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Phân tích tư tưởng của nhân dân qua đoạn thơ: Những người vợ nhớ chồng… Những cuộc đời đã hóa sông núi ta trong Đất nước của Nguyễn Khoa Điềm
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1.Connect devices that are separated by a broader geographical area.2.Use the services of carriers, such as telephone companies, network providers…3.Use serial connections.A VPN is an encrypted connection between private networks over a public network such as the Internet. Instead of using a dedicated Layer 2 connection such as a leased line, a VPN uses virtual connections called VPN tunnels, which are routed through the Internet from the private network of the company to the remote site or employee host.Metro Ethernet is a rapidly maturing networking technology that broadens Ethernet to the public networks run by telecommunications companies.•IP-aware Ethernet switches enable...
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Chapter 1 – Introduction to WANs
