In OSI network architecture, the dialogue control and token management are responsibilities of

The Token-Ring architecture was developed for a more efficient way to determine who should be transmitting at any one time. With Ethernet, collisions may take place, causing the transmitting computers to have to retransmit their data. The use of token guarantees that only one computer can transmit at a time. What happens as the network increases in size? Choose the best answer

A

An additional token is added for every 1,000 nodes

B

The speed of the Token-Ring network must be 16Mbps if the number of nodes is greater then 500

C

The network becomes less efficient

D

After the number of nodes exceeds 550, the Multistation Access Unit must be replaced by the more powerful Hyperstation Unified Bandwidth device

E

The network becomes more efficient

Ethernet and Token-Ring are the two most commonly used network architectures in the world. Jim has heard of the different topologies for networks and wants to choose the architecture that will provide him with the most options. Which of the following would that be? Choose the most correct answer.

A

Token-Ring because it currently can run at both 4Mbps and 16Mbps. This means that it can be used in any topology

B

Ethernet, because it is cabled using fiber-optic cable

C

Token-Ring, because it uses a MAU

D

Ethernet, because it can be set up with most topologies and can use multiple transfer speeds

E

Neither Token-Ring nor Ethernet is the proper choice. Only ARCnet can be used in all topologies

Which country has established new 2+2 ministerial dialogue with India similar to India Japan 2+2 dialogue?

A

Britain

B

Australia

C

USA

D

Israel

The MAC (Media Access Control) address of the network card is used in both Ethernet and Token-Ring networks and is essential for communication. What does MAC provide?

A

A logical address that identifies the workstation

B

A physical address that is randomly assigned each time the computer is started

C

A physical address that is assigned by the manufacturer

D

The logical domain address for the workstation

E

An alias for the computer name

You have configured a Group Policy Object (GPO) for the marketing oranization unit (OU) to prevent users from accessing My Network Places and from running System in Control Panel. You want the Managers Domain Local Group to be able to access My Network Places, but you still want to prevent them from running System in Control Panel. What should you do?

A

Add the Managers group to the access control list of the GPO. Disable the permission of the managers group to read and apply the Group Policy

B

Add the Managers group to the access control list of the GPO. Deny the permission of the managers group to read and apply the Group Policy

C

Create a second GPO in the OU. Add the Managers group to the access control list. Allow the managers group to apply the Group Policy. Deny the Authenticated Users group permission to read and apply th

D

Create a second GPO in the OU. Add the Managers group to the access control list. Allow the managers group to apply the Group Policy. Disable the Authenticated Users group permission to read and apply

E

None of above

The DoD model (also called the TCP/IP stack) has four layers. Which layer of the DoD model is equivalent to the Network layer of the OSI model?

A

Application

B

Host to Host

C

Internet

D

Network Access

Which layers of the OSI model are managed by a network protocol such as Microsoft NetBEUI?

A

network and transport

B

physical and data link

C

transport and session

D

media access control and logical link control

E

None of the above

The network layer, in reference to the OSI model, provide

A

data link procedures that provide for the exchange of data via frames that can be sent and received

B

the interface between the X.25 network and packet mode device

C

the virtual circuit interface to packet-switched service

D

All of the above

E

None of the above

Acknowledgments, sequencing, and flow control are characteristics of which OSI layer?

A

Layer 2

B

Layer 3

C

Layer 4

D

Layer 7

The art of landscape architecture is --- that of architecture itself .

A

almost as old as

B

nearly as old than

C

like that almost

D

as almost old

In OSI network architecture, the dialogue control and token management are responsibilities of

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