多选题At which layers of the OSI model do WANs operate?（）Aapplication layerBsession layerCtransport layerDnetwork layerEdatalink layerFphysical layer

题目

多选题

At which layers of the OSI model do WANs operate?（）

application layer

session layer

transport layer

network layer

datalink layer

physical layer

参考答案和解析

正确答案： C,E

解析：暂无解析

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相似问题和答案

第1题：

In which of the following layers of the OSI model does the TCP protocol operate?()

A.Session

B.Network

C.Data link

D.Transport

参考答案：D

第2题：

A crossover cable is MOST commonly associated with which of the following layers of the OSI model?()

A.Session

B.Application

C.Network

D.Physical

参考答案：D

第3题：

The X.25 standard specifies three layers of functionality.Which layers of the OSI model correspond to the X.25 layers?

A．the Physical, Network, and Session Layers

B．the Physical, Data Link, and Network Layers

C．the Physical, Data Link, and Transport Layers

D．the Physical, Session, and Presentation layers

正确答案：B

第4题：

At which layers of the OSI model do WANs operate?()

A.application layer

B.session layer

C.transport layer

D.network layer

E.datalink layer

F.physical layer

参考答案：E, F

第5题：

Which three of the following OSI model layers also belong to the TCP／IP model?()

A. The application layer

B. The session layer

C. The data link layer

D. The transport layer

E. The network interface layer

F. The physical layer

参考答案：A, D, E

第6题：

Which of the following OSI model layers is used for logical addressing?()

A. Physical

B. Transport

C. Network

D. Data link

参考答案：C

第7题：

Which of the following layers of the TCP／IP model most closely corresponds to the network layer of the OSI model?()

A.Application

B.Internet

C.Transport

D.Network

E.Data Link

参考答案：B

第8题：

As a CCNA candidate, you must know the various layers of the OSI model. At which layers of the OSI Model do Wide Area Networks operate in? (Choose two)

A. Physical Layer

B. Datalink Layer

C. Network Layer

D. Session Layer

E. Transport Layer

F. Presentation Layer

G. Application Layer

正确答案：AB
A,B 解析：Explanation:
A WAN is a data communications network that covers a relatively broad geographic area and that often uses transmission facilities provided by common carriers, such as telephone companies. WAN technologies generally function at the lower two layers of the OSI reference model: the physical layer and the data link layer as shown below.

Note: Occasionally WAN's would also be considered to operate at layer 3, but since this question asked for only 2 chopices layers 1 and 2 are better choices.

第9题：

In the OSI model, at which layers do WANs operate at?()

A.Applicationlayer

B.Presentationlayer

C.Sessionlayer

D.Transportlayer

E.Networklayer

F.Datalinklayer

G.Physicallayer

参考答案：F, G

第10题：

At which layers of the OSI model do WANs operate (Choose two.)()。