Best Way To Study For H3C GB0-371-ENU Exam Brilliant GB0-371-ENU Exam Questions PDF
Updated Verified Pass GB0-371-ENU Exam - Real Questions & Answers
NEW QUESTION 40
Regarding the description of Isolate-user-vlan technology and Super VLAN technology, the following is correct
- A. SuperVLAN is a three-layer VLAN technology, so all switches that support Super VLAN technology are three-layer switches
- B. Isolate-user-vlan is a Layer 2 VLAN technology, so switches that support isolate-user-vlan technology are Layer 2 switches
- C. SuperVLAN technology is also called VLAN aggregation: the main purpose is to solve the waste of IP addresses or insufficient number of VLAN interfaces
Answer: A,C
NEW QUESTION 41
In the PIM-DM networking, regarding the process of SPT formation (without considering the state refresh mechanism), the correct description is:
- A. After the process of flooding and pruning, an SPT between the multicast source and the multicast receiver is formed
- B. The diffusion-pruning process is carried out periodically
- C. As long as the network topology and unicast routing information remain unchanged, the formed SPT tree will not change
- D. The pruned interface no longer sends multicast packets downstream
Answer: A,B
NEW QUESTION 42
Two routers are connected together 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
vrrp vrid 1 priority 120
vrrp vrid 1 preempt-mode
vrrp vrid 1 track interface serial0/1 reduced 30
[RTB-GigabitEthernet1/0]display this
ip address 192.168.0.253 255.255.255.0
vrrp vrid 1 virtual-ip 192.168.0.254
vrrp vrid 1 preempt-mode
If a DoWN/UP event occurred on the RTA serial port Serial0/1 during network operation, you can know
- A. During the RTA serial port Serial0/1 DOWN/UP time period, the router that responds to the LAN PC ARP request changes once
- B. During the RTA serial port Serial0/1 DOWN/UP time period, the router that responds to the LAN PC ARP request will not change
- C. During the RTA serial port Serial0/1 DOWN/UP time period, the router that responds to the LAN PC ARP request changes 3 times
- D. During the RTA serial port Serial0/1 DOWN/UP time period, the router that responds to the LAN PC ARP request changes twice
Answer: D
NEW QUESTION 43
Which of the following statements about SNMP v3 architecture is correct is _____.
- A. An SNMP entity may be both SNMP Manager and SNMP Agent
- B. SNMP Manager either has a command generator or an instruction receiver
- C. SNMP engine includes scheduler, message processing subsystem, security subsystem and access control subsystem
- D. SNMP application includes command generator, command responder, instruction generator, proxy forwarder, etc.
Answer: A,C,D
NEW QUESTION 44
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?
- A. RT1
- B. RT2
- C. RT3
- D. RT4
- E. RT5
Answer: B,C
NEW QUESTION 45
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 SWD is Down, the edge port on the switch SWB will be blocked
- B. 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
- C. If the link between the switch SWB and the switch SWC is Down, the edge port on the switch SWB will be blocked
- D. 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
Answer: B
NEW QUESTION 46
The following statements about multicast routing protocols are correct:
- A. In dense mode, the multicast data stream is flooded from the multicast source to every corner of the network by pushing, and the multicast receiver passively receives multicast packets
- B. In sparse mode, the multicast data stream is sent from the multicast source to the multicast receiver in a pull mode, and the multicast receiver actively sends and receives requests
- C. Intra-domain multicast routing protocols include: MSDP, DVMRP, MOSPF, PIM
- D. The multicast routing protocol has two modes: dense and sparse
Answer: A,B,D
NEW QUESTION 47
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.
- A. STP detects the existence of a loop between G1/0/2 or G1/0/3 of SWB and blocks one of them
- B. G1/0/1 of SWA may be blocked by STP detecting the existence of a loop
- C. Between G1/0/2 and G1/0/3 of SWB, loopback-detection detects the existence of a loop and blocks one of them
Answer: A
NEW QUESTION 48
Among the following PIMV2 messages, the destination address is a unicast address:
- A. Join
- B. Graft
- C. Prune
- D. Hello
- E. Register
- F. Assert
Answer: B,E
NEW QUESTION 49
The following statements about RPT and SPT in PIMSM are correct:
- A. When the device switches from RPT to SPT, it sends a join message to the multicast source
- B. Compared with RPT, SPT makes multicast packets reach the receiver through the optimal path, which improves the efficiency of packet forwarding
- C. When multicast traffic is forwarded along the RPT, devices along the way have established (S, G) entries corresponding to the multicast source
- D. During the process of switching from RPT to SPT, the RP may receive two copies of multicast traffic arriving in the two directions of RPT and SPT. At this time, the RP will send a prune message upstream
Answer: A,B
NEW QUESTION 50
The two switches SWA and SWB are connected together by four Ethernet cables. The corresponding interface on the switch SVVA has the following configuration:
[SWA-Ethernet1/0/1]display this
duplex full
speed 10
[SWA-Ethernet1/0/2]display this
duplex full
speed 10
[SWA-Ethernet1/0/3]display this
duplex half
speed 100
[SWA-Ethernet1/0/4]display this
duplex half
speed 100
It can be known from the above information
- A. Four Ethernet ports join the same aggregation group through static aggregation, and the selected ports are Ethernet1/0/1 and Ethernet1/0/3
- B. Four Ethernet ports join the same aggregation group through static aggregation, and the selected ports are Ethernet1/0/1 and Ethernet1/0/2
- C. Four Ethernet ports join the same aggregation group through static aggregation, and the selected ports are Ethernet1/0/3 and Ethernet1/0/4
- D. Four Ethernet ports join the same aggregation group through static aggregation, and the selected ports are all four ports
Answer: B
NEW QUESTION 51
In the PIM-DM network as shown in the figure, part of the unicast routing table of routers RT1 and RT2 is as follows
<RT1>display ip routing-table
Routing Tables: Public
Destination/MaskProtoPreCost NextHop Interface
10.1.1.0/30 Direct 0010.1.1.2Port1
10.1.1.1/32 Direct 0010.1.1.1Port1
10.1.1.2/32 Direct 00127.0.0.1 InLoopO
11.1.1.0/30 Direct 0011.1.1.1Port2
11.1.1.1/32 Direct 00127.0.0.1 InLoopO
12.1.1.0/30 Direct 0012.1.1.1Port3
12.1.1.1/32 Direct 00127.0.0.1 InLoopO
100.1.1.0/240SPF 10 1563 10.1.1.1 Portl
127.0.0.0/8 Direct 00127.0.0.1 InLoopO
127.0.0.1/32Direct 00127.0.0.1 InLoopO
100.1.0.0/160SPF 10 311.1.1.2 Port2
<RT2>display ip routing-table
Routing Tables: Public
Destination/MaskProtoPreCost NextHop Interface
20.1.1.0/30 Direct 0020.1.1.2Port1
20.1.1.1/32 Direct 0020.1.1.1 Portl
20.1.1.2/32 Direct 00127.0.0.1 InLoopO
11.1.1.0/30 Direct 0011.1.1.2Port2
11.1.1.2/32 Direct 00127.0.0.1 InLoopO
22.1.1.0/30 Direct 0022.1.1.1Port3
22.1.1.1/32 Direct 00127.0.0.1 InLoopO
100.1.1.0/240SPF 10 1564 11.1.1.1 Port2
127.0.0.0/8 Direct 00127.0.0.1 InLoopO
127.0.0.1/32Direct 00127.0.0.1 InLoopO
100.1.0.0/160SPF 10 220.1.1.1 Portl
Then, the (S, G) entry and exit interface lists of routers RT1 and RT2 are respectively
- A. RT2 outgoing interface list: Port2, Port3
- B. RT1 incoming interface list: Portl
- C. RT1 outgoing interface list: Port2, Port3
- D. RT2 incoming interface list: Portl
Answer: B,C
NEW QUESTION 52
The following statements about PIMSSM are correct
- A. To be compatible with the earlier version of IGMP, the receiver in PIMSSM also uses IGMP V2 to send join messages
- B. PIMSSM can be simply viewed as similar to PIMSM. After the host sends a join message, the device sends a (*, G) join message to the multicast source
- C. Compared with PIMSM, PIMSSM does not require RP, which improves message forwarding efficiency
- D. The multicast packet reaches the receiver along the SPT between the multicast source and the receiver
Answer: C,D
NEW QUESTION 53
Regarding the basic concepts of MSTP, the correct statement is
- A. One MST region can contain multiple MSTI instances, and different MST regions can contain different MSTI instances
- B. IST is a fragment of CIST in the MST region, and the root of IST is the bridge with the highest priority in the MST region
- C. One MSTI instance can map multiple VLANs, and the VLAN mapping relationship in different MST regions can be different
- D. The root of IST is the bridge closest to the total root in IST
Answer: A,B,C,D
NEW QUESTION 54
The SSH protocol is widely used as a secure remote login protocol. What is correct about SSH is _______
- A. SSH can also provide a secure transmission channel for FTP
- B. SSH uses TCP port 22 to transmit data and port 23 to establish a connection
- C. SSH and Secure Shell can use DES authentication to ensure data security
- D. SSH uses additional encryption technology to ensure login security
Answer: A,C,D
NEW QUESTION 55
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
- A. Port Ethernet1/0/2 only allows data from VLAN 1 and VLAN 10 to pass through
- B. The only VLANs existing on the switch are VLAN1 and VLAN10
- C. Data frames with VLAN1 tags will not be stripped off when they leave port Ethernet1/0/2
- D. Data frames with VLAN20 tags will be discarded when they enter port Ethernet1/0/2
Answer: B,C,D
NEW QUESTION 56
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