Principles of Information Systems
13th Edition
ISBN: 9781337660556
Author: Ralph Stair; George Reynolds
Publisher: Cengage Learning US
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Chapter 4, Problem 2CTQ1
Explanation of Solution
Privacy of STM riders in
“Yes”, users believe that the database design will safeguard the privacy of STM riders.
- Splitting the data could safeguard the privacy but user will have to consider the cost to performance.
- From the given passage, the STM Merci app is divided into two databases to protect the privacy of STM riders...
Explanation of Solution
Further changes needed for privacy of STM riders:
The further changes are needed to the security and dependencies of the database design is as follows
- For security concept:
- Certain encryption techniques should be used to make it safer...
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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
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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 4 Solutions
Principles of Information Systems
Ch. 4.1 - Prob. 1RQCh. 4.1 - Prob. 2RQCh. 4.1 - Prob. 1CTQCh. 4.1 - Prob. 2CTQCh. 4.2 - Prob. 1RQCh. 4.2 - Prob. 2RQCh. 4.2 - Prob. 1CTQCh. 4.2 - Prob. 2CTQCh. 4.3 - Prob. 1RQCh. 4.3 - Prob. 2RQ
Ch. 4.3 - Prob. 1CTQCh. 4.3 - Prob. 2CTQCh. 4.4 - What is the primary difference between purchasing...Ch. 4.4 - What are the pros and cons of using open-source...Ch. 4.4 - What risks and start-up issues are associated with...Ch. 4.4 - Prob. 2CTQCh. 4 - Prob. 1SATCh. 4 - Prob. 2SATCh. 4 - Prob. 3SATCh. 4 - Prob. 4SATCh. 4 - Prob. 5SATCh. 4 - Prob. 6SATCh. 4 - Prob. 7SATCh. 4 - Prob. 8SATCh. 4 - Prob. 9SATCh. 4 - Prob. 10SATCh. 4 - ______ is software that makes its source code...Ch. 4 - Software ______ are an important source of...Ch. 4 - Identify and briefly discuss the three spheres of...Ch. 4 - Prob. 2RQCh. 4 - Prob. 3RQCh. 4 - What is the kernel of the operating system?Ch. 4 - Prob. 5RQCh. 4 - Prob. 6RQCh. 4 - Prob. 7RQCh. 4 - Prob. 8RQCh. 4 - Prob. 9RQCh. 4 - Distinguish between proprietary software and...Ch. 4 - Prob. 11RQCh. 4 - Prob. 12RQCh. 4 - Prob. 13RQCh. 4 - Prob. 14RQCh. 4 - Prob. 15RQCh. 4 - Prob. 16RQCh. 4 - Prob. 1DQCh. 4 - Assume that you must take a computer-programming...Ch. 4 - Prob. 3DQCh. 4 - Prob. 4DQCh. 4 - Prob. 5DQCh. 4 - Prob. 6DQCh. 4 - Prob. 7DQCh. 4 - Prob. 8DQCh. 4 - Prob. 9DQCh. 4 - Prob. 10DQCh. 4 - Prob. 1PSECh. 4 - Prob. 2PSECh. 4 - Prob. 3PSECh. 4 - Prob. 1TACh. 4 - Prob. 1WECh. 4 - Do research on the Web to learn which programming...Ch. 4 - Prob. 3WECh. 4 - Prob. 1CECh. 4 - Prob. 2CECh. 4 - Think of your ideal job. Identify two existing...Ch. 4 - Prob. 1CTQ1Ch. 4 - Prob. 2CTQ1Ch. 4 - Prob. 3CTQ1Ch. 4 - Prob. 1CTQ2Ch. 4 - Prob. 2CTQ2Ch. 4 - Prob. 3CTQ2
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- How to develop a C program that receives the message sent by the provided program and displays the name and email included in the message on the screen?Here is the code of the program that sends the message for reference: typedef struct { long tipo; struct { char nome[50]; char email[40]; } dados;} MsgStruct; int main() { int msg_id, status; msg_id = msgget(1000, 0600 | IPC_CREAT); exit_on_error(msg_id, "Creation/Connection"); MsgStruct msg; msg.tipo = 5; strcpy(msg.dados.nome, "Pedro Silva"); strcpy(msg.dados.email, "pedro@sapo.pt"); status = msgsnd(msg_id, &msg, sizeof(msg.dados), 0); exit_on_error(status, "Send"); printf("Message sent!\n");}arrow_forward9. Let L₁=L(ab*aa), L₂=L(a*bba*). Find a regular expression for (L₁ UL2)*L2. 10. Show that the language is not regular. L= {a":n≥1} 11. Show a derivation tree for the string aabbbb with the grammar S→ABλ, A→aB, B→Sb. Give a verbal description of the language generated by this grammar.arrow_forward14. Show that the language L= {wna (w) < Nь (w) < Nc (w)} is not context free.arrow_forward
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- 12. Eliminate useless productions from Sa aA BC, AaBλ, B→ Aa, C CCD, D→ ddd Cd. Also, eliminate all unit-productions from the grammar. 13. Construct an npda that accepts the language L = {a"b":n≥0,n‡m}.arrow_forwardYou are given a rope of length n meters and scissors that can cut the rope into any two pieces. For simplification, only consider cutting the rope at an integer position by the meter metric. Each cut has a cost associated with it, c(m), which is the cost of cutting the rope at position m. (You can call c(m) at any time to return the cost value.) The goal is to cut the rope into k smaller pieces, minimizing the total cost of cutting. B Provide the pseudo-code of your dynamic programming algorithm f(n,k) that will return the minimum cost of cutting the rope of length n into k pieces. Briefly explain your algorithm. What is the benefit of using dynamic programming for this problem? What are the key principles of dynamic programming used in your algorithm?arrow_forwardDetermine whether each of the problems below is NP-Complete or P A. 3-SAT B. Traveling Salesman Problem C. Minimum Spanning Tree D. Checking if a positive integer is prime or not. E. Given a set of linear inequalities with integer variables, finding a set of values for the variables that satisfies all inequalities and maximizes or minimizes a given linear objective function.arrow_forward
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