EMT Practice Test

1. Question Content...

---

Question1: The SSH protocol is widely used as a secure remote login protocol. What is correct about SSH is _______

Question2: In the networking model shown in the figure, if Accoing is received on RADIUsClient, the following statement may be correct.

Question3: Regarding the spanning tree port overhead configuration of H3C switches, the following statements are correct:

Question4: The customer LAN switches SWA, SWB, and SWC form the RRPP ring main ring 1. If the switches SWB, SWC and SWD form sub-ring 2, the above information can be derived

Question5: The customer's two switches SWA and SWB are connected by seven Ethernet cables and configured with static link aggregation. The corresponding ports on the switch SWA are Ethernet 1/0, Ethernet 1/0/2, and Ethernet 1/0/3 , Ethernet 1/0/4, Ethernet 1/0/5, Ethernet1/0/6, Ethernet 1/0/7, the configuration method is to configure according to the order of the ports. If the switch SWA, SWB each aggregation group only supports 6 ports ,then

Question6: Regarding the comparison of the calculation convergence of RSTP and STP, the correct statement is

Question7: In the switching network as shown in the figure, VLAN 10 is set as Super VLAN on the switch SWA, VLAN 2 and VLAN 3 are Sub VLANs of VLAN 10, Port Ethernet1/0/3 is Trunk port, PVID is VLAN1, allowing all VLANs to pass ; Create VLAN2~VLAN20 on the switch SWB, port Ethernet1/0/4 as Trunk port, PVID as VLAN1, allowing all VLANs to pass. After setting the IP address of each device as shown in the figure, you can judge (choose one or more item)

Question8: In the switching network as shown in the figure, all three switches have only default VLAN1, the interconnection ports of the three switches are Trunk, and all VLANs are allowed to pass, and the three switches have the global and port GVRP function enabled. VLAN 10 is created on the switch SWA, VLAN 20 is created on the switch SWC, and the GVRP registration mode of the Ethernet1/0/1 port is set to Forbidden on the switch SWA, and the display vlan command is executed on the SWB to view the VLAN existing on VL^SWB Yes (choose one or more)

Question9: The IP address of the host PCA is 40.1.1.1 and the MAC address is 0011.1111.11, which is connected to the GigabitEthernet 1/0/1 port of the switch. The following commands are configured on the switch:
[H3C]vlan 10
[H3C-vlan10]quit
[H3C]vlan 20
[H3C-vlan20]protocol-vlan ipv4
[H3C-vlan20]quit
[H3C]vlan 30
[H3C-vlan30]quit
[H3C]mac-vlan mac-address 0022-2222-2222 vlan 30
[H3C]vlan 40
[H3C-vlan40]ip-subnet-vlan ip 40.1.1.0 255.255.255.0
[H3C-vlan40]quit
[H3C]interface GigabitEthernet 1/0/1
[H3C-GigabitEthernet1/0/1]port link-type hybrid
[H3C-GigabitEthernet1/0/1]port hybrid pvid vlan 10
[H3C-GigabitEthernet1/0/1]port hybrid vlan 10 20 30 40 untagged
[H3C-GigabitEthernet1/0/1]port hybrid protocol-vlan vlan 20 0
[H3C-GigabitEthernet1/0/1]port hybrid ip-subnet-vlan vlan 40
[H3C-GigabitEthernet1 /0/1 ]mac-vlan enable
After the configuration is complete, it can be judged that PCA will join

Question10: As shown in the networking, initially Link 2 is not connected, and STP is not enabled on the switches, and the PCB can send data to PCA. If Link 1 fails at this time, the maintenance staff connects Link 2 to the PCA. The restoration process of the transmission service is correct (assuming that the PCA will not actively send data)

Question11: Regarding the basic concepts of MSTP, the correct statement is

Question12: To configure the Ethernet1/0/1 port of the switch SWA as a hybrid port, its PVID is VLAN20, and when sending VLAN20 data frames without tagging, when sending VLAN 10 data frames, then the following configuration Is the process correct (choose one or more)

Question13: The figure shows the stable topology after STP calculation and convergence, then the following statements are correct:

Question14: Regarding the comparison of the calculation convergence of RSTP and STP, the correct statement is

Question15: To query the CPU utilization of a certain device through SNMP, before executing the query action, which information should be mastered by the network management application

Question16: If customers prefer to use TACACS+ protocol instead of RADUS to complete user access authentication, this may be because

Question17: Regarding the basic concepts of MSTP, the correct statement is

Question18: Which of the following descriptions about H3C switch static routing is correct (choose one or more)

Question19: The security of the campus network should consider which of the following developments

Question20: In the network as shown in the figure, after completing the corresponding configuration on the switch SWA, when the switch SWA receives the data frame from the PCA to access the PCB, it will judge whether to check the MAC address table or the routing table according to it.

Question21: After executing the displayinterface Ethernet 1/0/1 command on the switch SWA, the output information is as follows:
[SWA]display interface Ethernet 1/0/1
Ethernetl/0/1 current state: UP
PVID: 10
Mdi type: auto
Link delay is 0(sec)
Port link-type: trunk
VLAN passing: 1 (default vlan), 10
VLAN permitted: 1 (default vlan), 2-4094
Trunk port encapsulation: IEEE 802.1q
Port priority: 0
It can be judged from the above output

Question22: The following statements about the STP protocol are correct

Question23: Regarding the stpmcheck command in the spanning tree configuration, the correct statement is

Question24: Regarding root bridge protection, the following statements are correct

Question25: The two routers are connected through a LAN to form a VRRP backup group, and the configuration on each interface is as follows:
[RTA-GigabitEthernet1/0]display this
ip address 192.168.0.252 255.255.255.0
vrrp vrid 1 virtual-ip 192.168.0.254
[RTB-GigabitEthernet1/0]display this
ip address 192.168.0.253 255.255.255.0
vrrp vrid 1 virtual-ip 192.168.0.254
It can be known from the above information

Question26: Regarding the configuration of the timer in the spanning tree protocol, the correct statement is

Question27: Which of the following addresses is not an IPv4 multicast address?

Question28: The customer LAN switches SWA, SWB, and SWC form the RRPP ring main ring 1, and the switch SWA has the following configuration information:
[SWA] rrpp domain 1
[SWA-rrpp-domain1] control-vlan 4092
If the switch SWA ports Gigabitethernet 1/0/1 and Gigabitethernet 1/0/2 are connected to the RRPP ring, we can know from the above information

Question29: As shown in the network, the switches all run RSTP. Initially, SWA, SWB and SWC are interconnected. When the topology is stable, connect SWB and SWD, then the following statements are correct.

Question30: As shown in the figure, there are two group member hosts Client1 and 3 running different versions of the IGMP protocol on the shared network segment, and there is also an IGMPV2 router Router, then the following statement is correct

Question31: The topology is shown in the figure, and the STP calculation is performed. The correct result is

Question32: After executing the display interface Ethernet 1/0/2 command on the switch SWA, the output information is as follows:
[SWA]display interface Ethernet 1/0/2
Ethernet1/0/2 current state: UP
PVID: 10
Mdi type: auto
Link delay is 0(sec)
Port link-type: trunk
VLAN passing: 1 (default vlan), 10
VLAN permitted: 1 (default vlan), 2-4094
Trunk port encapsulation: IEEE 802.1q
Port priority: 0
It can be judged from the above output

Question33: As shown in the figure, each switch enables RSTP. Assuming that each link has the same cost value, the following statement is correct

Question34: 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 VLA of VLAN20. After setting the IP address of each device as shown in the figure, you can judge

Question35: When the host receives the GeneralQuery message sent by the IGMPV2 querier, (choose one or more)

Question36: Regarding the MSTP calculation process, the correct statement is

Question37: When the router receives the multicast data, it searches the multicast forwarding table

Question38: The figure shows the networking application of RRPP. The customer LAN switches SWA, SWB, SWC, and SWD form RRPP ring main ring 1, the switches SWB, SWC and SWE form sub-ring 2, and switches SWB, sWC and sWF form sub-ring 3. If The switch SWE is the master node of sub-ring 2, and SWF is the master node of sub-ring 3. It can be learned from the above information

Question39: The three routers RTA, RTB, and RTC are connected together via a LAN to form a VRRP backup group. The interface configuration of each router is as follows:
RTA's GigabitEthernet ip address 192.168.0.252 255.255.255.0 vrrp vrid 1 virtual-ip 192.168.0.254 vrrp vrid 1 priority 120 RTB's GigabitEthernet ip address 192.168.0.253 255.255.255.0 vrrp vrid 1 virtual-ip 192.168.0.254 vrrp vrid 1 priority 90 RTC's GigabitEthernet ip address 192.168.0.254 255.255.255.0 vrrp vrid 1 virtual-ip 192.168.0.254
It can be known from the above information

Question40: In the network as shown in the figure, the switch SWA is a Layer 2 switch, and the router RTA is the gateway of each PC. The following configuration is made on the router RTA:
[RTA]interface Ethernet 0/0
[RTA-Ethernet0/0]ip address 10.10.10.1 255.255.255.0
[RTA-Ethernet0/0]interface ethernet 0/0.2
[RTA-Ethernet0/0.2]ip address 20.20.20.1 255.255.255.0
[RTA-Ethernet0/0.2]vlan-type dotlq vid 2
[RTA-Ethernet0/0.2]interface ethernet 0/0.3
[RTA-Ethernet0/0.3]ip address 30.30.30.1 255.255.255.0
[RTA-Ethernet0/0.3]vlan-type dotlq vid 3
After completing the corresponding configuration on the switch SWA, PCA, PCB and PCC can ping their own gateway. The configuration of the switch SWA port Ethernet1/0/4 should be (choose one or more)

Question41: The customer purchased a router. If the performance index of the router is MTBF>Y14 8 years, and the average maintenance time MTTR<U1, the reliability of the router is

Question42: When configuring MSTP, the configuration steps of area view include

Question43: As shown in the networking, SWB and SWC enable STP, SWC is the root, SWA does not enable STP, initially Link 2 is not connected, PCB can send data to PCA, if Link 1 fails at this time, maintenance personnel will link 2 is connected, the statement about the recovery process of the PCB to PCA data transfer service is correct (assuming that the PCA will not actively send data)

Question44: After executing the display interface Ethernet 1/0/1 command on the switch SWA, the output information is as follows:
[SWA]display interface Ethernet 1/0/1
Ethernetl/0/1 current state: UP
PVID: 10
Mdi type: auto
Link delay is 0(sec)
Port link-type: trunk
VLAN passing: 1 (default vlan), 10
VLAN permitted: 1 (default vlan), 2-4094
Trunk port encapsulation: IEEE 802.1q
Port priority: 0
It can be judged from the above output

Question45: Regarding the relationship between RSTP and STP, the correct statement is

Question46: Regarding the three versions of the multicast group management protocol IGMPv1, IGMPV2, and IGMPv3, which is correct

Question47: Regarding the comparison of RSTP and STP BPDU format, the following statements are correct:

Question48: Which of the following methods of dividing VLANs has the advantage that when the user's physical location moves, that is, when changing from one switch to another, VLAN does not need to be reconfigured-(choose one or more)

Question49: Regarding the generation of TCN BPDUs, which of the following statements are correct

Question50: The following statements about multicast routing protocols are correct:

Question51: The following are functions of the convergence layer (choose one or more)

Question52: In the network as shown in the figure, the interconnection lines between RT1, RT2, RT3, RT4 and RT5 are all Gigabit Ethernet cables, running OSPF, and after publishing the corresponding network segments to achieve routing interoperability, the routers all run the PIM SM protocol. RP is 1.1.1.1 RT4 is connected to the receiver, and IGMP is enabled on the corresponding interface. After the initial multicast traffic forwarded along the RPT is switched to SPT, which of the following routers constitutes SPT

Question53: Which of the following methods does RADIUS use to ensure the correctness of messages exchanged between the RADIUS server and the RADIUS client?

Question54: As shown in the diagram, SWA, SWB and SWC enable STP. If the bridge priority of SWA is set to 61440 after topology convergence, the following statements are correct.

Question55: In the switching network as shown in the figure, all three switches only have the default VLAN 1, the interconnection ports of the three switches are Trunk, and all VLANs are allowed to pass, and the three switches have the global and port GVRP function enabled. VLAN 10 is created on the switch SVVA, VLAN 20 is created on the switch SWC, check the status information of each Trunk port on the three switches, the correct one is displayed below (choose one or more)

Question56: In the switching network shown in the figure, VLAN10 is set as Isolate-user-vlan on the switch SWA, VLAN2 and VLAN3 are set as the Secondary VLAN of VLAN 10; VLAN2? VLAN20 is created on the switch SWB, and VLAN20 is set as Isolate-user-vlan , VLAN4 is VLAN20 Secondary VLA after setting the IP address of each device as shown in the figure, the local proxy ARP function is enabled on both SWA and SWB. At first, the switch and pc did not learn their corresponding ARP entries in PCA. During the process of pinging PCB, PCA will send an ARP request. The source MAC address of the ARP request packet forwarded by the switch to PCB is

Question57: As shown in the networking, the switch enables RSTP, and the following statements about its configuration are correct.

Question58: Which statement about the STP protocol is correct?

Question59: As shown in the networking, SWA and SWC enable STP, SWC is the root, SWB does not enable STP, initially Link 2 is not connected, PCB can send data to PCA, if Link 1 fails at this time, maintenance personnel will link 2 is connected, the statement about the recovery process of the PCB to PCA data transfer service is correct (assuming that the PCA will not actively send data)

Question60: In the network as shown in the figure, the corresponding configuration is completed on the switch SWA, and the switch SWA and each PC have learned the corresponding ARP entry. The PCA visited the PCB and sent an ICMP request message, and the switch SWA forwarded this message to the PCB. When the source IP address of the packet is

Question61: In the network connection as shown in the figure, SWA and SWB enable STP and Loopback-detection at the same time. Please confirm that the port status description of SWA and SWB is correct.

Question62: In a large local area network, what are the functional layers of the network?

Question63: The following statements about BSR and RP in PIMSM are correct:

Question64: Regarding the description of Isolate-user-vlan technology and Super VLAN technology, the following is correct

Question65: As the network management director of a certain company, Mr. Wang adheres to the following network technology and network equipment selection and application principles in network construction. As a network engineer, you think the selection and application of those technologies are not good for network management.

Question66: Regarding the role and status of the STP port, the following statements are correct:

Question67: Regarding RP and BSR, which of the following statements are correct?

Question68: The following statements about the PIM SM joining process are correct.

Question69: The customer LAN switches SWA, SWB, SWC, and SWD form an RRPP ring, the main ring 1. The switch SWD is connected to the switches SWB and SWC, but not to the switch SWA. The switch SWD has the following configuration information:
[SWD]rrpp domain 1
[SWD-rrpp-domain 1 ]ring 1 node-mode transit primary-port gigabitethernet 2/0/1 secondary-port gigabitethernet 2/0/2 level 0
If the switch SWA is the master node of primary ring 1, if the switch SWD port GigabitEthem1/0/ fails, you can know from the above information

Question70: For the following configuration commands:
[H3C] ntp-service refclock-master 127.127.1.1 6
Understanding, which is correct

Question71: In the switching network as shown in the figure, all three switches only have the default VLAN1, the interconnection ports of the three switches are trunks, and all VLANs are allowed to pass, and the three switches have the global and port GVRP functions enabled. VLAN 10 is created on the switch SWA, VLAN 20 is created on the switch SWC, and the GVRP registration mode of the Ethernet1/0/1 port on the switch SWA is set to Fixed, and the VLAN existing on the SWA is executed on the display vlan SWA (select one or Multiple)

Question72: Regarding the configuration BPDU and TCM BPDU, the statements are correct

Question73: As the basis for the realization of the SNMP protocol, the managed objects in the MIB can be identified by the object name or OID. The following descriptions of the managed objects are correct (multiple choice)

Question74: Regarding the designation of the MSTP root bridge, the correct statement is

Question75: The customer LAN switches SWA, SWB, and SWC form the RRPP ring main ring 1, and the switch SWA has the following configuration information:
[SWA] rrpp domain 1
[SWA-rrpp-domain1] control-vlan 4092
If the switches SWB, SWC and SWD form sub-ring 2, the switches SWB, SWC and SWE form sub-ring 3 can be known from the above information

Question76: Regarding priority mapping and priority trust, there are correct statements

Question77: What kind of request operation does SNMP v2c add to the SNMP v1 protocol?

Question78: The Ethemet1/0/1 port configuration of the switch SWA is as follows:
interface Ethernet 1/0/1
port link-type trunk
port trunk permit vlan 10
port trunk pvid vlan 20
Now you need to modify the Ethernet 1/0/1 port of the switch SWA to a Hybrid port, the PVID is VLAN20, and the data frame of VLAN10 is tagged, then the following configuration process is correct (choose one or more)

Question79: Regarding the port status and role in RSTP, what are the correct statements?

Question80: Which of the following descriptions about the IP address of the VLAN interface of the H3C Layer 3 switch is correct?

Question81: In the networking shown in the figure, the PIM SM protocol runs between RT1, RT2 and RT3, the RP is 1.1.1.1, and there is a downstream receiver RT3 connected to a multicast source, check the RT3 unicast routing table as follows:
[RT3]display ip routing-table
Routing Tables: Public
Destinations: 10 Routes: 10
Destination/MaskProtoPreCost NextHop Interface
1.1.1.1/320SPF 10 1562 192.168.0.1 S0/2/0
127.0.0.0/8 Direct 00127.0.0.1 InLoopO
127.0.0.1/32Direct 00127.0.0.1 InLoopO
192.168.0.0/30Direct 00192.168.0.2 S0/2/0
192.168.0.1/32Direct 00192.168.0.1 S0/2/0
192.168.0.2/32Direct 00127.0.0.1 InLoopO
192.168.1.0/300SPF 10 3124 192.168.2.1 so/2/1
192.168.2.0/30Direct 00192.168.2.2 so/2/1
192.168.2.1/32Direct 00192.168.2.1 so/2/1
192.168.2.2/32Direct 00127.0.0.1 InLoopO
Then, after the RP sends the registration stop message, which of the following routers have (S, G) entries?

Question82: In the networking shown in the figure, the interconnection lines between RT1, RT2, RT3, RT4, and RT5 are all gigabit Ethernet cables, running OSPF, and after publishing the corresponding network segments to achieve routing interoperability, the routers all run the PIM SM protocol. RP means that RT4 has a receiver connected and IGMP is enabled on the corresponding interface. When the initial multicast traffic forwarded along the RPT meets the conditions for switching to SPT, which of the following routers will receive the (S, G) join message?

Question83: In the PIM-DM networking, about the router sending Prune (prune) message, the description is correct:

Question84: Which statement is correct about the communication between switch VLANs?

Question85: As shown in the picture, SWA, SWB and SWC enable STP, and the MAC address of SWB is less than the MAC address of SWA. If the topology converges and the bridge priority of SWB is set to 0, the following statements are correct.

Question86: In the PIM-DM network, the diffusion process of multicast packets is as follows

Question87: Regarding the relationship between SuperVLAN and Sub VLAN, the following description is correct

Question88: Regarding the comparison of unicast, multicast and broadcast, there are correct

Question89: As shown in the network topology, if STP is enabled on SWA and SWD, the statement about SWA and SWD port status changes is correct.

Question90: The figure shows the application of SmartLink and RRPP hybrid networking. In this networking environment, the RRPP protocol is enabled on the switch SWA, switch SWB, switch SWC and switch SWD to provide link redundancy backup. From the above information, you can know

Question91: In the networking model shown in the figure, after the configuration is completed, it is found that the user authentication fails, then the possible cause of the failure is

Question92: After executing the display interface Ethernet 1/0/1 command on the switch SWA, the output information is as follows:
[SWA]display interface Ethernet 1/0/1
Ethernet1/0/1 current state: UP
PVID: 10
Mdi type: auto
Link delay is 0(sec)
Port link-type: trunk
VLAN passing: 1 (default vlan), 10
VLAN permitted: 1 (default vlan), 2-4094
Trunk port encapsulation: IEEE 802.1q
Port priority: 0
It can be judged from the above output

Question93: Regarding the comparison between MSTP and RSTP, the correct statement is

Question94: In the switching network as shown in the figure, VLAN 10 is set as Super VLAN on the switch SWA, VLAN 2 and VLAN 3 are Sub VLANs of VLAN 10, Port Ethernet1/0/3 is a Trunk port, PVID is VLAN 1, allowing all VLANs to pass ; Create VLAN2~VLAN20 on the switch SWB, port Ethernet1/0/4 as Trunk port, PVID is VLAN1, allowing all VLANs to pass, after setting the IP address of each device as shown in the figure, the following statement is correct

Question95: What is correct about IGMP Snooping?

Question96: In the network connection as 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 SWC of VRRP is the Layer 2 switch, which is connected to the following terminals. The description about the network link failure is correct

Question97: In the switching network as shown in the figure, all three switches only have the default VLAN1, the interconnection ports of the three switches are trunks, and all VLANs are allowed to pass, and the three switches have the global and port GVRP functions enabled. VLAN 10 is created on the switch SWA, VLAN 20 is created on the switch SWC, and the GVRP registration mode of the Ethernet 1/0/1 port is set to Fixed on the switch SWA, and the display vlan command is executed on the SWB to view the VLAN existing on VLASWB ( Select one or more)

Question98: Which statement is correct about the communication between switch VLANs?

Question99: SNMP vc2 relative to the improvement of SNMPV1 protocol includes

Question100: The host PCA, PCB and PCC are respectively connected to the GigabitEthernet1/0/1 GigabitEthernet1/0/2 and GigabitEthernet1/0/3 ports of the switch SWA belong to VLAN2, VLAN3 and VLAN10, and the host ife addresses are in the same network segment. PCA Both PCC and PCB can access PCC, but PCA and PCB cannot communicate with each other. In the configuration process of SWA, which of the following configurations should be included?

Question101: The two routers are connected through the LAN to form a VRRP backup group. The VRRP timer configuration on each interface is as follows:
[RTA-GigabitEthernet1/0]vrrp vrid 1 timer advertise 5
[RTB-GigabitEthernet1/0]vrrp vrid 1 timer advertise 5
VRRP backup group 1 is operating normally, RTA is the Master and RTB is the Backup. If the router RTA fails after the device runs for a period of time, the time for the router RTB to change from Backup to Master may be

Question102: Regarding the three versions of the multicast group management protocol IGMPv1, IGMPV2, and IGMPv3, which is correct

Question103: Before configuring Layer 3 multicast, the first configuration that needs to be done is

Question104: The customer's six switches SWA, SWB, SWC, SWD, SWE, and SWF are connected together through the LAN to form an RRPP ring. Check the RRPP status on SWB as follows:
<SWB>dis rrpp verbose domain 1
Domain ID: 1
Ring ID: 1
Ring Level: 0
Node Mode: Transit
Ring state:-
Enable Status: YesActive Status: Yes
Primary port: GigabitEthernet2/0/1 Port status: UP
Secondary port: GigabitEthernet2/0/2 Port status: UP
Ring ID: 2
Ring Level: 1
Node Mode: Edge
Ring state:-
Enable Status: YesActive Status: Yes
Common port: GigabitEthernet2/0/1 Port status: UP
GigabitEthernet2/0/2 Port status: UP
Edge port: GigabitEthernet2/0/3 Port status: UP
Ring ID: 3
Ring Level: 1
Node Mode: Edge
Ring state:-
Enable Status: YesActive Status: Yes
Common port: GigabitEthernet2/0/1 Port status: UP
GigabitEthernet2/0/2 Port status: UP
Edge port: GigabitEthernet2/0/4 Port status: UP
Know from the above information

Question105: Mid-to-high-end switch equipment has its own redundancy. If the dual main control board of a core switch in the customer's network is active and standby redundant hot backup, AC power supply 2+1 redundant hot backup, and fan system 1:1 hot backup, Then, among the following operations, which may have a significant impact on the customer network is

Question106: The customer requires that during network design, there must be high-reliability equipment in key parts, and the reliability of the equipment should reach 99.999%.

Question107: The customer requires that during network design, there must be high-reliability equipment in key parts, and the reliability of the equipment should reach 99.999%.

Question108: The customer LAN switches SWA, SWB, and SWC form the RRPP ring main ring 1, and the switch SWB has the following configuration information:
[SWB]rrpp domain 1
[SWB-rrpp-domain1]ring 1 node-mode transit primary-port gigabitethernet 2/0/1 secondary-port gigabitethernet 2/0/2 level 0
If the switch SWA is the master node of primary ring 1, if the switch SWB port GigabitEthem2/0/1 fails, you can know from the above information

Question109: Among the SNMPv1 messages, the messages sent by the Agent to the NMS include:

Question110: Which of the following addresses is not an IPv4 multicast address?

Question111: The topology is shown in the figure, and the STP calculation is performed. The correct result is

Question112: Regarding BPDU protection, the following statements are correct

Question113: What is the correct statement about the MSTP calculation process?

Question114: SOA-based network architecture divides the enterprise IT system into which of the following levels-(choose one or more)

Question115: In order to achieve efficient network management, what servers do we often need to deploy in large campus networks?