Network+ Chapter 11 Flashcards Preview

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Flashcards in Network+ Chapter 11 Deck (19):
1

What are 4 benefits of Layer 2 switching?


pg 339

Hardware-based bridging (ASIC)
Wire speed
Low latency
Low cost

2

what are 3 functions of Layer 2 switches that you will need to remember?

pg 340

Address learning
Forward/ filter decisions
Loop avoidance

3

Define Address Learning?



pg 341

Layer 2 Switches remember the source hardware address of each frame received on an interface and enter this information into a MAC database known as a forward/ filter table.

4

Why is it good to have redundancy between switches?

pg 344

Having redundancy between switches can help prevent complete network failures if one should fail.

5

What are the 5 methods the ports on a bridge or switch running STP can transition through?


pg 347

Blocking
Listening
Learning
Forwarding
Disabled

6

Whare are the 5 QoS methods problems that can affect data as it traverses network cable:



pg 353

Delay
Dropped packets
Error
Jitter
Out-of-order Delivery

7

Why would you create a static VLAN?
pg 354

static VLANs are the most secure.

8

Static access ports are either manually assigned to a VLAN or assigned through a________ server for use with ________.

pg 354

RADIUS
IEEE 802.1x

9

What two speeds can a trunk link run at?
pg 356

100Mbps or 1000Mbps

10

How many VLANs can be carried across traffic at once?
pg 356

1 to 4,094

11

Describe VLAN Trunking Protocol (VTP)?

pg 359

Its to manage all configured VLANs across a switched internetwork and to maintain consistency throughout that network.

12

What are 4 features that VTP has to offer?




pg 359

Consistent VLAN configuration across all switches in the network
Accurate tracking and monitoring of VLANs
Dynamic reporting of added VLANs to all switches in the VTP domain
Adding VLANs using plug-and-play

13

What are 4 requirements for VTP to communicate VLAN information between switches:



pg 359-360

The VTP management domain name of both switches must be set the same.
One of the switches has to be configured as a VTP server.
Set a VTP password if used.
No router is necessary and a router is not a requirement.

14

____________is a way of explicitly tagging VLAN information onto an Ethernet frame.

pg 357

Inter-Switch Link (ISL)

15

What does it mean when you configure a switch out-of band?

you aren't going through the network to configure the device. You are actually using a port to configure the switch instead.

16

What kind of environment would you use a unmanaged switch in?

home network

17

What is a unmanaged switch?

They are basic plug-and-play switches with no remote configuration, management, or monitoring options

18

Define Dynamic ARP inspection (DAI)?

(p. 364)

Its a feature that uses the DHCP snooping database of IP address to MAC address mappings to verify the MAC address mappings of each frame going through the switch.

19

Port Mirroring is also called what and what are their functions?

Pg 368

Switch Port Analyzer (SPAN) and Remote SPAN,

They allow you to sniff traffic switch on a network when using a switch.