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Answer:

A. True.

Explanation:

The word Steganography is from the Greek word "Steganographia" where "Stego" means cover or concealed and "Graphia" means text/writing.

Steganography can be defined as data that is hidden within data. This simply means that, it is a cybersecurity technique used to hide information in another information and concealing the fact that a communication is in action or taking place.

In Computer science, Steganography is an encryption technique which is used alongside cryptography to cover or conceal the existence of a message (text) and render it un-intelligible to outsiders by transforming the message (text). Therefore, it is generally considered to be an extra-secure method to protect data from unauthorized access, use or piracy of copyright information. It is commonly used for audio, video and image files.

Hence, Steganography renders the message un-intelligible to outsiders by hiding it in a picture or other document.

Answer:

Insert tab

Explanation:

It is the second tab in the Ribbon. As the name suggests, it is used to insert or add extra features in your document. It is commonly used to add tables, pictures, clip art, shapes, page number, etc.

Answer:

Python Programming Language

import statistics

mylist =  [27, 5, 18, 66, 12, 5, 9]

print("Mode: ",statistics.mode(mylist))

print("Median: ",statistics.median(mylist))

print("Mean: ",statistics.mean(mylist))

Explanation:

This line imports stats.py into the program

import statistics

This line defines a list (The example list in the program)

mylist =  [27, 5, 18, 66, 12, 5, 9]

This line uses the defined function to calculate and print the mode

print("Mode: ",statistics.mode(mylist))

This line uses the defined function to calculate and print the median

print("Median: ",statistics.median(mylist))

This line uses the defined function to calculate and print the mean

print("Mean: ",statistics.mean(mylist))

Answer:

Add this statement to the code using format method:

result = "{} miles equals {:.1f} km".format(miles,km)

Explanation:

Here is the complete program:

def convert_distance (miles):

   km = miles * 1.6

   result = "{} miles equals {:.1f} km".format(miles,km)

   return result    

print(convert_distance(12))# should be: 12 miles equals 19.2 km

print(convert_distance(5.5)) # should be: 5.5 miles equals 8.8 km

print(convert_distance(11)) # Should be: 11 miles equals 17.6 km

The format() method is used to format the values of the specified parameters and insert the formatted values into the curly brackets which are called placeholders. The parameters of format() method here are miles and km . The first placeholder is for formatted value of miles variable and second placeholder is for formatted value of km variable. Note that placeholder for km has {:.1f} which means the value of km is rounded to 1 decimal place. For example if the value is 19.23245 then it is displayed up to 1 decimal place as: 19.2

The above program has a method convert_distance that takes miles as parameter and converts the value of miles to km by formula:

km = miles * 1.6

It then displays the output in the specified format using format() method. Now lets take an example:

print(convert_distance(5.5))

The above statement calls the method by passing the value 5.5 So,

miles = 5.5

Now the function converts this value to km as:

km = miles * 1.6

km = 5.5 * 1.6

km = 8.8

Statement: result = "{} miles equals {:.1f} km".format(miles,km) becomes:

{} first place holder holds the value of miles i.e. 5.5

{} second place holder holds the value of km up to 1 decimal place i.e. 8.8

Hence it becomes:

5.5 miles equals 8.8 km

So return result  returns the result of this conversion.

Hence the output is:

5.5 miles equals 8.8 km

The program and its output is attached.

The format method is used to substitute and format output data before they are eventually printed.

The complete statement using the format method is:

result = "{} miles equals {:.1f} km".format(miles,km)

From the question, we understand that the program is to output the converted distance to 1 decimal place.

The function definition receives miles as its argument, while the equivalent distance in kilometers is calculated within the function.

So,

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Answer:

Encrypted message: CPONYIERTN

Explanation:

Message = ENCRYPTION

keyword = ONE

keyword ONE is of length 3 so the rows are of length 3

Permutation is given by the alphabetical order of the letters in the keyword ONE. Here E appears first in alphabet, then comes N and in last comes O so the order would be 321.

Now the message ENCRYPTION is written in tabular form with width of the rows defined by a keyword ONE

O     N     E

3      2      1

E      N     C

R      Y     P

T       I     O

N

Now this message is read by the column in alphabetic order of the keyword ONE.

Since alphabetic order of E is 1 so the column under E is read first which has the letters:

CPO

Then column under N is read which has the letters:

NYI

In the last the column under O is read which has the letters:

ERTN

So the encrypted message is:

CPONYIERTN

Answer:

ANSWER FOR IT!

Explanation: Computer hardware is any physical device used in or with your machine, whereas software is a collection of programming code installed on your computer's hard drive. In other words, hardware is something you can hold in your hand, whereas software cannot be held in your hand.

Answer:

Computer hardware is any physical device used in or with your machine, whereas software is a collection of programming code installed on your computer's hard drive. In other words, hardware is something you can hold in your hand, whereas software cannot be held in your hand.

Similarities between Hardware and Software Development

They have behavior: Users interact with the products in various ways, products interact with other products, and products produce outputs given inputs

They have functional (user-facing) and non-functional (non-user-facing) requirements

They are complex: Any representation of product specifications invariably leads to a tree structure, as major features are decomposed into finer-grained features

Thanks 4 asking ur question. Hope u got it well!!

Answer:

Start the algorithm and check the weight of the ship. Load the crystalline to the ship. Check to see if the ship weighs ship weight + k pound crystalline, if less, add more crystalline. If excess, remove the excess crystalline, but if the weight meets the condition, then take off with the loaded ship to planet sigma.

Explanation:

The algorithm continuously checks the weight of the ship on loading with the calculated sum of the ship and k pound crystalline weight. The ship is able to load the correct maximum amount of crystalline to the planet sigma.

Answer:

The answer is below

Explanation:

Two way communication is a form of communication in which both the sender and receiver exchanges messages over a medium of exchange, which could be through mails, email, telephones etc.

Therefore, Two way communication is important for the new communications network based on various reasons, amongst which are:

1.  It serves as medium or means of getting feedback from consumers on what they want concerning services.

2.  It helps to get or samples opinions of the targeted audience's needs.

3.  It enhances the customers - service providers' cordial relationship in terms of quality service delivery.

Click File in any Office app, then click the familiar '?' button in the top right corner. Alternatively, you can open the Help Viewer window for the Office app you're working on at any time by pressing the F1 function key.

Microsoft Word allows you to easily create simple word processing documents such as letters and reports, as well as add color and clip art.

Writing in different fonts and sizes, as well as using tables, borders, and bullet formatting, reduces monotony and increases productivity.

Microsoft Word is a word processing program that can create simple and complex documents.

The help feature within applications is usually the quickest and simplest way to get assistance.

Access it in Windows by pressing F1 from within the application, or by selecting the question mark near the top of the screen.

In macOS, for example, if you're in Word, you can select Word Help from the Help menu.

Thus, this way, one can access help in word.

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#SPJ2

Answer:

d. All of the above

Explanation:

Top Hat is a online tool to that the teachers use to interact and teach their students. It is one of the student engagement platform which the professors use it inside as well as outside of the classroom.

It provides the lecture tool which tracks the attendance of the students, asks them questions, features the interactive slides and also manages the classroom discussions.

The items which are identified as a orange icon on TopHat is for review and see the item content or assignment. It means that you have access it outside the class room and your item is only for review and it will not be graded.

Answer:

All the devices enable us to connect to wireless networks.

Explanation:

The complete question is...

Through which of the devices listed are we able to connect to wireless networks? Check all that apply.

Antenna

Smart TV

Telephone

Radio

Antenna allow us connect to wireless microwave signals either terrestrial or satellite based.

Smart TV allows wireless connection to the internet.

Modern digital telephones known as 'mobile phones' allows wireless connection between users.

Modern radios use digital wireless network to terrestrial and satellite transmitters.

We can connect to wireless networks via radios and antennas.

A wireless network is known to be a type of network that helps to connects computers without the used of network cables.

Note that Computers often uses radio communications to transmit data between one another. A person can communicate directly with other wireless computers via  a wireless radios and antennas..

See options below

Check all that apply.

Antenna

Smart TV

Telephone

Radio

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Answer:

The program written in Python is as follows:

user_num = int(input("Number: "))

x = int(input("x: "))

for i in range(1,4):

     user_num = user_num/x

     print(user_num," ")

Explanation:

This line gets user_input from the user

user_num = int(input("Number: "))

This line gets x from the user

x = int(input("x: "))

This line iterates from 1 to 3

for i in range(1,4):

This line divides user_num by x

     user_num = user_num/x

This line prints the result of the division

     print(user_num," ")

Answer:

c. Two-factor authentication

Explanation:

The type of security measure that is being described is known as Two-Factor authentication. This is a security measure in which an individual is only granted access after successfully presenting two or more pieces of evidence to an authentication mechanism. These two forms of evidence can vary from service to service, for example a company may require that the user enter a password and a fingerprint scan, or may ask for a password and SMS code sent to the individual's phone.

Answer:

The appropriate answer will be "Fault Tolerance".

Explanation:

Answer:

The feature of a server that makes it a potential and likely target of hacker attacks is it network capability.

Hackers are interested in attacking as many computers as possible.  Therefore, their best target is a server that serves the networked resources, computers, and systems.  From that point, their malwares can be distributed easily and smoothly to unsuspecting computer stations so that they in turn start replicating the malware and also malfunction.

Explanation:

Bear in mind that a server manages all network resources.  The storage capability resides in a server.  The security settings are usually installed in the server to serve all networked devices and systems.  It is from the server that all systems are administered.  Servers are usually dedicated to their server roles and nothing else.

Answer:

TRUE

Explanation:

To represent the 5 children as a computer bit, we make use of the equation [tex]2^b = n[/tex]. 3 bits are required to represent the 5 children.

Given that

[tex]n = 5[/tex] ---- number of children

The number of bits (b) is calculated as:

[tex]2^b = n[/tex]

Substitute 5 for n

[tex]2^b = 5[/tex]

Take logarithm of both sides

[tex]\log(2)^b = \log(5)[/tex]

Apply law of logarithm

[tex]b \times \log(2) = \log(5)[/tex]

Make b the subject

[tex]b = \frac{\log(5)}{\log(2)}[/tex]

[tex]b = 2.32[/tex]

The number of bits must be an integer. So, we use the greatest integer closest to 2.32. The integer is 3

So:

[tex]b=3[/tex]

Hence, the number of bits to represent the 5 children is 3.

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Answer:

Social engineering.

Explanation:

Answer:

The answer is below

Explanation:

Security Procedure is a term often used in Computer Science, to describe strategies and techniques employed in confirmation or recognizing differences in electronic data of various individuals. It involves the application of codes and other sequential calculations to carry out this procedure.

While baseline is a term often used in computer to describe a set of characteristics of a product or a form of the reference point in which comparison can be made for various products of similar characteristics. It can also mean the starting point of project work.

Answer:

Here is the Python program to compute how many distinct substrings of a string s are palindromes:

def AllPalindromes(s, l, h, sub):  #function that finds all the palindromes

while l >= 0 and h < len(s) and s[l] == s[h]:  #the loop iterates and reads the s until s[l.h] is a palindrome

 sub.add(s[l: h + 1])  #adds the palindromes to sub

 l = l - 1  #decrements the count of l by 1

 h = h + 1 #increments the count of h by 1

def DistinctPalindromes(s):  #function to find all distinct palindromic substrings of s and also their number

substr = set()  #stores all distinct substrings of s which are palindromes

for i in range(len(s)):  #iterates through s

 AllPalindromes(s, i, i,substr) # find all  palindromes with odd length and with s[i] as mid point

 AllPalindromes(s, i, i + 1, substr) # find all  palindromes with even length and with s[i] as mid point

print("palindromic substrings are",substr, '\n',end='')  # display all distinct palindromic substrings

print(len(substr),"distinct substrings of",s,"are palindromes") # display the number of distinct palindromic substrings

print("Enter a string:")  #prompts user to enter a string

s = input()  #accepts input from user

DistinctPalindromes(s)  #calls DistinctPalindromes method by passing input string to it in order to compute the

Explanation:

The program is well explained in the comments attached with each statement of the code. The function AllPalindromes finds all the palindromes of string s. while loop iterates and reads the string forward and backward to find same i.e. palindrome. Here h and l represents high and low part of the string s. They can also be called as forward and backward pointers to the s characters. The while condition also checks the characters at s[l] position in the string s is equal to the character at s[h].  add() method is used to push all palindromes into the set  sub. The function DistinctPalindromes is used to find all the distinct substrings of s that are palindromes. The loop iterates through characters of string s and calls AllPalindromes method to find all palindromes with odd and even length. It then prints the distinct palindromic substrings . For examples s = "aabaa" then the palindromic substrings are {'aabaa', 'b', 'aba', 'a', 'aa'}  and the number of distinct substrings of aabaa that are palindromes is 5. The program along with its output is attached in a screenshot.

Answer:

(c) Data center

Explanation:

A data center is a centralized location that stores several computing and networking devices such as servers, routers, switches, e.t.c. The main purpose of the data center is to ensure the smooth collection, storage, processing, distribution and access of very large amount of data.

They (data centers) can also store and provide web application, email application and instant messaging services and lots of other things.

Because of the massive number of servers they store, they are sometimes regarded to as server farms.

Some data centers in Africa include:

i. Main One.

ii. DigiServ.

iii. Rack Center.

Answer:

B. Role-based access controls

Explanation:

Roll-based access control is a way to control access to the network and to data which depends on the position of employees in a department. This way the permission to access information are granted according to roles that are assigned to employees. This type of access control allows access privileges to employees only to the folders and data files which they need in order to perform their tasks and it does not allow them to access the data or information which is not relevant to them. This helps the department to secure the sensitive information and data files and reduces the risk of data breaches.

Answer:

numberlist = []

str = ""

while str != "stop":

 str = input("Enter a number: ")

 if str != "stop":

   try:

     numberlist.append(float(str))

   except:

     print("Ignoring", str)

print("The sum is ",sum(numberlist))

Explanation:

This solution also supports floating point numbers!

Answer:

Explanation:

list = []

while True:

num = input("Enter a number: ")

if num == "stop":

break

list.append(int(num))

total = 0

for i in list:

total += i

print(total)

Answer:

The program written in python is as follows

persons = []

most = 0

personindex = 0

for i in range(1,11):

      print("Person ",i)

      pancake = int(input(": "))

      persons.append(pancake)

      if pancake > most:

             most = pancake

             personindex = i

print("Person ",personindex," ate most pancakes")

Explanation:

This line initializes an empty list

persons = []

This line initializes variable most to 0

most = 0

This line initializes variable personindex to 0

personindex = 0

This line iterates from 1 to 10

for i in range(1,11):

The next two line prompts user for input

      print("Person ",i)

      pancake = int(input(": "))

This line inserts the user input to the created list "persons"

      persons.append(pancake)

The next if statement checks for the person with the most pancakes

      if pancake > most:

             most = pancake

             personindex = i

This line prints the person with most pancakes

print("Person ",personindex," ate most pancakes")

Answer:

✔ national security breach

✔ identify theft

✔ software piracy

✔ sale of trade secrets

✔ corporate espionage

Answer:

Microsoft Baseline Security Analyzer

Explanation:

Answer:

C. Fn Key

Explanation:

The Fn key represents the function key that used for the dual purpose. It is to be activated with the help of shift key. Also, it controls the functions of the hardware i.e. brightness of the computer or laptop screen, volume of the speaker, etc

Also, it overcomes the restrictions with respect to the size of the keyboard

hence, the correct option is c.  

Is a laptop features allows users to overcome keyboard size restrictions.

Answer: True

Explanation: Information mapping could simply be explained as a procedure employed in matching or pitting together relevant articles, information or thoughts on a certain idea or relating to a particular domain. These gathered information are of immense importance in business and other domains as it helps manufactures and service providers with the needed data required to identify consumer wants and available opportunities. Hence information use mapping provide additional feedback opportunities enabling businesses to adjust, provide better services.

Answer:

a) true

Explanation:

Effective collaboration is a form of business organization strategy that is utilized by various firms, which is based on carrying out better collaborative or synergy software and proposes a visionary and holistic technique that incorporates company objectives and technology capability.

Hence, in this case, it is TRUE that effective collaboration requires a proactive and holistic strategy that integrates business goals and technology potential.

Answer:

(d) Press Up Arrow Keys

Explanation:

(a) press Ctrl + Home Keys

(b) Press Home Keys

(c) Press Ctrl + Up Arrow Keys

(d) Press Up Arrow Keys

Explanation:

The move up only one line in Microsoft Word, use the following method:

[tex]\huge{\underline{\underbrace{\mathcal\color{gold}{Answer}}}}[/tex]

press up arrow keys