What is the primary function of a Network Operating System (NOS)?

• Control access to network resources

• Manage user passwords

• Encrypt data transmissions

• Provide physical hardware

Which of the following is an advantage of a peer-to-peer network model?

• Scalability

• High security

• Centralized control

• Simple configuration

What does the acronym OSI stand for in networking?

• Online Systems Interface

• Operational Systems Integration

• Open Source Integration

• Open Systems Interconnection

Which layer of the OSI model is responsible for data encryption?

• Presentation Layer

• Network Layer

• Transport Layer

• Application Layer

What type of network is typically contained within a small geographical area?

• WAN

• MAN

• LAN

• PAN

In a client-server model, what is the role of the server?

• Request data from clients

• Manage resources and provide services

• Perform troubleshooting

• Control user access

Which protocol is primarily used for sending email?

• DNS

• SMTP

• HTTP

• FTP

What is the main disadvantage of a peer-to-peer network?

• Lack of scalability

• Centralized control

• Complex configuration

• High cost

What does a router do in a network?

• Connects devices within a LAN

• Manages traffic between networks

• Provides wireless access

• Stores user data

Which of the following is a characteristic of a client-server application?

• No need for a server

• Decentralized resource management

• Direct communication between clients

• Centralized resource management