The network is:

• a set of PCs only connected to each others.

• Two PCs connected to each other to share data.

• A set of nodes connected to others to share Data.

• none of the above.

………… is the topology which is used in the network.

• Ring

• Mesh

• Bus

• Star

OSI is stand for:

• Open Standards interconnection

• Open System interconnection

• Organization system internet

• Organization standards internet

The best topology in the LAN is:

• Star

• Ring

• Mesh

• Bus

LAN stands for :

• Line Area Node

• Local Area Network

• Local Area Node

• None of the above

WAN is used :

• in the same Building

• between tow building

• Between cities & Countries

• in the same city

The disadvantage of Mesh Topology is:

• easy to build

• more expensive

• more cheap

• difficult to implement when the number of nodes is very large.

Public IP Address is:

• used in side the network

• unpaid & free for training usage

• paid & used outside the network

• none of the above

In the OSI Model the first layer in the sender side is:

• Application

• Physical

• Network

• Transport

Switch is working in the layer:

• Application

• Network

• Data Link

• Session