多項選擇題Which of the following describe private IP addresses? ()

A.addresses chosen by a company to communicate with the Internet
B.addresses that cannot be routed through the public Internet
C.addresses that can be routed through the public Internet
D.a scheme to conserve public addresses
E.addresses licensed to enterprises or ISPs by an Internet registry organization


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2.多項選擇題Which of the following are types of flow control (Choose three.)()。

A.buffering
B.cut-through
C.windowing
D.congestion avoidance
E.load balancing

3.單項選擇題How should a router that is being used in a Frame Relay network be configured to avoid split horizon issues from preventing routing updates?()

A.Configure a separate sub-interface for each PVC with a unique DLCI and subnet assigned to the sub-interface
B.Configure each Frame Relay circuit as a point-to-point line to support multicast and broadcast traffic
C.Configure many sub-interfaces on the same subnet
D.Configure a single sub-interface to establish multiple PVC connections to multiple remote router interfaces

5.單項選擇題Acknowledgements, sequencing, and flow control are characteristics of which OSI layer()。

A.Layer2
B.Layer3
C.Layer4
D.Layer5
E.Layer6
F.Layer7

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