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H3C Constructing Small - and Medium - Sized Enterprise Network Sample Questions:

1. The WAN link between the two routers MSR-1 and MSR-2 uses the PPP protocol. The two ends learn each other's routes by configuring RIP. Currently, the route learning is normal. Now the following commands are added to the RIP configuration of MSR-1:
[MSR-1-rip-1] silent-interface all
So ______ . (Multiple choice)

A) After configuring this command, the RIP route in the MSR-1 routing table disappears immediately
B) This command makes all interfaces of MSR-1 only receive routing updates without sending routing updates
C) This command makes all interfaces of MSR-1 only send routing updates and not accept routing updates
D) After configuring this command, the RIP route in the MSR-2 routing table disappears immediately

2. 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 1 200.76.28.11 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
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: 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
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: 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
D) 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

3. Router MSR-1 is interconnected with MSR-2 and MSR-3 respectively. Among them, there is a RIP route learned from MSR-2 to the destination network segment 120.10.12.0/24 in the routing table of MSR-1. It is 3; at this time, MSR-1 also receives a RIP route from MSR-3 that is still going to the destination network segment 120.10.12.0/24, and its Cost is 15, then ______.

A) The routing table of MSR-1 is not updated, and the network segment route learned from MSR-2 is still retained
B) The routing table of MSR-1 will be updated to the route learned from MSR-3 to the cost of 15.
C) The routing table of MSR-1 will be updated, because RIP routing with a Cost of 15 means that the network may have loops
D) The routing table of MSR-1 will not be updated, because RIP routing with a Cost of 15 means unreliable routing, and RIP will not write it into its routing table

4. The 802.11b protocol defines 14 channels in the 2.4GHz frequency band, and there is overlap in the frequency spectrum between adjacent channels. In order to maximize the use of frequency band resources, which set of channels can be used for wireless coverage?

A) 3, 6, 9
B) 2, ​​7, 12
C) 1, 6, 10
D) 1, 5, 9

5. If all 0 and all 1 subnets can be used as effective subnets, the class C address 192.168.1.0 is subnetted with a 26-bit subnet mask, and the number of effective subnets that can be divided is ______.

A) 6
B) 8
C) 4
D) 2

Solutions: