Hosts: 

A = 10.50.22.78/26 

B = 10.50.22.130/26 

They cannot reach each other. Explanation?

Host A and Host B are in the same subnet. Host A sends an ARP request, but Host B is

powered off. What will Host A experience?

A PC with IP 192.168.70.49/26 cannot reach another PC at 192.168.70.100. What explains this?

A switch’s MAC table shows the same MAC address appearing on 5 different ports in

rapid succession. Cause?

Given network 172.30.10.0/24, you create 16 subnets

.

A student claims

A link runs at 1 Gbps but frequently renegotiates to 100 Mbps during load. Cause?

A student runs traceroute. The first 6 hops appear normally, but all later hops show

“***”. Which explanation is most accurate?

Two hosts: 

A = 172.16.5.130/25 

B = 172.16.5.200/25 

Can they communicate?

A frame arrives at a switch with a valid CRC. What does this indicate?

A host repeatedly sends ARP requests. The gateway sends ARP replies, but the host still

cannot forward packets. Wireshark shows the host is rejecting replies. Reason?