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Your friend has a small design shop with Windows NT 4.0, Windows 2000, and Windows XP workstations. He has one older Windows NT computer acting as a file server and a Linux computer running as a firewall on the DSL line. Previous to the current network setup, your friend's shop used what he assumed was the default Windows scheme- NetBIOS over NetBEUI. Now a new client wants your friend's shop to log on to its WINS server so they can share resources more directly. With security in mind, what do you tell your friend to do? Why? What are his (and his client's) alternatives?
Write down the main components of good security policy? Write down some of the most common attacks, and how can the network be protected against these attacks?
Cookies are Us runs a series of 100 cookie stores across the Midwestern United States and central Canada. At the end of each day, the stores express-mail a CD
Compute in GF (28): ( x 4+ x +1) / ( x 7+ x 6+ x 3+ x 2) , where the irreducible polynomial is the one used by AES, P ( x )= x 8+ x 4+ x 3+ x +1.
While working in an economy, it has a separate identity but cannot operate insolently.
Determine the maximum value of L such that TCP sequence numbers are not exhausted? Recall that TCP sequence number filed has four bytes.
With the advent and increasing popularity of social networking, individuals are connected to everyone but connecting to no one.
Briefly explain the need and importance of Virtualisation in today's IT organisations with some examples.
Describe in scholarly detail "technical jargon" and describe the role of project managers and telecommunications managers.
Assume two hosts, A and B, are separated by 10,000 kilometers and are connected by direct link of R =1 Mbps. Assume propagation speed over link is 2.5?108 meters/sec .How long does it take to send file, suppose it is sent continuously?
What is the number of triangles in a complete graph with vertices and what is the expected number of triangles in an Erdos-Rényi graph , a graph on vertices where each edge appears with a probability independently?
In using wireless networking and WEP enabled phone, how is security important? would you trust the methods that exist today to secure these technologies?
Explain how a client process in a given end system can find the location of a given user to establish a connection, for example, Internet telephone, at a given point in time.
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