单项选择题
The Testking network is implementing dialup services for their remote employees.Testking uses several different Layer 3 protocols on the network. Authentication ofthe users connecting to the network is required for security. Additionally, some employees will be dialing long distance and will need callback support.Which protocol is the best choice for these remote access services?（）
A.802.1
B.Framerelay
C.HDLC
D.PPP
E.SLIP
F.PAP
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相关考题
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多项选择题
Which dynamic routing protocol should be recommended for the Testking networkshown in the graphic above?（）
A. OSPF
B. RIP version 1
C. RIP version 2
D. IGRP
E. EIGRP -
多项选择题
A brand new network application is required for the Acme Company, and they are considering the use of a connectionless service. What are the characteristics of a connectionless service?（）
A. It uses a Reliable transport mechanism.
B. It uses a Non-reliable transport mechanism
C. It is less bandwidth-intensive than connection oriented services
D. it uses handshaking -
单项选择题
The Testking Corporation consists of the head office in New York with its regional offices in: Chicago, Detroit, Philadelphia, Toronto, and Atlanta. These offices need to be connected in a WAN, and Testking wishes to do this via a hub and spoke arrangement that will utilize packet-switched technology.Which one of the WAN technologies below would be the best choice for Testking?（）
A. ISDN
B. Wireless
C. Frame Relay
D. T1 leased line
E. ATM
F. VPN
