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Security risks present on the networks
Lots of risks are present everywhere on Internet as well as on Intranet, if it is not known what is being done. Every day a number of servers get connected to the global community but it is less than one percent companies who serious thinks about the security issues. A study of security of web servers reveal that out of 2,000 high-profile web servers consisting of various kinds such as commerce servers, banks, industries, government and so on, only three companies noticed the breaches.
What are the basic LAN topologies? The three simple LAN topologies that are combined to shape any practical topology are called as basic LAN topologies. They are, Bus Topology
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
Q. Show Data link and Physical vs Subnet? - Data link layer The function of the Data Link Layer is -offers for the control of the physical layer and detects and possib
Connection oriented
briefly explain how firewalls protect networks
Extranets can also be utilized to link an intranet to the Internet in order that remote offsite access can be built into a company's intranet through an authorized individual. It c
Addressing Complicated addressing scheme because there may be intermediate stations (APs), identified by flags
When the signal hits to each other, collision accord.
If the number of incoming clients invokes exceeds the number of processes in a server class, the TP Monitor might be dynamically start new ones and this is known as Load balancing.
Distribution of DNS 1.By centralized data base The information contained in the domain name space must be stored. A simple design or DNS would have one DNS server that co
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