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单选题
Select a key benefit of DSL.（）
A
TCP packet sizes can be optimized by the router so there is no IPSec or AAL5 padding.
B
The local loop is a dedicated connection for a single subscriber to the DSLAM.
C
Access to the WAN media uses a poll/response mechanism so no two subscribers transmit at the same time.
D
There are no distance requirements from the Central Office (CO).
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更多 “单选题Select a key benefit of DSL.（）A TCP packet sizes can be optimized by the router so there is no IPSec or AAL5 padding.B The local loop is a dedicated connection for a single subscriber to the DSLAM. C Access to the WAN media uses a poll/response mechanism so no two subscribers transmit at the same time. D There are no distance requirements from the Central Office (CO). ” 相关考题
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单选题What is true about joining tables through an equijoin?（）A
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单选题Select a key benefit of DSL.（）A
TCP packet sizes can be optimized by the router so there is no IPSec or AAL5 padding.B
The local loop is a dedicated connection for a single subscriber to the DSLAM. C
Access to the WAN media uses a poll/response mechanism so no two subscribers transmit at the same time. D
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单选题What is a key benefit of using a GRE tunnel to provide connectivity bet ween branch offices and headquarters?（）A
authentication, integrity checking, and confidentialityB
less overheadC
dynamic routing over the tunnelD
granular QoS supportE
open standardF
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