Wireless networking quiz 2 | Computer Science homework help

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1.         How long is a RIFS?

A.         2 microseconds

B.         10 microseconds

C.         16 microseconds

D.         9 microseconds

 

2.         What guard interval is used with 64-QAM by 802.11n HT devices to reach 600 Mbps data rates?

A.         800 ns

B.         200 ns

C.         100 ns

D.         400 ns

 

3.         When two RF signals on the same frequency arrive at a receiver at the exact same time and their peaks and valleys are in alignment, what is true about these signals? (choose all that apply)

A.         They are 180 degrees out of phase

B.         They are 90 degrees out of phase

C.         They have 0 degrees of separation

D.         They are in phase

 

4.         What is the cause of Free Space Path Loss? 

A.         Beam Reflection

B.         Beam Absorption

C.         Beam Diffraction

D.         Beam Divergence

 

5.         Which of the following are units of power?

A.         dBi

B.         Watt

C.         Milliwatt

D.         dBd

E.         dBm

 

6.         A single milliwatt = 0 decibels of change.

A.         True

B.         False

 

7.         Which of the following increase amplitude?

A.         Lightning arrestors

B.         RF Cables

C.         Pig tail adaptors

D.         Antennae

E.         Amplifiers

 

8.         More than 40% blockage in the Fresnel Zone will not impede an RF link.

A.         True

B.         False

 

9.         Which of the following describes a behavior of waves?

A.         Frequency

B.         Phase

C.         Modulation

D.         Amplitude

 

10.        Phase is a standard measurement of RF wave size.

A.         True

B.         False

 

11.        In an ERP 802.11 network, there are two mandated spread spectrum technologies.

A.         True

B.         False

 

12.        ERP-OFDM stations can not connect with OFDM AP’s because the use different __________.

A.         Contention methods

B.         Modulation techniques

C.         Frequencies

D.         Coordination functions

 

13.        Which data rates are supported by PBCC?

A.         6, 12, and 24 Mbps

B.         36, 48 and 54 Mbps

C.         1, 2, 5.5 and 11 Mbps

D.         22 and 33 Mbps

E.         1, 2, 5.5, 11, 22, and 33 Mbps

 

14.        How many adjacent non-overlapping channels may be used in the same physical area using the 2.4 GHz spectrum?

A.         14

B.         11

C.         6

D.         3

 

15.        The area of coverage provided by an AP is called which of the following?

A.         BSS

B.         ESS

C.         BSA

D.         WLAN

 

16.        The function of an AP is most closely related to which wired networking device?

A.         A Switch

B.         A Hub

C.         A router

D.         A firewall

 

17.        What is the largest channel size possible with 802.11ac?

A.         40 MHz

B.         80 MHz

C.         120 MHz

D.         160 MHz

 

18.        What is required for stations to use 256-QAM?

A.         they must have a firmware upgrade

B.         there can be no more then 2 stations

C.         they must be very close to the AP

D.         they must be far from the AP

 

19.        The period of time that exist between wireless frames is called __________.

A.         Duration/ID field

B.         NAV Value

C.         Interframe Space

D.         Carrier Sense

 

20.        What are the two ways carrier sense is performed? (Choose two)

A.         Virtual Carrier Sense

B.         Physical Carrier Sense

C.         Logical Carrier Sense

D.         DCF Carrier Sense

E.         HCF Carrier Sense

 

21.        What are the two frames used in active scanning? (Choose two)

A.         Beacon Management Frame

B.         Probe Response Frame

C.         Clear to Send Frame

D.         Ready to Send Frame

E.         Probe Request Frame

 

22.        Which of the following devices are said to be parts of a Specialty WLAN Infrastructure (Choose all that apply)

A.         Autonomous AP’s

B.         Lightweight AP’s

C.         Wireless Workgroup Bridges

D.         PTMP Bridges

E.         WLAN Controllers

 

23.        Many Law Enforcement agencies use frequency managers.

A.         True

B.         False

 

24.        When designing wireless networks, two concepts often conflict.  What are they? (Choose two)

A.         Capacity

B.         Channel

C.         Antenna type

D.         Transmit Power

E.         Coverage

 

25.        The standard as amended defines which PoE device types?

A.         Legacy

B.         PSE

C.         PD

D.         Proprietary

 

26.        Which if the following is responsible for enrolling client devices?

A.         Mobile Device

B.         AP/WLAN Controller

C.         MDM Server

D.         Push notification server

 

27.        What are the three main components of the 802.1X/EAP Framework?

A.         Authentication, Authorization, Accounting

B.         Authentication Server, Authentication Client, Authentication Accountant

C.         Authenticator, Supplicant, Authentication Server

D.         Authentication Guest, Authentication member, Authentication Server

 

28.        A spectrum analyzer can be used to locate the source of which type of intentional attack?

A.         RF Jamming

B.         Overlapping adjacent channel interference

C.         Bit Flipping

D.         Duration field spoofing

 

29.        What is a primary concern when planning WLAN deployments within the government vertical market?

A.         Cost

B.         Channel Use

C.         Security

D.         Capacity

 

30.        A facilities escort may be required when conducting a site survey.

A.         True

 

B.         False

Software engineering and artificial intelligence

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Topic: Software Engineering and Artificial Intelligence

Write a research paper with at least 3,500 words supported by evidence (citations from peer-reviewed sources).

A minimum of  5-7 peer-reviewed journal articles are required.

Follow all the instructions in the file attached

1) Chapter 1 – Introduction

2) Chapter 2 – Literature Review

3) Chapter 3 – Methodology Specifics (comparative analysis)

4) Chapter 4 – Findings and Results

5) Chapter 5 – Conclusion and Future Recommendations

6) References – APA

7) Appendices

ops400 operations management 5 page apa formated essay 3 citations

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Required

  • Chapter 1 in Operations Management: Sustainability and Supply Chain Management
  • Jha, R. K., Sahay, B. S., & Charan, P. (2016). Healthcare operations management: A structured literature review. Decision, 43(3), 259-279. doi: 10.1007/s40622-016-0132-6
  • Zhao, S. (2014). Analyzing and evaluating critically Tesco’s current operations management.Journal of Management and Sustainability, 4(4), 184-187. doi:10.5539/jms.v4n4p184 Retrieved from http://www.ccsenet.org/journal/index.php/jms/article/view/42713

Recommended

  • Radnor, Z., & O’Mahoney, J. (2013). The role of management consultancy in implementing operations management in the public sector. International Journal of Operations & Production Management, 33(11), 1555-1578.
  • Chan, H. K., Lacka, E., Yee, R. W., & Lim, M. K. (2017). The role of social media data in operations and production management. International Journal of Production Research, 55(17), 5027-5036. doi:10.1080/00207543.2015.1053998

Additional Resources

  • Production and Operations Management Society website
  • Economics and Statistics Administration website
  • National Bureau of Economic Research website

Module 1: Critical Thinking

  • Points 70
  • Submitting a file upload

Critical Thinking Assignment (70 Points)

Important! Read First

Choose one of the following two assignments to complete this week. Do not do both assignments. Identify your assignment choice in the title of your submission.

Option #1: Operations Management Role in Service Industry Essay

Identify one service industry example (e.g., Bank of America) where operations management may play a significant role. Explain the type of operations management activities performed at this organization. Describe the services it offers with specific examples and factors that contribute to its productivity.

Submission Requirements:

  • Your well-written paper should be three to five pages in length not including the required cover and references pages.
  • Support your paper with at least two to four scholarly references (of which the textbook may be one). Use current sources, not older than five years. The CSU-Global Library is a good place to find these references.
  • Format your paper according to the CSU-Global Guide to Writing & APA (Links to an external site.).

Option #2: Operations Management Role in Product Industry Essay

Identify one product/goods industry example (e.g., Tesla) where operations management may play a significant role. Explain the type of operations management activities performed at this organization. Describe the products it offers with specific examples and factors that contribute to its productivity.

Submission Requirements

  • Your well-written paper should be three to five pages in length not including the required cover and references pages.
  • Support your paper with at least two to four scholarly references (of which the textbook may be one). Use current sources, not older than five years. The CSU-Global Library is a good place to find these references.
  • Format your paper according to the CSU-Global Guide to Writing and APA (Links to an external site.).

Rubric

OPS400 Mod 1 CT

OPS400 Mod 1 CT

Criteria

Ratings

Pts

This criterion is linked to a Learning Outcome Requirements

10.0 to >8.0 pts Meets Expectation

Includes all of the required components, as specified in the assignment.

8.0 to >6.0 pts Approaches Expectation

Includes most of the required components, as specified in the assignment.

6.0 to >4.0 pts Below Expectation

Includes some of the required components, as specified in the assignment.

4.0 to >0 pts Limited Evidence

Includes few of the required components, as specified in the assignment.

10.0 pts

This criterion is linked to a Learning Outcome Content

15.0 to >12.0 pts Meets Expectation

Demonstrates strong or adequate knowledge of the materials; correctly represents knowledge from the readings and sources.

12.0 to >9.0 pts Approaches Expectation

Some significant but not major errors or omissions in demonstration of knowledge.

9.0 to >6.0 pts Below Expectation

Major errors or omissions in demonstration of knowledge.

6.0 to >0 pts Limited Evidence

Fails to demonstrate knowledge of the materials.

15.0 pts

This criterion is linked to a Learning Outcome Synthesis and Evaluation

15.0 to >12.0 pts Meets Expectation

Demonstrates strong or adequate synthesis and evaluation of course concepts in operations management.

12.0 to >9.0 pts Approaches Expectation

Some significant but not major errors or omissions in synthesis and evaluation.

9.0 to >6.0 pts Below Expectation

Major errors or omissions in synthesis and evaluation.

6.0 to >0 pts Limited Evidence

Fails to demonstrate synthesis and evaluation.

15.0 pts

This criterion is linked to a Learning Outcome Sources / Examples

15.0 to >12.0 pts Meets Expectation

Sources or examples meet required criteria and are well chosen to provide substance and perspectives on the issue under examination.

12.0 to >9.0 pts Approaches Expectation

Sources or examples meet required criteria but are less‐than adequately chosen to provide substance and perspectives on the issue under examination.

9.0 to >6.0 pts Below Expectation

Sources or examples meet required criteria but are poorly chosen to provide substance and perspectives on the issue under examination.

6.0 to >0 pts Limited Evidence

Source or example selection and integration of knowledge from the course is clearly deficient.

15.0 pts

This criterion is linked to a Learning Outcome Demonstrates college-level proficiency in organization, grammar, and style.

10.0 to >8.0 pts Meets Expectation

Project is clearly organized, well written, and in proper essay format as outlined in the assignment. Strong sentence and paragraph structure; few errors in grammar and spelling.

8.0 to >6.0 pts Approaches Expectation

Project is fairly well organized and written, and is in proper essay format as outlined in the assignment. Reasonably good sentence and paragraph structure; significant number of errors in grammar and spelling.

6.0 to >4.0 pts Below Expectation

Project is poorly organized; does not follow proper essay format. Inconsistent to inadequate sentence and paragraph development; numerous errors in grammar and spelling.

4.0 to >0 pts Limited Evidence

Project is not organized or well written, and is not in proper essay format. Poor quality work; unacceptable in terms of grammar and spelling.

10.0 pts

This criterion is linked to a Learning Outcome Demonstrates proper use of APA style.

5.0 to >4.0 pts Meets Expectation

Project contains proper APA formatting, according to the CSU-Global Guide to Writing and APA, with no more than one significant error.

4.0 to >3.0 pts Approaches Expectation

Few errors in APA formatting, according to the CSU-Global Guide to Writing and APA, with no more than two to three significant errors.

3.0 to >2.0 pts Below Expectation

Significant errors in APA formatting, according to the CSU-Global Guide to Writing and APA, with four to five significant errors.

2.0 to >0 pts Limited Evidence

Numerous errors in APA formatting, according to the CSU-Global Guide to Writing and APA, with more than five significant errors.

5.0 pts

 

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10 page power point on leadership

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Prior to beginning work on this assignment, read The Most Important Leadership Competencies, According to Leaders Around the World (Links to an external site.), watch The “Last Lecture” by Randy Pausch (Links to an external site.) video.

In The Last Lecture video, Randy Pausch informs his audience about his health situation and then goes into sharing his childhood dreams that he was able to achieve. Through his lecture, he is able to demonstrate the leadership competencies commonly identified among leaders from around the world.

In a PowerPoint presentation,

  • Analyze seven key leadership competencies observed in The Last Lecture
  • Identify how these competencies relate to various leadership styles.
  • Determine how these leadership competencies apply to organizational success.

The Last Lecture PowerPoint presentation

  • Must be 10 slides in length (not including title and references slides) and formatted according to APA style as outlined in the Ashford Writing Center’s How to Make a PowerPoint Presentation (Links to an external site.) resource.
  • Must include a separate title slide with the following:
    • Title of project
    • Student’s name
    • Course name and number
    • Instructor’s name
    • Date submitted
  • For further assistance with the formatting and the title page, refer to APA Formatting for Word 2013 (Links to an external site.).
  • Must utilize academic voice. See the Academic Voice (Links to an external site.) resource for additional guidance.
  • Must include an introduction and conclusion paragraph. Your introduction paragraph needs to end with a clear thesis statement that indicates the purpose of your presentation.
    • For assistance on writing Introductions & Conclusions (Links to an external site.) as well as Writing a Thesis Statement (Links to an external site.),.
  • Must use at least three scholarly sources in addition to the course texts.
    • The Scholarly, Peer-Reviewed, and Other Credible Sources (Links to an external site.) table offers additional guidance on appropriate source types. If you have questions about whether a specific source is appropriate for this assignment, please contact your instructor. Your instructor has the final say about the appropriateness of a specific source for a particular assignment.
  • Must document any information used from sources in APA style Citing Within Your Paper (Links to an external site.) guide.
  • Must include a separate references slide that is formatted according to APA style See the Formatting Your References List (Links to an external site.) .