質問 1: In the network shown in the figure, the PIMSM protocol is running between RT1, RT2 and RT3, the RP is 1.1.1.1, there is a receiver connected to RT3, and the IGMP multicast source 2.2.2.2 is enabled on the corresponding interface and connected to RT2. The unicast routing table is checked on RT3 as follows:
[RT3] display ip routing-table Routing Tables: Public Destinations: 11 Routes:
12Destination/MaskProtoPreCost NextHop Interface
/1.1.1.1/320SPF 10 1562 192.168.0.1 S0/2/0
0.2 S0/2/0|192.168.0.2/32 Direct 00127.0.0.1 InLoopo/192.168.0.0/300 SPF 10 3124 192.168.2.1 so/2/1/127.0.0.0/8 Direct 00127.0.0.1 InLoopo/127.0.0.1/32 Direct 00127.0.0.1 InLoopo/192.168.0.0/30 Direct 00192.168.0.2 S0/2/0|192.168.0.2/32 Direct 00127.0.0.1 InLoopo/192.168.0.0/30 3124
192.168.0.1 S0/2/0
/192.168.2.0/30 Direct 00192.168.2.2 so/2/1/192.168.2.1/32 Direct 00192.168.2.1 so/2/1[192.168.2.2/32 Direct 00127.0.0.1 InLoop Then, when the receiver sends a group join request, which of the following routers have (*, G) entries?
(Multiple choice)
A. RT2
B. RT1
C. RT3
正解:B
質問 2: Regarding multicast maintenance commands, which of the following is correct? (Multiple choice)
A. The multicast forwarding table is directly used to guide the forwarding of multicast data. By viewing this table, you can understand the forwarding status of multicast data.
B. By viewing the PIM routing table, you can learn about the (S, G) or (*, G) table entries.
C. The multicast routing table is the basis for multicast data forwarding. By viewing the table, you can understand the establishment of (S, G) entries, etc.
D. By viewing the IGMP group information, you can learn about the relevant information of a multicast group maintained by the interface.
正解:A,B,C,D
質問 3: In the network shown in the figure, the PIMSM protocol runs between RT1, RT2 and RT3, the RP is
1.1.1.1, there is a receiver connected to RT3, and the IGMP multicast source 2.2.2.2 is enabled on the corresponding interface and connected to RT2. The unicast routing table on RT3 is as follows:
[RT3] display ip routing-table Routing Tables: Public Destinations: 11 Routes:
12Destination/MaskProtoPreCost NextHop Interface
/1.1.1.1/320SPF 10 1562192.168.2.1 so/2/1
0.0.1 S0/2/0/192.168.0.2/32 Direct 00127.0.0.1 InLoopo/192.168.1.0/300 SPF 10 3124 192.168.2.1 so/2/1/127.0.0.0/8 Direct 00127.0.0.1 InLoopo/127.0.0.1/32 Direct 00127.0.0.1 InLoopo/192.168.0.0/30 Direct 00192.168.0.2 S0/2/0|192.168.0.1/32 Direct 00192.168.0.1 S0/2/0/192.168.0.2/32 Direct
00127.0.0.1 InLoopo/192.168.1.0/300 SPF 10 3124 192.168.2.1 so/2/1 OSPF 10 3124 192.168.0.1 S0/2/0
|192.168.2.0/30 Direct 00192.168.2.2 so/2/1/192.168.2.1/32 Direct 00192.168.2.1 so/2/1[192.168.2.2/32 Direct 00127.0.0.1 InLoop Then, when the receiver sends a group join request, which of the following routers have (*, G) entries?
(Multiple choice)
A. RT2
B. RT1
C. RT3
正解:A,B,C
質問 4: In the network shown in the figure, the interconnection lines between RT1, RT2, RT3, RT4 and RT5 are all Gigabit Ethernet lines, running OSPF, and routing interconnection after publishing the corresponding network segments. The routers all run the PIM SM protocol, and the RP is connected to the receiver on RT4, and IGMP is enabled on the corresponding interface. When the multicast meteor initially forwarded along the RPT meets the conditions for switching to the SPT, which of the following routers will receive the (S, G) join message? (Multiple choice)
A. RT2
B. RT1
C. RT4
D. RT3
E. RT5
正解:A,D
質問 5: The following command is configured on a network device: [sys name-radius-name] security-policy- server 10.1.1.1 which of the following is correct? (Multiple choice)
A. The IP address specified in this command can be the address of the RADIUS server.
B. The IP address specified in this command cannot be the same as the address of the RADIUS server.
C. IP address 10.1.1.1 is the IP address of the security policy server
D. The purpose of this command is to cooperate with the EAD solution to achieve safety linkage control
正解:A,C,D
質問 6: Which of the following statements about the BPDU format of MSTP is correct? (Multiple choice)
A. MSTI configuration messages are used for spanning tree calculation in MSTI
B. The MST configuration ID field is used to determine whether the switches belong to the same MST region.
C. The number of MSTI configuration messages is determined by the number of VLANs
D. The calculation of IST only requires the value in the MST exclusive field
正解:A,B
質問 7: Which of the following descriptions of the switch MAC address table learning process is correct?
(Multiple choice)
A. The PC will actively send MAC address messages to the switch regularly
B. The switch regularly sends MAC address detection messages to the PC
C. When a PC in the network sends a data frame, the switch records the source MAC address
D. When the switch receives an ARP reply message from a PC, it records the source MAC address.
正解:C,D
質問 8: The customer LAN switches SWA, SWB, and SWC form the RRPP ring main ring 1. What can we learn from the above information?
A. If switch SWB is a transmission node and is in the Preforwarding state, it will not receive the Common-Flush-FDB message from the master node within the specified time, and will automatically release the temporarily blocked port.
B. If switch SWB is a transmission node and is in the Preforwarding state, it will automatically release the temporarily blocked port if it fails to receive the Complete-Flush-FDB message from the master node within the specified time.
C. If the switch SWA is the master node, it sends a Common-Flush-FDB message in the Failed state to notify all transmission nodes to refresh the FDB
正解:C
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H3CSE-RS-SW 認定 GB0-372-ENU 試験問題:
1. Which of the following statements about the principle of SmartLink & Monitor Link is correct?
A) MonitorLink sends Flush messages to notify other devices to refresh the MAC address forwarding table and ARP table entries.
B) SmartLink sends Flush messages to notify other devices to refresh MAC address forwarding entries and ARP entries.
C) SmartLink is a port linkage solution that monitors the device uplink. The Up/Down status change of the uplink triggers the Up/Down change of the downlink.
D) MonitorLink implements redundant backup of the primary and backup links, and enables traffic to be quickly switched to the backup link when the primary link fails.
2. What difficulties does the Internet industry face? (Multiple choice)
A) Complex system
B) Unstable network
C) Unhealthy industrial ecology
D) Long innovation cycle
3. As the basis for the implementation of the SNMP protocol, the managed objects in the MIB can be identified by object name or OID. Which of the following descriptions of the managed objects are correct? (Multiple choice)
A) The managed object exists in the form of a node, which can be represented by either object name or OID, and the two are mapped one to one.
B) The nodes in MIB are divided into leaf nodes and non-leaf nodes. Non-leaf nodes cannot be accessed.
C) Scalar nodes only have read attributes, not write attributes
D) Leaf nodes are divided into table nodes and scalar nodes. When the network management workstation accesses a leaf node, it must add the instance ID after the corresponding OID of the leaf node.
4. When a switch running MSTP and a switch running RSTP work together, which of the following is correct? (Multiple choice)
A) The MSTP switch will regard the RSTP switch as an MSTP domain consisting of a single switch.
B) The MSTP switch will parse the RSTBPDU into an MST BPDU, where IRPC is 0
C) The RSTP switch will treat the MST region as a logical switch, and the bridge ID is the ID of the switch in the MST region that is actually connected to the RSTP switch.
D) MSTP switches and RSTP switches can belong to the same MST region
5. In the switching network shown in the figure , VLAN 10 is set as Isolate-user-vlan on switch SWA , and VLAN 2 and VLAN 3 are Secondary VLANs of VLAN 10 ; VLAN 4 and VLAN 20 are created on switch SWB , and VLAN 20 is set as Isolate-user-vlan, and VLAN 4 is Secondary VLAN of VLAN 20.
After setting the IP addresses of each device as shown in the figure , check the MAC address table on SWB , and you can determine that SWA belongs to which of the following?

A) VLAN 10
B) VLAN 4
C) VLAN 3
D) VLAN 1
E) VLAN 2
F) VLAN 20
質問と回答:
質問 # 1 正解: B | 質問 # 2 正解: A、C、D | 質問 # 3 正解: A、D | 質問 # 4 正解: A、B | 質問 # 5 正解: F |