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NEW QUESTION # 209
The network topology is shown in the figure. STP is enabled on SWA and SWD. which of the following statements about the changes in the status of SWA and SWD ports are correct?
- A. The EO/2 port of SWD changes its port role in the Learning state, from a designated port to an Alternate port.
- B. If the bridge priority of SWD is changed to 0, port EO/2 of SWA will directly enter the Blocking state without the need for the Forward Delay.
- C. The port role of SWD's EO/1 port changes in the Listening state from a designated port to a root port.
- D. Both SWA's EO/1 and SWD's EO/1 need to go through the ForwardDelay delay of the Listening and Learning states to enter the Forwarding state.
Answer: B,C,D
NEW QUESTION # 210
Which of the following are the advantages of modular network architecture?
- A. Allow different application functions or application systems to share data, resources and capabilities and participate in business processes
- B. Each module can be planned and deployed separately. Network functions can be added or removed by adding or removing modules, which is conducive to building complex networks.
- C. It replaces the traditional hierarchical network model, making it easier to plan and deploy the network.
- D. Allows dynamic invocation of IT resources through open interfaces to achieve a standard, compatible, secure, intelligent and manageable IT application environment
Answer: B
NEW QUESTION # 211
Which southbound standard protocols does VCFC currently support?
- A. RestFulAPI
- B. RIP
- C. SNMP
- D. OpenFlow
Answer: D
NEW QUESTION # 212
The figure shows the networking application of RRPP. The switches SWA, SWB, SWC, and SWD in the customer LAN form the main ring 1 of the RRPP ring. The switches SWB, SWC, and SWE form the sub-ring 2. The switches SWB, SWC, and sWF form the sub-ring 3. If the switch SWE is the master node of the sub-ring 2 and SWF is the master node of the sub-ring 3, What can we learn from the above information?
- A. It is not possible to add sub-ring 2 and sub-ring 3 to the same ring group.
- B. If sub-ring 2 and sub-ring 3 are added to the same ring group, the ring groups should be configured on the switches SWB, SWC, SWE, and SWF respectively and the configurations should be consistent.
- C. If sub-ring 2 and sub-ring 3 are added to the same ring group, the primary ring links corresponding to the edge nodes and auxiliary edge nodes of sub-ring 2 and sub-ring 3 in the ring group should be consistent.
- D. If sub-ring 2 and sub-ring 3 are added to the same ring group, the edge nodes and auxiliary edge nodes of sub-ring 2 and sub-ring 3 in the ring group can be different
Answer: C
NEW QUESTION # 213
Switch SWA uses the factory default configuration. Now configure the Ethernet 1/0/1 port of switch SWA as a Trunk port, with PVID of VLAN 20 and allowing VLAN 10.
which of the following is correct? (Multiple choice)
- A. [SWA] vlan10
[SWA-vlan10] quit
[SWA] vian 20
[SWA-vlan20] quit
[SWA] interface Ethernet 1/0/1
[SWA-Ethernet1/0/1] port link-type trunk
[SWA-Ethernet1/0/1] port trunk pvid vlan 20
[SWA-Ethernet1/0/1] port trunk permit vlan 10 - B. [SWA] vlan10
[SWA-vlan10] quit
[SWA] vlan 20
[SWA-vlan20] port Ethernet 1/0/1
[SWA-vlan20] quit
[SWA ] interface Ethernet 1/0/1
[SWA-Ethernet1/0/1] port link-type trunk
[SWA-Ethernet1/0/1] port trunk permit vlan 10 - C. [SWA] interfaceEthernet 1/0/1
[SWA-Ethernet1/0/1] port link-type trunk
[SWA-Ethernet1/0/1] port trunk pvid vlan 20
[SWA-Ethernet1/0/1] port trunk permit vlan 10
[SWA-Ethernet1/0/1] quit
[SWA] vlan 10
[SWA-vlan10] quit
[SWA] vlan 20 - D. [SWA] vlan10
[SWA-vlan10] quit
[SWA] vlan 20
[SWA-vlan20] quit
[SWA] interface Ethernet 1/0/1
[SWA-Ethernet1/0/1] port access vlan 20
[SWA-Ethernet1/0/1] port link-type trunk
[SWA-Ethernet1/0/1] port trunk permit vlan 10
Answer: A,C
NEW QUESTION # 214
The configuration command to enable the global GVRP function on the H3C series switch is ()
Answer:
Explanation:
GVRP
NEW QUESTION # 215
Regarding the multicast distribution tree model SPT, which of the following statement is correct?
(Multiple choice)
- A. Different multicast sources use themselves as roots and independently establish SPTs
- B. Each router on the SPT maintains the (*, G) entry
- C. Each router on the SPT maintains the (S, G) table entry
- D. In the SPT model, the path from the multicast source to any receiver is optimal.
Answer: A,C,D
NEW QUESTION # 216
Which of the following statements about the STP protocol is correct? (Multiple choice)
- A. When an active link fails, STP can activate the redundant link to restore network connectivity.
- B. STP is used to eliminate data link layer loops in LANs
- C. STP is used to build the shortest path between two nodes in a local area network
- D. STP is mainly used in token ring networks
Answer: A,B
NEW QUESTION # 217
NTP uses a hierarchical approach to define clock accuracy. Which of the following descriptions of clock hierarchies are correct? (Multiple choice)
- A. The larger the number of clock layers, the higher the accuracy
- B. When the clock stratum is 16, it means the clock is not synchronized.
- C. Usually the clock stratum of an atomic clock is 0
- D. The smaller the clock layer number, the higher the accuracy
Answer: B,D
NEW QUESTION # 218
As the basis for SNMP protocol implementation, MIB must be stored and accessed with correct rules.
Which of the following descriptions about storage and access to MIB is incorrect? (Multiple choice)
- A. The network management workstation can only access objects stored in the MIB on the managed device.
- B. The network management workstation can only access objects stored in the MIB on the network management workstation.
- C. MIB is a collection of managed objects and is stored on managed devices
- D. MIB is a collection of managed objects and is stored on the network management workstation
- E. MIB is stored in SM tree structure
Answer: B,D,E
NEW QUESTION # 219
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
what can we learn from the above information? (Multiple choice)
- A. Port Ethernet1/0/1 is a Trunk port that only allows data frames from VLAN 10 to pass through.
- B. The data frame with VLAN10 tag will not be stripped when it reaches Ethernet1/0/1
- C. When a data frame without a VLAN tag enters port Ethernet1/0/1, it will be tagged with VLAN10.
- D. Data frames with VLAN1 tags will not be discarded when they enter Ethernet1/0/1
Answer: C,D
NEW QUESTION # 220
Regarding PIM protocol configuration, which of the following is correct? (Multiple choice)
- A. PIM protocol is configured in VLAN view
- B. PIM-SM configuration includes enabling PIM-SM, RP-related configuration, and C-BSR-related configuration. If you need to designate a device as a DR device on a shared network segment, you also need to configure the priority option of the Hello message.
- C. To configure PIM-DM, you only need to enable PIM-DM on the interface.
- D. PIM protocol is configured in VLAN interface view
Answer: B,D
NEW QUESTION # 221
The customer's LAN switch SWA has dual uplink connections to switches SWB and SWC, and Smart Link is used to ensure link reliability. What can we learn from the above information?
- A. If the configuration of each port is consistent, you can select the SWA RRPP member port as the Smart Link port
- B. If the configuration of each port is consistent, you can select the SWA aggregation member port as the Smart Link port.
- C. If the configuration of each port is consistent, you can select the SWA STP member port as the Smart Link port
- D. None of the above answers are correct
Answer: D
NEW QUESTION # 222
Which of the following are organizations or projects related to SDN? (Multiple choice)
- A. OpenDaylight
- B. SDN Industry Alliance
- C. Open Networking Fundation
- D. Ethane Project
Answer: A,B,C
NEW QUESTION # 223
In the switching network shown in the figure, VLAN10 is set as Isolate-user-vlan on switch SWA, VLAN2 and VLAN3 are set as Secondary VLAN of VLAN 10; VLAN2 and VLAN20 are created on switch SWB, and VLAN20 is set as Isolate-user-vlan, and VLAN4 is set as Secondary VLAN of VLAN20. After setting the IP addresses of each device as shown in the figure, which of the following statement is correct?
- A. SWB's message does not carry VLAN after it comes out of SWA's GigabitEthernet1/0/3 from GigabitEthem1/0/1 port
- B. PCA's message enters from SWA's GigabitEthe1/0/1 port and comes out from GigabitEthem1/0/3 port with the VLAN tag VLAN10.
- C. PCA's message comes out of SWA's GigabitEthem1/0/3 port and enters SWB's GigabitEthem1/0/4 port without a VLAN Tag.
- D. When SWB accesses PCA, the VLAN tag of the message coming out of SWB's GigabitEthem1/0/4 port is VLAN20.
Answer: A
NEW QUESTION # 224
In the switching network shown in the figure, VLAN10 is set as lsolate-user-vlan on switch SWA, VLAN2 and VLAN3 are set as the secondary VLAN of VLAN 10; VLAN2 and VLAN20 are created on switch SWB, and VLAN20 is set as lsolate-user-vlan, and VLAN4 is set as the secondary VLAN of VLAN20. After setting the IP addresses of each device, check the MAC address table on SWA, and it will be displayed that PCB belongs to? (Multiple choice)
- A. VLAN 2
- B. VLAN 10
- C. VLAN 4
- D. VLAN 3
- E. VLAN 20
- F. VLAN 1
Answer: B,D
NEW QUESTION # 225
Regarding RP and BSR, which of the following is correct? (Multiple choice)
- A. RP in PIM-SM can be manually specified or dynamically elected.
- B. BSR is responsible for collecting and publishing RP information in the PIM-SM domain
- C. BSR selects the best RP for each multicast group
- D. There can be only one BSR in a PIM-SM domain
Answer: A,B,D
NEW QUESTION # 226
Regarding the designated port fast switching mechanism in RSTP, which of the following is correct?
(Multiple choice)
- A. After the designated port receives the RST BPDU with the Proposal bit set and declares itself as the follower port, it will send the RSTBPDU with the Agreement bit set.
- B. When the designated port in RSTP is in the Discarding state, it will send the RSTBPDU with the Proposal bit set
- C. The fast switch mechanism of the designated port must be on a point-to-point link
- D. The purpose of the synchronization process is to eliminate the possibility of loops locally on the bridge. All designated ports need to be blocked during the synchronization process.
Answer: A,B,C
NEW QUESTION # 227
In the switching network shown in the figure, VLAN 10 is set as the Super VLAN on the switch SWA, and VLAN 2 and VLAN 3 are sub VLANs of VLAN 10. VLAN, port Ethernet1/0/3 is a Trunk port, PVID is VLAN1, and all VLANs are allowed to pass; VLAN2 and VLAN20 are created on switch SWB, port Ethernet1/0/4 is a Trunk port, PVID is VLAN1, and all VLANs are allowed to pass. After setting the IP addresses of each device as shown in the figure, it can be determined that which of the following statement is correct?
- A. The PCA message enters from the Ethernet 1/0/1 port of SWA and comes out from the Ethernet 1/0/3 port with the VLAN Tag of VLAN 10.
- B. PCA's message enters from SWA's Ethernet1/0/1 port and exits from Ethernet1/0/3 port without a tag
- C. PCA's message enters from SWA's Ethernet1/0/1 port and exits from Ethernet1/0/3 port with VLAN Tag VLAN 1
- D. The PCA message enters from the Ethernet1/0/1 port of SWA and comes out from the Ethernet1/0/3 port with the VLAN Tag of VLAN2
Answer: D
NEW QUESTION # 228
To query the CPU utilization of a device through SNMP, which of the following information should the network management application know before executing the query action? (Multiple choice)
- A. Device CPU utilization OID
- B. Instance ID of device CPU utilization
- C. Management IP address of the device
- D. SNMP community attributes of the device
Answer: A,B,C,D
NEW QUESTION # 229
In the PIM-DM network shown in the figure, some unicast routing tables of routers RT1 and RT2 are as follows:
<RT1>display ip routing-table Routing Tables: Public
Destination/MaskProtoPreCost NextHop Interface 1.1.0.0/16xxxxP1-1 C1-1 10.1.1.1Port1
1.1.1.0/24xxxxP1-2 C1-2 10.1.1.1Port1
<RT2>display ip routing-tableRouting Tables: Public
Destination/MaskProtoPreCost NextHop Interface 1.1.1.0/24XXXX P2-1 C2-1 11.1.1.1Port2
1.1.1.1/32XXXX P2-2 C2-2 11.1.1.1Port2
Then, when routers RT1 and RT2 perform Assert, the winner should be? (Multiple choice)
- A. If P1-2>P2-2, C1-1<C2-2, then RT2 wins.
- B. If P1-2=P2-2, C1-2<C2-2, then RT2 wins.
- C. If P1-1=P2-2, C1-1<C2-2, then RT1 wins.
- D. If P1-2=P2-2, C1-2=C2-2, then RT2 wins.
- E. If P1-1=P2-2, C1-1=C2-2, then RT1 wins.
- F. If P1-1>P2-2, C1-1<C2-2, then RT1 wins.
Answer: A,D
NEW QUESTION # 230
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