In order to store and retrieve data fast, hard disks are nonvolatile storage devices.
Why would someone utilize non-volatile memory?Non-volatile memory (NVM) is a category of computer memory with the capacity to retain stored data even after the power is switched off. NVM does not require the data in its memory to be refreshed on a regular basis, unlike volatile memory. For long-term reliable storage or secondary storage, it is frequently employed.
The kind of memory that is non-volatile?8.3. 4 ROM. Memory is referred to as non-volatile if it can maintain its values even when the power is turned off. Various read-only memory types were among the earliest non-volatile memory types (ROM).
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Problem Statement We have a two-dimensional board game involving snakes. The board has two types of squares on it: +'s represent impassable squares where snakes cannot go, and 0's represent squares through which snakes can move. Snakes may move in any of four directions - up, down, left, or right - one square at a time, but they will never return to a square that they've already visited. If a snake enters the board on an edge square, we want to catch it at a different exit square on the board's edge. The snake is familiar with the board and will take the route to the nearest reachable exit, in terms of the number of squares it has to move through to get there. Write a function that takes a rectangular board with only +'s and 0 's, along with a starting point on the edge of the board (given row first, then column), and returns the coordinates of the nearest exit to which it can travel. If multiple exits are equally close, give the one with the lowest numerical value for the row. If there is still a tie, give the one of those with the lowest numerical value for the column. If there is no answer, output
−1−1
The board will be non-empty and rectangular. All values in the board will be either
+
or 0 . All coordinates (input and output) are zero-based. All start positions will be 0 , and be on the edge of the board. For example,
(0,0)
would be the top left corner of any size input. Example Input Consider the following board: If a snake starts at the edge on the left (row 2 column 0 ), the snake will take the following path to another edge square (an exit) If the snake starts where the last one ended (row 5 column 2), the snake has two paths of length 5:
A function that takes a rectangular board with only +'s and 0 's print(f"The nearest exit Row : {distance[0][1]} , Column : {distance[0][2]}")
#returns list of entry points
def findEntryPoints(board,dim):
entryPoints=[]
for i in range(0,dim[0]):
if board[i][0] == "0":
entryPoints.append((i,0))
return entryPoints
#Returns a list which contains Distance from stating point , Coordinate of Exit Row and Coordinate of column
def snake(board,dim,x,y,start,visited):
#Condition for exit points are:
#1. x and y cannot be starting points i.e ( x=!start[0] or y!=start[0] )
#2. for exit points index of (x has to be 0 or dim[0]-1) or index of ( y has to be dim[1] -1 or 0)
# i.e(x==0 or x==dim[0]-1 or y==dim[1]-1 or y==0)
if (x != start[0] or y != start[1]) and (x==0 or x==dim[0]-1 or y==dim[1]-1 or y==0):
#returns a list which contains mininum steps from the exit point and the coordinate of exit point
return [0,x,y]
else:
MAX_VALUE=1000000000
#Creating minPath
minPath=[[MAX_VALUE,-1,-1] for i in range(0,4)]
visited[x][y]=True
#UP
if x-1>=0:
if visited[x-1][y]==False:
temp=snake(board,dim,x-1,y,start,visited)
minPath[0][0]=1+temp[0]
minPath[0][1]=temp[1]
minPath[0][2]=temp[2]
#DOWN
if x+1<dim[0]:
if visited[x + 1][y] == False:
temp = snake(board, dim, x + 1, y, start, visited)
minPath[1][0] = 1 + temp[0]
minPath[1][1] = temp[1]
minPath[1][2] = temp[2]
#LEFT
if y-1>=0:
if visited[x][y-1] == False:
temp = snake(board, dim, x, y-1, start, visited)
minPath[2][0] = 1 + temp[0]
minPath[2][1] = temp[1]
minPath[2][2] = temp[2]
#RIGHT
if y+1<dim[1]:
if visited[x][y+1] == False:
temp = snake(board, dim, x, y+1, start, visited)
minPath[3][0] = 1 + temp[0]
minPath[3][1] = temp[1]
minPath[3][2] = temp[2]
visited[x][y]=False
##sorting minPath[[]] first their distance between nearest exit then row and then column
minPath.sort(key=lambda x: (x[0],x[1],x[2]))
return minPath[0]
# Press the green button in the gutter to run the script.
if name == 'main':
dim=list(map(int,input("Enter the number of rows and columns in the board\n").strip().split()))
board=[]
visited=[[False for i in range(0,dim[1])] for i in range(0,dim[0])]
print("Enter the elements of the board")
#Creating the board
for i in range(0,dim[0]):
board.append(list(map(str,input().strip().split())))
# Intializing visited list to keep track of the elements which are
# not possible to visit and already visited elements.
for i in range (0,dim[0]):
for j in range(0,dim[1]):
if board[i][j] == "+":
visited[i][j]=True
#Returs the entry points list
entryPoints=findEntryPoints(board,dim)
distance=[]
#Appends the possible exits
for i in entryPoints:
distance.append(snake(board,dim,i[0],i[1],i,visited))
if len(distance) == 0:
print("-1 -1")
else:
#sorting distance[[]] first their distance between nearest exit then row and then column
distance.sort(key = lambda x: (x[0],x[1],x[2]))
print(f"The nearest exit Row : {distance[0][1]} , Column : {distance[0][2]}")
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Question 5 After previewing and cleaning your data, you determine what variables are most relevant to your analysis. Your main focus is on Rating, Cocoa.Percent, and Company.Location. You decide to use the select() function to create a new data frame with only these three variables. Assume the first part of your code is: trimmed_flavors_df <- flavors_df %>% Add the code chunk that lets you select the three variables.
What company appears in row 1 of your tibble? Videri Soma A. Morin Rogue
Adding the code section that allows you to choose from the three variables is the first step in your programme.
(Select) Rating, Cocoa.Percent, Company Location)
A code block is defined?Runnable R code is referred to as a code chunk. Reproducing the paper will need new computations. The probability of a mismatch between a paper's commentary and its discussed results is decreased, which makes code chunk technology advantageous.
Delete a code chunk by what method?Currently, my workaround is to fold the chunk and erase it or pick lines while holding down the "shift" key. The keyboard shortcuts for several cell actions supported by Jupyter Notebook include insert, run, cut, copy, and move.
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You are asked to recommend an email retrieval protocol for a company's sales team. The sales team needs to access email from various locations and possibly different computers. The sales team does not want to worry about transferring email messages or files back and forth between these computers. Which email protocol is designed for this purpose
With IMAP4, a mail server can store messages that users can access from different locations and client devices. A POP3 server necessitates the user downloading their email.
Which of the following protocols allows for safe email retrieval?Email on a remote web server can be accessed from a local client using the Internet Message Access Protocol (IMAP), a mail protocol. The two most often used Internet mail protocols for obtaining emails are IMAP and POP3.
What one of the following protocols do email servers communicate with one another using?Over the Internet, emails are delivered using the Simple Mail Transfer Protocol (SMTP). Most email clients send messages to the server using this protocol.
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In Bash which of the following commands can you use to view the contents of a document?
open
cat
less
dog
You can view a document's contents in Bash by using the cat and less commands.
In Linux, how do I view a directory's contents?To view the contents of a directory, use the ls command. The ls command prints the name of each provided File, the contents of each specified Directory, and any additional information you request with the flags to standard output.
How do you view the contents of a file using the Windows command prompt?Scripts for showing file contents (pg, more, page, and cat commands) You can change the speed at which your files are shown and inspect the contents of a file with the pg, more, and page commands.
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___________ characters is the average character length that will appear on a mobile device for your email.
25 to 30 characters is the average character length that will appear on a mobile device for your email.
How much time is excessive for an email?The studies and guidance from industry professionals indicate that 125 words maximum is your best bet. However, you should limit it to between 75 and 100 words for optimum impact. This is not to mean that you must adhere to this guideline in every single instance for every email you send.
What is the ideal email character count?40–100 characters is the optimum length. Best practises: Keep in mind that some of your readers might open your emails on their mobile devices. By making your preheader text mobile-optimized, you can raise your open rates.
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Write a program that lets the user enter the initial height from which the ball is dropped, the bounciness index, and the number of times the ball is allowed to continue bouncing. Output should be the total distance traveled by the ball.
The following is the program for total distance traveled by the ball;
What do programming skills entail?Programming, or "coding," skills are the ability to write commands in a variety of programming languages to tell a computer, application, or software program what to do and how to do it.
Write program for the distance travelled by ball.height = float(input('Enter the height from which the ball is dropped: '))
bounci_index = float(input('Enter the bounciness index of the ball: '))
bounces = int(input('Enter the number of times the ball is allowed to
continue bouncing: '))
distance = height
for i in range(bounces-1):
height *= bounci_index
distance += 2*height
distance += height*bounci_index
print('\nTotal distance traveled is: ' + str(distance) + ' units.')
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List all of the permutations of {a, b, c} no replacement and length 3
Proof
If subsets, then the answer is correct.Notice that Part 4 * Part 5 = Part 1 6 * 10 = 60
What is permutation example?An arrangement of things in a precise order is called to as a permutation. Here, the members of sets are arranged in a linear or relation to a matter. For illustrate, the set A=1,6 has a permutation of 2, which is 1,6,1. There is no other method for organizing the pieces of set A, as you can see.
1. That would be 5*4*3 = 60
Part 2 is the same as part 3,
just replace every "e" with a "c".
Part 3: correct
For enumerations, it's a good idea to be systematic in doing them,
so you don't miss any.
Alphabetical order would be good
a _ _, d _ _, e _ _
a(de, ed), d (ae, ea), e (ad, da)
ade, aed, dae, dea, ead, eda
Part 4: count the number of permutations in
part 2 or part 3: ? six.
Part 5: "subjects" ? or "subsets"
If subsets, then the answer is correct.
Notice that Part 4 * Part 5 = Part 1
6 * 10 = 60
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The complete question is -
List all the permutations of {a,b,c}. This is a permutation and repeats are not allowed Therefore, there are p(3,3)= 3!/0! = 6 permutations, which are a, b, c ; a, c, b ; b, a, c ; b, c, a ; c, a, b ; c, b, a.
Edhesive Assignment 11
In Bash, if you need a little help with how a command like ls works, which of the commands can you use to get more information
ls --help or man ls it is the commands can you use to get more information.
What is the ls command in bash?The current directory's files are listed by the ls command (ls is short for "list"). The ls command will by default just print the names of all the files and folders. Use the flag "-l" to receive the extra details and a cleaner view. The following information about each file is displayed by ls in long list format.
The 'ls' command can be used to list files and directories. If you use the "ls" command without any other options, the contents of your current working directory, which is just another way of saying the directory that your terminal is currently in, will be listed.
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Which statement describes what happens if multiple users make changes simultaneously to a presentation when coauthoring?
1. Only the primary coauthor's changes are retained to avoid conflicts.
2. A record of the initial change is kept in the case of conflicts.
3. A record is kept of all edits that are made so conflicts can be resolved.
4. It is the last change that will be retained in the case of conflicts.
Answer:
3.
Explanation:
Co-authoring in PowerPoint is sharing a presentation and allowing your colleagues to work on it at the same time. This option of co-authoring is available when you share or save your file on OneDrive or SharePoint.
The perk of co-authoring a presentation is that PowerPoint keeps a record of all edits under the name of the author. This keeps the conflicts away.
Therefore, the correct answer is option 3.
WILL MARK BRAINLIEST Question #2
Dropdown
You compared each letter in the correct word to the letter guessed.
Assume the correct word is "cloud."
Finish the code to compare the guessed letter to the "u" in "cloud."
if guess ==
correct(4)
correct(3)
5-0043.2020102 correct[3]
correct[4]
Answer:
correct[3]
Explanation:
Required
Which expression points to the u in "cloud"
First, it should be noted that "cloud" is a string and as such, the first element is represented as index 0, the next as index 1, etc.
Using the above as a guide, the u is as index 3
To access the elements of a string, we use: stringname[index]
In this case, the string name is correct.
Hence, the correct statement is: correct[3]
You are inspecting a user's system after she has complained about slow Internet speeds. After analyzing the system, you notice that the default gateway in the ARP cache is referencing an unknown MAC address. What type of attack has occurred
ARP poisoning type of attack has occurred.
What are the effects of ARP poisoning?The Man in the Middle (MitM) technique known as ARP spoofing, often referred to as ARP poisoning, enables attackers to eavesdrop on network device communication.
Which two ARP attacks fall under each category?There are two different kinds of ARP attacks.
ARP spoofing: A hacker sends phoney ARP packets that connect the attacker's MAC address to the IP of a computer already connected to the local area network.ARP poisoning: A hacker modifies the company's ARP table so that it contains forged MAC mappings after successfully faking an ARP signal. It spreads like a virus.To know more about ARP attack visit
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Nora has shared a document with others, and she needs to be able to easily identify when others are modifying the
documents and where those modifications have been made.
Which feature should Nora use?
Password Protection
OneDrive storage
Track Changes
Protected View
Answer:
C, Track Changes
Explanation:
Answer:
C. Track Changes
Explanation:
hope this helps :)
What is brawl stars app
Answer:
Brawl Stars is a multiplayer online battle arena and third-person hero shooter video game developed and published by the Finnish video game company Supercell.
Answer:
3v3 multiplayer and battle royale made for mobile! Play with friends or solo across a variety of game modes in under three minutes. Unlock and upgrade dozens of Brawlers with powerful Super abilities, Star Powers and Gadgets
A user notices a laser printer is picking up multiple sheets of paper from one of its paper trays. The problem started last week and has gotten worse. Which of the following is MOST likely the cause of this problem ?
A. Separation pad
B. Feed roller
C. Registration roller
D. Duplex assembly
One of the paper trays of a laser printer starts to fill up with numerous sheets of paper, the user observes. The problem is most likely caused by a separation pad.
What is a disadvantage of a laser printer?
Laser printers are unable to print on several types of paper, in contrast to inkjet printers. Anything that is heat-sensitive cannot be passed through them. On home laser printers, simple graphics can be created, but clear images are challenging. If you want to print pictures, get an inkjet printer.
Why would you use a laser printer?
Popular computer printers like laser printers employ non-impact photocopier technology, which avoids damaging the paper with keys. A laser beam "draws" the document on a selenium-coated surface when a document is supplied to the printer.
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The servers that are responsible for locating the DNS servers for the .org .mil etc... domains are known as
The servers that are responsible for locating the DNS servers for the .org .mil etc... domains are known as Top level domain.
What is the name of the DNS servers?A server called a domain name server is in charge of maintaining a file called a zone file, which contains details about domain names and their accompanying IP addresses. It is also in charge of replying to DNS requests with the zone file's contents. One of the most important components of the Domain Name System are domain name servers.
What tasks are handled by DNS?The Domain Name System, often known as DNS, converts human readable domain names into machine readable IP addresses. One of the most prevalent kinds of DNS records is an entry. When looking up an IP address, an A record utilises the domain name to find the IPv4 address of the machine hosting the domain name online.
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3 alternativas donde puedas utilizar la tecnologia que nos ayude a reducir el impacto ambiental al medio ambiente
Answer:
El correo, las notas y las agendas ahora están archivados en el mundo digital, ayudando a reducir la deforestación. Coches eléctricos: se está trabajando meticulosamente en reducir la contaminación que producen los vehículos, haciendo que cada vez sean más sostenibles.
Explanation:
When using for loops and two-dimensional arrays, the outside loop moves across the ___________ and the inside loop moves across the ___________.
When using for loops and two-dimensional arrays, the outside loop moves across the rows and the inside loop moves across the columns.
In a two-dimensional array, how should each loop be used?Improved for each loops or layered for loops can be used to iterate across 2D arrays. A 2D array's outer loop typically traverses the rows, whereas the inner loop often covers the columns in a single row. The length of a 2D array indicates the number of rows. length array for a row
Why do we use two for loops with two-dimensional arrays?To better understand an array's contents, think of a two-dimensional array as a matrix with rows and columns. A 2D array can be looped over by first iterating through each row, followed by iterating through each column in each row. We require two loops that are nested inside of one another because of this.
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To accomplish self-regulation, a highly complex and integrated communication control system or network is required. This type of network is called a(n)
A very intricate and comprehensive communication control system or network is needed to achieve self-regulation. A feedback control loop is the name for this kind of network.
The homeostatic control system is what?Homeostasis controls an organism's internal environment and upholds a steady state of variables like pH and temperature.
Why is it referred to as homeostasis?Homeostasis, which derives from the Greek meanings for "same" and "steady," is any method used by living creatures to actively maintain the relatively consistent conditions required for survival.
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GlobalMan Tech purchased raw material from NewBizTr Co. When the sales team at NewBizTr Co checked the system, there was no payment detail in the system, though the order-delivery details were present. Also, it seemed that someone had tampered with the details of the previous order. Which important data-management features were compromised?
The (BLANK) of data was compromised because there were corresponding payment details. The (BLANK) of data was compromised as someone had tampered with the details of the previous order.
1)
integrity
security
archiving
reusing
2)
integrity
accuracy
security
archiving
Both data security and crucial data management procedures were violated. The privacy of the information was harmed since the order's specifications were changed.
How do security keys work?A privacy key is a tool that makes it easier to access other devices, computer systems, and apps or to do tighter authentication. Security tokens are another name for secret keys. Security keys are item items that need a main device to function.
What makes IT security?Property was pledged as security for a debt or commitment of the owner in the term's original sense, which dates to the middle of the 15th century. The phrase began to refer to a document that proved a debt in the 17th century.
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Which of the following is an advantage of a signature-based detection system?
Select one:
a. each signature is assigned a number and name
b. it is based on profiles the administrator creates
c. the definition of what constitutes normal traffic changes
d. the IDPS must be trained for weeks
An advantage of a signature-based detection system is the assignment of a number and name to each signature.
Which method for spotting specific assaults makes use of an algorithm to spot abnormal traffic?An intrusion detection system (IDS) allows you to determine whether your network is under attack because it is designed to detect suspicious and malicious behavior through network traffic.
In utilizing an IPS device, which of the following best represents a false positive?A false positive is an alert that suggests malicious activity on a system but, upon closer examination, reveals to be acceptable network traffic or behavior.
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software that combines text static images ,video animation and sounds is known as?
Answer: Interactive media
Explanation:
Interactive media, also called interactive multimedia, any computer-delivered electronic system that allows the user to control, combine, and manipulate different types of media, such as text, sound, video, computer graphics, and animation.
Hope This Helps!
Which risk is most effectively mitigated by an upstream Internet service provider (ISP)?
A. Distributed denial of service (DDoS) B. Lost productivity C. Firewall configuration error
D. Unauthorized remote access
A. Distributed denial of service (DDoS). Upstream Internet service providers are best at reducing risk (ISP).
Which course of action will best safeguard the Internet of Things?Which course of action, while still fulfilling business objectives, swiftly implementing security upgrades.
What online safety precautions are most crucial?Don't share information like your mother's maiden name, birthday, or address online. Instead, secure your privacy settings.Be wary of calls for connection from strangers.your internet connection securely.Always use a password to secure your home wireless network.
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Your organization uses Windows desktop computers. You need to implement an efficient solution for deploying updates to the Windows computers. What should you deploy
When a practical method for distributing updates to Windows computers is required, use Windows Deployment Services.
In which of the following services does WSUS engage?WSUS makes use of seven services. Update Service (wsusservice.exe), Reporting Web Service, API Remoting Web Service, Client Web Service, Simple Web Authentication Web Service, Server Synchronization Service, and DSS Authentication Web Service are among them.
What security protocol will you choose to encrypt web traffic from the list below?The principal protocol for transmitting data between a web browser and a website is hypertext transfer protocol secure (HTTPS), which is HTTP. To improve data transfer security, HTTPS is encrypted.
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a rts frame is the first step of the two-way handshake before sending a data frame. true or false
It is accurate to say that sending an arts frame precedes sending a data frame in the two-way handshake.
What encryption method does the WPA2 wireless standard employ?The Advanced Encryption Standard (AES) employed by WPA2 is the same one that the US government employs to protect sensitive documents. The highest level of protection you can give your home WiFi network is this one.
What data integrity and encryption technique does WPA2 employ?The Advanced Encryption Standard (AES) encryption, combined with robust message authenticity and integrity checking, are the foundation of the WPA2 protocol, which offers substantially stronger privacy and integrity protection than WPA's RC4-based TKIP. "AES" and "AES-CCMP" are two examples of informal names.
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You answer a call from a number of users who cannot access the mail server. Which utility would you use to quickly see if the sendmail service is running?
If you want to check whether the sendmail service is active rapidly, use the ps program.
Which command shows the most specific information about each active process?Processes are active at all times that the system is active. The ps command allows you to see a list of currently active processes as well as their status and other details. You can define which processes to list using a number of flags in the ps command.
What does a process with no nice command execute as by default?The default increment of the nice command is 10, so if you do not supply an increment value, that is what happens. If you want to run a command with a higher priority, you must be a root user. A process's pleasant value, or priority, is frequently referred to.
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What do you do if fedex tracking says "unfortunately we are unable to retrieve your tracking results at this time. please try again later?"
Real-time processing virtually instantaneously processes data. There is no waiting or pause involved in this process.
How can I use a tracking number to find a package?
Once you receive your tracking number, tracking your delivery is simple. The USPS Tracking page just requires the tracking number to be entered. Along with additional tracking details, such as delivery and/or attempted delivery information, you'll receive the item's current status.
How can I find out a package's precise location?
If you have your USPS shipment tracking number, you can use Circuit to see where your package is in real time. After a few days have passed after your box was dispatched, you can get in touch with a USPS customer care agent if it is still missing.
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Explain three major concerns in database systems.
Answer:
Slow Read-Write Speeds. Performance slowdowns can occur due to high latency for disk read/writes. ...Scaling Problems. ...Incorrect Virtual Machine Setup. ...Lack of Backup and Monitoring. ...Query Performance. ...User and Query Conflicts. ...Configuration. ...Capacity.
Which of the following pairs of components constitutes the human side of information systems? A) software and procedures. B) software and people
The human component of information systems is made up of pairs of components called People and Procedures.
Which of the five parts that make up an information system is the most straightforward to alter?In terms of organizational disruption and ease of change, describe how the five components of an information system are organised. Data, software, hardware, processes, and people. The easiest things to alter are on the computer side, whereas the most difficult are on the human side. Of the following.
which is a part of an information system?Hardware, software, databases, networks, and people make up the core components of an information system. To execute input, process, output, feedback, and control, these five elements must work together.
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As part of preventing reinfection, what should you configure to prevent spoofing?
A) DNS
B) The host firewall
C) Regular backups
D) MAC filtering
Should always you do to minimize spoofing (A) DNS as part of stopping reinfection .
What function does a firewall serve?A firewall in either hardware that keeps track of all network traffic, including inbound and outbound. Hardware or software can both be referred to as a "firewall." Internal networks can be protected from external and internal threats via firewalls, which can be used to control access to them.
Is a firewall really necessary?Any online network needs a firewall as protection. Even while every computer has some basic firewall security measures in place, there are still some weaknesses that can be attacked without a sophisticated firewall barrier.
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