The network administrator of a certain enterprise needs to set a subnet mask to divide the class C network 211.110.10.0 that he is responsible for into at least 8 subnets. How many subnet masks can be used for division? (multiple choice)

There are two hops from the source device to the destination device. Use the tracert command to detect the path. When detecting the first hop, the source device sends a UDP packet with a TTL of 1 to the middle hop; when detecting the second hop, the source device sends a UDP packet with a TTL of 2, and the packet reaches the middle hop first, and the TTL is decremented When the message reaches the destination, the TTL will be decremented to 0. At this time, the destination device will send an ICMP_____ message to the source to inform the source device that it has tracked the destination address.

The subnet mask of the IP address 132.119.100.200 is 255.255.255.240, so the IP subnet address where it is located is ______.

The customer's network looks like this:
HostA----GE0/0--MSR-1--S1/0---------S1/0--MSR-2--GE0/0----HostB
The WAN interfaces on the two routers are configured as follows:
MSR-1:
firewall enable
acl number 3000
rule 0 deny ip source 192.168.0.0 0.0.0.255
rule 5 permit ip
interface Serial1/0
link-protocol ppp
firewall packet-filter 3000 outbound
ip address 6.6.6.2 255.255.255.0
MSR-2:
interface Serial1/0
link-protocol ppp
ip address 6.6.6.1 255.255.255.0
Assuming that the IP address of HostA is 192.168.0.2/24, and the routing and other related interface configurations are correct, then _______. (Multiple choice)

On the MSR router, by default, the configuration file is suffixed with ______.