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31 Days to CCNA > Day 7 - WAN > Flashcards

Day 7 - WAN Flashcards

1
Q

What are the 4 basic WAN topology options?

A

Point-to-Point
Hub-and-Spoke
Full mesh
Dual homed

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2
Q

Solve for the definition of WAN topology:

Typically uses a dedicated leased line connection, such as a T1 or E1

A

Point-to-Point

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3
Q

Solve for the definition of WAN topology:

Offers a single homed, point-to-multipoint topology in which a single interface on the hub router can be shared with multiple spoke routers through the use of virtual routers

A

Hub-and-Spoke

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4
Q

Solve for the definition of WAN topology:

Gives each router a connection to every other router. Requires a large number of virtual interfaces

A

Full mesh

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5
Q

Solve for the definition of WAN topology:

Provides redundancy for a single-homed hub-and-spoke topology by providing a second hub to connect to spoke routers

A

Dual-homed

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6
Q

Solve for the WAN topology based on the picture

A

Dual-homed

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7
Q

Solve for the WAN topology based on the picture

A

Full mesh

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8
Q

Solve for the WAN topology based on the picture

A

Hub-and-Spoke

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9
Q

Solve for the WAN topology based on the picture

A

Point-to-Point

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10
Q

What are the top level main connection options for a WAN?

A

Private
Public

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11
Q

For a private WAN link, what are the two connection category options?

A

Dedicated
Switched

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12
Q

For a public WAN link, what is the connection category option?

A

Internet

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13
Q

What is the connection option for a dedicated WAN link?

A

Leased Line

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14
Q

What are the two connection options for a Private Switched WAN link?

A

Circuit-Switched
Packet-Switched

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15
Q

What are the connection options for a Circuit-Switched Private connection?

A

PSTN (Analog)
ISDN

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16
Q

What are the connection options for a Packet-Switched Private connection?

A

Metro Ethernet
Frame Relay
x.25
ATM

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17
Q

What are the connection options for a public internet broadband or VPN connection?

A

DSL
Cable
Wireless

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18
Q

What is the standard connection for a leased line in the US?

A

T3

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19
Q

What leased line type is 1.544Mbps in speed?

A

T1

20
Q

What leased line type is 44.736 Mbps in speed?

A

T3

21
Q

What leased line type is 155.54 Mbps in speed?

A

OC-3

22
Q

What are the two main types of Circuit-Switched connections?

A

Analog (PSTN)
ISDN

23
Q

What two types of ISDN interfaces exist?

A

Basic rate interface (BRI)
Primary rate interface (PRI)

24
Q

What are the 4 most common packet switching technologies used today?

A

Metro Ethernet
Frame Relay
x.25
ATM

25
Q

Solve for the definition of a packet-switched technology:

This technology uses IP aware ethernet switches in the service provider’s network cloud to offer enterprises converged voice, data, and video services at ethernet speeds

A

Metro Ethernet

26
Q

Solve for the definition of a packet-switched technology:

Can carry any payload including IPv4 and IPv6, ethernet, ATM, DSL and frame relay traffic. Used labels inside the service providers network to identify paths between distant routers instead of between endpoints. This technology actually routes IPv4 and IPv6 packets, but everything else is switched

A

MPLS (Multiprotocol label switching)

27
Q

What does DSL stand for?

A

Digital subscriber line

28
Q

What are 4 wireless technologies that allows users to connect to the internet from almost any location?

A

WiMAX
Municipal Wifi
Satellite Internet
Cellular

29
Q

Solve for the description of the WAN link connection type:

Point-to-point connection between two LANs

A

Leased Line

30
Q

Solve for the description of the WAN link connection type:

Dedicated circuit path created between two endpoints. Most notably, dial up

A

Circuit switching

31
Q

Solve for the description of the WAN link connection type:

Devices transporting packets via a shared single point-to-point or point-to-multipoint link across a carrier internetwork

A

Packet switching

32
Q

Solve for the description of the WAN link connection type:

Connectionless packet switching using the internet as the WAN infrastructure

A

Internet

33
Q

What is the standard used in North America for service provider optical fiber networks?

A

SONET

34
Q

What does PPPoE stand for and what deployments is it typically used for?

A

Point to Point Protocol over Ethernet normally used in DSL deployments

35
Q

What does DWDM stand for and what does it do?

A

Dense Wavelength Division Multiplexing

Combines multiple optical signals into one signal transmitted over a single fiber strand

36
Q

____________ allows more capacity to be added to existing infrastructure without expensive upgrades and allows more capacity to be added to existing infrastructure

A

DWDM (Dense Wavelength Division Multiplexing)

37
Q

What does FTTx stand for?

A

Fiber to the X:

Home
Premises
Building
Neighborhood

38
Q

Identify the topology based on the scenario:

Simplistic, centralized security policy with one router being the hub that all traffic flows through for other sites

A

Hub and Spoke

39
Q

Identify the topology based on the scenario:

Removes the single point of failure by adding another hub to the topology, yet all traffic from other sites still flow these centralized hubs

A

Redundant Hub and Spoke

40
Q

Identify the topology based on the scenario:

All sites have a direct path to every other site resulting in optimal traffic flow

A

Full Mesh

41
Q

Identify the topology based on the scenario:

Similar to Hub and Spoke but one spoke site has connectivity to another through a leased line rather than having to go to the hub to get where it needs to go

A

Partial Mesh

42
Q

Identify this internet redundancy option:

Single service provider router to a customer router

A

Single Homed

43
Q

Identify this internet redundancy option:

Two service provider routers to two customer routers

A

Dual Homed

44
Q

Identify this internet redundancy option:

Two separate service providers and their routers going to the same customer’s routers

A

Multi-homed

45
Q

Identify this internet redundancy option:

Full mesh of two separate service providers going to two customer routers

A

Dual Multi-homed

31 Days to CCNA (27 decks)

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