[Aug-2023] H3CNE GB0-191-ENU Exam Practice Dumps
2023 GB0-191-ENU Premium Files Test pdf - Free Dumps Collection
NEW QUESTION # 213
The two WAN interfaces S1/0 and S1/1 of the router MSR-1 are connected to the routers MSR-2 and MSR-3 respectively. At the same time, the Ethernet port of MSR-1 is connected to MSR-4, and all four routers run RIP protocol. In the routing table of MSR-1, there is a route R from MSR-2 whose suppression time is activated, then ______. (Multiple choice)
- A. Before the suppression time ends, if MSR-1 receives the update of route R from MSR-3, and its Cost is less than 16, then MSR-1 will release the suppression of route R and update the routing table
- B. The cost value of route R in the routing table of MSR-1 and MSR-2 is set to 16
- C. After the suppression time expires, if MSR-1 receives the update of route R from MSR-4, then MSR-1 will update the information of route R in the routing table
- D. Before the suppression time ends, if MSR-1 receives the update of route R from MSR-2, and its Cost is less than 16, then MSR-1 will release the suppression of route R and update the routing table
Answer: B,C,D
NEW QUESTION # 214
A network connection is shown in the figure.
All interfaces of the four routers are configured with OSPF, and they are all running in OSPF area 23. All network segments can be connected to each other.
The OSPF Cost of the interconnection links between routers is shown in the figure. Then the correct description below is ______. (Multiple choice)
- A. RTD has the same LSDB as RTA
- B. RTC will have two OSPF neighbors
- C. RTC calculates the best path to the 192.168.2.0/24 network segment according to the SPF algorithm as C->A->B
- D. After SPF calculation, the cost value of the path from RTC to 192.168.4.0/24 and to 192.168.2.0/24 is the same, so an equal-cost route will be formed on RTC
Answer: A,C
NEW QUESTION # 215
The MAC address table on a layer 2 switch is shown in the figure.
When the switch receives a frame with a destination MAC address of 00-13-72-8E-4E-C4 from the E1/0/2 interface, the switch will ______ the frame. (Multiple choice)
- A. Send out from the E1/0/1 interface
- B. send out from all interfaces on the switch
- C. send out from E1/0/4 interface
- D. Send out from the E1/0/2 interface
- E. Discard directly
- F. Send out from the E1/0/3 interface
Answer: A,C,F
NEW QUESTION # 216
The correct statement about STP, RSTP and MSTP is ______. (Multiple choice)
- A. MSTP is compatible with RSTP, but not compatible with STP.
- B. RSTP is an optimized version of the STP protocol. The delay for the port to enter the forwarding state is greatly shortened under certain conditions, which shortens the time required for the network to finally reach topological stability.
- C. MSTP cannot converge quickly. When the network topology changes, the originally blocked port needs to wait for a period of time before it becomes the forwarding state.
- D. MSTP can make up for the shortcomings of STP and RSTP. It can not only converge quickly, but also enable the traffic of different VLANs to be forwarded along their respective paths, thereby providing a better load sharing mechanism for redundant links.
Answer: B,D
NEW QUESTION # 217
The command to change the link encapsulation from PPP to HDLC on the MSR router is ______.
- A. encapsulation hdlc
- B. line hdlc
- C. line-protocol hdlc
- D. link-protocol hdlc
Answer: D
NEW QUESTION # 218
The WAN link between the two routers MSR-1 and MSR-2 uses the PPP protocol, and RIP is configured on the two routers to advertise routing information to each other. At present, you can see the RIP routes advertised by MSR-2 on MSR-1, but you can't see any RIP routes in the routing table of MSR-2. The possible reason is ______. (Multiple choice)
- A. MSR-1 only started RIP on the WAN interface, and did not start RIP on other interfaces
- B. The RIP versions of the two routers are inconsistent
- C. The RIP of MSR-1 is configured with silent-interface all
- D. The RIP of MSR-2 is configured with silent-interface all
Answer: A,B,C
NEW QUESTION # 219
The WAN link between the only two routers MSR-1 and MSR-2 in the customer network adopts the PPP protocol, and the two ends learn each other's routes by configuring RIP. Currently, the route learning is normal, and now it is in the RIP of MSR-1. The following commands are added to the configuration:
[MSR-1-rip-1] silent-interface all
So ______ . (Multiple choice)
- A. This command makes all interfaces of MSR-1 only send routing updates and not accept routing updates
- B. 10 minutes after configuring this command, the RIP route in the MSR-2 routing table disappears
- C. This command makes all interfaces of MSR-1 only receive routing updates without sending routing updates
- D. 10 minutes after configuring this command, the RIP route in the MSR-1 routing table disappears
Answer: B,C
NEW QUESTION # 220
The FTP protocol is a protocol based on ______.
- A. PX
- B. UDP
- C. TCP
- D. SSH
Answer: C
NEW QUESTION # 221
The two MSR routers MSR-1 and MSR-2 are interconnected back-to-back through their S1/0 interfaces, and their GigabitEthernet0/0 interfaces are respectively connected to the client hosts HostA and HostB: HostA----GE0/0--MSR-1 --S1/0---------S1/0--MSR-2--GE0/0----HostB
By configuring the IP address and routing, HostA can communicate with HostB in the current network. Now the following ACL configuration is added to the router MSR-1:
acl number 3000
rule 0 deny icmp icmp-type echo
interface GigabitEthernet0/0
ip address 192.168.0.1 255.255.255.0
firewall packet-filter 3000 inbound
So which of the following statements are correct? (Multiple choice questions)
- A. Can ping HostA on HostB
- B. Can ping HostB on MSR-1
- C. Can't ping HostB on HostA
- D. I cannot ping my gateway address on HostA, that is, the interface address of GE0/0 on MSR-1
Answer: A,B,C,D
NEW QUESTION # 222
Data segmentation is done in ______ in the OSI reference model.
- A. Transport layer
- B. Physical layer
- C. Access layer
- D. Network layer
Answer: A
NEW QUESTION # 223
The broadcast address of the natural classification network segment corresponding to the IP address 125.1.1.1 is ____________.
Answer:
Explanation:
125.255.255.255
NEW QUESTION # 224
The following descriptions about Trunk ports and links are correct ______. (Multiple choice)
- A. The PVID value of the Trunk port cannot be modified
- B. Trunk link can carry data frames with different VLAN IDs
- C. When the Trunk port receives a data frame, when it is checked that the data frame does not have a VLAN ID, the data frame adds the corresponding PVID value to the port as the VLAN ID
- D. The data frames transmitted on the Trunk link are all with VLAN ID
Answer: B,C
NEW QUESTION # 225
After turning on the debugging, you can use the ______ command to turn off the debugging.
- A. undo terminal debugging
- B. undo terminal monitor
- C. no debugging all
- D. undo debugging all
Answer: D
NEW QUESTION # 226
Suppose an MSR router obtains two routes to the destination network segment 100.120.10.0/24. The Cost of these two routes are 120 and 10, and the priority is 10 and 150 respectively. Then the data packet destined for this destination address will be ______. (Multiple choice)
- A. Preferentially match the route with priority 10
- B. Preferentially match the route with Cost 10
- C. Preferentially match the route with priority 150
- D. Preferentially match the route with Cost 120
Answer: A
NEW QUESTION # 227
The network delay (delay) defines the time required for the network to transmit data from one network node to another network node. Network latency includes ______. (Multiple choice)
- A. media access delay (access delay)
- B. propagation delay (propagation delay)
- C. queuing delay
- D. switching delay (switching delay)
Answer: B,D
NEW QUESTION # 228
Which of the following statements about MAC addresses are correct? (multiple choice)
- A. The MAC address is solidified in ROM and cannot be changed under normal circumstances
- B. MAC address is a logical address that is easy to change
- C. Usually only terminal hosts need MAC addresses, routers and other network devices do not need
- D. Ethernet uses MAC address to identify host
Answer: A,D
NEW QUESTION # 229
If you want to achieve the entire network interoperability, as shown in the figure, there are 4 ways to divide the OSPF area, which is reasonable? (multiple choice)
- A. Figure 4
- B. Figure 3
- C. Picture 2
- D. Picture 1
Answer: A,B,C,D
NEW QUESTION # 230
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