 107
By viewing the IGMP group information, you can learn the following:
- A. The address of the first host of the multicast group to send a Report message
- B. Multicast group information maintained by the router
- C. Multicast group IGMP querier
- D. Number of multicast group Report packets
Answer: B,C,D
NEW QUESTION 108
Regarding the configuration BPDU and TCM BPDU, the statements are correct
- A. Alternate port will neither send configuration BPDU nor TCN BPDU
- B. Configure BPDUs to be sent only from the designated port, and TCNBPDUs to be sent only from the root port
- C. The configuration BPDU is usually received only from the root port, and the TCNBPDU is only received from the designated port
- D. Configuration BPDUs are usually only sent periodically by the root bridge, and TCNBPDUs may be sent by other bridges except the root bridge.
Answer: A,B,C,D
NEW QUESTION 109
Two routers RTA and RTB are connected through a LAN to form a VRRP backup group. The IP address of HostA in the LAN is 192.168.0.1, and the gateway MAC address that HostA learned is 0000-5e00-0105. From the above information, we can know
- A. The vrid of the backup group is 4
- B. The backup group uses virtual MAC mode
- C. The backup group vrid is 5
- D. The backup group uses real MAC mode
Answer: B,C
NEW QUESTION 110
The customer's LAN switch SWA dual-uplink connection switch SWB and switch SWC, through SmartLink to ensure the reliability of the link can be learned from the above information ___
- A. In the case of the same port configuration, you can select the SWASTP member port as the Smart Link port
- B. In the case of the same port configuration, you can select the SWA aggregation member port as the SmartLink port
- C. None of the above answers are correct
- D. In the case of the same port configuration, SWARRPP member ports can be selected as Smart Link ports
Answer: C
NEW QUESTION 111
In the switching network as shown in the figure, VLAN10 is set as Isolate-user-vlan on the switch SWA, VLAN2 and VLAN3 are the Secondary VLAN of VLAN 10; VLAN2? VLAN20 is created on the switch SWB, and VLAN20 is set as Isolate-user-vlan , VLAN4 is the Secondary VLAN of VLAN20. After setting the IP address of each device, check the MAC address table on SWA, it will show that the PCB belongs to (choose one or more)
- A. VLAN 1
- B. VLAN4
- C. VLAN2
- D. VLAN 10
- E. VLAN20
- F. VLAN3
Answer: D,F
NEW QUESTION 112
By viewing PIM routing table entries, you can learn about the following:
- A. Upstream neighbor of (S, G) or (*:G) entry
- B. (S, G) or (*, G) entry interface
- C. (S, G) or (*, G) downstream interface of the entry
- D. (S, G) or (*: G) table entry aging time
Answer: A,B,C,D
NEW QUESTION 113
Which of the following descriptions about H3C switch static routing is correct (choose one or more)
- A. Layer 2 switches do not support routing and forwarding, so Layer 2 switches cannot be configured with static routes
- B. Only Layer 3 switches can configure static routing
- C. Layer 2 switches can be configured with static routes
- D. When the switch configures a static route, you can directly specify the outgoing interface without specifying the next hop
Answer: C
NEW QUESTION 114
Regarding the STP port status, the following statements are correct
- A. No matter what role the port finally determines, the time spent in the Listening state and the Learning state is a ForwardDelay duration
- B. When the port is in the Learning state, it starts to learn the MAC address, but does not forward data
- C. When the port is in the Listening state, it will receive configuration BPDUs and perform calculations, but not send configuration BPDUs
- D. When the port is in Listening state and Learning state, if the port role is changed to Alternate port, the port state will directly change to Blocking
Answer: B,D
NEW QUESTION 115
In the network connection shown in the figure, SWA and SWB are Layer 3 switches, running STP+VRRP, and after the initial configuration is completed, SWA is the root of STP and Master of VRRP, and SWC is the Layer 2 switch connected to the access terminal , The following description about network link failure is correct
- A. After the link between SWA and SWC is interrupted, the VRRP Master will remain unchanged, but the SWC downstream terminal will not communicate with the gateway.
- B. When the link between SWA and SWB is interrupted, the topology of STP will change, and both upstream ports of SWC will become Forwarding
- C. When the link between SWA and SWB is interrupted, the VRRP Master will switch, and SWB will become the new VRRP Master
- D. When the link between SWA and SWC is interrupted, the topology of STP will change, and G1/0/2 of SWC will become Forwarding
Answer: B
NEW QUESTION 116
Regarding the spanning tree port overhead configuration of H3C switches, the following statements are correct:
- A. The default spanning tree port cost standard for H3C switches is legacy
- B. If switches of different manufacturers are interconnected, each switch should be configured to follow the same port cost standard as much as possible, otherwise it may cause the spanning tree calculation result to deviate from the original intention of the network design
- C. By default, the larger the port cost, the smaller the port bandwidth
- D. H3C switches support three port cost standards, dot1d-1998, dot11, and legacy. The port cost standards to be followed can be switched through the command stp pathcost-standard
Answer: A,B,C,D
NEW QUESTION 117
SOA-based network architecture divides the enterprise IT system into which of the following levels-(choose one or more)
- A. Network layer
- B. Session layer
- C. Application layer
- D. Infrastructure layer
Answer: C,D
NEW QUESTION 118
Regarding the comparison between MSTP and RSTP, the correct statement is
- A. MSTP inherits all the fast in RSTP
- B. MSTP can achieve load sharing between VLANs
- C. MSTP and RSTP use the same BPDU format
- D. The port status and roles in MSTP and RSTP are exactly the same
Answer: A,B
NEW QUESTION 119
The figure shows the networking application of RRPP. Customer LAN switches SWA, SWB, SWC, and SWD form RRPP ring main ring 1, switches SWB, SWC and SWE form sub-ring 2, and switches SWB, sWC and sWF form sub-ring 3. If Switch SWE is the master node of sub-ring 2, SWF is the master node of sub-ring 3, and switch SWB is the edge node of sub-ring 2 and sub-ring 3. In order to eliminate the defect of broadcast storm under specific conditions of RRPP dual-homing networking, the above information Can know
- A. If the link between the switch SWA and the switch SWB is Down, and the link between the switch SWB and SWC is Down, the edge port on the switch SWB will be blocked
- B. If the link between the switch SWB and the switch SWC is Down, the edge port on the switch SWB will be blocked
- C. If the link between switch SWA and switch SWB is Down, and the link between switch SWA and switch SWD is Down, the edge port on switch SWB will be blocked
- D. If the link between the switch SWA and the switch SWD is Down, the edge port on the switch SWB will be blocked
Answer: A
NEW QUESTION 120
Regarding the comparison of unicast, multicast and broadcast, there are correct
- A. Compared with unicast, multicast can reduce the burden of the source
- B. Compared with broadcast, multicast can reduce the burden of the source
- C. Compared with broadcast, multicast can improve link utilization
- D. Compared with unicast, multicast can reduce link load
Answer: A,C,D
NEW QUESTION 121
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