Review - Chapter 1

Question 1

Switches include support for what features?

Answer 1

○ Application intelligence
○ Unified network services
○ Nonstop communications
○ Integrated security
○ Operational manageability

Question 2

Broadcast Domain

Answer 2

A set of network devices that receive broadcast frames from any device within the group and is limited to a specific Layer 2 segment that contains a single IP subnet

Question 3

MAC Address

Answer 3

○ 6 byte data link layer address required for every port/device
○ Used to locate specific ports and for routing/data structures

Question 4

Other names for MAC addresses

Answer 4

○ Hardware address
○ MAC layer address
○ Physical address

Question 5

Forwarding

Answer 5

If the destination MAC address is found in the CAM table, the switch sends the frame out the port that is associated with that destination MAC address

Question 6

Filtering

Answer 6

If the associated port to send the frame out is the same port that the frame originally came in on, there is no need to send the frame back out the same port and the frame is ignored

Question 7

Flooding(1)

Answer 7

If the destination MAC address is not in the CAM table the switch sends the frame out all other ports in the same VLAN as the received frame but not the port which the frame was received

Question 8

Flooding(2)

Answer 8

If the destination MAC address of the received frame is the broadcast address the frame is sent out all ports in the same VLAN as the received frame but not the port which the frame was received

Question 9

VLANs

Answer 9

A grouping of ports on a switch called a virtual local-area network that can each be considered an individual LAN segment

Question 10

Trunking

Answer 10

A mechanism that is most often used to allow multiple VLANs to function independently across multiple switches

Question 11

Trunk Port

Answer 11

A port that can be configured to send and receive traffic for many VLANs

Question 12

Tagging

Answer 12

When a trunk port attaches VLAN information to each frame

Question 13

Spanning Tree Protocol (STP)

Answer 13

A dynamic protocol whose purpose is to identify and temporarily block the loops in a network segment or VLAN and involves electing a root bridge or switch

Question 14

Port Channels

Answer 14

A technique used when you have multiple connections to the same device. It groups ports together to work as one unit

Question 15

Multilayer Switching (MLS)

Answer 15

The ability of a switch to forward frames based on information in the Layer 3 and sometimes Layer 4 header