which of the following resources type is mostly likely to be shared common resource in a computer network environment
a) printers
b) floppy disk drives
c) speakers
d) keyboards​

Answer:

import java.util.ArrayList;

import java.util.Collections;

public class MyArrayList<T> extends ArrayList<T> {

 public boolean add(T obj) {

   if (Collections.frequency(this, obj) < 2) {

     return super.add(obj);

   }

   return false;

 }

}

Explanation:

According to the requirement, an element with the same value can occur at most twice in the list.

The Collections.frequency utility is useful to count the occurrances.

Sure, here's an implementation of the `MyArrayList` class that extends `java.util.ArrayList` and overrides the `add` method as described:

```java

import java.util.ArrayList;

import java.util.HashMap;

import java.util.Map;

public class MyArrayList<E> extends ArrayList<E> {

   "ATTHERATE"Override

   public boolean add(E obj) {

       // Count occurrences of each element in the list

       Map<E, Integer> countMap = new HashMap<>();

       for (E element : this) {

           countMap.put(element, countMap.getOrDefault(element, 0) + 1);

       }

       // Check if obj occurs in the list only once or not at all

       if (!countMap.containsKey(obj) || countMap.get(obj) == 1) {

           return super.add(obj);

       }

       // If obj occurs more than once, do nothing

       return false;

   }

}

```

In this implementation, the `add` method first counts the occurrences of each element in the list using a `HashMap`.

Then, it checks whether the given object `obj` occurs only once or not at all in the list. If so, it adds the object to the list using the `super.add(obj)` call.

If `obj` occurs more than once, the method does nothing by returning `false`. This way, the `MyArrayList` class ensures that duplicates are added only once, or not at all, as required.

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(a) convert (101011)₂ = ( )₁₀ ?

(b) convert(596)₁₀= ( )₁₆ ?

(c) convert( 101011101)₂ = ( )₁₆ ?

(d) convert(37)₁₀= ( )₂ ?​

(a) (101011)₂ = ( 43)₁₀

(b) (596)₁₀= ( 254)₁₆

(c) ( 101011101)₂ = ( 15D)₁₆

(d) (37)₁₀= ( 100101)₂

(a) convert (101011)₂ = ( )₁₀

This means that (101011)₂ be converted to base 10 (decimal).

To convert from binary to decimal, find the sum of the binary digits times their power of 2. i.e

(101011)₂ = 1 x 2⁵ + 0 x 2⁴ + 1 x 2³ + 0 x 2² + 1 x 2¹ + 1 x 2⁰

(101011)₂ = 1 x 32 + 0 x 16 + 1 x 8 + 0 x 4 + 1 x 2 + 1 x 1

(101011)₂ = 32 + 0 + 8 + 0 + 2 + 1

(101011)₂ = 43₁₀

Therefore, (101011)₂ = ( 43)₁₀

(b) convert(596)₁₀= ( )₁₆

This means that (596)₁₀ be converted to base 16 (hexadecimal).

To convert from decimal to hexadecimal,

i. start by dividing the decimal number by 16 taking note of the result and the remainder.

ii. divide the result obtained in (i) by 16 and take note of the new result and the remainder.

iii. repeat steps i and ii until the result is 0.

iv. the result is a combination of the remainders starting from the last.

16 | 596

16 | 37 r 4

16 | 2 r 5

    | 0 r 2

Now combine the remainders starting from the bottom up. i.e

254₁₆

Therefore, (596)₁₀= ( 254)₁₆

(c) convert ( 101011101)₂ = ( )₁₆

This means that (101011101)₂ be converted to base 16 (hexadecimal).

To convert from binary to hexadecimal,

i. starting from the rightmost bit, group the binary digits into a group of 4 bits as follows

101011101 => 1   0101    1101

ii. the group that does not contain 4 bits is padded with 0s

101011101 => 0001   0101    1101

iii. using the hexadecimal table, convert each group to hexadecimal as follows.

0001 = 1

0101 = 5

1101 = D

iv. combine the result

15D

Therefore, ( 101011101)₂ = ( 15D)₁₆

(d)  convert(37)₁₀= ( )₂

This means that (37)₁₀ be converted to base 2 (binary).

To convert from decimal to binary,

i. start by dividing the decimal number by 2 taking note of the result and the remainder.

ii. divide the result obtained in (i) by 2 and take note of the new result and the remainder.

iii. repeat steps i and ii until the result is 0.

iv. the result is a combination of the remainders starting from the last.

2 | 37

2 | 18 r 1

2 | 9 r 0

2 | 4 r 1

2 | 2 r 0

2 | 1 r 0

  | 0 r 1

Now combine the remainders starting from the bottom up. i.e

100101₂

Therefore, (37)₁₀= ( 100101)₂

Answer:maybe start a new page or try hitting delete

Explanation:

Answer:

C. Social Engineering

Explanation:

Social engineering can be defined as an art of manipulating people, especially the vulnerable to divulge confidential information or performing actions that compromises their security.

Basically, it is a manipulative strategy or technique that involves the use of deceptive and malicious activities on unsuspecting victims in order to gain unauthorized access to their confidential or private information for fraud-related purposes. Some examples of social engineering attacks include quid pro quo, spear phishing, baiting, tailgating, water-holing, vishing, pretexting, phishing, etc.

Phishing is an attempt to obtain sensitive information such as usernames, passwords and credit card details or bank account details by disguising oneself as a trustworthy entity in an electronic communication usually over the internet.

Furthermore, phishing is a type of fraudulent or social engineering attack used to lure unsuspecting individuals to click on a link that looks like that of a genuine website and then taken to a fraudulent web site which asks for personal information.

In conclusion, social engineering being a form of cyber attack is not an advantage of a computer network.

Answer:

You can use formulas to create systems on excel.

Explanation:

Your answer is outline.

An outline is the tool that will help you the most when developing the content you will use in your presentation.

A presentation is a method of communicating information from a speaker to an audience.

Presentations are usually demonstrations, introductions, lectures, or speeches intended to inform, persuade, inspire, motivate, build goodwill, or introduce a new idea/product.

An outline is a list of the main topics and subtopics that you intend to cover in your presentation in a hierarchical order.

It can assist you in ensuring that your ideas flow logically and that no important points are overlooked.

A storyboard, on the other hand, is a visual representation of your presentation that shows the order of your slides, the images or videos you intend to use, and the text that will go with them.

Thus, the answer is outline.

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Answer:

The correct option is c. clear-signed data.

Explanation:

Clear-signed data enables a digital signature to be created by encrypting the message digest of the material to be signed using the signer's private key. But only the digital signature is encoded with base64 in this scenario. As a result, recipients who do not have access to S/MIME can see the content of the message but the message signature cannot be verified by them.

Based on the explanation above, the correct option is therefore c. clear-signed data.

Answer:

6.enable data to pass between computers in a network to aid communication between users. As a network engineer, you'll have responsibility for setting up, developing and maintaining computer networks within an organisation or between organisations.

7.Sony

At times, what seems to be an effective value network can also be vulnerable to quickly losing effectiveness. At one time, Sony Corporation set up a value network designed to have a "one-stop" gaming experience for its customers. From 2003 to 2008, Sony designed an all-encompassing gaming portal. However, the network was disrupted when computer hackers began breaking into the system and retrieving sensitive banking data from the network users. As a result, the effectiveness of the network was severely compromised.

Explanation:

Which of the following class definition defines a legal abstract class Group of answer choices

(a)

public class Rectangle abstract {

   public abstract double findArea ( );

}

(b)

public abstract class Rectangle {

   public abstract double findArea ( );

}

(c)

public class Rectangle {

   public abstract double findArea ( );

}

(d)

public class abstract Rectangle {

   public abstract double findArea ( );

}

(b)

public abstract class Rectangle {

   public abstract double findArea ( );

}

When a class is declared with the abstract keyword, the class is called an abstract class. Abstract classes cannot be instantiated and may include one or more abstract methods. If a class contains an abstract method, then it (the class) must be declared abstract.

In Java, abstract classes are defined using the following format:

[access_modifier] abstract class [name_of_class]

[access_modifier] specifies the access modifier of the class which could be public, private, e.t.c

abstract is the keyword that specifies that the class is an abstract class.

class is a keyword used for defining classes

name_of_class specifies the name of the class.

The only option that fulfils this format is option b where;

(i) The access modifier is public

(ii) The name of the class is Rectangle

Option a is not correct because the abstract keyword is supposed to come before the class keyword.

Option c is not correct because the keyword abstract is missing. In other words, the class must be declared abstract since it contains abstract method findArea();

Option d is not correct because the abstract keyword is supposed to come before the class keyword.

Answer:

B. Data Base Management System

Explanation:

A database management system (DBMS) can be defined as a collection of software applications that typically enables computer users to effectively and efficiently create, store, modify, retrieve, centralize and manage data or informations in a database. Generally, it allows computer users to efficiently retrieve and manage their data with an appropriate level of security.

Generally, a database management system (DBMS) acts as an intermediary between the physical data files stored on a computer system and any software application or program.

A data dictionary can be defined as a centralized collection of information on a specific data such as attributes, names, fields and definitions that are being used in a computer database system.

In a data dictionary, data elements are combined into records, which are meaningful combinations of data elements that are included in data flows or retained in data stores.

This ultimately implies that, a data dictionary found in a computer database system typically contains the records about all the data elements (objects) such as data relationships with other elements, ownership, type, size, primary keys etc. This records are stored and communicated to other data when required or needed.

Hence, a software that enables the organization to centralize data, manage the data efficiently while providing authorized users a significant level of access to the stored data, is called a Data Base Management System (DBMS).

Answer:

The solution in Python is as follows:

filename = input("File: ")

fll = open(filename, "r")

for line in fll:

for i in line.split():

 print(i,end='\t')

print()

Explanation:

The complete question implies that the program reads a file and displays the file content in a structured way (tabs or spaces)

The explanation is as follows:

This gets input for the file name

filename = input("File: ")

This opens the file for read operation

fll = open(filename, "r")

This iterates through the lines of the file

for line in fll:

This iterates through each line (splitted by space)

for i in line.split():

This prints the current element followed by a tab

 print(i,end='\t')

This starts printing on another line

print()

Answer:

Explanation:

There are many weaknesses/vulnerabilities, some of which are the following...

Default Network Hardware, many individuals will go out and buy a new router and install it in their home. These devices come with a preset configuration including a preset security password which is many times a default password used for every router of the same model. This can be easily obtained by anyone who can then access the network.

Access Point hacking, an experienced individual can use a packet sniffer to detect the SSID that is frequently sent from the router in order to create an access point to be able to access the network.

WEP encryption is another vulnerability. These are very low security passwords that can be cracked using different software in a short period of time.

These are some of many vulnerabilities that wireless local networks have, but there are also many precautions and security measures that can be taken to prevent them.

Answer:

Spelling

Word processors contain an electronic spell checker. The student writer has immediate feedback about misspelled words. Student must discern which of the computer-generated spellings is correct for the context. Teachers no longer have to red-ink spelling errors. They can focus on the few exceptions the spellchecker does not catch.

Security

Teachers and students gain a sense of security about losing assignments. When the student saves her work, she avoids the possibility of the assignment being lost or misplaced. If an assignment is ever misplaced, a replacement can be easily printed.

Legibility

Teachers benefit by receiving a readable copy that is easy to grade. Students with poor handwriting can increase their scores with better looking papers. Students should be instructed to turn in copies of work in a readable font.

Publishing

Work done on a word processor can easily published on a bulletin board. Teachers can create electronic anthologies of their students' writings. Each student can receive an electronic copy of published works with no printing costs.

Mobility

Work done on a word processor and saved on the Internet is highly portable and accessible from any computer with Internet access. Dogs do not eat papers in cyberspace. "I forgot it at home" is irrelevant. Just log onto the nearest computer and your work appears on the screen.

Explanation:

Answer:

1. they are faster creation of document.

2.document can be stored for future use.

3. quality document are created.

4. it has access to higher variation.

5. tiredness Is greatly reduced.

Answer: hello your question has some missing data attached below is the missing data

answer : 10 gates

Explanation:

Logic diagram Using only AND, OR and inverter gates

x = A ⊕ B ⊕ C

attached below is the require Logic diagram Using only AND, OR and inverter gates .

number of inputs > 2

number of gates needed = 10

Explanation:

Hybrid computers are computers that exhibit features of analog computers and digital computers. The digital component normally serves as the controller and provides logical and numerical operations, while the analog component often serves as a solver of differential equations and other mathematically complex equations

Answer:

The program in Java is as follows:

import java.util.Scanner;

public class Main{

public static void main(String[] args) {

 Scanner input = new Scanner(System.in);

 double n1, n2;

 n1 = input.nextDouble();

 n2 = input.nextDouble();

 double Max = Math.max(n1,n2);

 double Min = Math.min(n1,n2);

 System.out.println("Max: "+Max);

 System.out.println("Min: "+Min); }}

Explanation:

This declares the numbers

 double n1, n2;

This gets input for n1

 n1 = input.nextDouble();

This gets input for n2

 n2 = input.nextDouble();

This gets the max of both using the max function

 double Max = Math.max(n1,n2);

This gets the min of both using the min function

 double Min = Math.min(n1,n2);

This prints the max

 System.out.println("Max: "+Max);

This prints the min

 System.out.println("Min: "+Min);

Answer: A. universal

Explanation: correct on Plato

Answer:

D. Creating mutiple goals.

Explanation:

The term [tex]\sf\purple{digital \:convergence}[/tex] refers to the use of a single unifying device that handles media, internet, entertainment, and phone needs.

[tex]\large\mathfrak{{\pmb{\underline{\red{Happy\:learning }}{\orange{.}}}}}[/tex]

Answer:

Telephone – Cable/ Radio -​ Wireless

Answer:

The following fix were made to the program

Explanation:

(1) void main implies that the main function will not return any value. So, you change it to int main() and then set the return value

(2) There is no need to pause the program, so system.("pause") is not necessary.

(3) The question says there are 5 candidates. So, we set the arrays to accommodate inputs for 5 values

(4) percent array is declared as float; 100.0 will ensure that it calculates the percentage as a float value.

See attachment for updated code

Answer:

Physical design.

Explanation:

Systems development life cycle (SDLC) is a strategic process that involves determining the overall system architecture, which is typically comprised of hardware, end users, physical processing components, software, and the communication channel that will effectively and efficiently satisfy the essential requirements of the system.

The system inputs and outputs is typically designed along with a plan of how the system's features will be navigated.

Basically, system design is divided into two (2) categories and these includes;

I. Logical design.

II. Physical design.

Furthermore, the design of service systems involves the process of planning, creating infrastructure, building communication, organizing staffs and standardization of a system so as to improve its quality and business relationships between the service provider and its clients.

In the physical design of systems development life cycle (SDLC), broad, user-oriented systems requirements are obtained from end users by companies and then translated into the detailed specifications that would be used to create a fully developed system.

Answer:

What do u call cow in earthquake??

Explanation:

Answer:

ok i made these by myself  hope you like it

Answer:

Operating System

Explanation:

The operating System lets the computer hardware and software work together.

Answer: Parallelogram A parallelogram is used to read data (input) or to print data (output). Rectangle A rectangle is used to show the processing that takes place in the flowchart. Diamond A diamond with two branches is used to show the decision making step in a flowchart.

HOPE THIS HELPS!!

Answer: See explanation

Explanation:

Human Resource Planning refers to the process whereby the future human resource requirements of an organization is predicted and how the current human resources that the organization has can be used to fulfill the goals.

Human resources planning is made as it's useful helping an organization meet its future demands by supplying the organization with the appropriate people.

Human resource planning also allows organizations plan ahead in order to have a steady supply of effective and skilled employees. It also brings about efficient utilization of resources. Lastly, it leads to better productivity and organizational goals will be achieved.

Answer:

C and B in that order

Explanation: