The default constraint gives a value to an attribute when a new row is added to a table.
Is default a kind of constraint?This is known to be a type of constraint that often apply a value to a column if an INSERT statement does not really give the value for the column.
Therefore, one can say that the default constraint gives a value to an attribute when a new row is added to a table.
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Which is a major drawback of muliuser procesing of a database
The main drawback of multiuser processing of a database is:
Lost-update problem.What is lost-update problem?In the area of lost update problem, an update that has been carried on to a data item by a transaction is said to be lost as it is known to be overwritten by the update that has been carried on by another transaction.
Therefore, The main drawback of multiuser processing of a database is:
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Acceptance testing: tests each program separately in the system. tests the functioning of the system as a whole. provides the final certification that the system is ready to be used in a production setting. tests the conversion of legacy data to the new system. includes all the preparations for the series of tests to be performed on the system.
Acceptance testing provides the final certification that the system is ready to be used in a production setting.
What is an acceptance testing?It should be noted that acceptance testing is the last phase of software testing.
In this case, acceptance testing provides the final certification that the system is ready to be used in a production setting.
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Which open-sourced packet capture tool uses linux and mac os x operating systems?
Tcpdump is an open-sourced packet capture tool which uses Linux and Mac OS X operating systems.
What is tcpdump?Tcpdump can be defined as an open-sourced packet capture tool that is typically used to monitor and record TCP/IP traffic that are passing through a network and most Unix-like operating systems such as Linux.
This ultimately implies that, tcpdump is an open-sourced packet capture tool which makes use of Linux and Mac OS X operating systems.
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You have been receiving a lot of phishing emails sent from the domain kenyan.msn.pl. Links within these emails open new browser windows at youneedit.pl. You want to make sure that these emails never reach your inbox, but you also want to make sure that emails from other senders are not affected. What should you
The thing that should be done is to add kenyan.msn.pl to the email blacklist.
What is phishing?It should be noted that phishing simply means an attempt to steal ones money by taking the users information online.
In this case, the thing that should be done is to add kenyan.msn.pl to the email blacklist.
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a web browser is an example of which type of network component?
A web browser is an example of Network Client type of network component.
What is a Network Client?This is known to be a software that runs usually on a client computer and it is one that gives room for it to set up connectivity with services that are known to be running on server computers.
Note that A web browser is an example of Network Client type of network component as that is what it is..
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Which command in power bi desktop query editor is used to create a new query that uses the output of another query as its input source?
The Reference command in power bi desktop query editor is used to create a new query.
What is the Reference command about?Note that if a person create a reference to another query, there is given just one applied steps where new query is said to be referencing to another query and starts it's own like parent query.
Therefore, The Reference command in power bi desktop query editor is used to create a new query.
See options below
A. Duplicate
B. Pipe
C. Reference
D. Map
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What is the basic body structure of html.
Answer:
A line holding HTML version information, a declarative header section (separated by the HEAD element), and a body containing the document's actual content make up an HTML 4 page.
Answer:
introduction to the structure of HTML document and HTML for document is composed of 3 parts a line containing HTML version information a declarative had your section the limited by the head element a body which contains the documents actual continent
Explanation:
helpful for you
if you dont' have access to nessus, which of the following can be used by an attacker to gain information about remote *nix hosts?
The NMap procedure that can be used to help you to gain information about remote *nix hosts is Script Scanning
What is script scanning?The script scanner is known to be tool that acts as a measure component to the real Windows scripting host component as it helps to intercepts scripts, and also scans them before they are said to be executed.
Therefore, The script scanner is known to be tool that acts as a measure component to the real Windows scripting host component as it helps to intercepts scripts, and also scans them before they are said to be executed.
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Use wireshark to capture packets on the enp2s0 interface for five seconds. analyze the wireshark packets to determine whether arp poisoning is taking place. use the 192.168.0.2 ip address to help make your determination. answer the questions.
In the case above, the Questions that need to be answered is:
"What is the MAC address of the 1st responding device and the answer will be: 00:00:1B:11:22:33"The second question will be "What was the MAC address of the duplicate responding device and the answer will be 00:00:1B:33:22:11".How do you use wireshark to capture packets?The steps are:
Do Open Wireshark and then one can go to under Capture folder and then click on enp2so.Click on Blue fin to start capture.In about 5 seconds after that operation, , click red box to stopLook at the Apply a display filter type arp and click on Enter to depict those packetsLooking at the Info column, you will see lines having the 192.168.0.2 IP. Then Answer questions above.Learn more about wireshark from
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An organization needs to setup a(n) _____ infrastructure to issue and sign client certificates
Answer:
Certificate Authority (CA)
Explanation:
The requestor's identification is verified by the Certification Authority. The requestor might be a user, a program, or anything else. The identity mechanism is governed by the kind of CA, protection laws, and request processing needs. A certificate template is selected during setup, and the certificate is issued depending on the information provided upon request. CAs also publish revoked lists known as CRLs, which guarantee that invalid or illegal certificates are no longer utilized.
An organization needs to setup a CA infrastructure in order to issue and sign client certificates.
What is CA?CA is an acronym for Certificate Authority and it can be defined as a trusted and verified entity that is saddled with the responsibility of issuing digital certificates in order to authenticate any content that is sent from web servers of an organization.
This ultimately implies that, an organization needs to setup a Certificate Authority (CA) infrastructure in order to issue and sign client certificates.
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Write an if-else statement to describe an integer. Print positive even number if iseven and ispositive are both true. Print positive number if iseven is false and ispositive is true. Print not a positive number otherwise. End with newline.
The positive number if is even is false and the positive is true. Print, not a positive number otherwise. End with a newline. C code is the answer.
How, support your answer?#include <stdio.h>
#include <stdbool.h>
int main(void) {
int userNum;
bool is Positive;
bool is Even;
scanf("%d", &userNum);
isPositive = (userNum > 0);
isEven = ((userNum % 2) == 0);
if(isPositive && isEven){ printf("Positive even number");}
else if(isPositive && !isEven){
printf("Positive number");}
else{ printf("Not a positive number");
}printf("\n");
return 0;
Thus, this could be the answer.
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why open source software is very important for the country like Nepal
Collaboration promotes innovation through open source licensing. Many of the modern technology we take for granted would not exist today without it or would be hidden behind the restrictions of the patent system. Technology has advanced so quickly over the last few decades because of the open source movement.
if we intend to include a servo motor as an actuator, what feature should we include when selecting a microcontroller?
If we intend to include a servo motor as an actuator, the feature that we should include when selecting a microcontroller is pulse width modulation pin.
What is a microcontroller?It should be noted that a microcontroller simply means an integrated circuit that designed to govern particular operation in a system.
In this case, if we intend to include a servo motor as an actuator, the feature that we should include when selecting a microcontroller is pulse width modulation pin.
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Gaining an understanding of the current application system and messages provides a _________ against which future design requirements can be gauged
Gaining an understanding of the current application system and messages provides a baseline against which future design requirements can be gauged
Having an understanding of the current application system and messages provides a baseline against the future design requirements that can be gauged.
What is a baseline?A baseline is known to be a kind of imaginary starting point or the option that is often used as a basis of comparison for a thing.
Note that in the above case, when a person has an understanding of the current application system and messages, it gives a baseline against the future design requirements that can be gauged.
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An organization with a(n) _____ structure, sometimes called a "franchiser," uses highly centralized information systems
An organization with a global structure, sometimes called a "franchiser," uses highly centralized information systems to perform its tasks.
What is an information system?An information system refers to a set of computer systems that is primarily used by an organization to obtain, store, and process data, including the dissemination of information, knowledge, and the distribution of digital products from one geographical location to another.
Basically, an organization with a global structure, which is sometimes referred to as a "franchiser," make use of highly centralized information systems to perform its tasks.
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what does the acronym siem stand for in a cybersecurity context?
Siem is an acronym which stands for Security Information Event Management.
From a cybersecurity context, Siem is a term used for generalized tools that help an organization monitor their IT systems in other to detect potential cyberattacks.
In other words, Siem helps companies monitor and detail security events that occur within an organization's IT infrastructure.
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Sftp uses which mechanism to provide security for authentication and data transfer?
Sftp uses SSH mechanism to provide security for authentication and data transfer.
What are SSH known for?SSH or Secure Shell is known to be a kind of a network communication protocol that helps two computers to be able to communicate and also share their data.
Therefore, one can say that Sftp uses SSH mechanism to provide security for authentication and data transfer.
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you're using a linux distribution that uses rpm for package management. which command would you use to install httpd, the apache http server package, and all its dependencies?
The command that a person would use to install httpd is known to be yum install httpd.
What is the command about?Note that in any Linux distribution that often employs the use of RPM for package management, the act of inputting yum install httpd at the command line will hep a person to be able to install the Apache HTTP Server package and any of its dependencies.
Note that YUM automatically find and downloads RPM packages and as such The command that a person would use to install httpd is known to be yum install httpd.
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To freeze rows 1 and 2, and columns 1, 2, and 3, which cell should you highlight before selecting freeze panes?.
In the case above, the cell that you can highlight before selecting freeze panes is row 3 column 4.
How do one freeze several column?This can be done when a person select the column that's is said to be next to the right of the last column a person want to freeze.
Therefore, In the case above, the cell that you can highlight before selecting freeze panes is row 3 column 4.
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Which hardware component interprets and carries out the instructions contained in the software.
Answer:
Processor
A processor interprets and carries out basic instructions that operate a computer.
When designers follow accepted standards and protocols, which of the four basic characteristics of network architecture is achieved
When a designer follow accepted standards and protocols, the basic characteristics of network architecture that's achieved is called scalability.
What is scalability?Scalability can be defined as a measure of the ability of a system to change (increase or decrease) in performance and cost as a result of changes in demands of application and system processing, especially in a network architecture.
This ultimately implies that, scalability is the basic characteristics of network architecture that's achieved when a designer follow accepted standards and protocols.
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When you switch-on your computer system, just wait a ____________ and
allow the system to _______________. After________________, the
system will route itself to a background known as the
________________environment.
On this environment, move the ________________ to where we have the
START / Windows Icon at the bottom left. Click on this icon whether it’s
the START or the Windows icon. Now type the word “Microsoft Word” in
the ______________ bar and left-click on the _____________that has
“W” icon. There you found yourself in the Microsoft environment. The
environment comes up with an “A4 paper- size in a _______________
orientation background”, there you start typing your letter.
The answers for the blanks are as follows:
Minute Windows_startGUI environmentCursorSearchFilePortraitWhen you switch-on your computer system, just wait a minute and allow the system to boot_. After_windows_start___,
The system will route itself to a background known as the_GUI__ environment.
On this environment, move the cursor___ to where we have the START / Windows Icon at the bottom left.
Click on this icon whether it’s the START or the Windows icon.
Now type the word “Microsoft Word” in the __search_ bar and left-click on the _file__that has “W” icon.
There you found yourself in the Microsoft environment. The environment comes up with an “A4 paper- size in a portrait_orientation background”,
There you start typing your letter.
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You are trying to establish a Wi-Fi Direct connection between a Windows desktop system and a Windows tablet device. You have installed an 802.11n wireless adapter in the desktop system. However, you are unable to see the tablet device. Which action must you take to see the tablet device from the desktop
Answer:
Update the desktop system's wireless network adapter driver with one that supports Wi-Fi Directly. To initiate Wi-Fi Direct connections with other devices, the drivers for your wireless network adapter must be Wi-Fi Direct supported. The wireless adapter in the desktop system is the most probably offender in this circumstance because it is a third-party device that was not installed by the manufacturer.
Please post detailed answers to the following questions. Please use complete sentences.
Select two artists from the following list:
Phil Borges
Lee Jeffries
Stephanie Sinclair
Jimmy Nelson
Use the internet to find at least three images for each of the artists that you selected. In a word document, include the names of the two artists and the images you selected. Then answer the following questions about each photographer using complete sentences:
What life events impacted this photographer?
What is their personal style? How do you know?
What is the photographer’s purpose for taking the images you selected?
How are the two artists that you selected differently? How are they similar?
Please post detailed answers to the following questions. Please use complete sentences t two artists from the following list: Phil Borges,Lee Jeffries.
What are photography opportunities?The taking of constant or nevertheless snap shots furnished a brand new medium with which to seize reality, and modified the manner humans in general, and artists in particular, noticed the arena and created new inventive opportunities. Learning from the technological know-how of photography, artists evolved a selection of the latest portrayal techniques.
Photography modified our imaginative and prescient of the arena with the aid of using presenting greater get entry to to greater snap shots drawn from greater locations and instances withinside the global than ever before. Photography enabled snap shots to be copied and mass-distributed. The media-sphere became burgeoning.
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An end-user received an email stating his bank account was compromised, and that he needs to click a link to reset his password. When the user visited the site, he recognized it as legitimate and entered his credentials which were captured by a hacker. What type of social engineering attack does this describe
Answer:
A phishing attack
Explanation:
Phishing attack is the process of delivering fake communications that appear to come from a trusted source. It is often done by email. The purpose is to steal personal information such as credit card and login information, or to installing malicious on the victim's PC. Phishing is a widespread sort of cyber assault that everyone should be aware of in order to stay safe.
Phishing in the banking industry seeks to get personal information such as banking logins, PINs, bank account information, and credit card details. Fraudsters utilize this data to gain access to accounts, transfer funds, perpetrate credit card fraud, or sell it on the black market. Occasionally hackers are content just to obtain user's personal information and credit card details for financial benefit. In other circumstances, phishing emails are sent in order to get employee login credentials or other details for use in more hostile assaults against a small group of people or a single firm. Phishing is a sort of cyber assault that everyone should be aware of in order to protect oneself and guarantee organizational email security.
what does the asterisk (*) after select tell the database to do in this query?
The asterisk informs the database to select all data that meets the criteria as stated in the query.
What is an Asterisk server?Asterisk is one that changes an ordinary computer into a kind of communications server. Note that the asterisk or star symbol ( * ) is one that connote all columns.
Therefore, The asterisk informs the database to select all data that meets the criteria as stated in the query.
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the internet is controlled by ______
In the case above, No one control the Internet.
What is the internet control about?
Note that no one and everyone has no control over the use of the Internet as it is said to be a network of networks.
Note that there are separate networks that is said to belongs to different firms and organizations as they have their own laws and regulations.
Therefore, In the case above, No one control the Internet.
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what does a dns server do
A DNS server is a type of server that translate requests for domain names into IP addresses.
What is a DNS server?A DNS server can be defined as a type of server that is designed and developed to translate domain names into IP addresses, so as to allow end users access websites and other internet resources through a web browser.
This ultimately implies that, a DNS server is a type of server that translate requests for domain names into IP addresses.
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Technicians who perform sealed-system service on small appliances must have; Question 13 options: Type I, II, or III certification. Type I or Universal certification. Type II certification. A Universal 609 certification
The technician who performs sealed-system service on small appliances must have Type I or Universal certification. Thus, the correct option is B.
What is a Sealed-system service?A sealed-system service may be defined as those services which are performed by the technician that can be sealed by the product of the company with the mark of OK tested.
Type I certification delivers to those technicians who service, maintain and repair small appliances that incorporate CFCs, HCFCs, or HFCs.
Technicians can hold either Type I or Universal certification which includes Type I to service appliances sheathed under Section 608.
Therefore, it is well described above.
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Phases of systems development life cycle do developers identify the particular features nd functions of a new system
Answer:
requirement analysis
Explanation:
The goal of the requirement analysis phase is to specify the system inputs, processes, outputs, and interactions in greater depth. The system's operations would be specified at the functional level by the end of this phase, which means that the functions and features to be done will be defined but not necessarily how they will be executed. Requirements Analysis should not evaluate computer software, documents, or data streams unless expressly restricted by the Project Charter. The risks associated with how the system will be integrated into the standard operating procedures will be identified and considered during the requirements analysis. The functional and system requirements of the business process, as well as the user and operational needs, will be collected throughout the requirements analysis.
The phase where developers identify the particular features and functions of a new system is the requirement and analysis stage.
What is system development?System development is the process of defining, designing, testing, and implementing a new software application or program.
System development has a life cycle. The primary stages are as follows;
Planning stageRequirement and AnalysisDesignDevelopmentTestingImplementation.Operation and maintenance.Therefore, the phase where developers identify the particular features and functions of a new system is the requirement and analysis stage.
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