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Network + > Chapter 11 > Flashcards

Chapter 11 Flashcards

1
Q

Because all the host involved had to go to the corporate backbone in order to reach any network services both LAN and mainframe. p336

A

Collapsed backbone

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2
Q

Bridges use software to create and manage a filter table but switches used what? p338

A

Applicationspecific Intergrated Circuits (ASICs)

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3
Q

Layer 2 switching provides the following benefits: p339

A

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

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4
Q

Both bridges and switches don’t forward Layer 2 broadcast. true or false p340

A

false they do forward broadcast

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5
Q

Switches have a higher number of ports than most bridges. true or false p340

A

true

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6
Q

There are three distinct functions of Layer 2 switching you need to know: p340

A

Address learning
Forward/filter decisions
Loop avoidance

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7
Q

Not transmitting the frame preserves bandwidth on the other network segments and is called what? p343

A

Frame filtering

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8
Q

The bewildered switch could get so caught up in constantly updating the MAC filter table with source hardware address location that it might fail to forward a frame. This is called what? p345

A

Thrashing the MAC table

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9
Q

STP uses the ________ to first create a topology database and then search out and destroy redundant link. p346

A

Spanning-tree algorithm (STA)

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10
Q

(STP) stands for? p346

A

Spanning Tree Protocol (STP)

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11
Q

The ports on a bridge or switch running STP can transition through five different states: p347

A 
Blocking
Listening
Learning
Forwarding
Disabled
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12
Q

Is what happens when all the ports on bridges and switches have transitioned to either forwarding or blocking modes. p347

A

STP Convergence

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13
Q

Switches populate the MAC address table in learning and forwarding modes only. true or false p347

A

True

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14
Q

Was not designed to be a brand new protocol but more of an evolution of the 802.1d standard with faster convergence time when a topology change occurs. p348

A

Rapid Spanning Tree protocol (RSTP)

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15
Q

QoS methods focus on one of five problems that can affect data as it traverses network cable: p353

A 
Delay
Dropped packets
Error
Jitter
Out-of-order delivery
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16
Q

What is an Access Port. p355

A

An access port belongs to and carries the traffic of only one VLAN. Anything arriving on an access port is simply assumed to belong to the VLAN assigned to the port.

17
Q

Is a 100Mbps or 1000Mbps point-to-point link between two switches, between a switch and router or even between a switch and server and it carries the traffic of multiple VLANs from 1 to 4,094 VLANs at a time. p356

A

Trunk link

18
Q

Is a way of explicitly tagging VLAN information onto an Ethernet frame. p357

A

Inter-Switch Link (ISL)

19
Q

Pretty versatile and can be used on a switch port on router interfaces and on server interface cards to trunk a server. p357

A

ISL routing

20
Q

The voice VLAN used to be called the ________VLAN which allowed it to be overlaid on top of the data VLAN enabling both types of traffic through the same port. p356

A

AUXILIARY

21
Q

Are to manage all configured VLANs across a switched internetwork and to maintain consistency throughout that network. p359

A

VLAN Trunking Protocol (VTP)

22
Q

What are some of the features VTP has to offer: p359

A

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

23
Q

You can configure switches to foward VTP information through trunk ports but not to accept information updates or update their VTP database. p359

A

VTP Transparent mode

24
Q

Requirements for VTP to communicate VLAN information between switches: p359-360

A

The VTP management domain name of both switches must be 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.

25
Q

The three different modes of operation within a VTP domain: p360

A

SERVER
CLIENT
TRANSPARENT

26
Q

You can buy switches that are _______ but you never ever want to do that for an enterprise network. p361

A

Unmanaged

27
Q

Anything you get for an office or larger network absolutely must be a _______ switch. p361

A

Managed

28
Q

Configuring a switch _________ mean you’re not going through the network to configure the device you’re actually using a port such as a console port to configure the switch instead. p361

A

Out-of-band

Network + (20 decks)

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