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Router2 manages its attached networks and default gateway; router 3 does the same; router 1 manages all routes within the internal networks. Accessing internal resources If PC2 (172.16.1.100) needs to access PC3 (192.168.1.100), since PC2 has no route to 192.168.1.100 it will send packets for PC3 to its default gateway (router2).
Wi-Fi (/ ˈ w aɪ f aɪ /) [1] [a] is a family of wireless network protocols based on the IEEE 802.11 family of standards, which are commonly used for local area networking of devices and Internet access, allowing nearby digital devices to exchange data by radio waves.
In Internet networking, a private network is a computer network that uses a private address space of IP addresses.These addresses are commonly used for local area networks (LANs) in residential, office, and enterprise environments.
An example of a physical security measure: a metal lock on the back of a personal computer to prevent hardware tampering. Computer security (also cybersecurity, digital security, or information technology (IT) security) is the protection of computer software, systems and networks from threats that can lead to unauthorized information disclosure, theft or damage to hardware, software, or data ...
Edward Joseph Snowden (born June 21, 1983) is an American-Russian former NSA intelligence contractor and whistleblower [4] who leaked classified documents revealing the existence of global surveillance programs.
This timeline of global surveillance disclosures from 2013 to the present day is a chronological list of the global surveillance disclosures that began in 2013.The disclosures have been largely instigated by revelations from Edward Snowden, the former National Security Agency contractor.
The extent to which the media reports responsibly informed the public is disputed. In January 2014, Obama said that "the sensational way in which these disclosures have come out has often shed more heat than light" [19] and critics such as Sean Wilentz have noted that many of the Snowden documents do not concern domestic surveillance. [20]