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As an IT technician, you arrive at a customer's home office to troubleshoot problems he's experiencing with his printer. While questioning the customer to get an understanding of his network, you find that he has a new Wi-Fi router that connects wirelessly to a new desktop and two new laptops, in addition to multiple smartphones, tablets, and the network printer. He also has several smart home devices, including security cameras, light switches, door locks, and a thermostat supported by an IoT controller hub. To work on the printer, which type of network will you be interacting with?
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A network in a small geographic
area, like in an office.
Explanation
A LAN is a network in a small geographic area, like in an office.
A WAN is a network whose computers and servers are geographically far apart, but still connected. A PAN [personal area network] is the interconnection of components, such as laptops, mobile devices, printers, mice, keyboards, and other Bluetooth equipped devices, using some form of wireless technology within a personal range [typically 10 meters or less]. A VPN is the extension of a
private network over a shared or public network, such as the internet.
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Defines how a VPN can be
configured in a secure manner using IP.
Framework of open standards that spells out the rules for secure communications.
Not bound to any specific encryption, authentication, security algorithms, or keying technology.
Relies on existing algorithms to implement secure communications.
Works at the network layer, protecting and authenticating IP packets
between participating IPsec devices.
Secures a path between a pair of gateways, a pair of hosts, or a gateway and host.
All implementations of IPsec have a plaintext Layer 3 header, so there are no issues with routing.
Functions over all Layer 2 protocols, such as Ethernet, ATM, or Frame Relay.