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ISDN1 > Ch. 9 Implementing Virtual LANs > Flashcards

Ch. 9 Implementing Virtual LANs Flashcards

0
Q

From one perspective a ____ includes all the user devices servers switches routers cables and wireless access points in one location

A

LAN

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1
Q

_____ is a method to support multiple VLAMs allowing traffic from those VLAMs to cross a single link, either using the Cisco ISL protocol with IEEE 802.1 Q protocol

A

Trunking

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2
Q

A _____ includes all devices in the same broadcast domain

A

LAN

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3
Q

A _____ _____ includes a set of all LAN connected devices so that when any of the devices send a broadcast frame, all the other devices get a copy of the frame

A

Broadcast domain

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4
Q

Without _____ a switch considers all it’s interfaces to be in the same broadcast them

A

VLAN

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5
Q

With _____ a switch can configure some interfaces into one broadcast a main summits another creating multiple broadcast domains

A

VLANs

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6
Q

Creating smaller ____ has a number benefits including reduce CPU overhead reduced security risks improve security for hosts more flexible design quicker problem-solving and reducing the workload for spamming tree protocol

A

VLANs

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7
Q

When using VLANs in networks that have multiple interconnected switches, the switches need to use VLAN _______ on the links between the switches

A

Trunking

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8
Q

VLAN trunking causes the switches to use a process called VLAN ______ by which the sending switch adds another Header to the frame before sending it over the trunk

A

Tagging

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9
Q

VLAN ID

A

VLAN identifier

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10
Q

The use of _____ allows switches to pass frames from multiple VLANs over a single physical connection by adding a small header to the ethernet frame

A

Trunking

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11
Q

Cisco supported two different trunking protocols over the years ______ and ______

A

ISL (inter-switch link) and 802.1Q

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12
Q

ISL

A

Inter-switch link

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13
Q

Today the more popular trucking protocol is _____

A

802.1Q

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14
Q

VTP

A

VLAN trunking protocol

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15
Q

The rules for which switches can use extended range VLANs depends on the configuration of the ______

A

VTP (VLAN trunking protocol

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16
Q

802.1Q defines one special VLAN ID on each trunk as the _______ which is defaulted When A side sees a frame with no header

A

Native

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17
Q

The 802.1Q native VLAN provide some interesting functions, mainly to support connections to devices that do not understand

A

Trunking

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18
Q

Some LAN switches forward data based on layer two logic, which go by the name _____ __ _____

A

Layer 2 switch

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19
Q

Some switches can do functions like a router using additional logic defined by layer 3 protocols, these switches go by the name _____ _____ or layer 3 switch

A

Multilayer switch

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20
Q

When including VLANs and I campus LAN design, the devices in a VLAN need to be in the same _____

A

Subnet

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21
Q

layer 2 switches will not forward data between two

A

VLANs

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22
Q

The job forwarding data into and out of a VLAN fall to a ______

A

Router

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23
Q

Instead of switching layer 2 ethernet frames between two VLANs, the network must route layer ____ packets between two subnetwork

24
Q

PPS

A

Packets per second

25
Q

When the router has a single physical link connected to the LAN switch, this design is sometimes called ____-___-___-____

A

Router on a stick

26
Q

VTP

A

VLAN Trunking Protocol

27
Q

Each switch can use one of three ____ modes: server client or Transparent

28
Q

DTP

A

Dynamic trunking protocol

29
Q

Trunking administrative mode options _____ always act as an access (non-trunk) port

30
Q

Trunking administrative mode options

______ always act as a trunk port

31
Q

Trunking administrative mode options
____ ____ initiates negotiation messages and responds to negotiation messages to dynamically choose whether to start using trunking

A

Dynamic desirable

32
Q

Trunking administrative mode option
_____ ______ passively wait to receive trunk negotiation messages, At which point the switch will respond to negotiate whether to use trunking

A

Dynamic auto

33
Q

The _______ VLAN list feature provides a mechanism for engineers administratively disable a VLAN from a trunk

34
Q

If a _____ does not know that a VLAN exists the switch will not forward frames in that VLAN over any interface

35
Q

A VLAN can exist in a ______ configuration, but also be administratively shut down

A

Switch’s

36
Q

A _____ includes all devices in the same broadcast domain

37
Q

Without ______ a switch considers all it’s interfaces to be in the same broadcast on

38
Q

With _____ switch can configure some interfaces into one broadcast domain some into another creating multiple broadcast domains. These individual broadcast domains created by the switch are called_____

39
Q

Configuring ____ on a single switch requires very little effort: you simply configure each port to tell it the VLAN number to which the port belongs

40
Q

When using VLANs in networks that have multiple interconnected switches, the switches must use VLAN _____ on the links between switch

41
Q

VLAN trunking causes the switches to use a process called VLAN _____ by which the sending switch adds another header to the frame before sending it over the trunk

42
Q

The extra trunk header includes a VLAN ____ field so that the sending switch can associate the frame with a particular VLAN and the receiving switch can then know what VLAN each frame belongs to

43
Q

802.1Q defines one special VLAN ID on each trunk as the_____ VLAN (defaulting to VLAN1)

44
Q

A switch that also does routing combines layer 2 and layer 3 protocols these switches are also known as _____

A

Multilayer switches

45
Q

To configure a new VLAN first use the____ vlan-id global configuration command to create the VLAN and move the user into VLAN configuration mode

46
Q

Use the ____ Name VLAN subcommands to list a name for the VLAN

47
Q

For each access interface follow these steps first use the _____ command to move into interface configuration mode for each desired interface

48
Q

Use the ____ _____ _____ ID number interface subcommand to specify the VLAN number associated with that interface

A

Switch port access vlan

49
Q

To disable trunking on that same interface, ensuring that the interface is an access interface use the ____ ____ ____ interface subcommand

A

Switchport mode access

50
Q

____ Is a Cisco proprietary tool on Cisco switches that advertises each VLAN configured in one switch so that all the other switches in the campus learn about the VLAN

A

VTP (VLAN trunking protocol)

51
Q 
In a LAN to the following terms best equates to the term VLAN
Collision domain
Broadcast domain
Subnet
Single switch
Trunk
A

Broadcast domain

52
Q

Imagine a switch with three configured VLANs, how many IP subnets are required assuming that all hosts and all VLANs want to use TCP/IP?
0
1
2
3
You can’t tell from the information provided

53
Q

Switch SW1 send a frame to switch SW2 using 802.1Q trunking. Which of the answers describes how SW1 changes are adds to the ethernet frame before forwarding the frame to SW2
Insert a 4-byte header and does change the Mac address

Inserts a 4-byte header and does not change the Mac address

Encapsulates the original frame behind an entirely new ethernet Header

None of the answers are correct

A

Inserts a 4-byte header is not change the Mac address

54
Q

For an 802.1Q trunk between two ethernet switches, which answer most accurately defines which frames do not include an 802.1Q header?

Frames the native VLAN (only one)
Frames in the extended VLANs
Frames in VLAN 1 (not configurable)
Frames and all native VLANs (multiple allowed)

A

Frames in the native VLAN (only one)

55
Q 
Imagine that you are told that switch 1 is configured with the dynamic auto parameter for trucking on it's Fa0/5 interface, which is connected to switch 2. You have to configure switch 2. Which of the following settings for trunking could allow trunking to work (choose two) 
Trunking turned on
Dynamic Auto 
Dynamic desirable
Access
None of the other answers are correct
A

Trucking turned on

Dynamic desirable

56
Q

A Switch has just arrived from Cisco. The switch has never been configured with any VLANs but VCP has been disabled. An Engineer gets into configuration mode and issues the vlan 22 command, followed the name Hannah’s-VLAN command. Which of the following are true (choose two answers)
VLAN is listed in the output of the show vlan brief command
VLAN is listed in the output of the show running – config command
VLAN 22 is not created by this process
VLAN does not exist in that switch until at least one interface is assigned to that VLAN

A

VLAN 22 is listed in the output of the show vlan brief command
VLAN 22 is listed in the output of the show running – config command

57
Q 
Which of the following commands identify switch interfaces as being trunking interfaces: interfaces that currently operate as VLAN trunks? (Choose two answers)
Show interfaces
Show interfaces switchport
Show interfaces trunk
Show trunks
A

Show interfaces switchport

Show interfaces trunk

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