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Q. Describe Network security and Internetworking security?
Network Security - Layers 5-7
- Securing the localized private domain.
Network Administration, File Permissions, Password Protections, User Authorization
Database security
Internetwork Security, Layers 1-3
- Securing information from -untrusted? users on the public Internet or Virtual Private Networks.
Encryption, Packet Filters, Firewalls
What is region? When hierarchical routing is used, the routers are separated into what we will call regions, with every router knowing all the details about how to route packet
flowchart
Quetion: An amplifier increases the peak-to-peak voltage of a signal from 1 V to 20 V. What is the amplifier's gain in dB?
What are the key elements of protocols? The key elements of protocols are a. Syntax It refers to the structure or format of the data that is the order in which they a
Consider a signal x(t) = 10 cos(2πfct + 4 cos 2πfmt). Assume frequency modulation. The message frequency fm = 2:3 kHz. Calculate the modulation index and find the bandwidth when
Telephone companies (Telco's) stated ATM to meet various goals. It gives universal service for all support and subscribers for all users for video, voice and data. It has a single
Virtual Private Network (VPN) adds the features of both public and private networks. It is fixed to single organization and needs public network for connectivity. These connect
Protocol Layering To design structural network protocols the designers organize protocol and use the network hard ware and software to implement the protocol in layers. E
Define the term - Hot swapping The reliability of the machine can be dramatically improved by installing the best components. Hot swapping is a concept through which component
What are different ways of securing a computer network? There are lots of ways to do this. Install reliable and updated anti-virus program on all computers. Make sure firewalls
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