Archive for category: Uncategorized

Question 1 (1 point)

Select the line of Java code that will correctly declare a float variable named average and assign the variable a value of 3.4.

Question 1 options:

	None of the above
	int average; average = 3.4;
	int average = 3.4D;
	int average = 3.4f;
	int average = 3.4;

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Question 2 (1 point)

Select the correct line of Java code to assign 1000 to an int variable named myValue.

Question 2 options:

	int myValue = 1000;
	int myValue = 0x3E8;
	int myValue = 0b1111101000;
	All of the above
	None of the above

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Question 3 (1 point)

Which of the following is an invalid Java statement:

Question 3 options:

	System.out.println(“Hello, World! “);
	int d = 14;
	d++;
	x + y/100;
	None of the above

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Question 4 (1 point)

Which of the following statements is a comment in Java

Question 4 options:

	/ This is a test
	public class Hello {
	// This is a test. //
	(String[] args)
	None of the above

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Question 5 (1 point)

Will the following Java code compile and run?

public class QuizItem  {    public static void main(String[] args)       {           final int age = 38;      System.out.println(“Age is ” + Age);    } }

Question 5 options:

	Yes
	No

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Question 6 (1 point)

What is the output from the following Java code?

public class Week1Quiz {

public static void main (String[] args) {

System.out.println (“Welcome”);

System.out.println (“to”);

System.out.print (“UMUC!”);

}

}

Question 6 options:

	Welcome to UMUC!
	No output as the code will not compile.
	Welcome to UMUC
	None of the above
	WelcometoUMUC

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Question 7 (1 point)

What character is assigned to the variable myChar in the following line of Java code?

char value = ‘\u0023’;

Question 7 options:

	#
	y
	null
	?
	X

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Question 8 (1 point)

Will the following Java code compile and run without errors? public class QuizItem  {    public static void main(String[] args)       {           final int age = 38;      age = 39;       System.out.println(“Age is ” + age);    } }

Question 8 options:

	Yes
	No

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Question 9 (1 point)

You are designing a program for users to enter whole numbers that range from -200 to 2147483648. What Java data type will best satisfy this range of numbers?

Question 9 options:

	int
	long
	byte
	char
	short

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Question 10 (1 point)

Given the following sequence of Java code: int var = 4; var++; var = var + 2; var–; var = -var;   What is the final value of var?

Question 10 options:

	4
	-6
	8
	-9
	None of the above

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Question 11 (1 point)

You are designing a program for users to enter whole numbers that range from -100 to 127. What Java data type will best and most efficiently satisfy this range of numbers?

Question 11 options:

	int
	char
	byte
	long
	short

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Question 12 (1 point)

Given the following sequence of Java code: int var1 = 9; int var2 = 12; boolean failure = false; int result = failure ? var1 : var2; What is the value of result after executing the code?

 

Question 12 options:

	12
	9:12
	9
	3
	0.75

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Question 13 (1 point)

Select the Java code that will correctly declare a boolean variable named success and assign it a value of false.

Question 13 options:

	Boolean success = true;
	int success = false;
	None of the above
	boolean success = 1;
	boolean success = 0;

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Question 14 (1 point)

Given the following sequence of Java code: int var1 = 9; int var2 = 12; int var3 = 12;   Which of the following statements evaluate to true

Question 14 options:

	var1 != var2
	var1 < var2
	var1 <= var2
	var2 == var3
	All of the above

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Question 15 (1 point)

What is the output from the following Java code?

public class Week1Quiz {

public static void main (String[] args) {

System.out.print (“Welcome”);

System.out.print (“to “);

System.out.println (“UMUC”);

System.out.print (“!”);

}

}

Question 15 options:

	WelcometoUMUC
	Welcome to UMUC
	Welcome to UMUC !
	No output as the code will not compile.
	None of the above

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Question 16 (1 point)

What Java keyword can used to create a named constant?

Question 16 options:

	static
	default
	final
	enum
	public

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Question 17 (1 point)

If we declared the following variables in Java

int age = 27;           int cafe = 0xCAFE;      int number1 =0b0001;   What is the output for the following Java statement?

System.out.println(age + cafe + number1);

Question 17 options:

	2720001
	51994
	54,false,A5194327
	None of the above

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Question 18 (1 point)

A non-local boolean variable is declared with the following Java code:

boolean myVar;

What is the value of myVar?

Question 18 options:

	true
	false
	null
	Unknown
	None of the above

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Question 19 (1 point)

Given the following sequence of Java code: int var1 = 4; int var2 = 6; int var3 = 10; int results = (var1 + var2) * var3 /(var1 + var3) – var2%var1; What is the values of results after executing the code?

Question 19 options:

	6
	5
	-2
	9
	None of the above

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Question 20 (1 point)

Given the following sequence of Java code: int var1 = 9; int var2 = 12; int var3 = 12; Which of the following statements evaluate to true

Question 20 options:

	(var1 == var2) || (var1 < var2)
	(var1 == var2) && (var1 < var2)
	!(var2 == var3)
	(var2 <= var3) && (var2 < var1)
	None of the above

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Question 21 (1 point)

What is the filename extension used for all Java source files.

Question 21 options:

	.js
	.java
	.javac
	.cs
	None of the above

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Question 22 (1 point)

From the list of Java variable names below, select the illegal variable name.

Question 22 options:

	K149a$
	2ForMe
	XXXXXXXXXXXXXXYYYYYYYYYYYYYYYzzzzzzzzzzzzzzzz
	Johns1290sX4k
	NoneForYou

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Question 23 (1 point)

What must be installed on a computer to be able to run bytecodes?

Question 23 options:

	Java Virtual Machine (VM)
	Microsoft Visual Basic
	Ubuntu Server
	Oracle Database (11g or higher)
	None of the above

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Question 24 (1 point)

What is the filename extension used for all Java compiled files.

 

Question 24 options:

	.cs
	.javac
	.bytes
	.class
	None of the above

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Question 25 (1 point)

What development tool do you use to launch Java bytecodes?

Question 25 options:

	java
	javadoc
	javac
	jconsole
	All of the above

 

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Midwest Health Systems

Case Analysis Assignment

In this case, the context is Midwest Health Systems (Midwest) and the scenario is evaluating a enterpise information security architecture. Your analysis of this case will be framed around a number of questions that are presented at the end of this writeup. As laid out in our syllabus, your analysis should, at minimum, meet the “2-why” standard.

While you can find a number of strategies out there for conquering case analyses (many of them are very good), I recommend the approach of reading the case at least once without consideration of the questions. That opens the mind up to absorbing details that might otherwise erroneously get dismissed in a “know the questions, hunt for the answers” type of approach. After that, lay our your outline with each question framing a new major section. Then, re-read the case analysis and as you go through, build the outline of your answer with references to page numbers so you can quickly go back. Once the outline is built, you should have a clean connection between your point and some evidence from the case. At that point, it is a matter of polishing the communication without inadvertently changing the thesis.

The case can be found in your Harvard Coursepack, referenced in the Materials section of our syllabus. The case analysis must be submitted through Blackboard in Microsoft Word or .pdf format before 11:59pm Sunday, March 28th.

Case Analysis Questions:

1. Identify the IT general control risks evident from the case. For each risk identified, identifiy possible controls to mitigate those risks and explain why you believe the control would work.

2. Define residual risk and then identify at least three such risks from the case, mapping those examples conceptually to your definition of residual risk.

3. Do you agree with the audit team’s conclusion that the only significant areas of concern in IT general controls are access security and change management? Please explain your answer at a “2-why” minimum standard.

4. What course(s) of action do you recommend that Nelson take based on your analysis of identified risks and suggested controls?

 

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Initial Post

Kirk (2016) tells us that all requirements and restrictions of a project must be identified.  Select 1 key factor below and discuss why Kirk (2016) states it will impact your critical thinking and shape your ambitions:

• People: stakeholders, audience.
• Constraints: pressures, rules.
• Consumption: frequency, setting.
• Deliverables: quantity, format.
• Resources: skills, technology

Reference: Kirk, Andy. Data Visualisation: A Handbook for Data Driven Design (p. 50). SAGE Publications

first student post

 

I chose “Resources: skills, technology” to discuss why Kirk states it will impact my critical thinking and shape my ambition.
Skills, you must take inventory of the available capabilities on the team. You may take inventory of yourself, on the personal capabilities that you possess. Not only offer what skills you have and what skills you don’t, but also which of these skills are you good at. What skills go you have available as a team and what weaknesses exist. Working as a team some skills can be compensated for or enhanced. By recognizing the available talent in the group, you should choose and place wisely to optimize available resources. The availability and optimal utilization (critical thinking) of skills can shape ambition.

Technology tools are plentiful for data visualization and becoming more and more holistic. Meaning there are some packages that will do almost everything, as a complete suite. In previous times, varying tools were used to accomplish different tasks. Different tasks entailed the many stages of prepping the data, developing the data, and visually presenting the data. Now technological tools accomplish almost every task. However, cleaning the data is sometimes a manual task and may require writing custom code in languages such Python and R. (The R Project for Statistical Computing, 2018)

Skills must be learned, enhanced, and adapted to ever changing technology. Skills must have the underlying principles that are developed as critical thinking when stepping though a process and knowing the correct and efficient direction. Having clear knowledge of data analysis principles allows ambition to grow, knowing you can accomplish the task. Possessing the skills (principle fundamentals and critical thinking), and technology allow you to “embrace the constraints” and “heighten your creative senses and lead to successful, innovative solutions”. (Kirk, 2016)

second student post

 

• People: Stakeholders, audience  One of the most important parts of your stakeholder mapping is to identify the impact a stakeholder can have on the success of your project. Keep it simple. High or low is often enough. The impact that a stakeholder can have is a combination of two things; Their formal authority and also their ability to influence others. At the top of the tree of influence are Apex Stakeholders. They can influence other stakeholders without being easily influenced themselves. Make it your priority to find these people and bring them over to your point of view. Once you do, you will be able to use their influence as a lever to amplify your own.  Stakeholders are a major part of the project. Everything in a project should go the way they want and if not, it would be difficult for the people who worked on the project. These stakeholders can be really helpful in helping secure your future. The ideas and the works that have been found under the supervision of the stakeholders, benefits people and help them in a lot of ways.  Theories, concepts and models of audiences, stakeholders or publics, public relations and communication are important because they help us understand and explain our public relations campaigns and the situations these campaigns address. They determine how we plan and conduct public relations. Thus the different theories we hold will lead to different ways of planning and practicing public relations.

and   Assignment 2

 

Complete the “Police Killings” Exercise located at the following link:

http://book.visualisingdata.com/chapter/chapter-4

Working With Data

 

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1. List the seven OSI layers in the indicated sequence where layer 7 is closest to the end user.

Layer 7:

Layer 6:

Layer 5:

Layer 4:

Layer 3:

Layer 2:

Layer 1:

2. Compare the total number of links in an 11 node network for:

a) Mesh Topology

b) Star Topology (counting the hub as one of the nodes)

c) Ring Topology

d) Bus Topology

3. Which OSI layer, by number or name, is most applicable to the following? (Note: All layers are represented at least once)

__________ a) Addressing messages between two processes

__________ b) Bits:

__________ c) Congestion control:

__________ d) Determine where a frame starts and ends

__________ e) Frames

__________ f) Internet browsers

__________ g) Establishing, maintaining, and terminating a Session:

__________ h) Translation between different coding systems

__________ i) Route Determination

__________ j) Interface to transmission media

4. Use the OSI Model Learning Object to determine which OSI layer, by number or name, is most applicable to the following protocols.

(Note: All layers are represented at least once)

___________a) CDR – Common Data Representation

___________b) IPSec – Internet Protocol Security Protocol

__________ c) WEP – Wired Equivalent Privacy

_________ d) PAP – Password Authentication Protocol

__________ e) SMTP – Simple Mail Transfer Protocol

__________ f) TLS –Transport Layer Security

__________ g) SSH – Secure Shell

__________ h) X.21:a – a specification for serial communications over synchronous lines

 

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