Which type of attack is characterized by flood of packet that are requesting a TCP connection to a server?

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?

As a frame leaves a Layer 3 device, the Layer 2 encapsulation information is changed from what it was when it entered the device. For what two reasons can this happen? (Choose two.)

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

A network interface port has collision detection and carrier sensing enabled on a shared twisted pair network. From this statement, what is known about the network interface port?

What is the default routing update period for RIPv2?

Which statements describe two of the benefits of VLAN Trunking Protocol? (Choose two.)

A router has learned three possible routes that could be used to reach a destination network. One route is from EIGRP and has a composite metric of 20514560. Another route is from OSPF with a metric of 782. The last is from RIPv2 and has a metric of 4. Which route or routes will the router install in the routing table?

Which two statements are true regarding EIGRP? (Choose two.)

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