What is dns

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1. How would you organize a network for an organization that had five departments? Where would you place the servers, both physically and logically? Specify the types of servers (e-mail, web, application, database, etc.) and provide some justification for your decisions?

2. What is DNS? and what is hosts file used for?

3. What actions can a network or systems administrator take to ensure the security of an organization's resources on the LAN? Linux servers and workstations use a service called iptables to implement a firewall. Do some research on this service and discuss how it enhances computer security?

4. Why do we have private network addresses?

Reference no: EM131069730

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