Discuss what technologies you might see in use at an enterprise. For example, where would you most likely see fiber-optic Ethernet technologies? Or where might wireless technologies be deployed?

Answer:

Explanation: Where binary numbers are made up of 0s and 1s, numbers in hexadecimal (base 16) contains digits from 0 to 9 as well as letters from A to F. Any number gotten from applying the placeholders (8,4,2,1) that is above 9 is changed into letters. Thus: 10 = A; 11 = B; 12 = C; 13 = D; 14 = E & 15 = F

Solving the question, we split the binaries groups of fours while adding 0s from the left hand side of incomplete groups of four to make it up to four.

I would place the placeholders in brackets for example 1(8) should be read as "number of 8s is 1; 0(2) as " number of 2s is 0"

1. 1101 in base to to base 16 = 1(8) 1(4) 0(2) 1(1)

= 8 + 4 + 0 + 1 = 13 = D

Therefore, 1101 base 2 is D in hexadecimal

2. 11101110 = 1110 & 1110 {group of four}

1110 = 1(8) 1(4) 1(2) 0(1)

= 8 + 4 + 2 + 0 = 14 = E

Therefore, 11101110 base 2 = EE in hexadecimal

Answer:

Following is given the solution to question I hope it will  make the concept easier!

Explanation:

Answer:

Answer explained below

Explanation:

It depends on the arrival time and burst time of the processes. On increasing the time slice the waiting and turn around time can increase and decrease both.

As waiting time and turn around time are the major criteria for calculating the efficiency, so we can't say whether the efficiency will increase or decrease.

Answer:

Global system for mobile

Explanation:

Answer:

The answer is "Option b"

Explanation:

GSM is a cellular network system of the second generation, which is currently used in the world's. It is most useful in a telecommunications network. It is also regarded as open-ended and wireless cellular technology for mobile voice and data transmission, and certain choices were incorrect, which is explained as follows:  

Final answer:

The function calcWordFrequencies prompts for input, splits the input into words, counts their occurrences using an object, and logs each word along with its frequency to the console.

Explanation:

To implement the function calcWordFrequencies that reads a list of words separated by spaces and outputs their frequencies, you can use a programming language like JavaScript. The function will prompt the user for input, then split the input string by spaces to get an array of words. After that, the function will count the occurrences of each word using an object to store the frequencies, and finally, it will log the words and their respective frequencies to the console.

Here is an example of how this function might look:

function calcWordFrequencies() {
 var input = prompt('Enter a list of words separated by spaces:');
 var words = input.split(' ');
 var frequencies = {};
 for (var i = 0; i < words.length; i++) {
   var word = words[i].toLowerCase();
   frequencies[word] = (frequencies[word] || 0) + 1;
 }
 for (var word in frequencies) {
   console.log(word + ' ' + frequencies[word]);
 }
}
Note: The example above converts all words to lowercase to count 'Mark' and 'mark' as two occurrences of the same word. You can remove the toLowerCase call if you want to distinguish between capitalized and lowercase words.

Final answer:

To count word frequencies in Python, use the input() function to collect user input, split the input into words, use a dictionary to track frequencies, then iterate and print each word with its frequency.

Explanation:

To implement the function calcWordFrequencies that reads a list of words from the user and outputs the frequency of each word, you can follow these steps in Python:

Here is an example code snippet that demonstrates these steps:

Answer:

import java.util.Scanner;

public class ANot {

   public static void main(String[] args) {

       Scanner in = new Scanner(System.in);

       System.out.println("Please enter a word");

       String word = in.next();

       System.out.println("Please enter a character");

       char ca = in.next().charAt(0);

       int countVariable = 0;

       for(int i=0; i<word.length(); i++){

           if(ca ==word.charAt(i))

               countVariable++;

       }

       System.out.println(countVariable);

   }

}

Explanation:

Answer:

void Shape :: member ( Shape s1, Shape s2 ) ; // pass by value

void Shape :: member ( Shape *s1, Shape *s2 ) ; // pass by pointer

void Shape :: member ( Shape& s1, Shape& s2 ) const ; // pass by reference

void Shape :: member ( const Shape& s1, const Shape& s2 ) ; // pass by const reference

void Shape :: member ( const Shape& s1, const Shape& s2 ) const ; // plus the function is const

Explanation:

void Shape :: member ( Shape s1, Shape s2 ) ; // pass by value

The s1 and s2 objects are passed by value as there is no * or & sign with them. If any change is made to s1 or s2 object, there will not be any change to the original object.

void Shape :: member ( Shape *s1, Shape *s2 ) ; // pass by pointer

The s1 and s2 objects are passed by pointer as there is a * sign and not & sign with them. If any change is made to s1 or s2 object, there will be a change to the original object.

void Shape :: member ( Shape& s1, Shape& s2 ) const ; // pass by reference

The s1 and s2 objects are passed by reference  as there is a & sign and not * sign with them. If any change is made to s1 or s2 object.

void Shape :: member ( const Shape& s1, const Shape& s2 ) ; // pass by const reference

The s1 and s2 objects are passed by reference  as there is a & sign and not * sign with them. The major change is the usage of const keyword here. Const keyword restricts us so we cannot make any change to s1 or s2 object.

void Shape :: member ( const Shape& s1, const Shape& s2 ) const ; // plus the function is const

The s1 and s2 objects are passed by reference  as there is a & sign and not * sign with them. const keyword restricts us so we cannot make any change to s1 or s2 object as well as the Shape function itself.

Answer:

The wireless adapter driver software.

Explanation:

All computer systems are composed of hardware and software components. The hardware components is driven by the software components.

The operating system software is the mainly software component of the computer system, which creates the proper environment to run application software. It also runs the activities the hardware with the connection called the kernel.

Kernels are device drivers that runs the hardware components. The wireless adapter is the hardware that needs the wireless adapter driver to be recognised run by the computer.

Answer:

See Answer Below:

Explanation:

a) (22+42) (54 x 99)

= (22 + 42) × (54 × 99)

  (*      (+ 22 42)

           (* 54 99))

(b)    ((22+42) x 54) x 99

      = (*     (*    (+ 22 42)

                       54

                 99)

(c)  64 x 102 + 16 x (44/22)

   = (+    (* 64 102)

             (* 16

                 (/ 44 22) ) )

Final answer:

The pseudocode for a program that outputs the product of three user-entered values involves prompting the user for each value, calculating the product by multiplication, and displaying the result.

Explanation:

Writing Pseudocode for a Multiplication Program

The task is to write pseudocode that represents the logic of a program allowing a user to enter three values and then outputs the product of these values. The product refers to the result of multiplying the three numbers together. Below is the pseudocode for accomplishing this task:

START
   Prompt user to enter the first value
   Read firstValue
   Prompt user to enter the second value
   Read secondValue
   Prompt user to enter the third value
   Read thirdValue
   Set product to firstValue multiplied by secondValue multiplied by thirdValue
   Output product
END

This simple algorithm prompts the user to input three separate values and calculates the product by multiplying them together. The result is then displayed to the user.

Final answer:

The pseudocode for calculating the product of three user-entered values consists of reading the values, computing the product, and outputting the result.

Explanation:

The student is asking for pseudocode to calculate the product of three values entered by the user. Pseudocode is an informal way of programming description that does not require any strict programming language syntax, yet it describes the logic of the algorithm clearly. Below is an example of how this pseudocode might look:

START
   Prompt user for first value
   Read value1
   Prompt user for second value
   Read value2
   Prompt user for third value
   Read value3
   Set product = value1 * value2 * value3
   Output product
END

This pseudocode begins by prompting the user to enter three values. It then reads the values into three variables, calculates the product of these values by multiplying them, and finally outputs the product.

Answer:

One

Explanation:

A network is the interconnection and communication of two or more computer devices. Computer systems on a network shares resources with one another, using network standards like OSI and TCP/IP suite model and using the protocols on each layers.

There are two major types of network communication between devices and they are peer to peer or point to point Network and client-server network.

Point to point Network uses one secure physical link to connect two computers or routers in a network.

Answer:

Following is given the code according to requirement.

The code is attached as an image so that the indentation is understood by the user. Comments are given inside the code where necessary.

The output of code is also attached as well  in end.

I hope it will help you!

Explanation:

Answer:

Answer is explained below

Explanation:

Data: Data are raw facts and figures that are collected together for analysis. In other words, Simple no processing is data.

Information: Information is the facts provided about something. In simple terms, processed data is information.

Knowledge: Knowledge is the processed facts that are understand for a conclusion.

1. An item's UPC number - data

Explanation: An item number is data because simple no processing is required.

2. Change back to customer - information

Explanation: Data about a customer is information.

3. General changes to demand in different seasons - knowledge

Explanation: Requires data (time and quantity purchased) to be processed/aggregated into information. The information is understood to provide a pattern of demad changes due to seasons.

4. Cost each - data

Explanation: Cost each is data because simple no processing is required.

5. Quantity purchased - data

Explanation: Cost each is data because simple no processing is required.

6. Non-taxable total - information

Explanation: -- requires that data (prices, amounts and whether the item is taxable) to be processed (price * amount for items that are non-taxable).

7. Extended cost [quantity times cost each] - information

Explanation: Extended cost requires processing two pieces of data quantity and cost

8. Amount tendered - data

Explanation: Amount tendered is data because simple no processing is required.

9. Sales of an item for the last week - information

Explanation: Sales of an item for the last week requires aggregating sales for a specific time frame together

10. Upcoming holidays and customer's special needs - knowledge

Explanation: Upcoming holidays and customer's special needs requires holiday data (dates) to be combined with information gathered about customer to understand customer's special needs

11. How paid [cash, charge card, debit card] - data

Explanation: Cost each is data because simple no processing is required.

12. Shopper loyalty card number - data

Explanation: Cost each is data because simple no processing is required.

13. Taxable total - information

Explanation: Taxable total requires that data (prices, amounts and whether the item is taxable) to be processed (price * amount for items that are taxable).

Answer:

//import Scanner class to allow the program receive user input

import java.util.Scanner;

//the class SumValue is define

public class SumValue {

   // main method that signify the beginning of program execution

   public static void main(String args[]) {

       // scanner object scan is defined

       Scanner scan = new Scanner(System.in);

       // prompt asking the user to enter value of integer X

       System.out.println("Enter the value of X: ");

       // the received value is stored in X

       int X = scan.nextInt();

       // prompt asking the user to enter value of integer Y

       System.out.println("Enter the value of Y: ");

       // the received value is stored in Y

       int Y = scan.nextInt();

       // prompt asking the user to enter value of integer Z

       System.out.println("Enter the value of Z: ");

       // the received value is stored in Z

       int Z = scan.nextInt();

       // The value of X is displayed

       System.out.println("The value of X is:  " + X);

       // The value of Y is displayed

       System.out.println("The value of Y is:  " + Y);

       // The value of Z is displayed

       System.out.println("The value of Z is:  " + Z);

       // The average of the three numbers is calculated

       int average = (X + Y + Z) / 3;

       // The average of the three numbers is displayed

       System.out.println("The average of " + X + ", " + Y + " and " + Z + " is: " + average);

   }

}

Explanation:

Answer:

B. Extract-transform-load

Explanation:

Extract, transform, load (ETL) and Extract, load, transform (E-LT) are the two main approaches used to ensure the success of a data warehouse system.

An extract-transform-load (ETL) process is used to pull data from disparate data sources to populate and maintain the data warehouse. An effective extract-transform-load (ETL) process is essential to ensure data warehouse success.

Option A (Visual Basic) is an example of programming language.

Answer:

b. extract-transform-load

Explanation:

A data warehouse is a repository of data gathered from other data sources, to provide a medium of central data streaming for data analysis and reporting purposes. It hold data from multiple source, where the data are extracted, transformed and loaded to the data warehouse.

ETL or extract-transform-load is very important for the successful implementation of data warehousing

Final answer:

If you think of the 9/11 terrorist attack when hearing about an airplane crashing into the Empire State Building, you are reacting to a flashbulb memory.

Explanation:

If you hear that an airplane crashed into the Empire State Building and immediately think of the 9/11 terrorist attack on the World Trade Center, you are reacting to a memory known as flashbulb memory. A flashbulb memory is an exceptionally clear recollection of an important and emotionally charged event.

Thus, a flashbulb memory is a vivid, detailed, and long-lasting recollection of the circumstances surrounding a significant, emotionally charged event. Many people remember exactly where they were and how they heard about significant events like 9/11, even years later. These memories can be vivid and distinct, often accompanied by strong emotions.

The type of memory you are experiencing is called a flashbulb memory so the correct option is C. a flashbulb memory.

Complete question:

If you hear that an airplane crashes into the Empire State Building, and you immediately think of the 9/11 terrorist attack on the World Trade Center, you are reacting to what type of memory?
A. a repressed memory
B. a suppressed memory
C. a flashbulb memory
D. a pseudo-memory

Answer:

using System;

namespace ConsoleApp3

{

   class Program

   {

       static void Main(string[] args)

       {

           double[] doubleArray = { 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0 };

           Console.WriteLine("Double Array values are:");

           foreach (var b in doubleArray)

           {

               Console.WriteLine(b);

           }

           Console.WriteLine("Enter value to find position in Array");

           var input = Console.ReadLine();

           var value = Convert.ToDouble(input);

           if (value == 99.0)

           {

               Environment.Exit(0);

           }

           try

           {

               var index = Array.IndexOf(doubleArray, value);

               if (index == -1)

               {

                   Console.WriteLine("Index was outside the bounds of the array");

                   Console.ReadLine();

               }

               else

               {

                   Console.WriteLine("Position in Array is:" + index);

                   Console.ReadLine();

               }

           }

           catch (Exception e)

           {

               Console.WriteLine("Index was outside the bounds of the array");

               Console.ReadLine();

           }

       }

   }

}

Explanation:

this is the code of console program which initialize the double array from 1-10 and displays the existing values of array in console.

Then it will take input from user, convert it to double and find the value position in double array.

if 99, then program will be exist

if exist in array:display the index position

else:index was outside the bounds of the array in try catch block.

Answer:

n = 15

Explanation:

Using

Given

Number of bytes = 32k

At the smallest scale in the computer, information is stored as bits and bytes.

In the cases when used to describe data storage bits/bytes are calculated as follows:

Number of bytes when n = 1 is 2¹ = 2 bytes

When n = 2, number of bytes = 2² = 4 bytes

n = 3, number of bytes = 2³ = 8 bytes

So, the general formula is

Number of bytes = 2^n

In this case

2^n = 32k

Note that 1k = 1024 bytes,

So, 32k = 32 * 1024 bytes

Thus, 2^n = 32 * 1024

2^n = 2^5 * 2^10

2^n = 2^15

n = 15.

Final answer:

To address 32K bytes uniquely using byte addressing, 15 bits are required which [tex]2^{15}[/tex] equals 32768, the number of bytes in 32K. This demonstrates a fundamental concept of how memory is addressed in computing.

Explanation:

Understanding the minimum number of bits required to represent a certain amount of memory is a fundamental concept in computer science. To represent 32K bytes where 'K' stands for kilo (1024) due to binary base, we need to calculate the minimum number of bits (n) to address each byte. Essentially, 32K bytes equals 32 * 1024 = 32768 bytes. The question is how many bits are required to uniquely address each of these bytes.

To find the value of n, we rely on the principle that each bit can represent 2 states. Therefore, [tex]2^{n}[/tex] should be equal to or greater than 32768. Calculating this, we see that  [tex]2^{15}[/tex]  = 32768 exactly, indicating that 15 bits are sufficient to address 32K bytes uniquely. Thus, n = 15.

This example highlights how binary representation and addressing work in computing, illustrating why understanding of binary and byte addressing is crucial in fields related to computers and technology.

Answer:

A MIPS Assembly procedure return to the caller by having the caller pass an output pointer (to an already-allocated array).

Answer:

Explanation:

Regularly in a company the senior management establish the policy and standards about the network and the employees, we can find different kind of these standards, for example:

Policies

Security policies

Standards

Answer:

A 1 MB digital file needs 0.23 seconds to transfer over a channel with bandwidth 10 MHz and SNR 10 dB.

Explanation:

We can calculate the channel capacity using Shannon's Capacity formula:

C = B + log₂ (1 + SNR)

Where C = Channel Capacity

           B = Bandwidth of the Channel

           SNR = Signal to Noise Ratio

We are given SNR in dB so we need to convert it into a ratio.

[tex]SNR_{dB}[/tex] = 10log₁₀ (SNR)

10 = 10log₁₀ (SNR)

1 = log₁₀ (SNR)

SNR = 10¹

SNR = 10

So, using Shannon Channel Capacity formula:

C = 10 x 10⁶ log₂ (1 + 10)

C = 34.5 MHz

Total amount of time required to transmit a 1MB file:

1MB = 1 x 8 Mbytes = 8Mb

C = 34.5 MHz = 34.5 Mb/s

Time required = 8Mb/34.5Mb/s = 0.23 seconds

A 1 MB digital file needs 0.23 seconds to transfer over a channel with bandwidth 10 MHz and SNR 10 dB.

Answer:

It reduces the cost of multiple subscription, but the cost of management is applied.

Explanation:

Cloud computing is the use of online resources like storage infrastructure available on database servers to hold company resources on a central level. There are various platforms available in adopting cloud services and they are SaaS or software as a service, PaaS, or platform as a service, IaaS or infrastructure as a service etc.

SaaS is a cloud computing services where software applications are made centrally available for an organisation. It reduces the cost of purchasing multiple activation keys for software traditionally installed. But it requires a skilled personnel and annual or monthly subscription, which when added together, might spike the cost of deployment.

Answer:

The solution or expression for each part is given below:

Explanation:

Following are attached the images that show how these expressions will be used. I hope they will make the concept clear.

All the images below are respective to the questions given.

Explanation:

The main reason why is because regular users don't have permission to write to /etc. Assuming this is Linux, it is a multi-user operating system. Meaning if there are user-application configuration files within /etc, it would prevent users from being able to customize their applications.

Answer:

   Following is the program in Python language  

def uniquely_sorted(lst1): #define the function uniquely_sorted

   uni_que = [] #creating an array

   for number in lst1: #itereating the loop

       if number not in uni_que: #check the condition

           uni_que.append(number)#calling the function

   uni_que.sort() #calling the predefined function sort

   return uni_que #returns the  unique values in sorted order.

print(uniquely_sorted()([8, 6, 90, 76])) #calling the function uniquely_sorted()

Output:

[6,8,76,90]

Explanation:

   Following are the description of the Python program

Answer:

To avoid contact with any contaminants that might be able to destroy the data.

Explanation:

Hard drives are usually self-contained, sealed devices and the case for the hard drive must remain sealed closed to avoid contact with any contaminants that might be able to destroy the data.

Answer:

Following is given the data as required.

The images for histograms for age and gender are also attached below.

I hope it will help you!

Explanation:

Answer:

   public static int greaterThanInt(int n){

       return n+10;

   }

Explanation:

This is a very simple method in Java. it will accept an argument which is an integer n and return n+10 since the question requires that an arbitrary integer greater than n be returned adding any int value to n will make it greater than n.

A complete java program calling the method is given below:

import java.util.Scanner;

public class ANot {

   public static void main(String[] args) {

       Scanner in = new Scanner(System.in);

       System.out.println("Please enter an integer");

       int n = in.nextInt();

       int greaterInt = greaterThanInt(n);

       System.out.println("You entered "+n+", "+greaterInt+" is larger than it");

   }

   public static int greaterThanInt(int n){

       return n+10;

   }

}

Answer:

Following are the statement in the c++ language

ifstream inFile;  // declared a variable inFile

ofstream outFile; //declared a variable outFile

Explanation:

The  ifstream and ofstream  is the file stream object in the c++ Programming language .The ifstream file stream object is used for reading the contents from the file whereas the ofstream  file stream object is used for writting the contents into the file.

        ifstream variablename;

        ofstream  variablename

Answer:

Explanation:

One of the basic notions of the software development process is SDLC models which stands for Software Development Life Cycle models. SDLC – is a continuous process, which starts from the moment, when it’s made a decision to launch the project, and it ends at the moment of its full remove from the exploitation. There is no one single SDLC model. They are divided into main groups, each with its features and weaknesses. The most used, popular and important SDLC models are given below:

1. Waterfall model

2. Iterative model

3. Spiral model

4. V-shaped model

5. Agile model

Stage 1. Planning and requirement analysis

Each software development life cycle model starts with the analysis, in which the stakeholders of the process discuss the requirements for the final product.

Stage 2. Designing project architecture

At the second phase of the software development life cycle, the developers are actually designing the architecture. All the different technical questions that may appear on this stage are discussed by all the stakeholders, including the customer.  

Stage 3. Development and programming

After the requirements approved, the process goes to the next stage – actual development. Programmers start here with the source code writing while keeping in mind previously defined requirements. The programming by itself assumes four stages

• Algorithm development

• Source code writing

• Compilation

• Testing and debugging

Stage 4. Testing

The testing phase includes the debugging process. All the code flaws missed during the development are detected here, documented, and passed back to the developers to fix.  

Stage 5. Deployment

When the program is finalized and has no critical issues – it is time to launch it for the end users.  

SDLC MODELS

Waterfall – is a cascade SDLC model, in which development process looks like the flow, moving step by step through the phases of analysis, projecting, realization, testing, implementation, and support. This SDLC model includes gradual execution of every stage completely. This process is strictly documented and predefined with features expected to every phase of this software development life cycle model.

ADVANTAGES  

Simple to use and understand

DISADVANTAGES

The software is ready only after the last stage is over

ADVANTAGES

Management simplicity thanks to its rigidity: every phase has a defined result and process review

DISADVANTAGES

High risks and uncertainty

Iterative SDLC Model

The Iterative SDLC model does not need the full list of requirements before the project starts. The development process may start with the requirements to the functional part, which can be expanded later.  

ADVANTAGES                                        

Some functions can be quickly be developed at the beginning of the development lifecycle

DISADVANTAGES

Iterative model requires more resources than the waterfall model

The paralleled development can be applied Constant management is required

Spiral SDLC Model

Spiral model – is SDLC model, which combines architecture and prototyping by stages. It is a combination of the Iterative and Waterfall SDLC models with the significant accent on the risk analysis.