单项选择题
Why is QoS important in a converged network?（）
A.Because voice data packets must follow a single dedicated path through the network
B.Because voice data packets should arrive quickly and sequentially, and with no lost data
C.Because lost voice-data packets must be retransmitted
D.Because data does not need to arrive intact, so data transfer rates can be variable
相关考题
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单项选择题
A consulting firm is locating 30 consultants at a client site for a nine-month project. What need does the firm have that can be met by a wireless solution?（）
A.Providing a temporary network need
B.Ensuring secure presentations
C.Having freedom of movement within a network range
D.Augmenting an existing network -
单项选择题
If an enterprise customer required A switch for their branch office access layer, which family of switches would the customer likely choose from?（）
A.Cisco SFS 3000/7000
B.Cisco Catalyst 2000 and 3000
C.Cisco Catalyst 4000 and 6000
D.Cisco Nexus -
多项选择题
Which two features characterize controller-based deployments in a WLAN?（）
A.individual device configuration
B.roaming that is facilitated bywirelee-location services
C.coverage of a single area
D.coverage of large areas
E.seamless roaming throughout the network
