單項(xiàng)選擇題Which statement is true, as relates to classful or classless routing?()

A. Automatic summarization at classful boundries can cause problems on discontinuous subnets
B. EIGRP and OSPF are classful routing protocols and summarize routes by default
C. RIPv1 and OSPF are classless routing protocols
D. Classful routing protocols send the subnet mask in routing updates


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D. Cisco Adaptive Security Appliance

2.單項(xiàng)選擇題At which layer of the OSI model is RSTP used to prevent loops?()

A. data link
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4.單項(xiàng)選擇題which command allows you to verify the encapsulation type CISCO OR IETF for a frame relay link?()

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5.單項(xiàng)選擇題What is the alternative notation for the IPV6 address B514:82C3:0000:0000:0029:EC7A:0000:EC72?()

A. B514:82C3:0029::EC7A:0000:EC72
B. B514:82C3:0029:EC7A:EC72
C. B514:82C3::0029:EC7A:0:EC72
D. B514:82C3::0029:EC7A:EC72

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