單項選擇題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%


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1.多項選擇題Which two of these are recommended practices with trunks?()

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

2.多項選擇題Which two design concerns must be addressed when designing a multicast implementation?()

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

4.單項選擇題You are the Cisco Network Designer in Cisco.com. Which statement is correct regarding NBAR and NetFlow?()

A. NBAR examines data in Layers 1 and 4.
B. NBAR examines data in Layers 3 and 4.
C. NetFlow examines data in Layers 3 and 4.
D. NBAR examines data in Layers 2 through 4.

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