EBK ESSENTIALS OF MIS,
13th Edition
ISBN: 8220106778494
Author: LAUDON
Publisher: PEARSON
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Chapter 8, Problem 15CSQ
Program Plan Intro
System vulnerability:
- When huge data amounts are been kept in electronic form, it becomes susceptible to many threats.
- The
information systems in many locations are been interconnected through communication networks. - The unauthorized access can occur at many access points in network and is not limited to single location.
- The data flowing over networks could be accessed; valuable information could be stolen while transmission or data could be altered without authorization.
- The denial-of-service attacks are launched by intruders to disrupt website operations.
- Internets are vulnerable than internal networks as it is open to everyone.
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Simulate on a vertical time axis (with events labeled with the senders names A-D) the contention period of FOUR equally distanced Ethernet stations that all attempt to transmit at T=0 a minimally sized frame, in the style of the binary Exponential Backoff Algorithm. Assume that time is measured in slot times, and that exactly one slot time is needed to detect a collision (so that if two stations transmit at T=1 and collide, and one of them chooses a backoff time k=0, then that station will transmit again at T=2).
Use as coin flip (source of randomness) an ID written in binary.
use the bits in order from the least significant to the most significant. If for a given coin throw you need k bits, use the least significant ID bit extracted in the corresponding group of bits, as the least significant bit of the coin thrown.
Start be writing the ID, which is 904012207
As example of the expected answer format,
with the random sequence R: 100101010101001011001010 01 01011 10010 1010 1010 010…
Big State University
The Big State University course catalog reads as follows: "To enroll in MIS 260, which is an advanced
course, a student must complete two prerequisites: MIS 120 and MIS 222. A student who completes
either one of these prerequisites and obtains the instructor's permission, however, will be allowed to
take MIS 260."
Tasks
1. Create a decision table that describes the Big State University course catalog regarding eligibility for
MIS 260. Show all possible rules.
2. Simplify the table you just created. Describe the results.
3. Draw a simplified decision tree to represent the Big State University catalog. Describe the results.
4. Why might you use a decision tree rather than a decision table?
What is the ALU result if the 4-bit ALU Control signal is 0100? What happens if the ALU Control signal is 0101?
Chapter 8 Solutions
EBK ESSENTIALS OF MIS,
Ch. 8.1 - Prob. 1CQ1Ch. 8.1 - Prob. 2CQ1Ch. 8.1 - Prob. 3CQ1Ch. 8.1 - Prob. 4CQ1Ch. 8.4 - Prob. 1CQ2Ch. 8.4 - Prob. 2CQ2Ch. 8.4 - Prob. 3CQ2Ch. 8.4 - Prob. 4CQ2Ch. 8 - Prob. 1IQCh. 8 - Prob. 2IQ
Ch. 8 - Prob. 3IQCh. 8 - Prob. 4IQCh. 8 - Prob. 5IQCh. 8 - Prob. 1RQCh. 8 - Prob. 2RQCh. 8 - Prob. 3RQCh. 8 - Prob. 4RQCh. 8 - Prob. 5DQCh. 8 - Prob. 6DQCh. 8 - Prob. 7DQCh. 8 - Prob. 8HMPCh. 8 - Prob. 9HMPCh. 8 - Prob. 11CTPCh. 8 - Prob. 12CTPCh. 8 - Prob. 13CSQCh. 8 - Prob. 14CSQCh. 8 - Prob. 15CSQCh. 8 - Prob. 16CSQCh. 8 - Prob. 17MLMCh. 8 - Prob. 18MLM
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