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Questions and Answers
What is the main difference between public and private IP addresses?
What is the main difference between public and private IP addresses?
- Public IP addresses are static, while private IP addresses are dynamic.
- Public IP addresses are registered on the internet, while private IP addresses are used internally within a network. (correct)
- Public IP addresses are free, while private IP addresses have to be paid for.
- Public IP addresses are more secure, while private IP addresses are easily traceable on the internet.
How are private IP addresses assigned?
How are private IP addresses assigned?
- Private IP addresses are selected by the user when setting up a device on the network.
- Private IP addresses are assigned by a router using a service known as DHCP. (correct)
- Private IP addresses are assigned by an Internet Service Provider (ISP).
- Private IP addresses are manually assigned by the network administrator.
Which class of private IP addresses starts with '192'?
Which class of private IP addresses starts with '192'?
- Class A
- Class C (correct)
- Class B
- No class starts with '192'
Why do private IP addresses need to be translated to public IP addresses to access the internet?
Why do private IP addresses need to be translated to public IP addresses to access the internet?
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Who assigns public IP addresses?
Who assigns public IP addresses?
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Why are public IP addresses not secure compared to private IP addresses?
Why are public IP addresses not secure compared to private IP addresses?
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To ensure privacy and security on the internet, what is recommended?
To ensure privacy and security on the internet, what is recommended?
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Study Notes
- IP address is a numerical identifier for a computer or device on a network.
- There are two types of IP addresses: public and private.
- Public IP addresses are registered on the internet and provide access to the worldwide web.
- Private IP addresses are used internally within a home or business network and are not registered on the internet.
- Private IP addresses need to be translated to public IP addresses in order to access the internet.
- Private IP addresses are assigned by a router using a service called DHCP.
- There are three classes of private IP addresses: A, B, and C, with different ranges.
- Class A private IP addresses start with 10, class B with 172, and class C with 192.
- Public IP addresses are unique, while private IP addresses are not necessarily unique.
- Public IP addresses are assigned by an internet service provider (ISP) and have to be paid for, while private IP addresses are free.
- Public IP addresses are not secure as they can be traced on the internet, while private IP addresses are more secure as they are used internally and cannot be traced outside of their own network.
- To ensure privacy and security on the internet, it is recommended to use a VPN to hide your public IP address.
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