单项选择题
For acceptable voice calls， the packet error rate should be no higher than what value？（）
A.0.1%
B.1%
C.2.5%
D.25%
相关考题
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多项选择题
Whichtwoofthesearerecommendedpracticeswithtrunks？（）
A.use ISL encapsulation
B.use 802.1q encapsulation
C.set ISL to desirable and auto with encapsulation negotiate to support ILS protocol negotiation
D.use VTP server mode to support dynamic propagation of VLAN information across the network
E.set DTP to desirable and desirable with encapsulation negotiate to support DTP protocol negotiation -
多项选择题
Whichtwodesignconcernsmustbeaddressedwhendesigningamulticastimplementation？（）
A.only the low-order 23 bits of the MAC address are used to map IP addresses
B.only the low-order 24 bits of the MAC address are used to map IP addresses
C.only the high-order 23 bits of the MAC address are used to map IP addresses
D.only the low-order 23 bits of the IP address are used to map MAC addresses
E.the 0x01004f MAC address prefix is used for mapping IP addresses to MAC addresses
F.the 0x01005e MAC address prefix is used for mapping IP addresses to MAC addresses -
单项选择题
Lafeyette Productions is looking for a new ISP that has improved availability, load balancing, and catastrophe protection. Which type of ISP connectivity solution would be best?（）
A. single run
B. multi-homed
C. stub domain EBGP
D. direct BGP peering
