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Q. Show VPNs Security and the Internet Model?
- VPN's Security and the Internet Model
- Application layer - provide for each application protocol (other layers may be left vulnerable)
- Transport layer - difficult to change existing protocols
- Network layer - IPsec (additional security for IP)
- Data Link layer - does not provide end-to-end security
What are some drawbacks of implementing a ring topology? In case one workstation on the network varies a malfunction, it can bring down the whole network. Another drawback is t
PPTP use for encryption and authentication
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"SAP" is used by the Cisco IOS for which encapsulation types? Ans) Three types:- Ethernet_802.2 Token-Ring FDDI_802.2
How LANs connected to Internet. Doubling every 18 months means factor of four gains in 3 years. In 9 years, gain is then 43 or 64, which leads to 6.4 billion hosts. My intuitio
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Q. Unshielded Twisted Pair - transmission media? - A most common kind suitable for both voice and data transmission - Categories are determined by chain quality - Cat 3 c
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Define in details about computer networks ? Discuss a variety of types of networks topologies in computer network. Also discuss a variety of costs and disadvantage of all topology
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