Describe an example of a very poorly implemented database that you've encountered (or read about) that illustrates the potential for really messing things up. Include, in your description, an analysis of what might have caused the problems and potential solutions to them. Be sure to provide citations from the literature.
Answers
Related Questions
A user is asked to type a caption for a photo in a web form's text field. If the caption didn't end with a punctuation mark (. ! ?), a period should automatically be added. A common error is to end with a comma, which should be replaced by a period. Another common error is to end with two periods, which should be changed to one period (however, ending with three periods (or more) indicates elipses so should be kept as is). The corrected caption is output. If the input is "I like pie", the output is "I like pie." If the input is "I like pie!", the output remains "I like pie!" If the input is "Coming soon…", the output remains "Coming soon…"
Answers
Answer:
Here is the c++ program:
#include <iostream> //to use input output functions
using namespace std; //to identify objects cin cout
int main() { //start of main function
string caption; //stores the caption
int last_index; //stores the index position of the last character of caption
char last_character; //stores the last character of the caption
cout<<"Please type a caption: "; //prompts user to enter a caption
getline(cin, caption); //reads the complete line of caption from user
last_index = caption.size() - 1; //sets the last_index to the last character of caption
last_character = caption.at(last_index); //sets the last_character to the last character positioned by last_index
if ((last_character == '!') || (last_character == '?')) {} /* checks if the last character of the caption is either ! or ? and if this statement evaluate to true then this does not require any action */
else if (last_character == ',') { //checks if the last character of the caption is a comma
caption.at(last_index) = '.'; } //if the else if condition is true then replace that comma with a period .
else if (last_character != '.') { //checks if the caption does not end with ! ? , .
caption.push_back('.');} //append period to the caption . if above if else condition is true
else if ((last_index > 0) && (last_character == '.') && (caption.at(last_index - 1) == '.')) { //checks if the caption has two periods .
if ((last_index > 1) && (caption.at(last_index - 2) == '.')) {} //checks if the caption has three periods and does nothing if this is true
else { //if caption has two periods
caption.pop_back();}} //removes one period if caption has two periods .
cout << caption << endl;} //displays the caption
Explanation:
I will explain the above program with an example
Lets say user input the caption: I like pie
So
caption = " I like pie"
The first if condition if ((last_character == '!') || (last_character == '?')) evaluate to false because the last character of the caption is not an exclamation mark of a question mark. So the program moves to the next else if statement:
else if (last_character == ',') This statement is also false because the last character of the caption is not a comma. So the program moves to the next else if part.
else if (last_character != '.')
Now this statement evaluate to true because the last character of the caption is not a period . sign. So this part is executed. It has a statement:
caption.push_back('.');
Now this statement uses push_back() method which adds new character i.e. period '.' at the end of the caption string, increasing its length by one.
So the output of the program is:
I like pie.
If the caption = " I like pie!" then this if ((last_character == '!') || (last_character == '?')) condition executes and since it does nothing {} so the caption remains as it is and the output is:
I like pie!
If the caption = "Coming soon…" then this else if ((last_index > 0) && (last_character == '.') && (caption.at(last_index - 1) == '.')) condition executes which checks if the caption has two period. When this condition evaluates to true then the statement inside this else if condition executes which is: if ((last_index > 1) && (caption.at(last_index - 2) == '.')) and this checks if the caption has three periods. Yes the caption has three periods so it does nothing and the caption remains as it is and the output is:
Coming soon…
However if the caption is Coming soon.. with two periods then the else part inside else if ((last_index > 0) && (last_character == '.') && (caption.at(last_index - 1) == '.')) condition executes which is: caption.pop_back(); and this removes one period from the caption and the output is:
Coming soon.
The screenshot of the program and its output is attached.
What type of function does a project management tool have that a task management tool does not?
Question 16 options:
file sharing
progress tracking
commenting
budgeting
Answers
The type of function that a project management tool have that a task management tool does not is commenting.
What purposes does a project management tool serve?Project management tools are a a make up of software made to assist project teams in project planning, project tracking, and project management in order to meet project goals within a given time frame.
Note that the process of overseeing a task throughout its life cycle is known as task management. Planning, testing, tracking, and reporting are all part of it. Both individuals and groups of people can work together and exchange knowledge to attain common goals with the aid of task management.
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Which development approach was used in the article, "Protecting American Soldiers: The Development, Testing, and Fielding of the Enhanced Combat Helmet"? Predictive, adaptive or Hybrid
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The sequential and predetermined plan known as the waterfall model is referred to as the predictive approach.
What is the development approachThe process entails collecting initial requirements, crafting a thorough strategy, and implementing it sequentially, with minimal flexibility for modifications after commencing development.
An approach that is adaptable, also referred to as agile or iterative, prioritizes flexibility and cooperation. This acknowledges that needs and preferences can evolve with time, and stresses the importance of being flexible and reactive to those alterations.
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The development approach that was used in the article "Protecting American Soldiers: The Development, Testing, and Fielding of the Enhanced Combat Helmet" is Hybrid approach. (Option C)
How is this so?The article "Protecting American Soldiers: The Development, Testing, and Fielding of the Enhanced Combat Helmet" utilizes a hybrid development approach,combining aspects of both predictive and adaptive methods.
Predictive development involves predefined planning and execution, suitable for stable projects,while adaptive methods allow for flexibility in adapting to changing requirements and environments.
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Question 1.
In her bid to convey information on the age structure of patients attending a hospital over the years
to the management of the hospital, a bio-statistician at the hospital constructed the multiple bar chart
shown in Figure 1 for the period 2011-2016. The data for each year (201X, where X = 1,2,..., 6)
has the structure shown in Table 1.
60
50
Proportion of age group reporting (%)
0 10 20 30 40
0-4
Table 1: Age distribution.
Age Group
5
15
45
14
44
59
2 60
2011
0-4
2012
2013
2015
Year
Fig 1: Bar chart showing the proportion of each age
group reporting at the hospital from 2011 to 2016
ZUZZIZUZ3
925
901
4213
☐5-14 O 15-44 45-59 >60
Number of Patients
(n.)
153
76
2014
Size of Age Group
in Catchment Area
(N₁)
4675
5762
7253
635
549
2016
Proportion
(n./N,)x100%
19.78
15.63
58.08
23.93
13.84
The values under n,, N, and (n/N, ) x 100% for the above table are not real, they are
presented here for reasons of clarity.
i. Explain why the use of the proportions (n/N) x 100%, i=1,2,... 5, in the construction of
the multiple bar chart is comparatively better than the use of the number of patients, (n.).
Answers
Using proportions (n/N) x 100% in the construction of the multiple bar chart is better than using the number of patients (n) for several reasons, as it allows for easy comparison between different age groups and different years.
What is bar chart?In a bar chart, numerical levels of a classified feature are represented by bars. Values are plotted on one axis of the chart, and levels are plotted on the other.
With the numerous bar chart, proportions (n/N) x 100% are preferable to the patient count (n) for a number of reasons.
It enables simple comparisons between various age groups and years.A better way to portray the underlying population is through proportions.Changes in the total number of patients reporting to the hospital have less of an impact on proportions.Generally, using proportions (n/N) x 100% rather than the total number of patients is a more acceptable and effective way to depict the age distribution of patients visiting a hospital over time (n).
Thus, multiple bar chart is better than using the number.
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After running an algorithm that you wrote, you find that you have made a
mistake. What likely happened to make you realize this?
Answers
Answer: First, we can't run an algorithm it's just the syntax or the structure that you write on paper (file editor) before you translate it into an actual program code using a programming language (C, Python, Php, C# ...)
After running an algorithm that you wrote, you find that you have made a mistake. An unexpected outcome was reached with likely happened to make you realize this.
What does a set of rules produce?In the maximum well-known sense, a set of rules is a sequence of commands telling a laptop a way to rework a fixed of records approximately the arena into beneficial facts.
The records are data, and the beneficial facts is know-how for people, commands for machines or enter for some other algorithms software.It is noted that if the output is correct then the algorithm is correct.
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Draw a third domain model class diagram that assumes a listing might have multiple owners. Additionally, a listing might be shared by two or more agents, and the percentage of the com- mission that cach agent gets from the sale can be different for cach agent
Answers
The required third domain model class diagram is attached accordingly.
What is the explanation of the diagram?The third domain model class diagram represents a system where a listing can have multiple owners and can be shared by multiple agents.
Each agent may receive a different percentage of the commission from the sale.
The key elements in this diagram include Author, Library, Book, Account, and Patron. This model allows for more flexibility in managing listings, ownership, and commission distribution within the system.
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3
Drag each label to the correct location on the image.
An organization has decided to initiate a business project. The project management team needs to prepare the project proposal and business
justification documents. Help the management team match the purpose and content of the documents.
contains high-level details
of the proposed project
contains a preliminary timeline
of the project
helps to determine the project type,
scope, time, cost, and classification
helps to determine whether the
project needs meets business
needs
contains cost estimates,
project requirements, and risks
helps to determine the stakeholders
relevant to the project
Project proposal
Business justification
Answers
Here's the correct match for the purpose and content of the documents:
The Correct Matching of the documentsProject proposal: contains high-level details of the proposed project, contains a preliminary timeline of the project, helps to determine the project type, scope, time, cost, and classification, helps to determine the stakeholders relevant to the project.
Business justification: helps to determine whether the project needs meet business needs, contains cost estimates, project requirements, and risks.
Please note that the purpose and content of these documents may vary depending on the organization and specific project. However, this is a general guideline for matching the labels to the documents.
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A Quicksort (or Partition Exchange Sort) divides the data into 2 partitions separated by a pivot. The first partition contains all the items which are smaller than the pivot. The remaining items are in the other partition. You will write four versions of Quicksort:
• Select the first item of the partition as the pivot. Treat partitions of size one and two as stopping cases.
• Same pivot selection. For a partition of size 100 or less, use an insertion sort to finish.
• Same pivot selection. For a partition of size 50 or less, use an insertion sort to finish.
• Select the median-of-three as the pivot. Treat partitions of size one and two as stopping cases.
As time permits consider examining additional, alternate methods of selecting the pivot for Quicksort.
Merge Sort is a useful sort to know if you are doing External Sorting. The need for this will increase as data sizes increase. The traditional Merge Sort requires double space. To eliminate this issue, you are to implement Natural Merge using a linked implementation. In your analysis be sure to compare to the effect of using a straight Merge Sort instead.
Create input files of four sizes: 50, 1000, 2000, 5000 and 10000 integers. For each size file make 3 versions. On the first use a randomly ordered data set. On the second use the integers in reverse order. On the third use the
integers in normal ascending order. (You may use a random number generator to create the randomly ordered file, but it is important to limit the duplicates to <1%. Alternatively, you may write a shuffle function to randomize one of your ordered files.) This means you have an input set of 15 files plus whatever you deem necessary and reasonable. Files are available in the Blackboard shell, if you want to copy them. Your data should be formatted so that each number is on a separate line with no leading blanks. There should be no blank lines in the file. Even though you are limiting the occurrence of duplicates, your sorts must be able to handle duplicate data.
Each sort must be run against all the input files. With five sorts and 15 input sets, you will have 75 required runs.
The size 50 files are for the purpose of showing the sorting is correct. Your code needs to print out the comparisons and exchanges (see below) and the sorted values. You must submit the input and output files for all orders of size 50, for all sorts. There should be 15 output files here.
The larger sizes of input are used to demonstrate the asymptotic cost. To demonstrate the asymptotic cost you will need to count comparisons and exchanges for each sort. For these files at the end of each run you need to print the number of comparisons and the number of exchanges but not the sorted data. It is to your advantage to add larger files or additional random files to the input - perhaps with 15-20% duplicates. You may find it interesting to time the runs, but this should be in addition to counting comparisons and exchanges.
Turn in an analysis comparing the two sorts and their performance. Be sure to comment on the relative numbers of exchanges and comparison in the various runs, the effect of the order of the data, the effect of different size files, the effect of different partition sizes and pivot selection methods for Quicksort, and the effect of using a Natural Merge Sort. Which factor has the most effect on the efficiency? Be sure to consider both time and space efficiency. Be sure to justify your data structures. Your analysis must include a table of the comparisons and exchanges observed and a graph of the asymptotic costs that you observed compared to the theoretical cost. Be sure to justify your choice of iteration versus recursion. Consider how your code would have differed if you had made the other choice.
Answers
The necessary conditions and procedures needed to accomplish this assignment is given below. Quicksort is an algorithm used to sort data in a fast and efficient manner.
What is the Quicksort?Some rules to follow in the above work are:
A)Choose the initial element of the partition as the pivot.
b) Utilize the same method to select the pivot, but switch to insertion sort as the concluding step for partitions that contain 100 or fewer elements.
Lastly, Utilize the same method of pivot selection, but choose insertion sort for partitions that are of a size equal to or lesser than 50 in order to accomplish the task.
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You read an article that says:
A recent study argued that college students should be paid for playing sports. It calculated that a typical basketball player is worth over $265,000 to his or her alma mater, while a college football player has a value of over $120,000. <\/font>
Open a new tab so you can search. What is the title of the original study on which this article is based?
Answers
this article is based on grid computing Short descriptions of the article's content are given in the title. Each word is selected with care to provide the most details in the fewest amount of space.
What is the study's article's title?The title encapsulates the key notion or ideas of your research. The shortest title feasible should accurately convey the subject matter and/or goal of your research paper.
How does the article's title translate?The title identifies the topic of the article and sets it apart from similar topics. In cases where the topic of the article lacks a name, the title may simply be the name (or a name) of the subject of the article, or it may be a description of the topic.
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Read the following Python code:
pets = 2
binaryPets = bin(pets)
print(binaryPets)
Which of the following is the correct output? (5 points)
0b10
0d10
0p10
0x10
Answers
The correct output for the given Python code would be option A: 0b10.
What is the Python code?The value 2 is assigned to the variable named "pets" in the provided Python code. Afterwards, the decimal value of pets (2) is transformed into binary format through the utilization of the bin() function. The function bin() produces a binary value in string form, and adds the prefix "0b" to indicate this.
Thus, the result displayed for binaryPets upon printing will be 0b10. Indicating that a value is in binary format is done by adding the prefix '0b'. In binary, the decimal value 2 is represented by 10.
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1. Explain the benefits and drawbacks of using C++ and Visual Studio in a coding project.
2. Explain the benefits and drawbacks of using Java and Eclipse or Python and PyCharm in a coding project.
3. Describe the advantages of being able to code in multiple coding languages and compilers.
Answers
Answer:
1. The benefits of using C++ and Visual Studio in a coding project include the availability of a wide range of libraries and tools, the ability to create high-performance applications, and the ability to customize the code as needed. Drawbacks include the complexity of the language and the potential for memory leaks.
2. The benefits of using Java and Eclipse or Python and PyCharm in a coding project include the availability of a large number of libraries and tools, the ability to create high-level applications quickly, and the relative simplicity of the language. Drawbacks include the potential for code to become bloated and the lack of support for certain features.
3. The advantages of being able to code in multiple coding languages and compilers include the ability to use different languages and tools for different tasks, the ability to switch between languages quickly, and the ability to take advantage of the strengths of each language. Additionally, coding in multiple languages can help to increase one's overall coding knowledge and skills.
Explanation:
Journalize the following transactions using the direct write-off method of accounting for uncollectible receivables.
April. 1 Sold merchandise on account to Jim Dobbs, $7,200. The cost of goods sold is $5,400.
June 10 Received payment for one-third of the receivable from Jim Dobbs and wrote off the remainder.
Oct. 11 Reinstated the account of Jim Dobbs and received cash in full payment.
Answers
The journal entry for the transactions will be:
1st April
Debit Account receivables $7200
Credit Sales $7200
(To record sales)
Debit Cost of goods sold $5400
Credit Inventory $5400
(To record cost of goods sold)
10th June
Debit Cash $2400
Credit Account receivable $2400
(To record cash received from customer)
Debit Allowance for uncollectible items $4800
Credit Account receivable $4800
(To record write-off)
11th October
Debit Account receivable $4800
Credit Allowance for uncollectible items $4800
( To record reinstatement of account)
Debit Cash $4800
Credit Account receivable $4800
( To record full cash gotten from customer)
The account receivable on 10th June was calculated as:
= (1/3 × $7200) = $2400
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Which of the following statements are true about how technology has changed work? Select 3 options. Responses Businesses can be more profitable by using communication technology to reduce the costs of travel. Businesses can be more profitable by using communication technology to reduce the costs of travel. With the spread of technology and the Internet, smaller businesses are not able to compete as effectively as before. With the spread of technology and the Internet, smaller businesses are not able to compete as effectively as before. In a gig economy, workers are only hired when they are needed for as long as they are needed. In a gig economy, workers are only hired when they are needed for as long as they are needed. Through the use of the Internet and collaboration tools more workers are able to perform their jobs remotely. Through the use of the Internet and collaboration tools more workers are able to perform their jobs remotely. Technology has not really changed how businesses operate in the last fifty years. Technology has not really changed how businesses operate in the last fifty years.
Answers
The three genuine statements almost how technology has changed work are:
Businesses can be more productive by utilizing communication technology to decrease the costs of travel. This can be genuine since advances like video conferencing and virtual gatherings permit businesses to conduct gatherings, transactions, and collaborations remotely, lessening the require for costly travel courses of action.With the spread of technology and the Web, littler businesses are not able to compete as successfully as some time recently. This explanation is genuine since innovation has empowered bigger companies to use their assets and reach a worldwide advertise more effortlessly, making it challenging for littler businesses to compete on the same scale.Through the utilize of the Web and collaboration devices, more laborers are able to perform their occupations remotely. This explanation is genuine as innovation has encouraged farther work courses of action, allowing employees to work from anyplace with an online association. Collaboration instruments like extend administration computer program and communication stages have made inaccessible work more doable and effective.Technology explained.
Technology alludes to the application of logical information, aptitudes, and devices to form innovations, fathom issues, and move forward proficiency in different spaces of human movement. It includes the improvement, usage, and utilize of gadgets, frameworks, and processes that are outlined to achieve particular assignments or fulfill specific needs.
Technology can be broadly categorized into distinctive sorts, such as data technology, communication technology, therapeutic innovation, mechanical technology, and transportation technology, among others. These categories include different areas, counting computer science, hardware, broadcast communications, building, and biotechnology.
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What are the basic steps in getting a platform up and running?
Answers
The basic steps in getting a platform up and running are:
Set and know your intended community. Then Define the features and functions to be used.Select the right technology and create a structure. Then set up Activity Stream.Make Status Update Features. How do I build a platform for business?There are a lot of key principles to look into when making a platform.
Note that the very First step in platform creation is that one need to start with the aim of helping in the interaction between people or users, the producer and the consumer.
Thus, It is the exchange of value that tends to bring more users to the platform.
Therefore, The basic steps in getting a platform up and running are:
Set and know your intended community. Then Define the features and functions to be used.Select the right technology and create a structure. Then set up Activity Stream.Make Status Update Features.Learn more about platform creation from
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what are the benefits and drawbacks of a desktop utilising virtualisation and a server?
Answers
•Cons of Virtualization. High Initial Investment. Data Can be at Risk. Quick Scalability is a Challenge. Performance Witnesses a Dip.
•Pros of Virtualization. Uses Hardware Efficiently. Available at all Times. Recovery is Easy. Quick and Easy Setup. Cloud Migration is Easier.
Mark as brainlest answer!!!!!If you delete a shortcut from your desktop, have you also deleted the original file?
Answers
Answer:
no
Explanation:
it just deletes the icon.
Answer:
Nope!
Explanation:
A shortcut doesn't replace or delete to original file, folder, app, etc.
help pls asaap why do teens spend to much time on electronics
Answers
Answer:
Becuase we want to cause it fun and because of classes
Explanation:
Question 5) What is a feature of podcasts?
A.
They rely on airwaves for broadcasting.
B.
They are inexpensive to produce.
C.
They are accessible only within a specific area.
D.
They require video equipment to create.
E.
They allow easy access to documents.
Answers
Answer: B
Explanation: They are inexpensive to produce.
Which Trust Center option is unsafe? enable all macros disable all macros with notification disable all macros without notification enable all macros except digitally signed macros
A ENABLE ALL MACROS
Answers
Security risks are possible with some macros. People with malevolent intentions frequently use macros to covertly install malware, including viruses, on your pc or into the network of your company.
How can I make all of Excel's macros active?In the very bottom of the left bar, under the File tab, select Options. Select Trust Center from the left-side pane and then click Able To provide the services Settings. Click Macro Options on the left in the Able To provide the services dialogue box, choose Enable all macros, and then click OK.
Should I make all of my Excel macros active?Activate all macros (not recommended, potentially dangerous code can run) To allow any macros to run, select this option. It is not advised to use this setting since it leaves your computer open to possibly harmful code.
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Answer:
it's A
Explanation:
Describe a NIC card and can you have more than one?
Answers
An NIC card (network interface controller), is a hardware component which connects a computer to a computer network.
Every computer must have at least one NIC card to connect to the internet, but computers can hold more than one.
Which of the following commands appears in the INSERT menu or tab?
Question 4 options:
Table
Bold
Line Spacing
Undo/Redo
Answers
Answer:
Table
Explanation:
Table commands appears in the INSERT menu or tab. Hence option a is correct.
What are commands?Commands are defined as a request for a computer software to carry out a particular task. It could be sent via a command-line interface, such as a shell, as input to a network service as part of a network protocol, as an event in a graphical user interface triggered by the user selecting an item from a menu, or as a command transmitted over a network to a computer.
The Insert tab allows you to add a variety of components to a document. Tables, word art, hyperlinks, symbols, charts, a signature line, the date and time, shapes, headers, footers, text boxes, links, boxes, equations, and other elements are examples of these. You can enhance your document by adding images, shapes, SmartArt graphics, tables, and more on the INSERT tab.
Thus, Table commands appears in the INSERT menu or tab. Hence option a is correct.
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Relating to Blue Cross Blue shield billing notes what are some medical terms with corresponding billing rules
Answers
Relating to Blue Cross Blue shield billing notes what are some medical terms with corresponding billing rules are:
1. Diagnosis Codes
2. CPT Codes
3. E/M Codes
4. HCPCS Codes
5. Place of Service Codes
How is this so?1. Diagnosis Codes - These are alphanumeric codes from the International Classification of Diseases, 10th Revision (ICD-10), used to describe the patient's medical condition. They are essential for accurate billing and reimbursement.
2. CPT Codes - Current Procedural Terminology (CPT) codes are five-digit numeric codes that represent specific medical procedures, treatments, or services provided to the patient. These codes are used to determine reimbursement rates.
3. E/M Codes - Evaluation and Management (E/M) codes are a subset of CPT codes that specifically represent the time and complexity involved in assessing and managing a patient's medical condition during an office visit or consultation.
4. HCPCS Codes - Healthcare Common Procedure Coding System (HCPCS) codes are alphanumeric codes used to identify specific medical supplies, equipment, and services not covered by CPT codes. These codes are often used for durable medical equipment or outpatient procedures.
5. Place of Service Codes - These codes indicate where the healthcare service was rendered, such as an office, hospital, or clinic. They help determine the appropriate reimbursement rate based on the location of the service.
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assuming a 1-kb page size, what are the page numbers and offsets for the following address references (provided as decimal numbers)? (a) 21205 (b) 164250 (c) 121357 (d) 16479315 (e) 27253187
Answers
Note that the Page numbers and offsets for the following address references given a 1-kb page size are:
a) Address: 21205 → Page number: 20, Offset: 905
b) Address: 164250 → Page number: 161, Offset: 202
c) Address: 121357 → Page number: 119, Offset: 333
d) Address: 16479315 → Page number: 16093, Offset: 659
e) Address: 27253187 → Page number: 26708, Offset: 963.
What is an offset and an address reference?Note that an offset is a numerical value that represents the distance of a particular location within a file, block of memory, or other data structure from a reference point. It is often used to specify the location of a particular piece of data within a larger structure.
An address reference is a value that represents the location of a specific piece of data within a computer's memory.
To determine the page numbers and offsets for the given address references, you will need to divide the address by the page size. The page number will be the result of the division, and the offset will be the remainder.
Thus, for a:
Address: 21205 → Page number: 21205 / 1024 = 20,
Offset: 21205 % 1024 = 905
for b,
Address: 164250 → Page number: 164250 / 1024 = 161, Offset: 164250 % 1024 = 202
for c,
Address: 121357 → Page number: 121357 / 1024 = 119,
Offset: 121357 % 1024 = 333
for d,
Address: 16479315 => Page number: 16479315 / 1024 = 16093,
Offset: 16479315 % 1024 = 659
for e,
Address: 27253187 => Page number: 27253187 / 1024 = 26708,
Offset: 27253187 % 1024 = 963
In conclusion,
a) Address: 21205 → Page number: 20, Offset: 905
b) Address: 164250 → Page number: 161, Offset: 202
c) Address: 121357 → Page number: 119, Offset: 333
d) Address: 16479315 → Page number: 16093, Offset: 659
e) Address: 27253187 → Page number: 26708, Offset: 963.
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As you know computer system stores all types of data as stream of binary digits (0 and 1). This also
includes the numbers having fractional values, where placement of radix point is also incorporated along
with the binary representation of the value. There are different approaches available in the literature to
store the numbers having fractional part. One such method, called Floating-point notation is discussed in
your week 03 lessons. The floating point representation need to incorporate three things:
Sign
Mantissa
Exponent
In the video lessons, 8-bit storage is used to demonstrate the working of floating point notation with the
help of examples where 8-bit storage is divided as:
1 bit for Sign.
3 bits for Exponent.
4 bits for Mantissa (the mantissa field needs to be in normalized form as discussed in the video
lesson).
For the discussed 8-bit floating point storage:
A. Encode the (negative) decimal fraction -9/2 to binary using the 8-bit floating-point notation.
B. Determine the smallest (lowest) negative value which can be incorporated/represented using the
8-bit floating point notation.
C. Determine the largest (highest) positive value which can be incorporated/represented using the 8-
bit floating point notation.
Note: You need to follow the conventions (method) given in the video lessons for the solution of this
question. Any other solution, not following the given convention, will be considered incorrect.
Answers
One of the four different number systems is the binary number system, which is used to define numbers.
Thus, A binary number system only uses the digits 0 (zero) and 1 (one) to represent a number. The prefix "bi" denotes "two" in the term "binary". As a result, this brings the discussion back to the use of simply the digits 0 and 1 to represent numbers.
Binary numbers are represented using the base-2 numeral system. An example of a binary number is (1101)2 where 2 is the radix. A "bit" is referred to as each digit in the binary numeral system.
In many computers, this numbering scheme is employed. A computer decodes every input that is provided to it.
Thus, One of the four different number systems is the binary number system, which is used to define numbers.
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So this one is puzzling me and my boss asked if I could look into it. She received an email from Ulta beauty about a big sale they were having that only lasted a few hours. She went back later in the day and pulled up the exact same email and the text/picture inside the body of the email had magically changed saying "this event has ended." So how is that possible? How can the text change in an email already sent?? Help me understand!
Answers
Normally we cannot edit email that already sent but , we can edit mail through:
Click Sent Items in the Navigation Pane of Mail.
How can we edit email?e-mail, or electronic mail, refers to messages sent and received by digital computers via a network. An e-mail system allows computer users on a network to communicate with one another by sending text, graphics, sounds, and animated images.Open the message you want to replace and recall. Click Other Actions in the Actions group on the Message tab, and then click Recall This Message. Delete unread copies and replace with a new message or Delete unread copies and replace with a new message are the options.To learn more about email refer to :
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An internet download speed is 4.2 MB/S (constant). How long will it take to download a 30 GB file?
And with 900 KB/S?
Answers
Answer:
(a) \(Time= 119.05 \ min\)
(b) \(Time= 9.26\ hr\)
Explanation:
Given
\(File = 30GB\)
Required
Download time
Solving (a): When Speed =4.2Mb/s
Speed is calculated as:
\(Speed = \frac{File\ Size}{Time}\)
Make Time the subject:
\(Time= \frac{File\ Size}{Speed }\)
Substitute values for File Size and Speed
\(Time= \frac{30Gb}{4.2Mb/s}\)
Convert Gb to Mb
\(Time= \frac{30*1000Mb}{4.2Mb/s}\)
\(Time= \frac{30000s}{4.2}\)
Convert to minutes
\(Time= \frac{30000}{4.2*60}\ min\)
\(Time= \frac{30000}{252}\ min\)
\(Time= 119.05 \ min\)
When converted, it is approximately 2 hours
Solving (a): When Speed =900Kb/s
\(Time= \frac{File\ Size}{Speed }\)
Substitute values for File Size and Speed
\(Time= \frac{30Gb}{900Kb/s}\)
Convert Gb to Kb
\(Time= \frac{30*1000000Kb}{900Kb/s}\)
\(Time= \frac{30*1000000s}{900}\)
\(Time= \frac{1000000s}{30}\)
\(Time= \frac{100000}{3}s\)
Convert to hours
\(Time= \frac{100000}{3*3600}hr\)
\(Time= \frac{1000}{3*36}hr\)
\(Time= \frac{1000}{108}hr\)
\(Time= 9.26\ hr\)
Answer:
(a)
(b)
Explanation:
Given
Required
Download time
Solving (a): When Speed =4.2Mb/s
Speed is calculated as:
Make Time the subject:
Substitute values for File Size and Speed
Convert Gb to Mb
Convert to minutes
When converted, it is approximately 2 hours
Solving (a): When Speed =900Kb/s
Substitute values for File Size and Speed
Convert Gb to Kb
Convert to hours
The degree of a point in a triangulation is the number of edges incident to it. Give an example of a set of n points in the plane such that, no matter how the set is triangulated, there is always a point whose degree is n−1.
Answers
Answer:
squarepentagonExplanation:
The vertices of a square is one such set of points. Either diagonal will bring the degree of the points involved to 3 = 4-1.
The vertices of a regular pentagon is another such set of points. After joining the points in a convex hull, any interior connection will create a triangle and a quadrilateral. The diagonal of the quadrilateral will bring the degree of at least one of the points to 4 = 5-1.
Hundreds of endpoints were not updated with the latest OS and patches. Identify an administrative control to remediate outdated operating systems and patches.
Answers
Implementing a regular patch management policy, with a schedule for updating all endpoints and enforcing compliance through configuration management or other tools.
What is patch management policy?Patch management rules are a set of standards that guarantee patching is managed, efficient, and secure. These instructions outline the actions and procedures to be followed when fixing bugs and vulnerabilities. There are several sorts of patches, such as security patches, hotfixes, and service packs.
Patch management is the process of updating software, drivers, and firmware to prevent vulnerabilities. Effective patch management also ensures that systems run at peak performance, increasing productivity.
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What method is used to ensure proper ventilation in a server room?
Internal cooling systems
Maintaining a steady temperature
Hot and cold aisles
Internal fans
Answers
A method which is used to ensure proper ventilation in a server room is: C. Hot and cold aisles.
What is a server?A server can be defined as a dedicated computer system that is designed and developed to provide specific services to other computer devices or programs, which are commonly referred to as the clients.
What is a server room?In Computer technology, a server room is also referred to as a data center and it can be defined as a dedicated space (room) that is typically used for keeping a collection of servers and other network devices.
Generally, hot and cold aisles are often used in server rooms (data centers) to ensure proper ventilation, especially by removing hot air and pushing cool air into the server room.
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to be useful for most household applications, DC voltage is?please
Answers
Answer: To be useful for most household applications, DC voltage is passed through a step-down transformer.
Explanation: Voltage coming through AC or DC outlets is typically far too high for most household appliances to handle, so the current is passed through a step-down transformer to reduce the voltage to a usable level.