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質問 # 225
The two MSR30 routers of the customer are interconnected through the WAN interface S0/0, and PPP and RIP protocols are running at the same time. For security considerations, PPP PAP authentication and RIP plaintext authentication must be configured separately. Then the similarity between these two verification methods is ______.
- A. Both use 128bit key length
- B. All pass clear text keywords on the Internet
- C. Both are two handshake verification methods
- D. Usernames and passwords are spread on the network in clear text
正解：B
質問 # 226
Among the STP port states listed below, which are unstable intermediate states? (multiple choice)
- A. Learning
- B. Forwarding
- C. Listening
- D. Disabled
- E. Blocking
正解：A、C
質問 # 227
The subnet mask of the IP address 132.119.100.200 is 255.255.255.224, so the broadcast address of the subnet where it is located is ______.
- A. 132.119.100.225
- B. 132.119.100.193
- C. 132.119.100.255
- D. 132.119.100.223
正解：D
質問 # 228
In the network environment as shown in the figure, perform the following NAT configuration on RTA:
[RTA]acl number 2000
[RTA-acl-basic-2000]rule 0 permit source 100.0.0.0 0.0.0.255
[RTA-acl-basic-2000]nat address-group 1 200.76.28.11 200.76.28.11
[RTA]interface Ethernet0/1
[RTA-Ethernet0/1]nat outbound 2000 address-group 1
After configuration, both Client_A and Client_B are accessing Server, then the NAT table of RTA may be ______ at this time.
- A. Protocol GlobalAddr Port InsideAddr Port DestAddr Port 1 200.76.28.12 12289 100.0.0.1 1024 200.76.29.4 1024 VPN: 0, status: 11, TTL: 00:01:00, Left: 00:00:59 1 200.76. 28.11 12288 100.0.0.2 512 200.76.29.4 512 VPN: 0, status: 11, TTL: 00:01:00, Left: 00:00:51
- B. Protocol GlobalAddr Port InsideAddr Port DestAddr Port 1 200.76.28.11 12289 100.0.0.1 1024 200.76.29.4 1024 VPN: 0, status: NOPAT, TTL: 00:01:00, Left: 00:00:59 1 200.76. 28.11 12288 100.0.0.2 512 200.76.29.4 512 VPN: 0, status: 11, TTL: 00:01:00, Left: 00:00:51
- C. Protocol GlobalAddr Port InsideAddr Port DestAddr Port 1 200.76.28.11 12289 100.0.0.1 1024 200.76.29.4 1024 VPN: 0, status: 11, TTL: 00:01:00, Left: 00:00:59 1 200.76. 28.12 12288 100.0.0.2 512 200.76.29.4 512 VPN: 0, status: 11, TTL: 00:01:00, Left: 00:00:51
- D. Protocol GlobalAddr Port InsideAddr Port DestAddr Port 1 200.76.28.11 12289 100.0.0.1 1024 200.76.29.4 1024 VPN: 0, status: 11, TTL: 00:01:00, Left: 00:00:59 1 200.76. 28.11 12288 100.0.0.2 512 200.76.29.4 512 VPN: 0, status: 11, TTL: 00:01:00, Left: 00:00:51
正解：D
質問 # 229
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. The way to exchange RIP packets between the two routers is multicast
- B. CHAP authentication can be configured on the WAN interface of the two routers to enhance network security
- C. RIP packets between two routers are transmitted based on TCP
- D. 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
正解：B、D
質問 # 230
Use the ______ command on the MSR router to turn off the information center function.
- A. info-center disable
- B. disable info-center
- C. undo info-center enable
- D. undo info-center
正解：C
質問 # 231
The following statement about the upgrade of H3C network equipment is correct ______. (Multiple choice)
- A. In an environment where the complex interaction between the client and the server is not convenient, you can use TFTP to upgrade
- B. When the device cannot boot to the command line mode and needs to upgrade the operating system software, Xmodem and TFTP can be used
- C. When using FTP to upgrade, the device can be used as an FTP server or client
- D. Use Xmodem to upgrade to the same speed as FTP
正解：A、B、C
質問 # 232
In the LCP negotiation phase, what content will PPP negotiate? (multiple choice)
- A. Network layer protocol type
- B. Link layer encapsulation protocol type
- C. Verification method
- D. Maximum transmission unit
正解：C、D
質問 # 233
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 cannot learn the RIP route of the opposite end
- B. MSR-1 still has the RIP route to the opposite end
- C. MSR-2 cannot learn the RIP route of the opposite end
- D. MSR-2 still has the RIP route to the opposite end
正解：A、D
質問 # 234
There is a default route in the router's routing table, its destination network segment and mask are both 0.0.0.0, and its next hop is the router's S0/0 interface, then the following description of this route is correct. ______. (Multiple choice)
- A. When the router receives a data packet to the destination address 120.1.1.1, if there is no other exact match in the router table, then the data packet will match this default route
- B. The priority of this route may be 100
- C. The route has the shortest mask, so the data packet will be forwarded according to the default route only if there is no other route matching the data packet
- D. The metric value of this route may be 3
正解：A、B、C、D
質問 # 235
Which of the following messages are used in IPv6 address resolution? (multiple choice)
- A. Router solicitation message
- B. Neighbor solicitation message
- C. router advertisement message
- D. Neighbor announcement message
正解：B、D
質問 # 236
After executing the display stp command on the switch SWA, the switch output is as follows: [
SWA]display stp
-------[CIST Global Info][Mode MSTP]-------
CIST Bridge: 32768.000f-e23e-f9b0
Bridge Times :Hello 2s MaxAge 20s FwDly 15s MaxHop 20
It can be judged from the above output ______.
- A. The current switch is working in MSTP mode
- B. The current switch is working in RSTP mode
- C. The current switch is the root bridge
- D. The bridge priority of the current switch is 32768
正解：A
質問 # 237
In the following statement about Easy IP, the error is ______.
- A. Easy IP is suitable for NAT device dialing or dynamically obtaining public network IP address
- B. Easy IP is a special case of NAPT
- C. No need to configure NAT address pool when configuring Easy IP
- D. When configuring Easy IP, there is no need to configure ACL to match the packets that need to be translated by NAT
正解：D
質問 # 238
The messages exchanged between the DHCP relay and the DHCP server use ______.
- A. broadcast
- B. unicast
- C. anycast
- D. multicast
正解：B
質問 # 239
The two routers of the customer are connected back-to-back through V.35 cables, and the PPP protocol is running on the V.35 interface, and the following interface information is available on one of the routers:
[MSR-Serial0/0]display interface Serial 0/0
Serial6/0 current state: UP
Line protocol current state: DOWN
From the above information, it can be inferred that ______. (Multiple choice)
- A. The physical connection between the two routers is normal, but the PPP protocol negotiation is not successful
- B. The LCP negotiation of PPP may not pass
- C. The IP addresses of the V.35 interfaces of the two routers may not be in the same network segment
- D. PPP verification may have failed
正解：A、B、D
質問 # 240
Which of the following options are features of port-based 802.1x authentication?
- A. When the first user under the port goes offline, other users will also be denied access to the network
- B. All access users under the port need to be independently verified
- C. As long as the first user under the port is successfully authenticated, other access users can use network resources without authentication
- D. When a user goes offline, only that user cannot use the network
正解：A、C
質問 # 241
The two routers MSR-1 and MSR-2 are interconnected through the S0/0 interface, and the two routers learn the routes of the LAN segment by running the RIP protocol.
See the following configuration commands on MSR-1:
[MSR-1-Serial0/0] rip authentication-mode md5 rfc2453 H3C
Then the correct interpretation of this command is ______. (Multiple choice)
- A. Configure RIP to use MD5 plaintext authentication
- B. Configure RIP to use MD5 cipher text authentication
- C. Specify the message format specified by RFC2453 for MD5 authentication
- D. Specify the H3C private extended protocol message format for MD5 authentication
正解：B、C
質問 # 242
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