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CCNA EXAMS: Switching > CCNA Chapter 2: Connecting to the WAN > Flashcards

CCNA Chapter 2: Connecting to the WAN Flashcards

1
Q

Which WAN technology is cell-based and well suited to carry voice and video traffic?

A

ATM

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2
Q

Which WAN connectivity method would be used in a remote location where there are no service provider networks?

A

VSAT.

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3
Q

Which network scenario will require the use of a WAN?

A

Employees need to connect to the corporate email server through a VPN while traveling.

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4
Q

Which two technologies use the PSTN network to provide an Internet connection? (Choose two.)

A
  1. ISDN

2. dailup

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5
Q

Which geographic scope requirement would be considered a distributed WAN scope?

A

many-to-many

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6
Q

What are two advantages of packet switching over circuit switching? (Choose two.)

A
  1. The communication costs are lower.

2. Multiple pairs of nodes can communicate over the same network channel.

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7
Q

Which connectivity method would be best for a corporate employee who works from home two days a week, but needs secure access to internal corporate databases?

A

VPN

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8
Q

Match the type of WAN device or service to the description:

  1. CPE
  2. Local Loop
  3. DTE
  4. DCE
A
  1. Device and inside wiring that are located on the enterprise edge and connect to a carrier.
  2. A physical connection from the customer to the service provider POP
  3. Customer devices that pass the data from a customer network for transmission over the WAN
  4. device that provide an interface for customers to connect to within the WAN cloud
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9
Q

Which wireless technology provides Internet access through cellular networks?

A

LTE

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10
Q

What is a requirement of a connectionless packet-switched network?

A

Full addressing information must be carried in each data packet

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11
Q

A customer needs a WAN virtual connection that provides high-speed, dedicated bandwidth between two sites. Which type of WAN connection would best fulfill this need?

A

Ethernet WAN

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12
Q

Which WAN technology establishes a dedicated constant point-to-point connection between two sites?

A

leased lines

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13
Q

A company needs to interconnect several branch offices across a metropolitan area. The network engineer is seeking a solution that provides high-speed converged traffic, including voice, video, and data on the same network infrastructure. The company also wants easy integration to their existing LAN infrastructure in their office locations. Which technology should be recommended?

A

Ethernet WAN

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14
Q

A home user lives within 10 miles (16 kilometers) of the Internet provider network. Which type of technology provides high-speed broadband service with wireless access for this home user?

A

WiMAX

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15
Q

Which two devices are needed when a digital leased line is used to provide a connection between the customer and the service provider? (Choose two.)

A
  1. DSU

2. CSU

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16
Q

Match the connectivity type to the description:

  1. uses traditional video network
  2. uses traditional phone network
  3. set up by a city to provide free Internet access
  4. slow access (upload speed is about one-tenth download speed)
A
  1. Cable
  2. DSL
  3. Municipal Wi-Fi
  4. Satellite internet
17
Q

What is a feature of dense wavelength-division multiplexing (DWDM) technology?

A

It enables bidirectional communications over one strand of fiber.

18
Q

What is the recommended technology to use over a public WAN infrastructure when a branch office is connected to the corporate site?

A

VPN

19
Q

A small company with 10 employees uses a single LAN to share information between computers. Which type of connection to the Internet would be appropriate for this company?

A

a broadband service, such as DSL, through their local service provider

20
Q

What is a long distance fiber-optic media technology that supports both SONET and SDH, and assigns incoming optical signals to specific wavelengths of light?

A

DWDM

21
Q

A new corporation needs a data network that must meet certain requirements. The network must provide a low cost connection to sales people dispersed over a large geographical area. Which two types of WAN infrastructure would meet the requirements? (Choose two.)

A
  1. public infrastructure

2. Internet

22
Q

What are two common high-bandwidth fiber-optic media standards? (Choose two.)

A
  1. SDH

2. SONET

CCNA EXAMS: Switching (10 decks)

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