Enhanced Discovering Computers 2017 (Shelly Cashman Series) (MindTap Course List)
1st Edition
ISBN: 9781305657458
Author: Misty E. Vermaat, Susan L. Sebok, Steven M. Freund, Mark Frydenberg, Jennifer T. Campbell
Publisher: Cengage Learning
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Chapter 5, Problem 4CTQ
Explanation of Solution
Use of biometric devices in protection of data and equipment:
Biometric devices use unique characteristics of personnel, such as fingerprint patterns, or voice pattern, or retina pattern of the eye.
With biometric devices, it can be exceptionally difficult for illicit personnel to break into a system...
Explanation of Solution
Fingerprint readers:
Product:
- The product taken into consideration is the Universal Serial Bus (USB) finger print reader.
- A USB fingerprint reader is a type of biometric technology that can identify and authenticate the fingerprints of a person in order to deny or grant access to a physical facility or a system.
- The device can utilize the combination of software and hardware techniques for identifying the fingerprint scans of personnel.
Cost:
- The USB fingerprint reader is one of the cheapest biometric devices available in the market.
- The cost of a fingerprint scanner would be around 50 dollars.
User reviews:
- Accuracy of this biometric type is medium.
- Stability of the fingerprint reader is low.
- Security level of the fingerprint reader is low.
Face recognition systems:
Product:
- The product taken into consideration is the face recognition USB camera.
- Face recognition USB camera is a type of biometric device that can map a person’s facial features mathematically and can store the information as a face print.
- The device utilizes deep learning
algorithm for comparing a digital image or live capture to the stored face print in order to verify a person’s identity...
Explanation of Solution
Recommendations:
“Yes”, the user would recommend biometric device for security purposes would be fingerprint recognition system...
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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
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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
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t=1.0
t-2.0
t-3.0
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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 5 Solutions
Enhanced Discovering Computers 2017 (Shelly Cashman Series) (MindTap Course List)
Ch. 5 - Prob. 1SGCh. 5 - Prob. 2SGCh. 5 - Prob. 3SGCh. 5 - Prob. 4SGCh. 5 - Prob. 5SGCh. 5 - Prob. 6SGCh. 5 - Prob. 7SGCh. 5 - Prob. 8SGCh. 5 - Prob. 9SGCh. 5 - Prob. 10SG
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