Answer:
Message encoding, message size and delivery option.
Explanation:
The protocols used in network communications define the details of how a message is transmitted, including requirements for message delivery options, message timing, message encoding, formatting and encapsulation, and message size.
What is the most important quality of lossless compression?
Answer:
Text
Explanation:
When a file is being compressed from it original form to a compressed form, it's important that the text retains its unique form or at the very least, it should be similar to its original form
This is so because a little drop in quality can cause distortion to the text and thereby changing its meaning or making it unreadable.
The most important quality of lossless compression is that there is no data loss.
Lossless compression is the use of data compression algorithms or techniques to compress an original data to a compressed data with no data loss in the compression process.
Hence, the contents of the compressed data is identical to the original data, therefore the original data to can be reconstructed from the compressed data.
We can conclude that there should be no loss of data during lossless compression.
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definition of a network, what three components are used to create a network?
Answer:
There are three primary components to understanding networks: 1. Physical Connections; 2. Network Operating System; and 3. Application Component. ... However, the whole network stops if the main cable or bus is severed or disconnected.
Explanation:
Why is two way communication important for the new communications network?
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.
What is the ability for a system to respond to unexpected failures or system crashes as the backup system immediately and automatically takes over with no loss of service
Answer:
The appropriate answer will be "Fault Tolerance".
Explanation:
This relates to and is therefore a device rather than a program with nothing more than a self-contained contingency mechanism that enables uninterrupted supply when key characteristics fail. A system has been regarded as fault-tolerant although this keeps working satisfactory manner throughout the existence of one and sometimes more circumstances of failure.A description of information use mapping is to identify opportunities for additional feedback mechanisms.A. TrueB. False
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.
Write a program using integers user_num and x as input, and output user_num divided by x three times. Ex: If the input is: 2000 2 Then the output is: 1000 500 250
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," ")
Using the drop-down menus, identify the harmful behavior in each scenario. An IT worker at a government agency tells his friends about the work he is doing for computers aboard spy planes.
Answer:
✔ national security breach
✔ identify theft
✔ software piracy
✔ sale of trade secrets
✔ corporate espionage
Which of these terms describe a facility that stores hundreds, if not thousands, of servers?
a) KVM
b) switchWeb server
c) Data center
d) SSH server
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.
The architecture in which the database resides on a back-end machine and users access data through their workstations is
Answer:
Client-server
Explanation: The client-server model is a type of model or architecture in which a client (Customer) requests for services from another known as the server which serves as the service provider.
In the client-server architecture, the database resides in the back end machine, from where services can be rendered to the client or users.
Answer:
Client-Server Model
Explanation:
The Client-Server model structure divides tasks between clients, which are the the requesters of services, and servers, which are the providers of services or resources.
Information or data, is usually stored securely in the backend or server machine. Users then access these information by communicating with the server over a computer network.
Example is when a user requests a webpage using a website's address. The server gets the request from the client and finds the page in the database residing in the backend, then serves it up to the user when found.
Which if the following ribbons in Microsoft word is used to add tables and images
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.
I'LL GIVE BRAINLIEST Program to total all numbers in a list: Create an empty list Ask user to enter a number to add to the list. Continue to ask user to enter a number and continue adding the number to the list until user enter “stop” Add all the numbers in the list and display the total
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)
If you define CSS rules on a parent control, the rules will be inherited by all of the children widgets.
A. True
B. False
Answer:
TRUE
Explanation:
The move up only one line in Microsoft Word, use the following method: (a) press Ctrl + Home Keys (b) Press Home Keys (c) Press Ctrl + Up Arrow Keys (d) Press Up Arrow Keys
Answer:
(d) Press Up Arrow Keys
Explanation:
(a) press Ctrl + Home Keys
Incorrect(b) Press Home Keys
Incorrect(c) Press Ctrl + Up Arrow Keys
Incorrect(d) Press Up Arrow Keys
CorrectExplanation:
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
A palindrome is a string that reads the same forward and backward. a substring is a contiguous subset of characters in a string. Given a string s how many distinct substrings of s are palindromes
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.
Which of the following laptop features allows users to overcome keyboard size restrictions?
A. Touchpad
B. Numeric Keypad
C. Fn Key
D. Digitizer
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.
Encrypt the message ENCRYPTION using a tabular transposition cipher with encryption keyword ONE. If necessary, pad the message with A's. Use only capital letters in your answer. Do not use spaces in your answer.
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
Identify and define the root in the word belligerent HELP ME PLZ
Answer:
belli
Explanation:
belli means war
Statisticians would like to have a set of functions to compute the mean, median and mode of a list of numbers. The mean is the average of the numbers in the list. The median is the number that would appear at the midpoint of a list if it were sorted. The mode is the number that appears most frequently in the list. Define these functions. Please use the starter code stats.py. Expected output: List: [27, 5, 18, 66, 12, 5, 9] Mode: 5 Median: 12 Mean: 20.285714285714285
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))
in what ways are hardware and software different? in what ways are the the same?
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!!
Which of the following is the general term used to describe software code that isdesigned to cause damage to a computer system?
A) Virus
B) Malware
C) Adware
D) Madware
Answer:
B. Malware
Explanation:
Malware is the general term used to describe software code that is designed to cause damage to a computer system
Malware also known as malicious software. It is a single term which refers to virus, trojans, adware spy ware, rogue, scare ware, worm etc.
They are intentionally designed to cause damage to a computer system.
Through which of the devices listed are we able to connect to wireless networks? Check all that apply.
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.
What is the aim of wireless networks?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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Which of the following help departments organize unique access controls for access to folders and data files within a department or group so that only those employees who need access to confidential data are granted access?
A. Title-based access controls.
B. Role-based access controls.
C. Administrative access controls.
D. Privacy-based access controls.
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.
The information gathered by a probe, analyzed locally, and transmitted to a remote network management, is called
Answer:
Remote Network Monitoring (RMON)
Explanation:
The information gathered by a probe, analyzed locally, and transmitted to a remote network management, is called Remote Network Monitoring (RMON).
The Remote Network Monitoring (RMON) was developed in the early 1990s by Internet Engineering Task Force (IETF), which comprises of operators, network designers, researchers and vendors, saddled with the responsibility of designing, developing and promoting internet standards. It is a standardized method for monitoring, analyzing and troubleshooting network traffic on a remote ethernet transport (typically, through its port) to find network connection issues such as network collisions, dropped packets, and traffic congestion. A Remote Network Monitoring (RMON) is an extension of the Simple Network Management Protocol (SNMP) used to gather and manage informations or data about network systems performance.
In order to remotely monitor and gather informations about networks, a RMON probe which can either be a software or hardware is embedded into a network device with a Transmission Control Protocol and Internet Protocol (TCP/IP) such as a switch or router.
Basically, there are two (2) main versions of the Remote Network Monitoring (RMON);
1. RMON 1.
2. RMON 2.
What is the relationship between data, information, business intelligence, and knowledge?
Answer:
The answer is below
Explanation:
Given the following:
Data is oftentimes described as actual truth or evidence about a situation or condition.
Information, on the other hand, is described as a refined data
Business Intelligence is defined as a combination of several information utilized in the decision-making process.
Knowledge is basically described as a form of intellectual properties, which encompasses a lot of experiences, skills, and creativity.
Therefore, the main relationship between all these is the utilization of these resources to enhance and improve the decision-making process. This is because, the gathered DATA is converted to INFORMATION, which in turn used to build BUSINESS INTELLIGENCE and finally, through the combination of past experiences, skills and talent, leads to a wealth of KNOWLEDGE to enhance and improve the decision-making process.
Which of the following combines something you know, such as a password, with something you are (a biometric device such as a fingerprint or a retina scan) or something you possess (a smart card or a USB stick)?a. Confidentiality b. Authentication c. Two-factor authentication
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.
The SmoothWall open source firewall solution uses colors to differentiate networks. Which color indicates the private, trusted segment of a network
Answer:
Green
Explanation:
The Green color indicates the private, trusted segment of a network.
The Smoothwall open source firewall solution makes use of colors in order to differentiate networks. Other colors like red denote connection to the internet, purple and orange are used to designate DMZs for wireless access points.
Smoothwall is usually configured via web-based GUI and does not really require much knowledge to install or use.
3.19 LAB: Seasons In C++ Write a program that takes a date as input and outputs the date's season. The input is a string to represent the month and an int to represent the day. Ex: If the input is: April 11 the output is: Spring In addition, check if the string and int are valid (an actual month and day). Ex: If the input is: Blue 65 the output is: Invalid The dates for each season are: Spring: March 20 - June 20 Summer: June 21 - September 21 Autumn: September 22 - December 20 Winter: December 21 - March 19
Answer:
#include <iostream>
#include <string>
using namespace std;
int main() {
string mth;
int dy;
cin >> mth >> dy;
if ((mth == "January" && dy >= 1 && dy <= 31) || (mth == "February" && dy >= 1 && dy <= 29) || (mth == "March" && dy >= 1 && dy <= 19) || (mth == "December" && dy >= 21 && dy <= 30))
cout << "Winter" << endl;
else if ((mth == "April" && dy >= 1 && dy <= 30) || (mth == "May" && dy >= 1 && dy <= 30) || (mth == "March" && dy >= 20 && dy <= 31) || (mth == "June" && dy >= 1 && dy <= 20))
cout << "Spring" << endl;
else if ((mth == "July" && dy >= 1 && dy <= 31) || (mth == "August" && dy >= 1 && dy <= 31) || (mth == "June" && dy >= 21 && dy <= 30) || (mth == "September" && dy >= 1 && dy <= 21))
cout << "Summer" << endl;
else if ((mth == "October" && dy >= 1 && dy <= 31) || (mth == "November" && dy >= 1 && dy <= 30) || (mth == "September" && dy >= 22 && dy <= 30) || (mth == "December" && dy >= 0 && dy <= 20))
cout << "Autumn" << endl;
else
cout << "Invalid" << endl;
return 0;
}
Explanation:
Answer: sorry this is in coral
integer inputMonth
integer inputDay
inputMonth = Get next input
inputDay = Get next input
if (inputMonth == 1 and inputDay >= 1 and inputDay <= 31)
Put "winter" to output
elseif (inputMonth == 2 and inputDay >= 1 and inputDay <= 29)
Put "winter" to output
elseif (inputMonth == 3)
if (inputDay >= 1 and inputDay <= 19)
Put "winter" to output
elseif (inputDay > 19 and inputDay <= 31)
Put "spring" to output
elseif (inputDay >=32)
Put "invalid" to output
elseif (inputMonth == 4 and inputDay >=1 and inputDay <= 30)
Put "spring" to output
elseif (inputMonth == 5 and inputDay >=1 and inputDay <= 31)
Put "spring" to output
elseif (inputMonth == 6)
if (inputDay >=1 and inputDay <= 20)
Put "spring" to output
elseif (inputDay >= 21 and inputDay <= 30)
Put "summer" to output
elseif (inputDay >=31)
Put "invalid" to output
elseif (inputMonth == 7 and inputDay >=1 and inputDay <= 31)
Put "summer" to output
elseif (inputMonth == 8 and inputDay >=1 and inputDay <= 30)
Put "summer" to output
elseif (inputMonth == 9)
if (inputDay >=1 and inputDay <=21)
Put "summer" to output
elseif (inputDay >= 22 and inputDay <=30)
Put "autumn" to output
elseif (inputDay >=31)
Put "invalid" to output
elseif (inputMonth == 10 and inputDay >=1 and inputDay <= 31)
Put "autumn" to output
elseif (inputMonth == 11 and inputDay >=1 and inputDay <= 30)
Put "autumn" to output
elseif (inputMonth == 12)
if (inputDay <= 0)
Put "invalid" to output
elseif (inputDay >= 1 and inputDay <= 20)
Put "autumn" to output
elseif (inputDay >=21 and inputDay<=31)
Put"winter" to output
else
Put "invalid" to output
Explanation:
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Steganography renders the message un-intelligible to outsiders by hiding it in a picture or other document.A. TrueB. False
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.
How many bits would be needed to count all of the students in class today? There are 5 children in the class.
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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