英语+网络=请进16.WhatisthecorrectorderofthelayersoftheOSImodel?A.physical,datalink,network,transport,session,presentation,applicationB.physical,session,datalink,network,application,transport,presentationC.physical,datalink,network

Question

英语+网络=请进
16.What is the correct order of the layers of the OSI model?
A.physical,data link,network,transport,session,presentation,application
B.physical,session,data link,network,application,transport,presentation
C.physical,data link,network,session,transport,presentation,application
D.physical,data link,network,session,application,transport,presentation
17.Which best describes the function of the physical layer?
A.Defines the electrical and functional specifications for the link between end systems
B.Provides reliable transit of data across a physical link
C.Provides connectivity and path selection between two end systems
D.Concerned with physical addressing,network topology and media access
18.Which layer of the OSI model is responsible for reliable network communication between end nodes and provides mechanisms for the establishment,maintenance,and termination of virtual circuits,transport fault detection and recovery,and information flow control?
A.physical layer
B.data link layer
C.network layer
D.transport layer
19.Which best describes the function of the presentation layer?
A.responsible for reliable network communication between end nodes
B.concerned with data structures and negotiation data transfer syntax
C.provides connectivity and path selection between two end systems
D.manages data exchange between layer entities
20.Packets are encapsulated into frames at which layer of the OSI model?
A.data link
B.network
C.transport
D.session

Answer 1

修改后的答案如下:
16.A
17.A
18.D
19.B
20.A