Michael Dell was just a sophomore when he began building computers in his dorm room at the university of Texas. His firm would one day claim the top spot among pc manufacturers worldwide.
Michael Saul Dell, a multibillionaire businessman and philanthropist from the United States, was born on February 23, 1965. He is the company's founder, chairman, and CEO. Dell Technologies is one of the biggest global providers of technology infrastructure. According to the Bloomberg Billionaires Index, he had a net worth of $60 billion as of February 2022, placing him as the 20th richest person in the world.
In January 1984, Dell staked his business on his premise that a manufacturer selling PCs directly had significant financial advantages over the traditional indirect retail route.
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Which term refers to a unique combination of a user name and an associated password?
User account is the term that refers to the unique combination of username and associated password. That is one of the best techniques to authenticate the user in order to give access to the system and use resources.
A username always paired with a password is stored in a database. They both together make a unique combination that is referred to as a user account. The user account uniquely identifies each user and grants the user access to the system.
For example, a computer system is set up with multiple users' accounts, with different usernames and passwords for each account. The respective user can only access the computer system through their particular user account, which is the unique combination of the username and the password.
Similarly, e-mail services also require users to make a user account with a combination of unique username and associated password in order to use email services. So, whenever users want to access their respective email user account, it is required to enter username and password. Access is granted only when both the username and password is entered correctly.
It may be possible that username appears on the screen but password is always kept secret by the systems/applications. By keeping the password private, a secure user account is created because only the authorized access is granted.
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What in your view has led to the success of cloud computing? identify and describe at least three major technologies that have made the cloud possible and provide your rationale for selection.
The success of cloud computing occurred due to the cost reducing, flexible, redundancy and reliability, scalability, collaboration, efficiency, virtually and availability as critical success factors as the impact of the use of cloud computing for organizations.
Three major technologies that have made the cloud possible and provide your rationale for selection.
1. Infrastructure as a Service (IaaS):
IaaS essentially encourages access rather than ownership. This solution offers the end user options when it comes to hosting both standard software and programmes that have been developed specifically for them, as well as a generic data centre for storage.
2. Platform as a Service (PaaS):
Organizations may create, run, and manage apps without the need for IT infrastructure thanks to platform as a service (PaaS). Application development, testing, and deployment are made simpler and faster as a result.
3. Software as a Service (SaaS):
Software that is licenced on a subscription basis is used in place of conventional on-device software in software as a service (SaaS). It is hosted centrally on the cloud. Salesforce.com is a prime illustration.
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What is the advantage of the javascript facility localstorage object compared to cookies?
There are many advantages that the localstorage object has over cookies. First, localstorage is more secure since it is not sent back and forth between the server and the client like cookies are. This means that potential hackers cannot intercept and read localstorage data like they can with cookies.
Another advantage of localstorage is that it can store more data than cookies. While cookies are limited to 4KB, localstorage can store up to 5MB. This makes localstorage much more versatile and suitable for storing larger amounts of data.
Lastly, localstorage data is persistent, meaning it remains stored even after the browser is closed. In contrast, cookies are only stored temporarily and are deleted when the browser is closed. This makes localstorage ideal for storing data that needs to be accessed again later.
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What is the term for workforces like those at the company uber, where freelancers and independent contractors work when they can, on what they want to work on, and when the company needs them?
Workforces like those at uber, where independent contractors and freelancers work when they can, on what they want to work on, and when the organization needs them, are known as on-demand workforces.
On-demand employees can pick when they are available to work based on their own schedules and are occasionally just hired for a few hours. Knowing the various types of on-demand work and how they differ is important for both employers who are thinking about hiring on-demand workers and employees who are considering conducting on-demand work.
In order to have staff available when needed and to give employees a flexible schedule, on-demand employees are becoming more and more common.
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Bluetooth technology can be used to create a wireless connection between the motherboard and a keyboard.
true/ false
It is true that a wireless connection between a keyboard and a motherboard can be made using Bluetooth technology.
A short-range wireless technology standard called Bluetooth is used to create personal area networks and exchange data over short distances between stationary and mobile devices (PANs).
Bluetooth is mostly used as an alternative to wired connections, to transfer files between adjacent portable devices, and to pair wireless headphones with cell phones and music players. Transmission power in the most popular mode is restricted to 2.5 milliwatts, giving it a fairly short range of up to 10 meters (33 ft).
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Wants to test a program he suspects may contain malware. what technology can he use to isolate the program while it runs?
If he wants to test a program he suspects may contain malware, then the technology he can use to isolate the program while it runs is, B.Sandboxing.
Sandboxing can be described as a type of technology that uses the phenomenon of isolation to segregate a suspected file or program and then observes that distrustful program. If the program exhibits threatful activity under observation then it is removed so that the system can be protected by inhibiting its spread. Hence, the correct option is Sandboxing
On the other hand, Address Space Layout Randomization (ASLR) does not involve isolation as it just functions by arbitrarily organizing the address space locations to protect the memory contents. Hence, ALR Address Space Layout Randomization is not the correct option.
Process isolation usually is not involved in protection purposes as it just prevents the overlapping of different processes so that they do not intermix with each other. Hence, Process isolation is not the correct option.
Although a part of your question is missing, you might be referring to this question:
Joe wants to test a program he suspects may contain malware. What technology can be used to isolate the program while it runs?
A. ASLR Address Space Layout Randomization
B. Sandboxing
C. Clipping
D. Process isolation
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A secure username and password provide complete computer security.
a. true
b. false
Keeping a secure username and password cannot provide complete security to computer systems. The correct option to this question is b i.e false.
Keeping secure username and password do not guarranty to provide complete security to your computer system. However, secure username and password offer the first line of defense against unauthorized access to computers. Because no matter how secure a username and password is, it can be stolen and ha-cked.
With the advancement in ha-cking techniques, secure username and password can be easily stolen. However, keeping a secure username and having a strong password gives you some edge of protection but it does not provide you complete protection from unauthorized access. Your computer username and password can be easily accessible by ha-ckers via BIOS attack or other techniques.
However, in web-based applications, or in mobile apps you should enable two-factor authentication while keeping a secure username and password from the security perspective.
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Which of the following defines the disadvantage of arrays? A. Adding new values make the structure complex. B.It is not possible to change the length or data types of arrays at runtime. C. It is difficult to access the values between. D. Arrays are dynamic; therefore, they consume more memory when they are to be created. 7
The option that defines the disadvantage of arrays is B. It is not possible to change the length or data types of arrays at runtime.
What are the disadvantages of an array?Everything that has merit do have demerit. The disadvantages of arrays is that Arrays are known to be made up of a fixed size.
When a person do insert elements that are known to be less than the the given or allocated size, unoccupied positions are unable to be used forthwith or again. Wastage will happen a lot in memory.
Therefore, based on the above, The option that defines the disadvantage of arrays is B. It is not possible to change the length or data types of arrays at runtime.
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Describe each of the following types of memory and how they have advanced modern computing.
a. capacitor memory
b. cathode ray tube memory
c. ferrite core memory
d. semiconductor dynamic ram
The types of memory are capacitor memory, cathode ray tube memory, ferrite core memory, and semiconductor dynamic ram.
a. Capacitor memory:
Regenerative capacitor memory is a kind of computer memory that stores data bits using the electrical property of capacitance. These memories must be frequently refreshed (also known as regenerated) to prevent data loss because the stored charge gradually drains away.
b. Cathode ray tube memory:
When a dot drawn on a cathode ray tube (CRT) screen produces a positive charge encircled by a negatively charged region, storage happens. The information can be read by inducing a positive voltage pulse in a metal plate that is attached to the tube's face.
c. Ferrite core memory:
The transformer cores for core memory are toroids (rings) made of a hard magnetic substance, typically a semi-hard ferrite, with each wire passing through the core acting as a transformer winding.
Each core is traversed by two or more wires. Each of the cores has the ability to "remember" or store a state thanks to magnetic hysteresis.
d. Semiconductor dynamic ram:
The data or programme code required by a computer processor to function is often stored in dynamic random access memory (DRAM), a type of semiconductor memory. DRAM is a popular variety of random access memory (RAM) that is utilised in servers, workstations, and personal computers (PCs).
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For questions 1–3, use context clues to determine the meaning of the bold underlined word.
The tundra, which is a treeless plain, makes up the physical landscape of the nothern hemisphere.
What does tundra mean?
A. landscape
B. weather
C. treeless plain
D. location
Suppose a process is running and has eight user-level threads in it. when the process exits, how many of these threads continue running?
Suppose a process is running and has eight user-level threads in it. When the process exits, the number of threads that would continue running is zero (0).
This is because they all run concurrently and they are independent processes, but they all work together, but do not depend on each other, so if the eight user-level threads have the process stopped, all threads would stop running.
What is a Concurrent Process?This refers to the computing model in which multiple processors execute instructions simultaneously for better performance.
Hence, we can see that Suppose a process is running and has eight user-level threads in it. When the process exits, the number of threads that would continue running is zero (0).
This is because they all run concurrently and they are independent processes, but they all work together, but do not depend on each other, so if the eight user-level threads have the process stopped, all threads would stop running.
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Documentaries that use the camera as an instrument of reportage are called expressionistic documentary. is this statement true or false?
Expressionistic documentaries are those that employ the camera as a tool for reporting. This claim is true.
Expressionist administrators, like their peers in the art world, are more concerned with their own, blatantly subjective view of reality than with how others may perceive it. They can effectively communicate any spiritual or mental truths they feel by warping the fabric world's surface.
The use of distorted and exaggerated angles, excessive colouring, and an atmosphere of dread or foreboding can all be used to identify these images. Beginning in Germany in 1920, expressionist film began to take shape in new ways that were unique from the burgeoning Hollywood production methods.
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What is 15 as a binary number?
OA. 0110
OB. 1111
OC. 1110
OD. 0111
Answer:B) 1111
Explanation:Trust
The input value ____ causes most browsers to display text entered by users as bullets or asterisks rather than showing the actual characters.
The input value password causes most browsers to display text entered by users as bullets or asterisks rather than showing the actual characters.
A password, also called a passcode (on Apple devices, for example), is a confidential piece of information that is used to confirm a user's identity. In the past, knowing a password was a need, but today there are so many password-protected services that it may be challenging to remember a unique password for each one.
The party holding the secret is referred to as the claimant, and the person verifying the claimant's identity is referred to as the verifier, in accordance with the NIST Digital Identity Guidelines.
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Select the correct answer. which pci security requirement relates to the physical protection of banks’ customer data? a. network security testing b. access control measures c. credit card data protection d. network vulnerability management e. information security policy
''Network vulnerability management" pci security requirement relates to the physical protection of banks customer data.
By reducing the likelihood that errors in code or configuration may compromise the security of an endpoint or system, vulnerability management refers to a proactive approach to managing network security.
The best technique to evaluate a PC setup for potential security flaws and loopholes is through a network vulnerability assessment.
System directors use it to evaluate a system's security architecture and resistance to potential threats and weaknesses.
Four basic forms of vulnerability—human-social, physical, economic, and environmental—as well as the related direct and indirect losses.
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Which would not be considered as one of the seven skills that analytic-minded accountants should have?
Data analysis conducted via use of SQL and Tableau would not be considered as one of the seven skills that analytic-minded accountants should have.
Strong decision-makers and problem-solvers, accountants must be able to objectively examine data to pinpoint issues that exist inside and threaten an organization's accounting structure before using an integrated strategy to provide workable solutions.
In a word, accounting analytics is the study of Big Data utilising data science or data analytics technologies to assist in resolving accounting-related issues.
Forecasters. Statistics are used by accountants to forecast book value, cash flow, earnings, and consumption. Forecasting, which is regarded as accounting for the future, entails some future speculation, and when people speculate, they usually make mistakes.
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Which type of monitor is composed of extremely thin panels of organic molecules sandwiched between two electrodes?.
OLED monitors are made of incredibly thin organic molecule panels that are sandwiched between two electrodes.
A light-emitting diode (LED) known as an organic light-emitting diode (OLED) has an organic compound film that produces light in response to an electric current as the emissive electroluminescent layer. With at least one transparent electrode, this organic layer is placed between two electrodes.
Digital displays are made with OLEDs for products like televisions, computer monitors, and mobile gaming devices like smartphones. An important area of study is the development of white OLED parts for use in solid-state lighting systems.
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An example of a technological innovation that increased the country’s natural resource base is.
The oil drill is an illustration of a technological advancement that enhanced the nation's natural resource base.
What does the term "technology innovation" mean?A new or enhanced product or procedure with considerably better technological features is referred to as a technological innovation. New products (product innovations) or processes (process innovations) that have been commercialized constitute technologically implemented product innovations.An expanded definition of innovation is technological innovation. Although innovation is a fairly well-defined notion, many people—especially those in the academic and corporate worlds—understand it to mean different things. Technological breakthroughs including wind turbines, photovoltaic cells, concentrated solar power, geothermal energy, ocean wave power, and many other recent innovations are included in the innovations. Innovation in technology benefits society. By bringing new, better products and services to the populace, it raises productivity and raises the level of living for everyone. Innovation's advantages sometimes take time to manifest. They frequently affect the entire population in a wide sense.To learn more about technological innovation, refer to:
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Create a program that allows the user to insert 30 integer numbers. The program should return the average of the positive numbers inserted that are multiples of 3 (the average should be a floating point number). If during the insertion the user enters a number x that is a divisor of 70 the total count of integers inserted should be decreased by x units.
E.g. the user may enter 31, 6, 10, 7, 19, 96, 5, 12 and then it should stop asking for numbers, because the total number of integers inserted is 8, but since 10, 7 and 5 were inserted, which are all divisors of 70, no more integers had to be asked for, since 8 + 10 + 7 + 5 = 30.
The program should return 38, since that is the average of 6, 96 and 12
In c++
A program that allows the user to insert 30 integer numbers. The program should return the average of the positive numbers inserted that are multiples of 3 is given below:
The Program#include <iostream>
using namespace std;
int main()
{
int n, i;
float num[100], sum=0.0, average;
cout << "Enter the numbers of data: ";
cin >> n;
while (n > 100 || n <= 0)
{
cout << "Error! number should in range of (1 to 100)." << endl;
cout << "Enter the number again: ";
cin >> n;
}
for(i = 0; i < n; ++i)
{
cout << i + 1 << ". Enter number: ";
cin >> num[i];
sum += num[i];
}
average = sum / n;
cout << "Average = " << average;
return 0;
}
OutputEnter the numbers of data: 6
1. Enter number: 45.3
2. Enter number: 67.5
3. Enter number: -45.6
4. Enter number: 20.34
5. Enter number: 33
6. Enter number: 45.6
Average = 27.69
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The bakery has requested the following custom variables:
-customer’s first name
-customer’s last name
-a coupon percentage off
-the date that they became a newsletter subscriber
Create an appropriate variable for each of these four items.
Then create string for the custom newsletter text that will show up before, between, and after each custom variable.
For example, “Hello,” might be the first string, followed by the variable carrying the customer’s name, followed by “Thanks for subscribing to our newsletter!” Your custom newsletter text should greet the person, then offer them a coupon, and then thank them for being a loyal customer.
Add placeholder names and information to populate into the variables for testing purposes by making up data for each. You can use your own name, for example, as this is simply a prototype or proof of concept. To do this, remember that the equals sign = between a variable and its value assigns that value to the variable.
Finally, use the print function to display the final newsletter text that includes all the required variables. This will display a final string that reads like a plaintext newsletter with the variables appropriately replaced by the defaults for each that you set in Step 1.
We can also combine two strings together in a single print function by using the + sign like this:
print(greetingTxt + firstName + bodyTxt1)
Code:
firstName = "Bill"
lastName = "Nye"
coupon = 15
joinDate = "January 14, 1973"
print("Hello, " + firstName + lastName)
print("Thanks for subscribing to our newsletter!")
print("Here's a coupon for " + str(coupon) + "% off for being subscribed since " + joinDate)
Output:
Hello, BillNye
Thanks for subscribing to our newsletter!
Here's a coupon for 15% off for being subscribed since January 14, 1973
Why can we have at most one primary or clustering index on a file, but several secondary indexes?
The reason is that there is only one physical way in which the actual data may be structured. A secondary index is a distinct data structure with references to the rest of the data that is arranged around its own keys.
Index structures are used in databases to create an index with identifiers and pointers to the blocks so we can access the block directly or limit the number of blocks that need to be searched, hence reducing the number of block accesses. The key values are the values in the column. The retrieval performance of the table will be enhanced by creating an index for each column that will serve as the foundation for table retrievals.
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Consider the following statements: void pointerparameters(int* &p, double *q) { . . . } in the function pointerparameters, the parameter q is a(n) ____________________ parameter.
The void pointerParameters(int &p, double q){...}In the function pointerParameters, the parameter p is a(n) reference parameter.
A reference parameter is a pointer to a variable's memory location. In contrast to value parameters, when you pass parameters by reference, a new storage location is not made for these parameters. The actual parameters that are passed to the method's reference parameters represent the same memory address.
The second technique to give arguments to a function is by call-by-reference. This technique copies the argument's address into the parameter but not its values. This address is used to obtain the actual argument mentioned in the call within the function.
When you need to alter the value of a call's actual parameter variable, use a reference parameter. It is seen to be better programming practise to return the value with the return statement when a function only computes one value.
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The sap erp ____ software module records all financial transactions in the general ledger accounts and generates financial statements for external reporting.
The sap ERP production planning software module records all financial transactions in the general ledger accounts and generates financial statements for external reporting.
ERP software is modular software that integrates an organization's business operations into a single system that runs on a central database. Other core business functions include production planning, purchasing, inventory management, customer relationship management (CRM), and exchange of information with the finance module. When a transaction within other modules has financial implications or must be documented in the accounting system, an action or data transfer in the ERP finance module is usually triggered.
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Which of these could you use to change data into information?
a computer program
binary
hexadecimal
ASCII
Which layer in the tcp/ip model is used for formatting, compressing, and encrypting data?
In the TCP/IP model, the application layer is used for compressing, formatting, encryption data.
The TCP/IP is a four layered model in which each layer deals with different functionalities. Complex operations like data compressing, formatting and encryption are performed on the application layer in the TCP/IP model.
Data compressing: Data compression service is offered by the application layer in which the size of data frames is reduced so that they can quickly be exchanged over the network. Data formatting: Data formatting is another functionality of the application layer in which the application layer changes data from one format to another format according to defined specification for the purpose of further processing. Data encryption: The application layer also performs data encryption. In data encryption, the application layer converts the data from a readable plaintext to unreadable coded text.Besides data encryption, compressing and formatting, the application layer in TCP/IP model also offers many other services. These services include providing interface between two remote devices; communicating the entire data message; handling file transfer and web browsing; managing network connections; checking data authentication and authorization; and performing data synchronization.
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Which of the following is the purpose of a power supply unit?
OA powers the monitor and keyboard
OB. transfers heat from computer parts out to the open air
OC. converts electricity from alternating to direct current
OD. connects the motherboard to the monitor
Answer: OC
Explanation: converts electricity from alternating to direct current
The power supply puts electricity into the computer from the wall
No power supply, no electricity to power on and post at start-up ....
The architectural layer responsible for displaying web pages to the user and accepting user input is known as the _________ tier.
The architectural layer responsible for accepting user input and displaying web pages to the user is known as the presentation tier.
In the architectural layer design of web applications, it is the presentation tier that accepts the input from users and displays the web pages to users. The presentation tier is the highest-level tier in the web applications where the interface is placed through which the user interacts directly with the web applications. That is why it is also known as the communication layer.
The presentation tier defines the format of the web pages, where the information/data is to be displayed and accepted. This tier runs on a web-based application or web browser and is usually built using JavaScript, CSS, and HTML etc.
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When you turn on your computer, a message appears on your display that says, "Keyboard Error." You press the ENTER key to bypass the message and continue the startup process, but nothing happens.
How will you attempt to troubleshoot the problem before calling technical support?
Answer:
Firstly, I'd unplug and plug the keyboard back in, and if that doesn't help immediately, I'd restart the computer.
If that still doesn't work, I'd try another keyboard.
If even after that it doesn't work, I'd probably then call tech support.
Nina is creating a wireframe for a website she and her team are working on. Which two statements are true regarding wireframes?
Nina can use the wireframe to show the arrangement of images on a web page.
Nina needs to place the actual content in the wireframe.
Nina can show how different pages are linked together in the wireframe.
Nina can draw a linear, hierarchical, webbed, or wheeled wireframe.
Nina should use placeholders to show how the elements are arranged.
The two statements are true regarding wireframes are:
Nina should use placeholders to show how the elements are arranged.Nina needs to place the actual content in the wireframe.What is a wireframe used for in web design?A wireframe is known to be a kind of a method that is most commonly used to show the layout content as well as the functionality on a page that often takes into view the needs of user and their journeys also.
Wireframes are said to be used first in the development work to set up the basic structure of any kind of page prior to visual design as well as when content is added.
Since Wireframes are known to be very vital tool for UX designers. They tend to function as blueprints and UX designers can be able to make sure that they are going in the right direction prior to putting a lot of time into total mockups.
Threfore, The two statements are true regarding wireframes are:
Nina should use placeholders to show how the elements are arranged.Nina needs to place the actual content in the wireframe.Learn more about wireframe from
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Answer:
Nina can use the wireframe to show the arrangement of images on a web page.Nina should use placeholders to show how the elements are arranged.I hope this helps
btw Plato
Design a questionnaire in which you interview a prospective applicant on possible interview questions (5) and model responses (5) based on the job advertisement
Here are some guidelines to help you design an interview questionnaire based on the job advertisement to help you interview a prospective applicant.
• Decide on and comprehend the position - Understand the role and the traits that would be appropriate there.
• Pose simple, open-ended questions - Write questions that anybody can understand and that are intended to elicit sincere and insightful responses.
• Ensure its lengthy enough to get the necessary data – include all questions crucial and pertinent to the job.
• Include logical or descriptive questions - This can help you select candidates who are qualified for the position.
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