H3CNE GB0-191-ENUリアル試験問題と無料最新回答2023年11月19日
GB0-191-ENU究極な学習ガイド
質問 # 79
In the display of the display interface command, which of the following LCP and NCP status indicates that the PPP link has been established?
- A. LCP Closed, IPCP Opened
- B. LCP Closed, IPCP Closed
- C. LCP Initial, IPCP Closed
- D. LCP Opened, IPCP Opened
正解：D
質問 # 80
Two empty-configured MSR routers are directly connected back-to-back through their respective WAN Serial1/0 interfaces, and their interconnection network segment is 192.0.0.0/24.
At the same time, the two routers are connected to their respective LAN segment users through their respective GigabitEthernet0/0:
HostA----GE0/0--MSR-1--S1/0---------S1/0--MSR-2--GE0/0----HostB
Configure RIPv1 on the two routers, and now both routers have learned the RIP route of the opposite LAN segment. So which of the following statements are correct?
- A. If the LAN segment of one of the routers is 10.0.0.0/24, then the routing table of the other router will learn the route of 10.0.0.0/8
- B. The way to exchange RIP packets between the two routers is multicast
- C. CHAP authentication can be configured on the WAN interface of the two routers to enhance network security
- D. RIP packets between two routers are transmitted based on TCP
正解：A、C
質問 # 81
The command to configure the switch SWA to work in RSTP working mode is ______.
- A. [SWA] undo stp mode stp
- B. [SWA]stp mode rstp
- C. [SWA-Ethernet1/0/4] stp mode rstp
- D. [SWA-Ethernet1/0/4] undo stp mode stp
正解：B
質問 # 82
A Layer 3 switch is connected to the GE0/0 interface of the customer's router MSR-1, and this Layer 3 switch is the default gateway for multiple network segments of the customer's office network to which it is connected. MSR-1 is connected to the Internet through the serial port S1/0. The entire network has been interoperable normally, and office network users can access the Internet. Add the following ACL configuration on the router:
firewall enable
acl number 3004
rule 0 deny ip source 192.168.1.0 0.0.0.255
rule 5 permit tcp source 192.168.0.0 0.0.255.255
rule 10 permit icmp
At the same time, ACL 3004 is applied in the inbound direction of GE0/0, then ______. (Multiple choice)
- A. The router allows users on the 192.168.1.0/24 network segment to pass the WWW service traffic to the Internet
- B. The router prohibits all IP traffic to the Internet from users on the 192.168.1.0/24 network segment from passing through
- C. The router allows users on the 192.168.2.0/24 network segment to pass the FTP data stream sent from the Internet
- D. The router allows ICMP packets of all users to pass
正解：B、C
質問 # 83
In the switching network shown in the figure, all switches have enabled the STP protocol.
According to the information in the figure, which switch will be selected as the root bridge?
- A. SWC
- B. SWB
- C. SWA
- D. SWD
- E. Insufficient information, unable to judge
正解：B
質問 # 84
If you want the current configuration to continue to take effect after the system restarts, you should use the _______ command to save the current configuration to the configuration file before restarting the device. (Please write full order)
正解：
解説：
save
質問 # 85
The port Ethernet1/0/4 of the switch SWA is connected to a router.
If the administrator wants to disable the spanning tree function on this port, which of the following commands needs to be used?
- A. [SWA] undo stp enable
- B. [SWA-Ethernet1/0/4] undo stp enable
- C. [SWA-Ethernet1/0/4] stp disable
- D. [SWA]stp disable
正解：C
質問 # 86
The customer's routers MSR-1 and MSR-2 are interconnected through their GigabitEthernet0/0, and RIP is running between the two routers. RIP has correctly completed remote routing learning. The following configuration is added on MSR-1: firewall enable acl number 3000 rule 0 deny udp destination-port eq 520 rule 5 permit ip and this ACL is applied to the inbound direction of MSR-1 interface GigabitEthernet0/0. So ______ .
- A. MSR-1 still has the RIP route to the opposite end
- B. MSR-1 cannot learn the RIP route of the opposite end
- C. MSR-2 still has the RIP route to the opposite end
- D. MSR-2 cannot learn the RIP route of the opposite end
正解：B、C
質問 # 87
The default subnet mask for class B addresses is ______.
- A. None of the above is correct
- B. 255.0.0.0
- C. 255.255.255.0
- D. 255.255.0.0
正解：D
質問 # 88
The correct statement below is ______. (Multiple choice)
- A. In STP compatibility mode, each port of the device will send out STP BPDU packets
- B. MSTP and RSTP can identify each other's protocol packets and are compatible with each other
- C. In MSTP mode, each port of the device will send out MSTP BPDU packets. When a port is found to be connected to an STP device, the port will automatically migrate to work in STP compatibility mode
- D. In RSTP mode, each port of the device will send out RSTP BPDU packets. When it is found to be connected to an STP device, the port will automatically migrate to work in STP compatibility mode
正解：A、B、C、D
質問 # 89
WLAN (Wireless LAN) is a combination of computer network and wireless communication technology. Which of the following are WLAN technical standards? (multiple choice)
- A. 802.11a
- B. 802.11b
- C. 802.11c
- D. 802.11g
正解：A、B
質問 # 90
Which of the following statements about MAC addresses are wrong? (multiple choice)
- A. MAC address is a logical address that is easy to change
- B. Ethernet uses MAC address to identify host
- C. Usually only terminal hosts need MAC addresses, routers and other network devices do not need
- D. The MAC address is solidified in ROM and cannot be changed under normal circumstances
正解：A、C
質問 # 91
An empty MSR router RTA connects two routers RTB and RTC running in OSPF Area 0 through GE0/0 and GE1/0 respectively. The IP addresses of the interfaces GE0/0 and GE1/0 of RTA are 192.168.3.2/24 and 192.168.4.2/24 respectively. Add the following configuration on RTA:
[MSR-ospf-1] area 0.0.0.0
[MSR-ospf-1-area-0.0.0.0]network 192.168.0 0.0.3.255
[MSR-GigabitEthernet0/0]ospf cost 2
[MSR-GigabitEthernet1/0]ospf dr-priority 0
Then the correct description of the above configuration is _____. (Multiple choice)
- A. RTA can only become the DR of the network segment where one of the GE interfaces is located
- B. Modifying the Cost of interface GE0/0 does not affect the establishment of OSPF adjacency
- C. RTA may become the DR of the network segment where the two GE interfaces are located
- D. This configuration has enabled OSPF on GE0/0 and GE1/0 of the MSR router
- E. This configuration only enables OSPF on the GE0/0 interface of the MSR router
正解：A、B、E
質問 # 92
The IP address of private network device A is 192.168.1.1/24, and its corresponding public network IP is 2.2.2.1;
The IP address of public network device B is 2.2.2.5. Now that device A is required to provide Telnet service to the public network, which of the following configurations can be used on the NAT device?
- A. nat server protocol tcp global 2.2.2.1 23 inside 192.168.1.1 23
- B. nat server protocol tcp global 2.2.2.1 telnet inside 192.168.1.1
- C. nat server protocol telnet global 2.2.2.1 inside 192.168.1.1
- D. acl number 2000 rule 0 permit source 192.168.1.1 0.0.0.255 nat address-group 1 2.2.2.1 interface Ethernet 0/1 nat outbound 2000 address-group 1
- E. acl number 2000 rule 0 permit source 192.168.1.1 0.0.0.255 nat address-group 1 2.2.2.1 interface Ethernet 0/1 nat outbound 2000 address-group 1 no-pat
正解：A
質問 # 93
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
正解：A、C
質問 # 94
Configure the unconfigured MSR router from the factory through the console port, and the baud rate of the terminal's serial port should be set to _____.
- A. 0
- B. 1
- C. 2
- D. 3
正解：D
質問 # 95
In Windows operating system, which command can display ARP table entry information?
- A. arp -d
- B. arp -a
- C. show arp
- D. display arp
正解：B
質問 # 96
The correct description of the startup process of the router system in the following options is ______.
- A. Decompress the application ------ load the application ------ start the bootrom ------ memory check
- B. start bootrom------ memory check------ load the application
- C. Memory check ------ start bootrom------ application decompression ------- application load
- D. Memory detection ------ application decompression ------ application loading
正解：C
質問 # 97
If the broadcast flag in the DHCP Discovery message sent by the DHCP client to the DHCP relay is 0, the DHCP relay responds to the DHCP offer message of the DHCP client with ______.
- A. anycast
- B. unicast
- C. broadcast
- D. multicast
正解：B
質問 # 98
The default subnet mask for class A addresses is ______.
- A. None of the above is correct
- B. 255.255.255.0
- C. 255.0.0.0
- D. 255.255.0.0
正解：C
質問 # 99
The two MSR routers are interconnected through their respective WAN interface S1/0, and RIPv2 is running on the two routers to dynamically complete the remote routing of each other. Now for security reasons, it is necessary to add verification on the RIP, so which of the following Is the RIP configuration correct?
- A. [MSR]rip authentication-mode simple 123
- B. [MSR-rip-2]rip authentication-mode simple 123
- C. [MSR-serial1/0]rip authentication-mode simple 123
- D. [MSR-rip-1] rip authentication-mode simple 123
正解：C
質問 # 100
The following commands were executed on an MSR router:
[MSR]display ip routing-table 100.1.1.1
Then the correct description of this command is ______.
- A. You can view the routing items that match the destination address of 100.1.1.1
- B. It is possible that the output of this command is two default routes
- C. You can view the routing entries that match the next hop address as 100.1.1.1
- D. This command is incorrect because it does not contain mask information
正解：A、B
質問 # 101
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