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21 Cards in this Set
- Front
- Back
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What is a disadvantage of leased lines? |
high cost |
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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.) |
public infrastructure Internet |
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A new corporation needs a data network that must meet certain requirements. The network must be fast and reliable to transmit secure video conferencing calls between two branches. If cost is not a consideration, which two types of WAN infrastructure would best meet the requirements? (Choose two.) |
private infrastructure dedicated |
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Which public WAN technology provides security by using encrypted tunnels over Internet connections? |
VPN |
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What are two common types of circuit-switched WAN technologies? (Choose two.) |
PSTN ISDN |
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A construction firm is building a power plant at a remote and isolated mine site and needs to connect the data network of the plant to the corporate network. Which public technology is the most suitable to meet the connection needs? |
satellite Internet |
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Which one of the WAN technologies is inadequate for video traffic but operates adequately for voice traffic? |
ISDN BRI |
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customer premises equipment |
devices and inside wiring that are located on the enterprise edge and connect to a carrier link |
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demarcation point |
a point that is established in a building or complex to separate customer equipment from service provider equipment. |
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data terminal equipment |
customer devices that pass the data from a customer network or host computer for transmission over the WAN |
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data communications equipment |
devices that put data on the local loop |
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Which medium do service providers use to transmit data over WAN connections with SONET, SDH, and DWDM? |
fiber optic |
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Branch office networks and corporate headquarter networks can be connected together using _________ VPN connections through the Internet infrastructure. |
site to site |
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What is a characteristic of end-to-end data transmission in a packet-switched network? |
A file may traverse multiple paths to reach the destination. |
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Which two WAN infrastructure services are examples of private connections? (Choose two.) |
T1/E1 Frame Relay |
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ISDN |
when additional capacity is needed on a lease line |
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dialup |
when intermittent, low-volume data transfers are needed |
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leased line |
when permanent point-to-point dedicated connections are required |
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VSAT |
when connectivity in a remote location is needed and there are no service providers that offer WAN services. |
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Which statement correctly describes a WAN technology? |
MPLS can be used to deliver any type of packet between sites. |
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Which network scenario will require the use of a WAN? |
Employees in the branch office need to share files with the headquarters office that is located in a separate building on the same campus network. |
