Following are the responses to this question:
The user account is "olivia".In the Linux system to see the account go to the "/home directory".For the configuration file we use ".bash_logout , .bash_profile, and .bashrc" files.Creating users:
We will use the useradd command to achieve this. Using that same command, you can create users who would log in or customers who would log in (in the case of creating a user for a software installation).
In its basic form, the command is as follows:
[Options] useradd usernameTake this user olivia, for instance. Assuming that you had been to issue the command prompt:
olivia has become a user.Users are added to the system without the need for a home directory and are unable to log on. It if we were using this rather than running the command without arguments?
sudo using useradd -m oliviaUsing the command above, a new user would be created, including a home directory that corresponded to the username. That means that you might now see the name "olivia" in the directory "/home".
But what about the lockout concern that was raised earlier? Both these methods are possible. After creating the user, you can enter the following command:
Password for olivia is: sudo passwd oliviaYou'll be requested to enter & verify your new password once you've completed the process. This unlocks the user profile, allowing them to log in.
This command might look like if you wanted to accomplish it in one go:
sudo useradd -m olivia -p PASSWORDYou should be using Passcodes as the login for the user olivia.
As soon as the user logs in, he or she can update their account password by using the password command to input their current password, and afterward entering/verifying their new one.
To create a user that has no personal account and cannot log in, execute the following instructions:
sudo use useradd as the-M USERNAME sudo use usermod as the -L USERNAMEThe user to be added is identified by USERNAME.
It establishes a user with really no root folder and prevents them from signing in with a second operation.
To add an existing user to a group on Linux, follow the instructions:
As root, log in to your accountUse the useradd instruction to add a new user (for example, useradd roman)If you'd like to log on as a new customer, type su plus that user's name.Entering the word "exit" will logout you from your account.Another way to add a user to a group under Linux would be to use the following syntax:
Alternatively, you can use the usermod command.The name of the club should be substituted for example group in this sentence.Example username should be replaced with the name of the user you'd like added.The following operations are performed when a new login is added to the system.
The user's home directory (/home/username by default) is now created.To set configuration files for the user's session, the following secret files are copied into another user's home directory..bash_logout
.bash_profile
.bashrc
/var/spool/mail/username includes the user's mail spool.The new user account is arranged in groups with the same name.Learn more:
Linux system: brainly.com/question/13843535
_________ are standard devices, such as switches and routers, that have small onboard computers to monitor traffic flows through the device as well as the status of the device and other devices connected to it
Answer:
Managed devices
Explanation:
hope it helps u
What Causes #### error?
Answer:
The answer is below
Explanation:
Causes of ####error in Microsoft Excel can be traced to multiple sources. The major causes of #### error in Microsoft Excel, however, are the following:
1. When the column is not wide enough to show all values or figures of the cell contents.
2. When there are too many decimal places of the figure in a cell
3. When the date value in the cell is negative
4. When the time value in the cell is negative.
Pick a web browser (a leading one or perhaps a lesser-known one that you use) and examine the Privacy and Security features and settings. These can usually be found in the settings/options area of the browser. Identify the web browser you are analyzing and answer the following questions/prompts:
1. List and explain/discuss the privacy and security features that the browser has to offer.
2. How do these privacy and security features protect individuals?
3. How do these privacy and security features affect what businesses can do on the Internet in terms of gathering customer data?
Solution :
Chrome web browser
The Chrome web browser uses a range of privacy and security settings for its customers. They include several security indicators as well as malware protection. Chrome uses the sandboxing technology, which prevents the harmful viruses and Trojans from reaching the computers.
Chrome provides a safe browsing by giving us an alert whenever we try to browse some harmful web sites. It also warns you if we use a username and password combination which has been compromised in any data leak.
Chrome also serves to protect the individuals :
It provides a features of Ad blocking.
When we want to browse safely without being recognized or without storing any credentials, Chrome provides an Incognito mode.
Many businesses can be done on the internet using Chrome platform that is safe and authenticate to gather and collect data and information.
g A catch block that expects an integer argument will catch Group of answer choices all exceptions all integer exceptions any exception value that can be coerced into an integer C
Answer:
Hence the correct option is 2nd option. all integer exceptions.
Explanation:
A catch block that expects an integer argument will catch all integer exceptions.
Write a program that produces the following output:CCCCCCCCC CC CC CC CC CCCCCCCCC Note: The letter C in the output must be uppercas
Answer:
CCCCCCCCC ++ ++ CC ++ ++ CC ++++++++++++++ +++++++++++++++ CC ++++++++++++++ +++++++++++++++ CC ++ ++ CCCCCCCCC ++ ++
Note: The letter C in the output must be uppercase.
#include <iostream>
using namespace std;
int main()
{
cout<<"CCCCCCCCC ++ ++ CC ++ ++ CC ++++++++++++++ +++++++++++++++ CC +++++++++++++\n";
cout<<"+++++++++++++++ CC ++ ++ CCCCCCCCC ++ ++";
return 0;
}
Which of the following is not a data visualization technique?
Answer:
Normalization
Explanation:
From the options given :
Boxplot is a data visualization techniqye used for representing numerical data in the form of a box such that it adequately conveys the five number summary if the dataset which are the minimum, maximum, lower quartile, median and upper quartile, it also depicts the presence of outlines.
Scatter plot are used depict the relationship between two variables on the x and y axis of a graph. Each point is a representation of the (x, y) value pairs of the observation.
Tag clouds are usually used to represent word, metatdata and other free form text using different colors and font sizes to give information about the data.
Normalization is the odd option out as it is used to restructure data in other to promote integrity of data.
We canconnect two or more computer together using cables true or false
This is true for most modern computers
Write a program that repeatedly accepts as input a string of ACGT triples and produces a list of the triples and the corresponding amino acids, one set per line. The program will continue to accept input until the user just presses ENTER without entering any DNA codes.
Answer:
Explanation:
The following code is written in Python. I created a dictionary with all the possible gene combinations and their corresponding amino acids. The user then enters a string. The string is split into triples and checked against the dictionary. If a value exists the gene and amino acid is printed, otherwise an "Invalid Sequence" error is printed for that triple. The program has been tested and the output can be seen in the attached image below.
def printAminoAcids():
data = {
'TTT': 'Phe', 'TCT': 'Ser', 'TGT': 'Cys', 'TAT': 'Tyr',
'TTC': 'Phe', 'TCC': 'Ser', 'TGC': 'Cys', 'TAC': 'Tyr',
'TTG': 'Leu', 'TCG': 'Ser', 'TGG': 'Trp', 'TAG': '***',
'TTA': 'Leu', 'TCA': 'Ser', 'TGA': '***', 'TAA': '***',
'CTT': 'Leu', 'CCT': 'Pro', 'CGT': 'Arg', 'CAT': 'His',
'CTC': 'Leu', 'CCC': 'Pro', 'CGC': 'Arg', 'CAC': 'His',
'CTG': 'Leu', 'CCG': 'Pro', 'CGG': 'Arg', 'CAG': 'Gln',
'CTA': 'Leu', 'CCA': 'Pro', 'CGA': 'Arg', 'CAA': 'Gln',
'GTT': 'Val', 'GCT': 'Ala', 'GGT': 'Gly', 'GAT': 'Asp',
'GTC': 'Val', 'GCC': 'Ala', 'GGC': 'Gly', 'GAC': 'Asp',
'GTG': 'Val', 'GCG': 'Ala', 'GGG': 'Gly', 'GAG': 'Glu',
'GTA': 'Val', 'GCA': 'Ala', 'GGA': 'Gly', 'GAA': 'Glu',
'ATT': 'Ile', 'ACT': 'Thr', 'AGT': 'Ser', 'AAT': 'Asn',
'ATC': 'Ile', 'ACC': 'Thr', 'AGC': 'Ser', 'AAC': 'Asn',
'ATG': 'Met', 'ACG': 'Thr', 'AGG': 'Arg', 'AAG': 'Lys',
'ATA': 'Ile', 'ACA': 'Thr', 'AGA': 'Arg', 'AAA': 'Lys'
}
string = input("Enter Sequence or just click Enter to quit: ")
sequence_list = []
count = 0
gene = ""
for x in range(len(string)):
if count < 3:
gene += string[x]
count += 1
else:
sequence_list.append(gene)
gene = ""
gene += string[x]
count = 1
sequence_list.append(gene)
for gene in sequence_list:
if gene.upper() in data:
print(str(gene.upper()) + ": " + str(data[gene.upper()]))
else:
print(str(gene.upper()) + ": invalid sequence")
printAminoAcids()
Based on the screenshot below which letter do you select to sort the items in an alphabetical order?
Answer:
the smallest number start with the first number of the alphabet
10. Question
What are the drawbacks of purchasing something online? Check all that apply.
Explanation:
1) the quality of purchased good may be low
2) there might me fraud and cheaters
3) it might be risky
4) we may not get our orders on time
There are many drawbacks of purchasing online, some of them are as follows,
Chance of pirated item in place of genuine product.Chances of fraud during digital purchase and transaction.Product not deliver on time as expected.Not getting chance to feel the product before purchase.These are some of the drawbacks of purchasing something online.
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Book information (overriding member functions) Given main() and a base Book class, define a derived class called Encyclopedia. Within the derived Encyclopedia class, define a PrintInfo() function that overrides the Book class' PrintInfo() function by printing not only the title, author, publisher, and publication date, but also the edition and number of volumes. Ex. If the input is: The Hobbit J. R. R. Tolkien George Allen & Unwin 21 September 1937 The Illustrated Encyclopedia of the Universe James W. Guthrie Watson-Guptill 2001 2nd 1 the output is: Book Information: Book Title: The Hobbit Author: J. R. R. Tolkien Publisher: George Allen & Unwin Publication Date: 21 September 1937 Book Information: Book Title: The Illustrated Encyclopedia of the Universe the output is: Book Information: Book Title: The Hobbit Author: J. R. R. Tolkien Publisher: George Allen & Unwin Publication Date: 21 September 1937 Book Information: Book Title: The Illustrated Encyclopedia of the Universe Author: James W. Guthrie Publisher: Watson-Guptill Publication Date: 2001 Edition: 2nd Number of Volumes: 1 Note: Indentations use 3 spaces. LAB ACTIVITY 11.14.1: LAB: Book information (overriding member functions) File is marked as read only Current file: main.cpp cin >> numVolumes; main.cpp Book.h 25 26 27 28 29 30 31 32 33 34 35 36 myBook. SetTitle(title); myBook. SetAuthor(author); myBook. SetPublisher(publisher); myBook.SetPublicationDate(publicationDate); myBook.PrintInfo(); Book.cpp Encyclopedia.h myEncyclopedia. SetTitle(eTitle); myEncyclopedia. SetAuthor(eAuthor); myEncyclopedia. SetPublisher(ePublisher); myEncyclopedia. SetPublicationDate(ePublicationDate); Encyclopedia.cpp
Answer:
hansnmakqkai8aiaiakqklqlqlqlqlqqqw
What unit of measurement is used for DIMM read and write times?
Answer:
Nanosecond
Explanation:
Nanosecond is used for measuring DIMM read and write times.
cho dãy số a[] có n phần tử và dãy số b[]cõ m phần tử là các các số nguyên dương nhỏ hơn 1000 . Gọi tập hợp A là tập các số khác nhau trong a[], tập hợp B là các số khác nhau trong b[]
Answer:
please translate
Thank you✌️
a) Importance of Software Engineering I
Answer:
os, operating system is very important
Which of the given assertion methods will return true for the code given below? Student student1 = new Student(); Student student2 = new Student(); Student student3 = student1;
The Student class is as follows.
public class Student{
private String name;
}
a. assertEquals(student1, student2);
b. assertEquals(student1, student3);
c. assertSame(student 1, student3);
d. assertSame(student1, student2);
Answer:
The true statements are :
A. assertEquals(student1,student2)
C. assertSame(student1,student3)
Explanation:
AssertEquals() asserts that the objects are equal, but assertSame() asserts that the passed two objects refer to the same object or not, if found same they return true, else return false.
Methods are collections of named code segments that are executed when evoked
The assertion method that will return true for the given code is: assertEquals(student1,student2)
The code segment is given as:
Student student1 = new Student();
Student student2 = new Student();
Student student3 = student1;
In Java, the assertEquals() method returns true if two objects have equal values.
Assume student1 and student2 have equal values, the statement assertEquals(student1,student2) will return true
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Write a C program that will load entries from a file containing details of books and prints them.
Program Requirements:
a. Load file containing details of books
b. Print out all the books Required approach:
1. Design a struct/class that can hold the details of an individual book.
2. Dynamically allocate an array of these objects. The size should be the number of book entries from the input file given by the user.
3. Load all of the book entries into this array of objects before printing
Answer:
........
Explanation:
Which Windows installation method requires that you manually rename computers after the installation?
Answer:
Command line
Explanation:
After installation of the machine one needs to manually rename the computer. This can be done through the start then settings, then system, and select rename the PC in the right-hand side column.Irene llegó tarde al colegio_______________
ayúdenme
^_^^_^^_^^_^^_^^_^^_^^_^^_^
Answer:
Explanation:
Absconding
What can be used to store data, plant viruses, or steal data?
Answer:
ITS A SIMPLE ANSWER BUT THE PROBLEM IS TOO BIG!
Explanation:
The phishing email might contain a link which on clicking will take you to a fake web page. For example, the link might take you to a fake bank website which looks very legitimate but in reality is just a lookalike. If the victim falls for the scam and enters his/her account details on the website, the details will actually go to the hacker's server instead of going to the bank and the hacker will have all the information that the victim has provided on the website.
WHAT IS ONE WAY A PIVOTTABLE COULD COMBINE THE FOLLOWING DATA
Answer: You sort table data with commands that are displayed when you click a header arrow button. Hope it help's :D
1011 0110 10102 = ?16
Answer:
B6A
Explanation:
I think you want to convert binary to hex.
Hexadecimal or "hex" is a numbering system which uses 16 different numerals. We saw that decimal used ten numerals from 0 to 9. Hex expands on this by adding six more, the capital letters A, B, C, D, E and F.
0...1...2...3...4...5...6...7...8...9...A...B...C...D...E...F
Steps to Convert Binary to Hex
1. Start from the least significant bit (LSB) at the right of the binary number and divide it up into groups of 4 digits. (4 digital bits is called a "nibble").
2.Convert each group of 4 binary digits to its equivalent
hex value .
3.Concatenate the results together, giving the total hex number.
Chassis intrusion detection is an option that can be enabled/disabled in the BIOS setup utility (if a BIOS comes equipped with this feature).Coupled with a hardware sensor mounted insided the computer case, this functionality can be used to check if the case was opened and display a notification alert during next boot.
a. True
b. False
Answer: True
Explanation:
Chassis intrusion detection is simply a vital security feature which is used typically by large corporate networks. It's simply an intrusion detection method which can be used in alerting a system administrator when there's a situation whereby a person opens a computer case which can then be investigated in order to know if the computer hardware has been tampered with.
It should also be noted that the chassis intrusion detection can then be either enabled or disabled in the BIOS setup utility if a BIOS comes equipped with this feature.
The correct option is True.
Develop a program that will maintain an ordered linked list of positive whole numbers. Your program will provide for the following options: a. Add a number b. Delete a number c. Search for a number d. Display the whole list of numbers At all times, the program will keep the list ordered (the smallest number first and the largest number last).
Answer:
#include <iostream>
using namespace std;
struct entry
{
int number;
entry* next;
};
void orderedInsert(entry** head_ref,entry* new_node);
void init_node(entry *head,int n)
{
head->number = n;
head->next =NULL;
}
void insert(struct entry **head, int n)
{
entry *nNode = new entry;
nNode->number = n;
nNode->next = *head;
*head = nNode;
}
entry *searchNode(entry *head, int n)
{
entry *curr = head;
while(curr)
{
if(curr->number == n)
return curr;
curr = curr->next;
}
}
bool delNode(entry **head, entry *ptrDel)
{
entry *curr = *head;
if(ptrDel == *head)
{
*head = curr->next;
delete ptrDel;
return true;
}
while(curr)
{
if(curr->next == ptrDel)
{
curr->next = ptrDel->next;
delete ptrDel;
return true;
}
curr = curr->next;
}
return false;
}
void display(struct entry *head)
{
entry *list = head;
while(list!=NULL)
{
cout << list->number << " ";
list = list->next;
}
cout << endl;
cout << endl;
}
//Define the function to sort the list.
void insertionSort(struct entry **h_ref)
{
// Initialize the list
struct entry *ordered = NULL;
// Insert node to sorted list.
struct entry *current = *h_ref;
while (current != NULL)
{
struct entry *next = current->next;
// insert current in the ordered list
orderedInsert(&ordered, current);
// Update current
current = next;
}
// Update the list.
*h_ref = ordered;
}
//Define the function to insert and traverse the ordered list
void orderedInsert(struct entry** h_ref, struct entry* n_node)
{
struct entry* current;
/* Check for the head end */
if (*h_ref == NULL || (*h_ref)->number >= n_node->number)
{
n_node->next = *h_ref;
*h_ref = n_node;
}
else
{
//search the node before insertion
current = *h_ref;
while (current->next!=NULL &&
current->next->number < n_node->number)
{
current = current->next;
}
//Adjust the next node.
n_node->next = current->next;
current->next = n_node;
}
}
int main()
{
//Define the structure and variables.
char ch;int i=0;
entry *newHead;
entry *head = new entry;
entry *ptr;
entry *ptrDelete;
//Use do while loop to countinue in program.
do
{
//Define the variables
int n;
int s;
int item;
char choice;
//Accept the user choice
cout<<"Enter your choice:"<<endl;
cout<<"a. Add a number"<<endl
<<"b. Delete a number"<<endl
<<"c. Search for a number"<<endl
<<"d. Display the whole list of numbers"<<endl;
cin>>choice;
//Check the choice.
switch(choice)
{
//Insert an item in the list.
case 'a' :
// cin>>item;
cout<<"Enter the element:"<<endl;
cin>>item;
//To insert the first element
if(i==0)
init_node(head,item);
//To insert remaining element.
else
{
ptr = searchNode(head,item);
//Check for Duplicate data item.
if(ptr==NULL)
{
insert(&head,item);
}
else
{
cout<<"Duplicate data items not allowed";
cout<<endl<<"EnterAgain"<<endl;
cin>>item;
insert(&head,item);
}
}
insertionSort(&head);
i=i+1;
break;
//Delete the item from the list
case 'b' :
int numDel;
cout<<"Enter the number to be deleted :"<<endl;
cin>>numDel;
//Locate the node.
ptrDelete = searchNode(head,numDel);
if(ptrDelete==NULL)
cout<<"Element not found";
else
{
if(delNode(&head,ptrDelete))
cout << "Node "<< numDel << " deleted!\n";
}
break;
//Serach the item in the list.
case 'c' :
cout<<"Enter the element to be searched :";
cout<<endl;
cin>>s;
ptr = searchNode(head,s);
if(ptr==NULL)
cout<<"Element not found";
else
cout<<"Element found";
break;
//Display the list.
case 'd' :
display(head);
break;
default :
cout << "Invalid choice" << endl;
break;
}
//Ask user to run the program again
cout<<endl<<"Enter y to countinue: ";
cin>>ch;
}while(ch=='y'||ch=='Y');
return 0;
}
output:
The program is the set of instructions a computer obeys
Answer:
True
Explanation:
a program is basicly just a list of commands you can run over and over again.
Convert the following denary numbers into
binary (using both methods):
a 41
b 67
C 86
d 100
e 111
f 127
g 144
h 189
i 200
j 255
Answer:
101001
1000011
1010110
1100100
1101111
1111111
10010000
10111101
11001000
11111111
create a function that has an argument is the triple jump distance. It returns the estimate of vertical jump height. The world record for the triple jump distance is 18.29 meters by Johnathan Edwards. What's our prediction for what Edwards' vertical jump would be
Answer:
function predicting vertical
def predict_vertical(triple):
# using least squares model parameters
ls_vertical = ls_slope*triple + ls_intercept
return ls_vertical
# Johnathan Edwards prediction
triple = 18.29 # m
vertical = predict_vertical(triple)
print("Edward's vertical jump prediction would be {:.2f} meters.".format(vertical))
plt.legend(['linear regression','least squares','data'])
plt.grid()
plt.show()
Explanation:
what is IBM 1401 used for? Write your opinion.
Explanation:
The 1401 was a “stored program computer,” allowing programmers to write (and share) applications loaded into the machine from punched cards or magnetic tape, all without the need to physically reconfigure the machine for each task.
Select the correct statement(s) regarding IP addressing.
a. IPv4 and IPv6 addressing is fully compatible with one another.
b. CIDR address format represents a Class C network only used within an intranet.
c. Subnet masks are used with both class and classless IP addresses.
d. all statements are correct.
Subnet masks are used with both class and classless IP addresses is the correct statement. Therefore, the correct option is C.
What is an IP address?A device on the internet or a local network may be identified by its IP address, which is a special address. The rules defining the format of data delivered over the internet or a local network are known as “Internet Protocol,” or IP.
Only C is correct, rest other statements are incorrect because:
a. IPv4 and IPv6 addressing is fully compatible with one another is incorrect. While IPv4 and IPv6 can coexist on the same network, they are not fully compatible with one another.
b. CIDR address format represents a Class C network only used within an intranet is incorrect. Classless Inter-Domain Routing (CIDR) is a technique used to allocate IP addresses more efficiently.
Therefore, subnet masks are used with both class and classless IP addresses is the correct statement. Therefore, the correct option is C.
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Select the pseudo-code that corresponds to the following assembly code. Assume that the variables a, b, c, and d are initialized elsewhere in the program. You may want to review the usage of EAX, AH, and AL (IA32 registers). Also recall that the inequality a > b is equivalent to b < a. i.e. If A is greater than B, that's equivalent to saying that B is less than A.
.data
; General purpose variables
a DWORD ?
b DWORD ?
c BYTE ?
d BYTE ?
upperLevel DWORD 18
lowerLevel DWORD 3
; Strings
yes BYTE "Yes",0
no BYTE "No",0
maybe BYTE "Maybe",0
code
main PROC
mov eax, 1
cmp AH, c
jg option1
jmp option3
option1:
mov edx, OFFSET yes
call WriteString
jmp endOfProgram
option2:
mov edx, OFFSET no
call WriteString
jmp endOfProgram
option3:
mov edx, OFFSET maybe
call WriteString
endOfProgram:
exit
main ENDP
END main
a) if (c > 0)
print (yes);
else
print (maybe);
b) if (c < 0)
print (yes);
else
print (maybe);
c) if (c < 1)
print (yes);
else
print (maybe);
d) if (c > 1)
print (yes);
else
print (maybe);
Answer:
ae
Explanation:
The pseudo-code that corresponds to the given assembly code is:
b) if (c < 0)
print (yes);
else
print (maybe);
What is the pseudo-codeIn assembly code, the command cmp AH, c checks if the high byte of the EAX register (AH) has the same value as the variable c. Then, if the value in AH is more than the value in c, the instruction jg option1 will move to option1.
Therefore, In the pseudo-code, one can check if c is smaller than 0. If it happens, we say "yes". If not, we say "maybe"
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Write a function named square_list that takes as a parameter a list of numbers and replaces each value with the square of that value. It should not return anything - it should mutate the original list.
Answer:
The function is as follows:
def square_list(myList):
for i in range(len(myList)):
myList[i] = myList[i]**2
print(myList)
Explanation:
This defines the function
def square_list(myList):
This iterates through the list elements
for i in range(len(myList)):
This squares each list element
myList[i] = myList[i]**2
This prints the mutated list
print(myList)