Principles of Information Systems
13th Edition
ISBN: 9781337660556
Author: Ralph Stair; George Reynolds
Publisher: Cengage Learning US
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Chapter 13.1, Problem 1CTQ
Program Plan Intro
Hacker:
- A hacker denotes a skilled computer expert that uses technical knowledge to overcome a problem.
- The bugs or exploits are been used by hacker to break into computer systems.
- The hacker is able to subvert
computer security . - It mostly denotes computer criminals due to unethical tasks performed.
- It can be stated as a person who messes about with something with positive sense.
Difference between a black hat hacker and white hat hacker:
| Black hat hacker | White hat hacker |
| Violates computer security for personal gains. | Hired by organization to test security. |
| Responsible for writing malware. | Responsible to avoid malwares. |
| Aimed at stealing data as well as login credentials. | Aimed at guarding data and login credentials. |
| Modify or destroy sensitive information. | Protects sensitive information. |
| Uses technical knowledge for evil deeds. | Uses technical knowledge for good deeds. |
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Consider the following scenario in which host 10.0.0.1 is communicating with an external SMTP mail server at IP
address 128.119.40.186.
NAT translation table
WAN side addr
LAN side addr
(c), 5051
(d), 3031
S: (e),5051
SMTP
B
D (f.(g)
10.0.0.4
server
138.76.29.7
128.119.40.186
(a) is the source IP address at A, and its value.
S: (a),3031
D: (b), 25
10.0.0.1
A
10.0.0.2.
1. 138.76.29.7
10.0.0.3
6.3A-3. Multiple Access protocols (3). Consider the figure below, which shows the arrival of 6
messages for transmission at different multiple access wireless nodes at times t=0.1, 1.4, 1.8, 3.2,
3.3, 4.1. Each transmission requires exactly one time unit.
1
t=0.0
2
3
45
t=1.0
t-2.0
t-3.0
6
t=4.0
t-5.0
For the CSMA protocol (without collision detection), indicate which packets are successfully
transmitted. You should assume that it takes .2 time units for a signal to propagate from one node to
each of the other nodes. You can assume that if a packet experiences a collision or senses the
channel busy, then that node will not attempt a retransmission of that packet until sometime after
t=5. Hint: consider propagation times carefully here. (Note: You can find more examples of problems similar to this here B.]
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Just wanted to know, if you had a scene graph, how do you get multiple components from a specific scene node within a scene graph? Like if I wanted to get a component from wheel from the scene graph, does that require traversing still?
Like if a physics component requires a transform component and these two component are part of the same scene node. How does the physics component knows how to get the scene object's transform it is attached to, this being in a scene graph?
Chapter 13 Solutions
Principles of Information Systems
Ch. 13.1 - Prob. 1RQCh. 13.1 - Prob. 2RQCh. 13.1 - Prob. 1CTQCh. 13.1 - Prob. 2CTQCh. 13.2 - Prob. 1RQCh. 13.2 - Prob. 2RQCh. 13.2 - Prob. 1CTQCh. 13.2 - Prob. 2CTQCh. 13 - Prob. 1SATCh. 13 - Prob. 2SAT
Ch. 13 - Prob. 3SATCh. 13 - Prob. 4SATCh. 13 - Prob. 5SATCh. 13 - Prob. 6SATCh. 13 - Prob. 7SATCh. 13 - Prob. 8SATCh. 13 - Prob. 9SATCh. 13 - Prob. 10SATCh. 13 - Prob. 11SATCh. 13 - Prob. 12SATCh. 13 - Prob. 13SATCh. 13 - Prob. 14SATCh. 13 - Prob. 1RQCh. 13 - Prob. 2RQCh. 13 - Prob. 3RQCh. 13 - Prob. 4RQCh. 13 - Prob. 5RQCh. 13 - Prob. 6RQCh. 13 - Prob. 7RQCh. 13 - Prob. 8RQCh. 13 - Prob. 9RQCh. 13 - Prob. 10RQCh. 13 - Prob. 11RQCh. 13 - Prob. 12RQCh. 13 - Prob. 13RQCh. 13 - Prob. 14RQCh. 13 - Prob. 15RQCh. 13 - Prob. 16RQCh. 13 - Prob. 1DQCh. 13 - Prob. 2DQCh. 13 - Prob. 3DQCh. 13 - Prob. 4DQCh. 13 - Prob. 5DQCh. 13 - Prob. 6DQCh. 13 - Prob. 7DQCh. 13 - Prob. 1PSECh. 13 - Prob. 2PSECh. 13 - Prob. 1TACh. 13 - Prob. 2TACh. 13 - Prob. 3TACh. 13 - Prob. 1WECh. 13 - Prob. 2WECh. 13 - Prob. 3WECh. 13 - Prob. 1CECh. 13 - Prob. 2CECh. 13 - Prob. 3CECh. 13 - Prob. 1CTQ1Ch. 13 - Prob. 2CTQ1Ch. 13 - Prob. 3CTQ1Ch. 13 - Prob. 1CTQ2Ch. 13 - Prob. 2CTQ2Ch. 13 - Prob. 3CTQ2
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