In the switching network shown in the figure, all switches have enabled the STP protocol.

SWA was selected as the root bridge. According to the information in the figure, the _______ port should be set to the Blocking state. (Multiple choice)

The two routers MSR-1 and MSR-2 complete dynamic routing learning through RIP, and you can see the following debug information on MSR-1:
*Nov 26 02:20:25:353 2008 H3C RM/6/RMDEBUG: RIP 1: Sending v2 request on Serial 0/0 from 3.3.3.3
*Nov 26 02:20:25:353 2008 H3C RM/6/RMDEBUG: RIP 1: Sending request on interface Serial0/0 from 3.3.3.3 to 224.0.0.9
*Nov 26 02:20:25:400 2008 H3C RM/6/RMDEBUG: RIP 1: Receiving v2 request on Serial0/0 from 3.3.3.1
According to the debug information, ______ can be inferred. (Multiple choice)

The two empty-configured routers MSR-1 and MSR-2 are connected as follows: HostA----GE0/0--MSR-1--S1/0---------S1/0-- MSR-2--GE0/0----HostB
The WAN interconnection network segment of the two routers is 192.168.10.0/30, and the GE0/0 address of MSR-1 is 172.16.1.1/24.
After configuration, HostA can ping through 172.16.1.1, and the WAN between the two routers is also interoperable.
Now the following configuration is added to MSR-1:
[MSR-1]rip
[MSR-1-rip-1]network 192.168.10.1
[MSR-1-rip-1]network 172.16.1.1
And started the RIP process on MSR-2.
Which of the following configurations must be done on the MSR-2 to ensure that the MSR-2 learns the RIP route? (multiple choice)

The number of available host addresses contained in the natural classification network segment corresponding to IP address 172.15.1.1 is ___________. (Please fill in Arabic numerals)

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.