单项选择题

You are the Cisco Network Designer in Cisco.com. Which of these statements is true of clientlessend-user devices？（）

A. They do not receive unique IP addresses.
B. RADIUS or LDAP is required.
C. They are assigned addresses from the internal DHCP pool.
D. Their traffic appears to originate from the originating host network.

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多项选择题WhataretwodesignguidelinesforVoIPnetworks？（）

A. Delay should be no more than 10 ms.
B. Loss should be no more than 1 percent.
C. Jitter should be less then 40 ms.
D. Managed bandwidth is strongly recommended for voice control traffic.

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A. 0.01
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A. activity audit
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A. use ISL encapsulation
B. use 802.1q encapsulation
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A. for multiple ISDN connections
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D. for use by mobile users