Answer:
An operating system has three main functions: (1) manage the computer's resources, such as the central processing unit, memory, disk drives, and printers, (2) establish a user interface, and (3) execute and provide services for applications software.
Create a directory called projects directly inside /home/fparker. Change the owner of /home/fparker/projects to the fparker user and change the group to the fparker group. Create a user account named ljenkins and set password123 as the password. Format the third drive's only partition with the ext4 file system.
To perform the tasks you described, you would need administrative privileges or use the appropriate commands with 'sudo'.
What is directory?A directory, also known as a folder, is a file system construct used to organize and store files and other directories. It acts as a container for grouping related files and subdirectories together in a hierarchical manner. Directories are an essential part of the file system structure in modern operating systems.
Here are the steps to achieve each task:
1. Create a directory called "projects" directly inside /home/fparker:
mkdir /home/fparker/projects
2. Change the owner and group of /home/fparker/projects to the fparker user and group:
chown fparker:fparker /home/fparker/projects
3. Create a user account named ljenkins and set "password123" as the password:
useradd ljenkins # Create the user account
passwd ljenkins password123 # Set the password for the user
After successfully completing these steps, you will have created the "projects" directory inside /home/fparker, changed its owner and group to fparker, created a new user account named ljenkins with the password "password123," and formatted the third drive's partition with the ext4 file system.
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Add a media query that applies when the viewport's width is at least 600px. Use the .benefits-container selector to set flex-direction: row;
The media query that applies when the viewport's width is at least 600px will be:
media only screen and (min-width: 600px) {
.benefits-container {
flex-direction: row;
}
What are media queries?Media queries are the key part of responsive web design that allows the user to create different layouts depending on the size of the viewport.
They can also be used to detect other things about the environment your site is running on.
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Kevin would like to ensure that his software runs on a platform that is able to expand and contract as needs change. Which one of the following terms best describes his goal
A terminology which best describe Kevin's goal in terms of expansion and contraction as needs change is: A. Scalability.
What is scalability?Scalability can be defined as a measure of the ability of a system to change (expansion or contraction) in performance and cost as a result of changes in demands of application and system processing, especially in a network architecture.
In this context, we can logically deduce that a terminology which best describe Kevin's goal in terms of expansion and contraction as needs change is scalability.
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Complete Question:
Kevin would like to ensure that his software runs on a platform that is able to expand and contract as needs change. Which one of the following terms best describes his goal? A. Scalability B. Elasticity C. Cost effectiveness D. Agility
LAB: Word frequencies - methods Define a method named getWordFrequency that takes an array of strings, the size of the array, and a search word as parameters. Method getWordFrequency then returns the number of occurrences of the search word in the array parameter (case insensitive). Then, write a main program that reads a list of words into an array, calls method getWordFrequency repeatedly, and outputs the words in the arrays with their frequencies. The input begins with an integer indicating the number of words that follow. Assume that the list will always contain less than 20 words. Ex: If the input is: 5 hey Hi Mark hi mark the output is: hey 1 Hi 2 Mark 2 hi 2 mark 2 Hint: Use the equalsignoreCase() method for comparing strings, ignoring case. The program must define and call a method: public static int getWordFrequency(String[] wordsList, int listSize, String currWord) LAB ACTIVITY 8.45.1: LAB: Word frequencies - methods 0 / 10 LabProgram.java Load default template... Слд 1 import java.util.Scanner; 2 3 public class LabProgram { 4 5 /* Define your method here */ 6 7 public static void main(String[] args) { 8 /* Type your code here. */ 9 } 10 } 11 NO
Using the knowledge in computational language in JAVA it is possible to write the code being methods define a method named getWordFrequency that takes an array of strings
Writting the code in JAVA:
import java.util.*;
public class WordFrequency {
public static int getWordFrequency(String[] wordsList , int listSize , String currWord) {
HashMap<String , Integer> hm = new HashMap<>();
for(String st : wordsList) {
String str = st.toLowerCase();
hm.put(str, hm.getOrDefault(str, 0) + 1);
}
for(String st : wordsList) {
String str = st.toLowerCase();
System.out.println(st + " " + hm.get(str));
}
String currWordToLowerCase = currWord.toLowerCase();
return hm.get(currWordToLowerCase);
}
public static void main(String[] args) {
// TODO Auto-generated method stub
String[] wordsList = {"hey" , "Hi" , "Mark" , "hi" , "mark"};
int listSize = wordsList.length;
String currWord = "hey";
System.out.println("The frequency of " + currWord + " is : " + getWordFrequency(wordsList , listSize , currWord));
}
}
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LAB: Word frequencies - methods Define a method named getWordFrequency that takes an array of strings, the size of the array, and a search word as parameters. Method getWordFrequency() then returns the number of occurrences of the search word in the array parameter (case insensitive). Then, write a main program that reads a list of words into an array, calls method getWordFrequency() repeatedly, and outputs the words in the arrays with their frequencies. The input begins with an integer indicating the number of words that follow. Assume that the list will always contain less than 20 words.
Ex: If the input is: 5 hey Hi Mark hi mark the output is: hey 1 Hi 2 Mark 2 hi 2 mark 2 Hint: Use the equalslgnoreCase() method for comparing strings, ignoring case. Hint: Use the equalslgnoreCase() method for comparing strings, ignoring case. The program must define and call a method: public static int getWordFrequency(String[] wordsList, int listSize, String currWord).
The program is an illustration of loops, functions and conditional statements
Loops are used for repetitionFunctions are used to group related code statements in a blockConditional statements are used to make decisionsThe program in JavaThe program written in Java, is as follows:
import java.util.Scanner;
public class Main {
public static int getFrequencyOfWord(String[] wordsList, int listSize, String currWord) {
int wordFreq = 0;
for (int i=0; i<listSize; i++){
if (wordsList[i].compareToIgnoreCase(currWord)==0){
wordFreq++;
}
}
return wordFreq;
}
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
int N = input.nextInt();
String myArr[] = new String[N];
for (int i=0; i<N; i++){
myArr[i] = input.next();
}
for (int i=0; i<N; i++){
String searchWord = myArr[i];
int freqCount = getFrequencyOfWord(myArr,N,searchWord);
System.out.println(searchWord + " " + freqCount);
}
}
}
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Discuss how progressive deepening uses a mixture of dfs and bfs to eliminate the disadvantages of both and at the same time finds the solution is a given tree. support your answer with examples of a few trees.
IDDFS is known to use both depth-first search’s space-efficiency and also the use of breadth-first search’s fast search due to the fact that its nodes are closer to the root and IDDFS often calls DFS for a lot of depths starting from a starting value.
What is progressive deepening?The term progressive deepening is known to be if a person is said to be making effort try to approximate a given answer at every level and they often work to go deep towards the leaf nodes based on the time limit that a person have for their move.
Hence, IDDFS is known to use both depth-first search’s space-efficiency and also the use of breadth-first search’s fast search due to the fact that its nodes are closer to the root and IDDFS often calls DFS for a lot of depths starting from a starting value.
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Password complexity, password history, and password reuse are all examples of what?
Password complexity, password history, and password reuse are all examples of account policies.
What are Account policies?This refers to the document which contains the requirements necessary for maintaining or creating an account on computer systems or networks.
These policies vary from password complexity to avoid accounts being compromised to password history so as to be able to recover passwords on the system. This is achieved by the use of unique letters and numbers which are difficult to access by a third party thereby making it the most appropriate choice.
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What guidelines should you follow prior to ordering and installing memory in an hp business pc or notebook?
In computer, the guidelines that should be followed prior to ordering and installing memory in an hp business pc or notebook is to verify that the network cable is plugged in.
What is computer?It should be noted that a computer simply means the electronic device that can be used to make one's work easier.
In this case, in computer, the guidelines that should be followed prior to ordering and installing memory in an hp business pc or notebook is to verify that the network cable is plugged in. This is important to allow for easy installation.
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Header file guards are preprocessor directives whose primary role is to cause the compiler to _____
Header file guards are preprocessor directives with the primary role to cause the compiler to allow defining a function that are usable throughout a user's program.
What is a header file?A header file can be defined as a type of file which comprises macro definitions and C declarations and they are meant to be shared between several source files.
In Computer programming, header file guards are preprocessor directives with the primary role to cause the compiler to allow defining a function that are usable throughout a user's program.
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All of the following formats may contain incorrect or misleading information. on which should you be most careful about trusting the information you come across as it may seem academically reviewed but in fact is not?
Wikis is the one on which should you be most careful about trusting the information you come across as it may seem academically reviewed but in fact is not.
What is Wikis?A wiki is known to be a form of a collaborative tool that is used and one that aids students to make their own contribution and change one or more pages of course linked materials.
Note that based on the above, Wikis is the one on which should you be most careful about trusting the information you come across as it may seem academically reviewed but in fact is not.
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Jenny wants to create a network that can be accessed from any room in her house without physically connecting. Which type of network medium should she use?
The type of network medium Jenny should use is wireless networks.
Given data:
Jenny should use a wireless network medium to create a network that can be accessed from any room in her house without physically connecting.
Wireless networks use radio waves or infrared signals to transmit data between devices, allowing for flexible connectivity without the need for physical cables.
Devices such as smartphones, laptops, tablets, and smart home devices can connect to the wireless network and access the internet or communicate with each other.
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A router is connected to network 192.168.1.0/24 and network 192.168.2.0/24. The router is configured to use RIP and has learned both networks. The next hop router for network 192.168.3.0 has changed. You need to make the change with the least amount of effort possible. What should you do
In the case above, the thing that should be done is for one to Drop the packet.
What is a router?A router is known to be a form of a physical or virtual tools that often helps one to pass information and it is said to be between two or more packet-switched computer networks.
Note that, In the case above, the thing that should be done is for one to Drop the packet.
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NEED HELP ASAP
If you had two proxy servers located in the same room, what use could you make of them?
nothing
create a hub
sell one of the servers
set up a network neutral zone
If you had two proxy servers located in the same room, what use could you make of them? B. Create a hub
What is a Proxy Server?A proxy server is a server program used in computer networking that stands between a client requesting a resource and the server supplying that resource.
Every computer or Ethernet-based device linked to a network hub receives data that is broadcast to all of those devices and that's what two proxy servers would be used to do.
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In the context of customer relationship management (CRM) applications, which approach is often chosen by organizations with an established IT infrastructure
The on-premise approach is often chosen by organizations with an established IT infrastructure.
What is the On Premises?In an on-premises method, resources are said to be given or deployed in-house and it is one that is found within an enterprise's IT infrastructure.
Customer relationship management (CRM) is known to be a form of a technology that is often used in the act of managing all of a firm's relationships and communications with customers and also that of potential customers.
Therefore, The on-premise approach is often chosen by organizations with an established IT infrastructure.
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how to print in this on python
#
# #
# # #
# # # #
# # # # #
Answer:
triangular ##&((+ hhvbh. hhhb hhv
Answer:
for i in range(1, 6):
print(("# " * i).rstrip())
Explanation:
You need to print one hashtag, then 2, then 3, and so on. We can use Python's string multiplication to get each line quicker.
String multiplication is an easy way to repeat the same string a certain number of times. It's done by multiplying the string to a number.
For example,
"hello" * 6
>> "hellohellohellohellohellohello"
If we multiply the string "#" by any number, we would get a number of hashtags side by side, without any space. To easily avoid this, we can multiply "# " instead to automatically put a space to the right of each hashtag.
We can use a for loop that goes through range(1, 6) to print out 5 rows.
for i in range(1, 6):
Then, we can print the string "# " multiplied by i.
print("# " * i)
However, this will also put a space at the end of the string, which we do not want to print. Hence, we can use the .rstrip() method to strip the string of any spaces on the right. We will first put the whole string in parentheses, then invoke rstrip on it.
print(("# " * i).rstrip())
Let's put both lines together.
for i in range(1, 6):
print(("# " * i).rstrip())
You are working for a large financial institution and preparing for disaster recovery and upcoming DR drills. A key component in the DR plan will be the MySQL database instances and their data. The Recovery Time Objective (RTO) is such that read replicas can be used to offload read traffic from the master database. Which items are key features of read replicas
The items that are key features of reading replicas are
inside AZ, across AZ, or even beyond the area - may establish RRAn individual database server instance was manually elevated to stand-alone statusEach RR with its own DNS destination may have up to five RRs per master.This is further explained below.
What is the DR plan?Generally, A disaster recovery plan, often known as a DRP, is a well-documented and organized strategy that outlines how an organization may swiftly go back to work in the aftermath of an unexpected event.
In conclusion, A disaster recovery plan, also known as a DR plan, is a formal document that is drafted by an organization and provides step-by-step instructions on how to react to unanticipated occurrences such as natural disasters, power outages, cyber-attacks, and any other kind of event that is disruptive.
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Completar Fill in the blanks with the correct familiar commands. dar (negative) 1 of 1 Question 2 with 1 blank hacer (affirmative) 1 of 1 Question 3 with 1 blank ir (negative) 1 of 1 Question 4 with 1 blank poner (affirmative) 1 of 1 Question 5 with 1 blank hacer (negative) 1 of 1
The affirmative tú command hacer is known as haz.
The affirmative tú command decir - diThe affirmative tú command ir - veThe affirmative tú command poner -ponWhat is the translation about?The translation are:
The affirmative tú command to do is known as do.The affirmative tú command to say - diThe affirmative tú command ir - veThe affirmative tú command to put -ponThe Affirmative tú commands is known to be one that is said to be similar as the él/ella/Ud.
Note that this is seen as the conjugation of the present tense and it is one that is often used to tell another person that you are familiar with that thing.
Hence, The affirmative tú command hacer is known as haz.
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Theorem: for any two real numbers, x and y, if x and y are both rational then x y is also rational. Which facts are assumed and which facts are proven in a proof by contrapositive of the theorem?
The facts that are assumed and the facts that are proven in a direct proof of the theorem is that option a) Assumed: x is rational and y is rational and Proven: x + y is rational.
What is a theorem?The term known as theorem is known to be a kind of a formula, or statement that is seen in a lot of mathematics field and it also known top be the logic deduced.
Note that it is also seen as the result that is said to have been proved to be true (through the use of operations and facts that are said to be already known).
Therefore, The facts that are assumed and the facts that are proven in a direct proof of the theorem is that option a) Assumed: x is rational and y is rational and Proven: x + y is rational.
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Theorem: For any two real numbers, x and y, if x and y are both rational then x + y is also rational. Which facts are assumed and which facts are proven in a direct proof of the theorem?
a) Assumed: x is rational and y is rational
Proven: x + y is rational
b) Assumed: x + y is irrational
Proven: x is irrational and y is irrational
c) Assumed: x + y is rational
Proven: x is rational or y is rational
d) Assumed: x is rational or y is rational
Proven: x + y is rational
What technique is most commonly associated with the use of malicious flash drives by penetration testers
Answer: Distributing malicious flash drives in a parking lot or other high-traffic area, often with a label that will tempt the person who finds it into plugging it in, is a technique used by penetration testers.
Explanation:
which of the following is required to establish a new network switch and configure its IP address for the first time
Out-of-band management is required to establish a new network switch and configure its IP address for the first time.
What is Out-of-Band management?Out-of-Band management is known to be a form of services that makes sure that a tech do not require to be sent onsite and it is one where remediation can be done in a remote place.
Hence, Out-of-band management is required to establish a new network switch and configure its IP address for the first time.
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Which of the following is required to establish a new network switch and configure its IP address for the first time?
A. Client-to-site VPN
B. Site-to-site VPN
C. Out-of-band management
D. In-band management
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Paul has opened a bespoke tailoring shop. He wants to work online to keep a database of all his customers, send e-mails when garments are ready, create designs, and maintain financial records using software. Which productivity suite should he consider?.
In the case above, the productivity suite that Paul should consider is OpenOffice, G suite.
What is G Suite used for?G Suite Basic edition is known to be a kind of a suite that is made up of collaborative productivity apps that tends to give one's business professional email, shared calendars, and others.
Hence, In the case above, the productivity suite that Paul should consider is OpenOffice, G suite.
See options below
Which productivity suites should he consider?
a. Prezi, G suite
b. G suite, Zoho
c. OpenOffice, G suite
d. Zoho, Apple iWork
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________ software modules deal with setting employee objectives, performance, and compensation. scm prm drm erm sfa
ERM software modules deal with setting employee objectives, performance, and compensation. option D is the answer.
What are software modules?Software module are component of a program and not the main programme.
They form essential part of the main programme with or more routines. One or more modules developed separately make up a program.
ERM software can be used for various businesses and in organization settings. It helps to identify compensation and monitor performance of the organization.
Enterprise risk software (ERM) is essential in managing various risk attached to a Job.
Therefore, ERM software modules deal with setting employee objectives, performance, and compensation
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A designer wraps up a final prototype of a language learning app in Adobe XD, and wants to share their work with the development team. Before they publish the prototype on the cloud, they name the file: LanguageApp-Version-Final. Does this file name reflect best practices
In the case above, file name do not reflect best practices and as such it is No. A file name must include the date, the author, and the version number.
Why should a filename reflect its contents?A file name is known to be the key identifier of a file and a Good file name need to present some clues in regards to its content, status and version.
Hence, In the case above, file name do not reflect best practices and as such it is No. A file name must include the date, the author, and the version number.
See options below
Does this file name reflect best practices?1 point
Yes. A file name should include the project name and version.
No. A file name must include the date, the author, and the version number.
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Say true or false
Computer is the main tool of ICT.
b. Cyber crimes play positive role for better use of ICT
True or false, the total number of clock cycles (cc) for a delay loop of 10 ms for 2-mhz 8086 clock is 10,000 cc.
Answer:
FALSE is the answer of that question
I HOPE IT HELP YOU
On a Local Area Network, or LAN, what identification do nodes use to communicate with each other internally
On a Local Area Network, or LAN. MAC addresses are the identification that nodes use to communicate with each other internally. This is further explained below.
What is the MAC address?Generally, A media access control address, often known as a MAC address, is a one-of-a-kind identification that is given to a network interface controller (NIC) in order for it to be used as a network address in communications that take place inside a network segment. This use is typical in the vast majority of networking technologies based on IEEE 802, such as Ethernet, Wi-Fi, and Bluetooth.
In conclusion, On a LAN, or local area network. Nodes interact with each other inside using MAC addresses.
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Classes that depend on field names from parent classes are said to be ____ because they are prone to errors.Group of answer choicesrobustinnovativefragileconstructive
Classes that depend on field names from parent classes are generally said to be fragile because they are very prone to coding errors.
What is a class?A class can be defined as a user-defined blueprint (prototype) or template that is typically used by software programmers to create objects and define the data types, categories, and methods that should be associated with these objects.
In object-oriented programming (OOP) language, a class that is written or created to implement an interface would most likely implement all of that interface's method declarations without any coding error.
In Computer programming, we can infer and logically conclude that classes that are highly dependent on field names from parent classes are generally said to be fragile because they are very prone to coding errors.
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The telephone system is an example of a ________ network
The telephone system is an example of a circuit-switched network.
Is telephone a circuit switched network?Yes. The Traditional telephone systems such as landlines are known to be a common example of a technology that are said to often make use of the circuit switching.
Hence, The telephone system is an example of a circuit-switched network is a true statement.
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Refer to Table 8-4. Consider the data above (in billions of dollars) for an economy: Gross domestic product (in billions of dollars) for this economy equals
If one uses the data above (in billions of dollars), the Gross domestic product (in billions of dollars) for this economy equals $1,200.
What is the GDP about?Note that:
GDP (Gross Domestic Product):
Thus it will be :
Consumption + Investment + Government expenditure + (Export - Import)
Which is:
GDP = 800 + 200 + 300 + (100 - 200)
GDP = $1200 billions
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Consumption expenditures $800
Investment expenditures 200
Government purchases 300
Exports 100
Imports 200
Wages 800
8) Refer to Table above. Consider the data above (in billions of dollars) for an economy: Gross domestic product (in billions of dollars) for this economy equals
A) $2,200.
B) $1,600.
C) $1,400.
D) $1,200.
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A developer created a helper class with a method that can be called from Visualforce pages, web services, triggers, and of even anonymous code. When the method is called from a trigger
Since the developer created a helper class with a method that can be called from Visualforce pages, the method is as a result of a trigger known as option A. Check if Trigger.isExecuting ==true.
Who is a system developer?A systems developer is known to be one among the type of software developer.
Note that they are known to be the person that is said to be responsible as they help to create and implement applications and programs for the backend processing systems that is said to be often used in regards to businesses and organizations.
Note that Backend processing systems are said to be a behind-the-scenes aspect of software and as such, Since the developer created a helper class with a method that can be called from Visualforce pages, the method is as a result of a trigger known as option A. Check if Trigger.isExecuting ==true.
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A developer created a helper class with a method that can be called from Visualforce pages, web services, triggers, and of even anonymous code. When the method is called from a trigger, the developer needs to execute logic that should not be executed If the method Is called from anywhere else. How can the developer determine if the code Is executed in a trigger context?
A. Check if Trigger.isExecuting ==true
B. Check if Trigger.newMap !=null.
C. Check if System.executionContext =='Trigger'.
D. Use the executeOnTrigger annotation on the method definition.
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