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(a) Why do you think companies often fail to harden their servers adequately? Justify your explanation.
(b) In their purest form, netbooks are PCs designed to have little or no software stored on them. Instead, they are designed to use cloud computing, in which the software and data are both stored on Internet servers. Netbooks in this pure form can only work when they have an Internet connection. Based on what you learned in this topic (Chapter 7), discuss security implications for netbooks, both pros and cons.
Research three recent information security breaches. Do main targets seem to be larger or smaller companies? Is there a particular industry which seems predominately targeted?
Explain/propose a new/possible idea on how these networks can be kept safe from hacking.
You are to create a small network (less than 50 but greater than 20 nodes) for organization of choice consisting of multiple operating systems, security mechanisms, and devices.
Write down the analogous steps in dimensioning a computer network?
Two CSMA/CD stations are each attempting to transmit long (multiframe) files. After each frame is sent, they contend for channel using binary exponential backoff algorithm.
Describe the mechanism used for signaling between client and server to indicate that persistent connection is being closed. Can client, server, or both signal close of connection?
A firm has the following firewall policy: Employee access to Internet servers should be unrestricted and external clients should only be able to access the firm's public webserver.
What is the maximum size of the TCP header; What is the minimum size of the TCP header?
you are asked to investigate and write a report on using Internet phone and the company's existing LAN to replace the company's PBX.
In recent years, a wide variety of mobile computing devices has emerged, including portables, palmtops, and personal digital assistants. Providing adequate network connectivity for these devices will require a new generation of wireless LAN techno..
Assume the material is to be transmitted over T-1 facility (1.544 Mbps). How long will it take, exclusive of overhead, to transmit volume?
A company is interested in upgrading its current core infrastructure, which comprises 2 100mbps switches which connect to a utility room that houses 8 100mbps switches wired with Ethernet Category 5 that run to each client machines.
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