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ADV NWT > WAN Concepts > Flashcards

WAN Concepts Flashcards

1
Q

A permanent dedicated connections are required

A

Leased Line

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2
Q

A point-to-point link is used to provide a pre-established WAN communication path from the customer premises to the provider network

A

Leased Line

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3
Q

Aadvantages of Leased Lines

A

Simplicity, Quality, Availability

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4
Q

Disadvantages of Leased Lines

A

Flexibility, High cost

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5
Q

Use modems and analog dialed telephone lines to provide low capacity and dedicated switched connections

A

Dialup

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6
Q

Suitable when intermittent, low-volume data transfers are needed

A

Dialup

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7
Q

Advantages of Dialup

A

Simplicity, Availability, Low implementation cost

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8
Q

Disadvantages of Dialup

A

Low data rates and long time needed to form connection

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9
Q

Replaces traditional Frame Relay and ATM WAN links

A

Ethernet WAN

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10
Q

Uses fibre-optics cabling

A

Ethernet WAN

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11
Q

Goes by, MetroE, EoMPLS, VPLS

A

Ethernet WAN

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12
Q

Advantages of Ethernet WAN

A

Reduced expenses and administration
Easy integration with existing networks
Enhanced business productivity

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13
Q

Dedicated virtual connection for voice or data between a sender and a receiver

A

Circuit Switching

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14
Q

Splits traffic data into packets that are routed over a shard network

A

Packet Switching

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15
Q

A circuit switching technology that enables local loop of a PTSN to carry digital signals, resulting in higher capacity switched connections

A

Integrated Services Digital Network ISDN

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16
Q

Types of ISDN interfaces

A

Basic Rate Interface (BRI)

Primary Rate Interface (PRI)

17
Q

Connect multiple sites using PVCs which can carry both voice and data traffic

A

Frame Relay

18
Q

Capable of transferring voice, video, and data through private and public networks

A

Asynchronous Transfer Mode (ATM)

19
Q

A multiprotocol high-performance WAN technology that directs data from one router to the next. Support wide range of WAN technologies

A

Multiprotocol Label Switching (MPLS)

20
Q

A private WAN using satellite communications,

A

VSAT

21
Q

A small satellite dish used to create a private WAN that provides connectivity to remote locations

A

VSAT

22
Q

Always-on connection technology that uses existing twisted-pair telephone lines to transport high -bandwidth data and provides IP services to subscribers

A

DSL

23
Q

Converts an Ethernet signal from the user device to DSL signal, which is transmitted to the central office

A

DSL Modem

24
Q

Advantages of DSL

A

Uses existing telephone lines

Bandwidth from individual user to the ISP is not affected by no. of subscribers

25
Q

Provide an always-on connection and a simple installation

A

Cable modem

26
Q

A subscriber connects a computer or LAN router to the cable
modem, which translates the digital signals into the an existing
cable television network.

A

Cable

27
Q

Advantages of Cable

A

Easy installation

28
Q

Disadvantages of Cable

A

All local subscribers share the same cable bandwidth.

Available bandwidth may drop below the expected rate with the increase of new subscribers

29
Q

Wireless technology uses the unlicensed radio spectrum to send and receive data . What are the 2 types of wireless technology ?

A

Municipal Wi-Fi

WiMAX

30
Q

A wireless WAN technology used to connect users and remote locations where no other WAN access technology is available

A

3G/4G/5G

LTE ( Long Term Evolution)

31
Q

What is needed when a teleworker or a remote office uses a broadband service to access corporate WAN over the internet

A

VPN

32
Q

An encrypted connection between private networks over a public network, such as the internet

A

VPN

33
Q

Benefits of VPNs

A

Cost savings
Security
Scalability
Compatibility with broadband technology

34
Q

Types of VPN access

A

Site-to-site VPNs

Remote-access VPNs

ADV NWT (12 decks)

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