Chapter 9

Question 1

A Cisco switch feature in which the switch watches Ethernet frames that come in an interface, tracks the source MAC addresses of all such frames, and takes a security action if the number of different such MAC addresses is exceeded.

Answer 1

Port security

Question 2

An IEEE standard mechanism (802.3u) with which two nodes can exchange messages for the purpose of choosing to use the same Ethernet standards on both ends of the link, ensuring that the link functions and functions well.

Answer 2

Autonegotiation

Question 3

Generically, any communication in which two communicating devices can concurrently send and receive data. In Ethernet LANs, the allowance for both devices to send and receive at the same time, allowed when both devices disable their CSMA/CD logic.

Answer 3

Full duplex

Question 4

Generically, any communication in which only one device at a time can send data. In Ethernet LANs, the normal result of the CSMA/CD algorithm that enforces the rule that only one device should send at any point in time.

Answer 4

Half duplex

Question 5

A short reference to an Ethernet NIC or switch port that supports speed of 10 Mbps and 100 Mbps.

Answer 5

10/100

Question 6

A short reference to an Ethernet NIC or switch port that supports speeds of 10 Mbps, 100 Mbps, and 1000 Mbps (that is, 1 Gbps).

Answer 6

10/100/1000

Question 7

Port security provides an easy way to discover the MAC addresses used off each port using what feature?

Answer 7

sticky secure MAC addresses