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-4B-C1 from the E1/0/2 interface, the switch will ______ the frame.

• A.Send out from the E1/0/1 interface
• B.send out from E1/0/4 interface
• C.send out from all interfaces on the switch
• D.Send out from the E1/0/2 interface
• E.Discard directly
• F.Send out from the E1/0/3 interface

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The following description about the characteristics of Comware, which is correct is ______.

• A.Support multiple CPUs
• B.Support IPv4 and IPv6 dual protocol
• C.Integration of routing and switching functions
• D.High reliability and flexible expansion
• E.Flexible cutting and customization functions

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A network connection is like:
HostA----GE0/0--MSR-1--S1/0---------S1/0--MSR-2--GE0/0----HostB
Two MSR routers MSR-1 and MSR-2 are interconnected back-to-back through their S1/0 interfaces, and their GE0/0 interfaces are respectively connected to the client hosts HostA and HostB. The IP address of HostA is 192.168.0.2/24, and the address of the S0/0 interface of MSR-2 is 1.1.1.2/30. By configuring other relevant IP addresses and routes, HostA can communicate with HostB in the current network.
Nowadays, the customer requires that HostA is not allowed to log in to the MSR-2 through Telnet at address 1.1.1.2.
So which of the following configurations can meet this requirement? (multiple choice)

• A.Configure the following ACL on MSR-1 and apply it to the outbound direction of S1/0 of MSR-1: [MSR-1]firewall enable [MSR-1]acl number 3000 [MSR-1-acl- adv-3000]rule 0 deny tcp source 192.168.0.2 0 destination 1.1.1.2 0.0.0.3 destination-port eq telnet
• B.Configure the following ACL on MSR-1 and apply it to the inbound direction of S1/0 of MSR-1: [MSR-1]firewall enable [MSR-1]acl number 3000 [MSR-1-acl- adv-3000]rule 0 deny tcp source 192.168.0.1 0.0.0.255 destination 1.1.1.2 0 destination-port eq telnet
• C.Configure the following ACL on MSR-1 and apply it to the outbound direction of GE0/0 of MSR-1: [MSR-1]firewall enable [MSR-1]acl number 3000 [MSR-1-acl- adv-3000]rule 0 deny tcp source 192.168.0.2 0 destination 1.1.1.2 0 destination-port eq telnet
• D.Configure the following ACL on MSR-1 and apply it to the inbound direction of GE0/0 of MSR-1: [MSR-1]firewall enable [MSR-1]acl number 3000 [MSR-1-acl-adv -3000]rule 0 deny tcp source 192.168.0.1 0.0.0.255 destination 1.1.1.2 0.0.0.3 destination-port eq telnet

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Two MSR routers MSR-1 and MSR-2 are connected through the WAN and dynamically complete remote route learning through RIPv2.
After stable for 2 minutes, the RIP update message from MSR-2 is received on MSR-1, which contains the route with Cost of 14, then ______. (Multiple choice)

• A.If the MSR-1 routing table originally contains the same route received from the neighbor, and its Cost is less than 14, the route will also be updated
• B.If there is no such route in the routing table of MSR-1, then the route will be added to the routing table of MSR-1
• C.If the routing table of MSR-1 originally has the route, the routing entry will only be updated when its Cost is greater than 14.
• D.If the routing table of MSR-1 originally has the route, and its Cost is less than 14, then the routing entry on MSR-1 will not be updated

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If all 0s and all 1s subnets can be used as effective subnets, the class C address 192.168.1.0 is subnetted with a 27-bit subnet mask, and the number of effective subnets that can be divided is ______.

• A.4
• B.6
• C.8
• D.2

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