IS 3120 CHAPTER 8

Question 1

A situation in which broadcast messages get forwarded and replicated to a point that the network cannot handle all of the traffic.

Answer 1

Broadcast storm

Question 2

The port to a network segment with the lowest root path cost..

Answer 2

Designated port (DP)

Question 3

A mathematical representation of a set of objects..

Answer 3

Graph

Question 4

A method to combine multiple physical links together that can be used as a single logical link.

Answer 4

Link aggregation

Question 5

The protocol that defines how dynamic link aggregation operates.

Answer 5

Link Aggregation Control Protocol (LACP)

Question 6

A method to comine multiple physical links together that can be used as a single logical link.

Answer 6

Link bundling

Question 7

A spanning tree that maps to one or more VLANs

Answer 7

Multiple spanning tree (MST)

Question 8

Each group of VLANs that are assigned to an instance of a multiple spanning tree.

Answer 8

Multiple spanning tree instance (MSTI)

Question 9

A protocol that defines several data structures to create and maintain spanning trees.

Answer 9

Multiple spanning tree Protocol (MSTP)

Question 10

The first node in a spanning tree

Answer 10

Root bridge

Question 11

The accumulated cost of all the links in a path leading to the root bridge.

Answer 11

Root path cost.

Question 12

The port on any switch that leads to the root bridge and also has the lowest root path cost.

Answer 12

Root port (RP).

Question 13

A single piece of hardware or software that must operate for the larger system or network to operate.

Answer 13

Single point of failure (SPOF)

Question 14

A pat that starts at one node and visits all of the other nodes exactly once.

Answer 14

Spanning tree

Question 15

Switching loop Switches linked together in a loop or ring topology.

Answer 15

Switching loop.

Question 16

A link that connects to trunk ports on separate switches.

Answer 16

Trunk link

Question 17

A port on a switch that allows VLAN traffic to pass through it.

Answer 17

Trunk port

Question 18

The process of forwarding traffic within a VLAN from one switch to another.

Answer 18

VLAN trunking

Question 19

1. The MAC address FF:FF:FF:FF:FF:FF is a special broadcast address that sends a frame to all nodes connected to the same switch.
   TRUE OR FALSE

Answer 19

FALSE

Question 20

2. Which device type separates one broadcast domain from another?
3. Repeater
4. Switch
5. Hub
6. Router

Answer 20

Router

Question 21

3. Which statement best describes a VLAN?
4. Defines a group of devices that communicate as if they were a single collision domain.
5. Defines a group of devices that communicate as if they were a single broadcast domain.
6. Aggregates several collision domains into a larger virtual collision domain.
7. Aggregates several broadcast domains into a larger virtual broadcast domain.

Answer 21

Defines a group of devices that communicate as if they were a single broadcast domain

Question 22

4. IEEE 802.1q defines VLAN operation. VLANs are defined at which OSI reference Model layer?
5. Layer 4
6. Layer 3
7. Layer 2
8. Layer 1

Answer 22

Layer 2

Question 23

5. What must a switch add to an Ethernet frame that travels to a VLAN on another switch?
6. VLAN tag
7. Trucking address
8. Destination switch MAC address
9. Aggregation header

Answer 23

VLAN tag

Question 24

6. VLANs are most closely related to which Layer 3 concept?
7. Private address range
8. Broadcast domain
9. Router group
10. Subnetwork

Answer 24

Subnetwork

Question 25

7. A ___ port carries trafic to another switch in a VLAN.

Answer 25

Trunk

Question 26

8. What term describes multiple paths between switches? 1. Switching loop 2. Spanning tree 3. Graph 4. Mesh

Answer 26

Switching loop

Question 27

9. The ___ is the first node in the spanning tree.

Answer 27

Root bridge

Question 28

10. What is the primary enhancement of RSTP over STP? 1. RSTP is automatic and STP requires manual configuration 2. RSTP converges faster than STP 3. RSTP is fully resilient 4. RSTP supports VLANs

Answer 28

RSTP converges faster than STP

Question 29

11. What are the two main benefits to using IEEE 802.3ad link aggregation? 1. Handles more types of traffic (different protocols) 2. Increases effective bandwidths of switches 3. Automatically loads balances by moving devices to the fastest switch 4. Provides resilience

Answer 29

Increases effective bandwidths of switches Provides resilience

Question 30

12. The ___ defines how dynamic link aggregation operates.

Answer 30

Link Aggregation Control Protocol (LACP)