The correct answer is newaliases command must be run in order to rebuild the aliases database.
From a text file, newalias generates new hash and data files. The system alias files are updated if the application is run with the -g (global) parameter. Otherwise, the application produces files at $HOME/ after searching for a file called $HOME/. elm/aliases. text. The /etc/mail/aliases file's random access database is rebuilt using the newaliases command. When /etc/mail/aliases is more recent than /etc/mail/aliases, sendmail(1M) will automatically execute it. pag. The /etc/aliases file is used by the newaliases command to create a fresh copy of the alias database. Every time this file is modified, it must be executed again for the changes to take effect. The sendmail command with the -bi parameter is identical to performing this command.
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biginteger class can be used to compute and process floating-point numbers with any arbitrary precision. true false
It is true that you may utilise the bigInteger and BigDecimal classes in the java.math package if you need to work with really huge integers or highly precise floating-point numbers.
arbitrary-precision integers that are immutable. All operations function as if BigIntegers were written in two's complement notation, much like the basic integer types in Java. BigInteger offers equivalents for all of Java's primitive integer operators as well as all pertinent java.lang.Math methods. BigInteger further has operations for modular arithmetic, GCD computation, primality checking, prime creation, bit manipulation, and a few more unrelated functions.
The semantics of arithmetic operations exactly match those of The Java Language Specification's integer arithmetic operators. Division by zero, for instance, causes an ArithmeticException to be thrown, whereas division of a negative number by a positive number results in a negative (or zero) residual. As BigIntegers are created as large as necessary to hold the results of an operation, all of the subtleties in the Spec about overflow are disregarded.
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define a function getchars() that has one input string parameter, one character parameter, and one output vector parameter passed by reference
The C++ code for a function getchars() with one input string parameter, one character parameter, and one output vector parameter passed by reference is shown below.
Coding Part:
#include <iostream>
#include <vector>
using namespace std;
void GetValues(string inputString, char x, vector<char> &results)
{ int l = inputString.length(); for (int i = 0; i < l; i++)
{ if (inputString[i] != x)
{ results.push_back(inputString[i]);
}
}
}
int main()
{ string inputString; int i;
char x;
vector<char> results;
cin >> inputString;
cin >> x;
GetValues(inputString, x, results);
for (i = 0; i < results.size(); ++i)
{ cout << results.at(i) << endl; }
return 0; }
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A library system contains information for each book that was borrowed. Each time a person borrows or returns a book from the library, the following information is recorded in a database.
Name and the unique ID number of the person who was borrowing the book
Author, title, and the unique ID number of the book that was borrowed
Date that the book was borrowed
Date that the book was due to be returned
Date that the book was returned (or 0 if the book has not been returned yet)
Which of the following CANNOT be determined from the information collected by the system?
The thing that can not be determined from the information collected by the system is the amount of information or content a student studies in the book.
What is Database?The database may be defined as an organized collection of data stored and accessed electronically. This refers to the set of structured data that is stored in a computer system that can be easily accessed and retrieved for future and current use. There are the following types of databases are there:
Relational database.NoSQL databases.Cloud databases.Columnar databases.Wide column databases.Therefore, the thing that can not be determined from the information collected by the system is the amount of information or content a student studies in the book.
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when it comes time to execute a vulnerability scan, what are optional tools you might use to launch it? (select two.)
Vega is an optional tool that you might use to initiate a vulnerability scan when the time comes.
The process of scanning an image so that a computer can save, edit, or comprehend it is known as a scan. Utilizing an optical scanner is the most typical scanning technique. Text can also be scanned and entered into a computer using specialised software like an OCR (optical character recognition) programme.
Today, it's also possible to use the camera on your smartphone as a scanning tool. For illustration, a QR code for the Computer Hope website is shown. You can choose to launch the Computer Hope website by pointing your smartphone camera at this code.
a phrase used to describe the procedure of using software to review files for various purposes. Antivirus software checks files, for instance.
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you decide to use a spreadsheet function to divide the text strings in column g around the commas and put each fragment into a new, separate cell. you are using the split function. 1 point true false
True, You choose to split apart the text strings in column g after the commas using a spreadsheet function and place each piece in a different, independent cell. The split function is being used by you.
A strings is a form of data used in programming that is similar to integers and floating point numbers, except it represents text rather than numerical values. It is made up of a string of characters, which can also include spaces and numerals. As an illustration, the words "hamburger" and "I ate 3 hamburgers" are both strings. If properly defined, even "12345" could be regarded as a string. To make sure that a string is identified as a string and not a number or variable name, programmers typically have to wrap strings in quotation marks.
In the comparison, for instance, if (Option1 == Option2) then
Variables in options 1 and 2 could contain strings, numbers, or other types of data. The test yields a result of true if the values are the same.
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computer 1 on network c, with ip address of 172.16.1.57, wants to send a packet to computer 2, with ip address of 172.16.1.133. if the ttl value was set to 64 at the beginning, what is the value of the ttl once it reaches its destination?
Computer 1, with the IP address 172.16.1.57, on network c wishes to send a packet to computer 2, with the IP address 172.16.1.133. When it arrives at its destination, the ttl value will still be 64 if it was set to 64 at the beginning.
What in ping is TTL 64?The packet can make up to 64 hops before being dropped. A longer TTL on packets is advantageous for hard-to-reach hosts that are spread out across numerous Internet hops.
When it gets to its destination, what does the TTL mean?When TTL approaches zero, TTL=0, the router discards the packet and sends the Time Exceeded Error message to the originating host.
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question 5 which sql tool considers one or more conditions, then returns a value as soon as a condition is met?
When the first condition is satisfied, the CASE statement iterates over all possible outcomes and produces a result. If a condition is satisfied, CASE will return the specified outcome. It will return the value in the ELSE clause if none of the requirements are met.
Using IF... ELSE, any T-SQL query may be performed conditionally. If the condition is True, T-SQL statements in SQL Server that are followed by an IF condition will be performed. ELSE-followed T-SQL statements will be executed if the condition evaluates to False. A database table's records are retrieved using a SQL SELECT statement in accordance with clauses (such FROM and WHERE) that define criteria. The SQL INSERT statement is used to insert one or more records or tuples in the table. The syntax is: SELECT column1, column2 FROM table1, table2 WHERE column2='value'. The table attribute data is updated using the MODIFY command. So, to modify one or more fields in a record, use the MODIFY command.
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write the pseudocode for an algorithm longestpathdag(g, s, d) that takes a directed acyclic graph g, a source node s and a destination node d as the inputs. what is the asymptotic runtime of your algorithm?.
Because the longest path issue lacks the optimal substructure property, it is more difficult than the shortest path problem for general graphs.
In actuality, the Longest Path issue for a general graph is NP-Hard. For directed acyclic graphs, the longest path issue does, however, have a linear time solution. We employ Topological Sorting, which is conceptually comparable to the linear time solution for the shortest path in a directed acyclic network. We establish a topological sorting of the graph by setting the distances to all vertices as negative infinity and the distance to the source as zero. A graph's linear ordering is represented by topological sorting below, which is a linear representation of figure.
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juan is explaining various dos attacks to security operators at his company. which attack causes a network to perform a dos attack on one of its own servers?
A distributed denial-of-service (DoS) attack is a malicious attempt to obstruct a server, service, or network's regular traffic by saturating the target or its surrounding infrastructure with an excessive amount of Internet traffic.
What kind of assault does a DoS attack typically use?Buffer overflow incidents
The goal is to send more data to a network address than what the system's architecture permits.
What leads to a DoS assault?When legitimate users are prevented from accessing information systems, devices, or other network resources as a result of the acts of a malevolent cyber threat actor, this is known as a denial-of-service (DoS) attack.
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each router keeps a listing of all know paths that it connects to, so that it can forward packets from one router to another?
Each router keeps a 'routing table' listing all known paths that it connects to in order to forward packets from one router to another.
A routing table is defined as a set of rules, usually viewed in a table format, used to identify where data packets traveling over an Internet Protocol or IP network will be directed. The routing table is typically stored inside the Random Access Memory (RAM) of forwarding devices, such as routers and network switches. Routing tables are important in routing because they keep a map of connected networks which ensures that the forwarding process of packets is as efficient as possible.
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to override a method, the method must be defined in the superclass using the same signature as in its subclass. true false
The given statement is false in stating that overriding a method needs to be defined in the superclass using the same signature as in its subclass.
In Java programming context, override a method means that a subclass (child class) has the same method as of its the parent class (known as superclass). In simple terms, method overriding happens when a subclass provides a specific implementation of a method declared in one of its parent classes or super classes.
In regard to the given question, the true satatment is as follows. When overriding a method, the method must be defined in the subclass using the same signature as of its supclass.
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deandre has prepared an online presentation and asks his friend pam to review it. pam notices that he uses hyperlinks. what advice should pam give deandre?
You can play any downloaded audio or video clips on your device.
Why is a presentation made online important?Online presentations maintain all of PowerPoint's interactivity, enabling your clients to alter many different parameters in addition to just seeing the presentation, such as the playback speed and sound volume. Your clients can quickly obtain all the information they require by using internet marketing presentations.
What does the presentation's 5 5 5 rule entail?
The 5/5/5 Rule is as straightforward as its name suggests: when making slides for your presentation, use no more than: 5 words fit on one line. A single slide contains 5 lines of text. 5 slides that consecutively apply the first two rules.
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in simulation lab 4, you used a 4-bit opcode. in addition, each instruction in your instruction set had up to 4 micro instructions. what is the maximum number of instructions allywed in your instruction set?
Answer:
16
Explanation:
The maximum number of instructions allowed in the instruction set with a 4-bit opcode and up to 4 micro instructions per instruction is 16. This is because 4 bits can represent 16 different combinations (2^4=16).
question 3 sql is a language used to communicate with databases. like most languages, sql has dialects. what are the advantages of learning and using standard sql? select all that apply.
SQL is the relational database language that meets ISO/ANSI standards. SQL is a language for both defining and manipulating data. It can also express updates and be used as a query language.
What SQL language used to communicate with databases?SQL's goal is to manage, retrieve, store, and manipulate data in a database management system. It is frequently pronounced sequel. Early in the 1970s, IBM began to create SQL.
Therefore, it was first made available for purchase in 1979. It is acknowledged as the normative relational database management system on a global scale (RDBMS).
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During which of the four phases of analysis can you find a correlation between two variables?a. Organize datab. Format and adjust datac. Get input from othersd. Transform data
During Transform data of the four phases of analysis can you find a correlation between two variables. Hence option D is correct.
What does data transformation involve?A business can select from a variety of ETL technologies that automate the data transformation process. Using scripting languages like Python or domain-specific languages like SQL, data analysts, data engineers, and data scientists also alter data.
Students analyze the data set and investigate how an outlier—a statistical observation that has a significantly different value from the rest of the sample—affects location measures.
Therefore, one can say that the act of transforming, purifying, and organizing data into a useful format that can be studied to support decision-making procedures and to spur an organization's growth is known as data transformation. When data needs to be transformed to match the target system's requirements, data transformation is utilized.
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the term used for organized information about spatial data sets is question 9 options: quality control megadata warehouse meta analysis normalization metadata
In contrast to the content of the data, such as the message's text or the image itself, metadata is defined as "data that offers information about other data".
Metadata can take many different forms, including:
Descriptive metadata is data that describes a resource.
It is employed for both identification and discovery. Such components as the title, abstract, author, and keywords are included.
Structural metadata describes data containers and describes the construction of complex things, such as the arrangement of pages into chapters. It explains the many kinds, iterations, connections, and other features of digital content.
Administrative metadata is the data used to administer a resource, such as the resource type, permissions, and the circumstances surrounding its creation.
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which windows 8.1 tool allows you to see the event and warnings messages generated to give you a better idea of what might be causing problems?
You can view the event and warning messages created by the "Action Center" Tool in Windows 8.1 to have a better understanding of what might be creating issues.
What is the Action Center in the Windows8.1 or above Operating System?
Modern Microsoft Windows operating systems have a utility called the Action Center that collects and shows notifications from various programs and applications on the device.
Users have access to warnings and updates concerning concerns with software support, security, and other topics.
App notifications and quick actions are found in Windows 10's new action center. Search for the action center icon on the taskbar.
The original action center has been renamed Security and Maintenance, however it is still present. You still go there to modify your security settings.
Type "security and maintenance" into the taskbar's search box, and then click on Security and Maintenance in the list that appears.
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one software license model allows software to be freely distributed, downloaded, and installed without paying a license fee but often requires a fee f
Open source. Code that is intended to be publicly accessible is known as open source software; anybody can view, alter, and distribute the code as they see appropriate.
What is open source in software?Open-source software is computer code that is made available under a licence that enables users to use, examine, modify, and share it with anybody for any reason. Software that is open-source can be created collaboratively and transparently.Development of open-source software might include a variety of viewpoints that go beyond those of a single corporation. According to a 2008 report by the Standish Group, customers are saving around $60 billion annually as a result of the adoption of open-source software models.Similar to how user scripts and custom style sheets enable users to customise websites, open source software can be used for research and education. Capable users can modify the software to suit their own needs, publish the modification as a fork for users with similar preferences, and then directly submit potential improvements as pull requests.To learn more about open source refer :
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what is the sum of all possible values stored at 0(s0) after this code runs? hint: there should be 4 possible values.
Answer:
Without more information, it is not possible to accurately determine the sum of all possible values stored at 0(s0) after this code runs.
Explanation:
It is not possible to determine the sum of all possible values stored at 0(s0) after this code runs without more information. This is because the code does not specify the initial value of t0 or the initial value stored at 0(s0). Without this information, it is not possible to determine the final value stored at 0(s0) after the code runs.
Additionally, the code does not specify how the threads are scheduled or the order in which they execute the instructions. This means that the final value stored at 0(s0) could be different depending on the order in which the threads execute the instructions.
acme global provides on-site yoga and exercise classes to all employees. the company hopes that providing these classes for free will help it lower health-care costs. acme global's program is a(n) .
acme global provides on-site yoga and exercise classes to all employees. acme global's program is an employee assistance program (EAP).
A work-based intervention program called an employee assistance program (EAP) is intended to help employees deal with personal issues that might be negatively influencing their performance.
EAPs have traditionally helped employees with problems like alcoholism or drug abuse, but most now offer support for a wide range of problems, including those involving child or elder care, troubled relationships, financial or legal issues, wellness concerns, and traumatic events like workplace violence. Employees are not charged for the programs that are provided by independent EAP vendors or providers who are a part of full-service health insurance policies.
Numerous other services, such as nurse advice lines, fundamental legal support, or adoption assistance, may also be included in an EAP.
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A technician is to document the current configurations of all network devices in a college, including those in off-site buildings. which protocol would be best to use to securely access the network devices?
A network security technology called Secure Socket Layer (SSL) is largely employed to guarantee secure internet connections and safeguard sensitive data. This protocol can support both server-to-server and server-to-server communication.
What best to use to securely access the network devices?A networking technology called Safeguard Socket Layer (SSL) is used to secure communications between web clients and web servers over insecure networks like the internet.
Therefore, Although SSL is still the most widely used phrase online, most users actually mean TLS because both SSL public versions are insecure and have been abandoned for a long time.
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what kind of testing involves creating two versions of an ad, showing both at random across the ad network?
This type of testing is known as A/B testing.
What is testing?
Testing is the process of evaluating a system or its components with the intent to identify any issues, bugs, or gaps compared to the defined requirements. During testing, the system is tested in a controlled environment and the results are analyzed to assess the system’s compliance with the requirements. In some cases, the system is also tested against user expectations. Testing can be done manually or through automated tools. Manual testing involves the use of tools such as test cases and test plans, while automated testing involves the use of tools such as software tests or test scripts. Depending on the type of system and the environment, different types of tests may be used, including functional, integration, regression, and acceptance testing. Testing helps to identify any issues early on and can help to reduce the cost of fixing any problems found.
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in an interview, you are asked to explain how gamification contributes to enterprise security. how should you reply?
a. recreational gaming helps secure an entriprise network by keeping the attacker engaged in harmless activites
b. instructional gaming in an enterprise keeps suspicious employees entertained, preventing them from attacking
c. instructional gaming can train employees on the details of different security risks while keeping them engaged
d. recreational gaming can train employees on how to contain a physical threat at an enterprise
The use of instructional gaming to teach staff about specific security concerns while keeping them interested is one way that gamification contributes to enterprise security.
What impact does gamification have on business security?Because it motivates employees to do particular activities by appealing to their competitive natures, gamification has shown to be a highly effective method of securing employee engagement in cyber security awareness programs.
Why is game-based learning significant for businesses?Increased adoption and usage of learning management systems are just a few ways that gamification in the workplace, when done wisely, can help improve corporate performance. increasing employee performance and retention Increased knowledge sharing among employees will boost customer service.
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what website is sister educational services officers with number tracking and rating specific statics and testing
The website NAVY ENLISTED ADVANCEMENT SYSTEM aids the educational services officer (eso) with member tracking and rating specific statistics and tests (NEAS).
The NAVY ENLISTED ADVANCEMENT SYSTEM website aids the educational services officer (eso) with member tracking, rating, and testing (NEAS).
The NAC is well recognized for assisting with and sharing all enlisted advancement exams in relation to Navy-wide administration, examining and rank-ordering all candidates for advancement, among other things.
Therefore, the website that helps the educational services officer (eso) with member tracking, rating, and testing is called the NAVY ENLISTED ADVANCEMENT SYSTEM (NEAS).
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true or false - an online password attack is performed on network services, such as ssh, http, ftp, and smb. true false
Answer:
True
Explanation:
identify the method: this method is run before the file system is mounted and made available (assumes that no other file-system activity is on-going while it runs); once finished, the on disk file system should be consistent and thus can be made accessible to users. select one: a. journaling b. backpointer-based consistency c. fsck d. superblock
Prior to the file system being mounted and made accessible, fsck is used.
How can I mount a file system that is not packaged?Create a directory, such as /opt/unbundled, to serve as the mount point for the file system you wish to mount first. Once the mount point has been established, mounting the file system (using the mountcommand) makes all of the directories and files in /opt/unbundled accessible.
What does the term "mount a file system" mean?A file system is made accessible to the system by being mounted, which attaches it to a directory (or mount point). Always mounted is the root (/) file system. The root (/) file system is the default and can be joined or unconnected by any other file system.
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3 based on the commands you executed, what is likely to be the operating system flavor of this instance? (case-sensitive)
Based on the commands you entered, Amazon Linux 2 is probably the instance's operating system choice.
Describe the operating system.
An operating system (OS) is a type of system program that regulates how computer hardware and software resources are utilized and offers basic services to other software applications. Operating systems that use time-sharing schedule tasks to make the most of the system's resources. They may also contain accounting system to allocate costs for processing time, mass storage, printing, as well as other resources. Although application code is typically run directly by equipment and frequently makes operating system to an OS function or if it is interrupted by it, the operating system serves as a bridge between systems and computer hardware with helps determine like input & output and storage allocation.
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roblyer per the course syllabus, for what exceptional situations will i consider changing your final course grade? group of answer choices
Note that one would consider changing a student's final course grade if there was a documented medical or psychological issue, a death in the immediate family, or a documented technical issue that prevented the student from completing their work.
One would also consider changing a grade if the student was able to provide evidence of a significant improvement in their work over the course of the semester.
What is a Final Course Grade?A course's final grade is the average of both the semester grades.
The teacher or lecturer awards a grade to demonstrate the student's degree of success or status within that group by comparing a student's total course progress with that of some comparable group of students.
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write a program to test if an integer input from the keyboard is divisible by two, or divisible by 3, or both!
The function to check whether an integer is divisible by three will accept an input integer and divide it by three to see if it is.
Create a programme to check whether a keyboard-inputted integer is divisible by two, three, or both!The user input is saved in the integer variable.We return "it is divisible by 3" if the number is divisible by three, and "it is not divisible by 3" if it is not.The following function checks if a number may be divided by three:#include <stdio.h>
int main(void) {
int num;
printf("Please enter an integer: ");
scanf("%d", &num);
if (num % 2 == 0 && num % 3 == 0) {
printf("This number is divisible by 2 and 3\n");
} else if (num % 2 == 0) {
printf("This number is divisible by 2\n");
} else if (num % 3 == 0) {
printf("This number is divisible by 3\n");
} else {
printf("This number is not divisible by 2 or 3\n");
}
return 0;
}
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sequential access can be optimized by a. free-behind technology b. read-ahead technology c. all of the above d. none of the above
Sequential access can be optimized by none of the above both of the preceding Technology read-ahead, technology free-ahead
Sequential access refers to the process of accessing a collection of items in a predetermined, ordered manner, such as data stored on magnetic tape, in a disk file, or in a memory array. It is the antithesis of random access, which allows for anytime, anywhere access to any element of a sequence with equal ease and efficiency.
When the data is stored on a tape, for instance, sequential access may be the only option for getting at it. It might also be the preferred access technique, for instance, if all that is required is the orderly processing of a series of data pieces.
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