Answer:
Determinant criteria
Explanation:
When studying consumer behaviour, it is important to understand the criteria that consumers use to make their choices when it comes to goods. This criteria can be divided in several categories, such as determinant criteria and evaluative criteria. In this case, the example describes determinant criteria. This is the criteria that is most carefully considered and is directly related to the actual choice that is made.
In the context of the technologies developed to improve the efficiency and quality of digital communications, _____ divides each channel into six time slots.
Answer: Time Division Multiple Access (TDMA)
Explanation:
Time Division Multiple Access (TDMA) is a digital cellular telephone communication technology which allow many users to share the same frequency without interference. It works by dividing a signal into different timeslots, and increasing the data carrying capacity.
Time Division Multiple Access (TDMA) is a complex technology since it requires accurate synchronization between the transmitter and the receiver. Again, TDMA is used in digital mobile radio systems. The individual mobile stations cyclically assign a frequency for the exclusive use of a time interval.
In most instances, the entire system bandwidth for an interval of time is not assigned to a station. But the frequency of the system is divided into sub-bands, and TDMA is used for the multiple access in each sub-band. Sub-bands are referred to as carrier frequencies and the mobile system that uses Sub-bands are known as the multi-carrier systems.
Consider this illustration, the frequency band has been shared by three users. Each user is assigned definite timeslots to send and receive data. user ‘2' sends after user ‘1’ and user ‘3’ sends thereafter. More users can be added too.
From the question, Time Division Multiple Access (TDMA) are developed to improve the efficiency and quality of digital communications and it can divide a channel into six or more time slots.
The __________ cipher is a single-alphabet substitution cipher that is a permutation of the Caesar cipher. All characters are rotated 13 characters through the alphabet.
Answer:
ROT13 is the correct answer of this question.
Explanation:
The ROT13 cipher is a single-alphabet substitution cipher, which is a Caesar cipher permutation. All letters are rotated through the alphabet to 13 characters. ROT13 is a particular case of the Caesar cypher that was created in ancient Rome.
ROT13 is a direct letter cryptographic hash function, combining a letter in the alphabet with the 13th letter after it. ROT13 is used from a casual viewpoint in online forums to cover surprises, punchlines, puzzle solutions and offensive content.Final answer:
The ROT13 cipher is a permutation of the Caesar cipher where each character in the plaintext is rotated 13 places through the alphabet; it's different from the transposition cipher used in the Zimmerman Telegram.
Explanation:
The cipher described in the student's question is the ROT13 cipher. This cipher is a specific type of substitution cipher where each letter in the plaintext is rotated 13 positions down the alphabet. For example, 'A' becomes 'N' and 'N' becomes 'A'. It is called a permutation of the Caesar cipher because, like the Caesar cipher, it involves shifting the alphabet. However, the shift is always 13, making it a fixed variation. Unlike a transposition cipher, such as the one used in the Zimmerman Telegram, a substitution cipher replaces one character with another rather than rearranging them.
For the client-server application over TCP, why must the server program be executed before the client program? For the client server application over UDP, why may the client program be executed before the server program?
Answer:
In a TCP connection the server program must be executed before the client program because if the server is not listening, the client fails to establish connection with the server.
UDP does not require a connection from the server.
The server software must be run before the client program in a TCP connection because the client cannot connect to the server if the server is not listening. The server does not need to establish a connection for UDP.
What is client server application?In theory, a client/server application consists of client software that makes use of server software's services. The client contacts the server application's operations to request services from it.
A client frequently requests a server for goods or services rather than sharing any of its resources. Clients thereby establish channels of communication with servers, which subsequently keep an eye out for incoming requests. The client-server architecture is used by a number of computer programs, including email, network printing, and the World Wide Web.
A client application uses the framework provided by an underlying client to access the resources provided by WebSphere® Application Server.
Thus, The server software must be run before the client program in a TCP connection.
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A collider is required to:
A) make walls impassible
B) make walls invisible
C) create objects in unity
D) all of the above
Answer:
A) make walls impassible
Explanation:
In unity, we can use a collier to make an impassible wall or other objects, for example, if we have a wall or floor of ice will be slippery, but this object won't be deformed, and we can add this collider in a ball, this object will have physic but this won't be deformed, the collider is invisible but the object is physic.
An IT department submits a purchase order to buy a new computer from a vendor. "Purchase orders" are documents issued by buyers that indicate a purchase they want to make from a seller. Which stage of the hardware lifecycle does this scenario belong to?
Answer:
Procurement
Explanation:
Characteristics hardware lifecycle:
Procurement- Acquiring new IT hardware assets involves evaluating vendors, purchase orders, receiving, and device labeling.Deployment - Hardware configuration and installment, placing hardware and software assets into production environments.Maintenance & Support - Management of assets include scheduling scans and getting audit history.Upgrade - Before you retire your IT hardware assets, you’ll reach a processing plateau that can be restored with hardware upgrades.The scenario belongs to the Procurement stage of the hardware lifecycle.
Explanation:The scenario described belongs to the Procurement stage of the hardware lifecycle.
During the procurement stage, the IT department submits a purchase order to buy the new computer from a vendor. A purchase order is a document issued by buyers that indicates a purchase they want to make from a seller. This document initiates the process of acquiring the computer.
Other stages of the hardware lifecycle include Planning, Acquisition, Implementation, and Retirement.
A stack is initially empty, then the following commands are performed: push 5, push 7, pop, push 10, push 5, pop, which of the following is the correct stack after those commands (assume the top of the stack is on the left)? A. 5, 10, 7, 5.
B. 5, 10.
C. 7, 5.
D. 10, 5.
Answer:
D. 10, 5.
Explanation:
Someone asks you for help with a computer that hangs at odd times. You turn it on and work for about 15 minutes, and then the computer freezes and powers down. What do you do first?
Answer:
Is this multiple choice? If my computer froze and powered down, I'd probably power it back on- get like a virus checker thing??
Explanation:
A Color class has a constructor that accepts three integer parameters: red, green and blue components in the range of 0 ... 255 with 0 representing no contribution of the component and 255 being the most intense value for that component. The effect of full or semi-transparency can be achieved by adding another component to the color called an alpha channel. This value can also be defined to be in the range of 0...255 with 0 representing opaque or totally non-transparent, and 255 representing full transparency. Define a class AlphaChannelColor to be a subclass of the Color class. AlphaChannelColor should have the following: - an integer instance variable alpha - a constructor that accepts four parameters: red, green, blue and alpha values in that order. The first three should be passed up to the Color class' constructor, and the alpha value should be used to initialize the alpha instance variable. - a getter (accessor) method for the alpha instance variable
Answer:
The following are the code in the Java Programming Language.
//define a class and inherit the other class
public class AlphaChannelColor extends Color {
//define constructor and pass arguments
public AlphaChannelColor(int red, int green, int blue, int alpha) {
super(red, green, blue);
this.alpha = alpha;
}
//define function
public int getAlpha()
{
return alpha;
}
//declare a private type variable
private int alpha;
}
Explanation:
The following are description of the program.
Firstly, define a class 'AlphaChannelColor' that inherits the other class that is 'Color' through the extend keyword. Define the constructor (in Java, the class name and the name of the constructor remain same) and pass four integer data type arguments 'red', 'green', 'blue' and 'alpha' in its parameter. Define the integer data type function 'getAlpha()' that returns the value of the variable 'alpha'.The __________ stage of the crisp-dm process focuses on understanding the objectives and requirements of a project.
Answer:
Data Understanding.
Explanation:
CRISP-DM (Cross Industry Standard Process for Data Mining). The stage Data Understanding characteristics:
This initial phase focuses on the understanding of the project objectives. This knowledge of the data is then converted into the definition of a data mining problem and a preliminary plan designed to achieve the objectives.The objective is to discover from the beginning important factors that can influence the outcome of the project.A comparative analysis of the project costs and the potential benefits for the business is carried out if the project is successful.Write the code to call a function whose name is send_number. There is one argument for this function, which is an int. Send 5 as an argument to the function.
Answer:
program to this question can be defined as follows:
Program:
#include <iostream> //defining header file
using namespace std;
void send_number(int x) //defining method send_number
{
cout<<x; //print the value
}
int main() //defining main method
{
send_number(5); //calling a method
return 0;
}
Output:
5
Explanation:
In the given C++ language program, firstly the header file is defined, in the next step, the method "send_number" is defined, in which an integer variable "a"passed as parameter, in which the print method is used, that prints its value. In the main method, the method "send_number" is called, in which an integer value that is 5 is passed.You want to know your grade in Computer Science, so write a program that continuously takes grades between 0 and 100 to standard input until you input "stop", at which point it should print your average to standard output.
Answer:
Following are the program in the Python Programming Language.
#declare variables and initialize to 0
s=0
n=0
avg=0
#set the infinite while loop
while(True):
#get input from the user
score=input()
#set if statement to break loop
if(score =="stop"):
break
#otherwise, perform calculation
else:
n+= 1
s=s+ int(score)
avg= s/n
#print average of the input
print ('average: ',avg)
Output:
58
96
34
15
stop
average: 50.75
Explanation:
Following are the description of the program.
Firstly, set three variable that is 's' for sum, 'n' for count and 'avg' for average and initialize them to 0.Set the infinite while loop and inside it, set variable 'score' that get input from the user then, set the if conditional statement for break the loop, otherwise we calculate the sum of the user input and calculate its average.Finally, we print the result with message.There are numerous line coding techniques used today, with each technique having advantages and disadvantages regarding bandwidth efficiency, complexity, and timing. Which line coding technique represents logical data as electrical voltage transitions (i.e., high-to-low or low-to-high voltage transitions) in the middle of the clock pulse
Answer:
Manchester Coding Technique
Explanation:
Manchester code (also referred as phase encoding, or PE) is a type of line code in which the process of encoding of each data bit will either be from low then high, or high then low, for an equal amount of time. It is a self-clocking indicator with no DC component.
It is also a data-modulation system that can be utilized for many situations but is mainly used in binary data transfer based on analog, high-speed-digital, RF, optical, or long-distance-digital signals.
In older existing installations, where an equipment ground does not exist in a metal switch box that is located within reach of a conductive floor such as tile or cement, NEC 404.9(B) requires the use of what kind of faceplate
Answer:
A metal faceplate with grounding means
Explanation:
metal faceplate with grounding means is required in older existing installations, where an equipment ground does not exist in a metal switch box that is located within reach of a conductive floor such as tile or cement.
Answer:
The NEC requires the use of a metallic faceplate for this situation.
Explanation:
NEC 404.9(B) requires a metal faceplate having a means for grounding to be used in older installations where there is no ground for an equipment in a metal box switch located within a conductive floor. There is however an exception which states that as long as the wiring method does not have anything to do with an equipment-grounding conductor, it is required that a snap switch that is wired and located within reach of conductive floors must have a nonmetal faceplate or protected by an interrupter.
Show the printout of the following code.
public class Test {
public static void main(String[] args) {
double[][] m = {{1, 2, 3}, {1.5, 2.5, 3.5}, {0.1, 0.1, 0.1}};
System.out.println(sum(m));
}
public static double sum(double[][] m) {
double sum = 0;
for (int i = 0; i < m.length; i++)
sum += m[i][i];
return sum;
}
}
A). 3
B). 4
C). 4.0
D). 3.6
E). 3.0
Answer:
E. 7.0
Explanation:
the 7 of the out of the older and make a shame of waves and force of trying
Under the ________ model, organizations "rent" resources such as processing, data storage, or networking from an external provider on an as-needed basis and pay only for the services used. distributed computing grid computing cluster computing utility computing parallel computing
Answer:
utility computing
Explanation:
Fill in the blanksunder the utility computing model, organizations "rent" resources such as processing, data storage, or networking from an external provider on an as-needed basis and pay only for the services used.
The Digital Signature Standard established by NIST is used for electronic document authentication by federal information systems. It is based on a variant of the ElGamal algorithm. _________________________
Answer:
This question is incomplete, here is the complete question;
True or False:
The Digital Signature Standard established by NIST is used for the electronic document authentication by federal information systems. It is based on a variant of the ElGamal algorithm.
Answer:
True
Explanation:
The Digital Signature Standard (DSS) refers to the Federal Information Processing principles which specified the suite of algorithms that may be used to create or generate digital signatures; this set standard was established by the U.S. National Institute of Standards and Technology (NIST) in the year 1994 and was structured based on a variant of the ElGamal algorithm.
The Digital Signature Standard by NIST applies cryptographic signing to ensure the authenticity of electronic documents. It is based on a variant of the ElGamal algorithm, providing integrity and non-repudiation for electronic records and software verification.
Explanation:Authenticity through Cryptographic SigningThe Digital Signature Standard (DSS) established by the National Institute of Standards and Technology (NIST) uses cryptographic signing based on a variant of the ElGamal algorithm. The primary purpose of DSS is to ensure the authenticity of electronic documents within federal information systems. Cryptographic signing achieves the digital equivalent of a signature, indicating that the message or document is indeed from the purported sender.
Principles of Cryptographic SigningCryptographic signatures provide two essential properties of authenticity: integrity and non-repudiation. Signing electronic records and messages using the sender's private key allows the receiver, with the sender's public key, to verify that the document is unaltered and to confirm the sender's identity.
Applications of Cryptographic SigningCryptographic signing is not limited to messages; it also includes applications like verifying software integrity. Developers often use cryptographic signatures to assure users that the software has not been tampered with from the development stage to the point of installation on users' devices.
Verifying the Authenticity of SourcesIn the realm of digital security, being able to authenticate the source of information is crucial. Cryptographic signing is a cornerstone of trust online, helping to combat identity theft as well as prevent high-tech fraudulent activities such as network traffic redirection.
Assume that two int constants,FIRST_YEAR and LAST_YEAR have already been declared and initialized with year values (like 2009, 2014), along with a double variable oil that has been initialized with the number of barrels of oil consumed in Canada in the year given by FIRST_YEAR.
Answer:
#include <iostream>
using namespace std;
int main()
{
int count;
double oil=10.88;
int FIRST_YEAR=2009,LAST_YEAR=2014;
count = FIRST_YEAR;
do
{
cout << count << ": " << oil << endl;
oil *= 1.20;
count++;
} while ( count <= LAST_YEAR );
return 0;
}
Explanation:
Declare the required variables.Use a do-while loop that runs from first year to last year .Display count of oil .Increment oil by 20% and count by 1.The systems development life cycle (SDLC) is: A. a method for testing new IT applications. B. a structured approach for developing information systems. C. the analysis and assessment tasks that need to be completed when designing and developing information systems. D. a set of guidelines that an end user follows when developing their own business applications.
Answer:
The answer is "Option B"
Explanation:
This process requires the user to create an information network built on computers and also to manage them. All these are special design and manufacturing systems, that enable manual data to be automated, that's why many computer information technologies don't require manual data mining, and wrong choices can be described as follows:
In option A, It is not only used in testing. In option C, It is an approach, that first analyzes then developed. In option D, It is not only used in business applications.covers a wide variety of applications such as web and computer-based training (CBT), and social networks. a. E-learning b. Modeling c. Videodisc instruction d. Vestibule instruction
Answer:
Option (a) is the correct answer of this question.
Explanation:
E-Learning means that Electronic Learning. It covers a broad spectrum of applications, including online and computer-based training (CBT) and public networks.E-Learning is learning to use new technology to navigate curricula beyond a conventional classroom is known as Electronic learning.
E-learning is a nurturing environment that allows use of information and communication technologies (ICTs) as a pedagogical tool.E-learning not a program distributed over a Disc or CD-ROM, a video tape or a TV channel.There are two types of E-learning are known as:-
Synchronous E-learning. Asynchronous E-learningE-learning is the correct answer, which includes web and CBT applications, and utilizes social networks for educational content delivery, interactive student engagement, and blending learning approaches.
Explanation:The answer to the student's question which covers a wide variety of applications such as web and computer-based training (CBT), and social networks is e-learning. E-learning utilizes digital platforms to deliver educational content and can encompass various methods such as direct instruction, discussion activities, distance education, and the use of digital textbooks. The instructional processes in e-learning have evolved to include more open practices like blended learning approaches and two-way communication tools, encouraging active student engagement and interactive learning experiences.
Furthermore, e-learning methods have been used to adapt evidence-based programs for electronic delivery, making these programs more accessible and time-efficient. These advances align with the continual shift toward formal education and informal education that leverages modern technology for varied and flexible learning experiences.
SP 800-14, Generally Accepted Principles and Practices for Securing Information Technology Systems, provides best practices and security principles that can direct the security team in the development of a security:____________.
Answer:
Security blueprint
Explanation:
NIST 800-14 provides an understanding of the fundamental security requirements and security blueprints that most IT systems should include, serving as a reference for companies or organizations that desire to create and review their IT security programs.
The principles established a foundation for a concrete system security program and this practices directs organizations on the types of controls, objectives and processes that are involved in an effective and efficient IT security program.
If a cache access requires one clock cycle and dealing with cache misses requires an additional five clock cycles, which of the following cache hit rates results in an effective access time of 2 clock cycles?a) 70%.
b) 80%.
c) 85%.
d) 90%.
Answer:
B. 80%
Explanation:
To assertain:
1 hit takes 1 clock cycle while 1 miss takes 6 clock cycles
Assuming that:
we have 100 accesses in total, p are hits,100 - p are misses[tex]So, p + (100 - p)*6 = 200\\ \\p+600-6p = 200\\\\-5p + 600 = 200\\\\5p = 600 -200\\\\p = \frac{400}{5} \\\\p= 80[/tex]
Hence, option B. 80% will result in an effective access time of 2 clock cycles.
The __________ stage of the data science process helps in converting raw data to a machine-readable format.
Answer:
The answer is "Data Cleaning".
Explanation:
In the given question some information is missing, that is the option of the question, which can be described as follows:
A) Data Gathering
B) Data Description
C) Data Cleaning
D) Exploratory Data Analysis
Information cleaning is the method of processing information, that may not be accurate, complete, obsolete, replicated. It is used in to review the deleted and changing information, and certain options choice is incorrect, that can be explained as follows:
In option A, It is used in collecting data. In option B, It provides the details about the data. In option D, It is used in the statistical model for analyzing the data.The accounting department moved its network-attached printer from one side of the office to a more centralized location, making the printer much more accessible to all accounting users. Since the move, the users have not been able to print to the printer. The printer powers on and shows it is ready to accept print jobs. The printer configuration page shows the following output.IP Configuration: DHCPIP Address: 169.254.101.132Subnet Mask:255.255.0.0Default Gateway:You disconnect the patch cable from the keystone jack at the new location and move the printer and cable to reconnect it at the original location. The printer begins printing the jobs that failed to print earlier.Which of the following are the most likely reasons for the printer failing to print at the new location? (Select TWO.)The cable run connecting the new keystone jack to the patch panel is bad.
The patch panel connector for the new location's cable run is not connected to a switch.
Answer:
The cable run connecting the new keystone jack to the patch panel is bad.
The patch panel connector for the new location's cable run is not connected to a switch.
Explanation:
The cable run connecting the new keystone jack to the patch panel is bad.
The patch panel connector for the new location's cable run is not connected to a switch.
________ is a technique that uses IT to develop an ongoing relationship with the purchasers or buyers of an organization's product to maximize the value an organization can deliver to them over time. Effective reliability management (ERM) Organizational efficiency management (OEM) Total quality management (TQM) Continuous innovation management (CIM) Customer relationship management (CRM)
Answer:
Customer Relationship Management (CRM)
Explanation:
Establishing and managing the relationship between the organization, potential and current customers is important for organizational development. CRM manages the potential or established relationship between the customer and the organization, ensuring that customer satisfaction is met.
It analyses customer history data (purchases, products, time of purchase, etc.) with a special focus on retaining customers and improving sales. Compiling data from multiple communication channels showcases one of the vital parts of the CRM method. These channels can be social media, live chat, email, telephone, website and so on.
A ________ firewall handles all traditional firewall functions (SPI, ACLs, etc.) as well as additional security functions such as antivirus filtering, spam filtering, application proxy filtering, and so forth.
UTM consists of a firewall handling all traditional firewall functions (SPI, ACLs, etc.) as well as additional security functions such as antivirus filtering, spam filtering, application proxy filtering.
Explanation:
The term UTM stands for Unified Threat Management
A traditional firewall is defined as a device that can control the flow of traffic that is allowed to enter or exit a point within the network.
The technique of traffic monitoring means that the firewall just keep a check over each data packet individually without disturbing the “flow” of traffic
Few Example of the fire wall used by small business houses are -Fortinet, Ubiquiti EdgeRouter, Cisco NGFW, OPNSense.
structure for forloop?
Answer:
for ( initialization; condition;increment)
{
code goes here;
}
in python:
for i in list/range:
code with proper indentation
By initialization above we mean, like int i=0; etc.
By condition like i<10;
and by increment it means like i++, ++i or i+=1; etc
And in python, i can be an integer value if the range is mentioned, and it can be an item of a list if the list is used. We can also use an array, string and various other data structures in python. like we can have characters in a string and so on.
Explanation:
Please check the answer section.
Software programs used by search engines which crawl the web visiting sites to analyze the keywords, headers, content, and links to other sites are called ________.
Answer:
"spiders" is the correct answer for the above question.
Explanation:
The "spiders" is an application program that is used on the website to count or store the keyword of web pages, which can be used to do the help of the user.This helps the user when any user searches the content on the web page, then this software takes the keywords and gives the results when the keyword is matched from the stored keyword.The above question asked about the software which is used to hold the keyword of the website. This software is known as spiders.
Which statement is false? Classes are reusable software components. A class is to an object as a blueprint is to a house. Performing a task in a program requires a method. A class is an instance of its object.
Answer:
The last option i.e "A class is an instance of its object" is the correct answer of this question.
Explanation:
A class is a collection of variable and method . The class is the blueprint of the object that means class is physical space entity and object is a runtime space entity.It is the the reusability feature of the programming component.
Following are the syntax to declare any class.
Class classname
For Example: class test1
With the help of class we can achieve the inheritance, encapsulation and abstraction etc.
All the other options except the last one are correct option. Because option(1), option(2) and option(3) follow the property of class and object . that's why last option is False.
The __________ cipher is a method of encrypting alphabetic text by using a series of different monoalphabetic ciphers selected based on the letters of a keyword.
Answer:
Vigenère
Explanation:
It is a method of encrypting alphabetic text by using a form of polyalphabetic substitution. A polyalphabetic cipher is any cipher based on substitution, ie using multiple substitution of alphabets. The encryption is done using a Vigenère table.
To encrypt a message using the Vigenère Cipher you choose a keyphrase. Then repeat this keyword over and over until it is the same length as the original text; this is referred to as a keystream.
Recall that TCP can be enhanced with SSL to provide process-to-process security services, including encryption. Does SSL operate at the transport layer or the application layer? If the application developer wants TCP to be enhanced with SSL, what does the developer have to do?
Answer:
SSL has operate in Application Layer to encrypt the information from user and pass it to the TCP. To enhance TCP security developer can integrate the code of SSL with application layer.
Explanation:
SSL certificate is used to enhance the security of user data and encrypt the information of passwords, data transfer and other information to make it secure. This certificate is installed at application layer to make all the information secure and send it to the Transmission Control Protocol (TCP) to send it further. The TCP can be enhanced more by adding SSL code to the application Layer of the Network.