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Suppose nodes A and B are on the same 10 Mbps Ethernet bus, and the propagation delay between the two nodes is 245 bit times. Suppose A and B send frames at the same time, the frames collide, and then A and B choose different values of K in the CSMA/CD algorithm. Assuming no other nodes are active, can the retransmissions from A and B collide? For our purposes, it suffices to work out the following example. Suppose A and B begin transmission at t=0 bit times. They both detect collisions at t=245 bit times. They finish transmitting a jam signal at t = 245 + 48 = 293 bit times. Suppose KA=0 and KB= 1. At what time does B scheduleits retransmission? At what time does A begin transmission? (Note: The nodes must wait for an idle channel after returning to Step 2, see protocol.) At what time does A's signal reach B? Does B refrain from transmitting at its scheduled time?
You charged $1,000 on your credit card for Christmas presents. Your credit card firm charges you 16 percent yearly interest, compounded monthly.
Explain what it contains and whether there may be any negative side effects associated with it. In general, are these energy drinks healthy?
The long-run aggregate supply curve is vertical at economy's potential output level. Why is the long-run aggregate supply curve situated at his level of output rather than below or above the potential output level?
Illustrate the results applying deadlock detection algorithm to following data. Give proper description for supporting your answer.
The stock of ABC Corporation will go ex-dividend tomorrow. The dividend will be $0.50 per share, and there are 20,000 shares of stock outstanding.
What else could Enron have done to foster good corporate governance conduct and outline conclusions about Enron's corporate behaviour and make recommendations about appropriate corporate governance in this case.
Assume you're the manager of Alpha Enterprises, a firm that holds the patent that makes it the exclusive manufacturer of bubble memory chips. Based on the estimates provided by the consultant
Write a SELECT statement which returns three columns: VendorName, InvoiceCount, and InvoiceSum. InvoiceCount is the count of the number of invoices, and InvoiceSum is the sum of the InvoiceTotal column.
When you take a drink of alcohol - what is the path it takes in the body to cause the effects it does and what factors may determine how "blitzed" you get?
How many page faults would happen for the given replacement algorithms, assuming one, two, three, and four frames?
Given a DAC system explain how a MAC system could be "implemented" on top of this DAC system. Explain any problems and assumptions.
Compute the total time required to transfer a 1000KB file on a 1Mbps link with an RTD of 100msec ans a packet size of 1 KB in the following cases.a).
Create a network design which accommodates these requirements and keeps costs down. These training environments a maximum of one instructor and 12 students.
Provide an example explaining the best use of Virus, Encryption, VPN, Firewall securities, when and why?Which security areas you are using and applying to your securities? Also explain why?
As the data center manager for your organization, you have been asked by the CIO to provide a short presentation on the advantages and disadvantages of replacing old servers with new servers.
Suppose that the links and routers in the network never fail and that routing paths used between all source/destination pairs remains constant. In this scenario, does a VC or datagram architecture have more traffic overhead. Why?
Write one-page proposal of how company can manage SNMP from corporate location. Include details on versions, basic operations, and MIBs. Describe the benefits of this kind of centralized monitoring.
As security manager at XYZ Corporation, you are responsible for managing intrusion detection environment. If you were given the ability to build the environment from scratch, would you use network based IDS, host based IDS, or a combination?
Suppose the university has the 128.100.xxx.xxx address range on the Internet. How would you assign the IP addresses to the various subnets?
How would you utilize this information in the decision-making process to help the company grow?
Subnet a class C network into subnets using 2 of the resulting new Network IDs Diagram a woring LAN depiting the two newnetworks.
What is the relationship between individual characteristics and job satisfaction?
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