Which two subnetworks would be included in the summarized address of 172.31.80.0 /20?
(Choose two.)

The network administrator has discovered that the power supply has failed on a switch in the
company LAN and that the switch has stopped functioning. It has been replaced with a Cisco
Catalyst 2950 series switch. What must be done to ensure that this new switch becomes the root
bridge on the network?

Refer to the exhibit. Assume that all of the router interfaces are operational and configured
correctly. How will router R2 be affected by the configuration of R1 that is shown in the exhibit?

Which three IP addresses can be assigned to hosts if the subnet mask is /27 and subnet zero is
usable? (Choose three.)

Refer to the exhibit. A packet with a source IP address of 192.168.2.4 and a destination IP
address of 10.1.1.4 arrives at the HokesB router. What action does the router take?

Refer to the exhibit. From RouterA, a network administrator is able to ping the serial interface of
RouterB but unable to ping any of the subnets attached to RouterB. Based on the partial outputs in
the exhibit, what could be the problem?

What are three characteristics of the OSPF routing protocol? (Choose three.)

Refer to the exhibit. SW1 and SW2 have default configurations. What will happen if host 1 sends a
broadcast?