单项选择题
Which PPP subprotocol negotiates authentication options?（）
A.NCP
B.ISDN
C.SLIP
D.LCP
E.DLCI
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相关考题
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多项选择题
A network administrator issues the ping 192.168.2.5 command and successfully tests connectivity to a host that has been newly connected to the network. Which protocols were used during the test?（）
A. ARP
B. CDP
C. DHCP
D. DNS
E. ICMP -
单项选择题
What is the purpose of Spanning Tree Protocol?（）
A. to prevent routing loops
B. to create a default route
C. to provide multiple gateways for hosts
D. to maintain a loop-free Layer 2 network topology
E. to enhance the functions of SNMP -
单项选择题
What is the function of the CSMA/CD algorithm in Ethernet technologies?（）
A. defines how the media is accessed
B. supplies a token to determine which host has access to the media
C. defines the encoding of electrical signals on the wire
D. determines the preamble bits
