Answer:
Reference value.
Explanation:
A computer virus is an executable program that attaches to, or infects, other executable programs.
Answer:
True
Explanation:
The statement given in question is true. Virus is a type of malware that is attached to a file in computer system where it makes copy of itself and spreads in the computer memory very quickly which affects various processes of the system. It reduces performance of the system. They consumes space and resources of the system. If detected on time, virus can be removed easily using antivirus softwares.
Which of the following facts determines how often a nonroot bridge or switch sends an 802.1D STP Hello BPDU message?
a. The Hello timer as confi gured on that switch.
b. The Hello timer as confi gured on the root switch.
c. It is always every 2 seconds.
d. The switch reacts to BPDUs received from the root switch by sending another BPDU 2 seconds after receiving the root BPDU.
Answer:
b. The Hello timer as configured on the root switch.
Explanation:
There are differrent timers in a switch. The root switch is the only forwarding switch in a network, while non root switches blocks traffic to prevent looping of BPDUs in the network. Since the root switch is the only forwarding switch, all timing configuration comes from or is based on the configuration in the root.
The hello timer is no exception as the nonroot switch only sends 802.1D DTP hello BPDU messages forwarded to it by the root switch and its frequency depends on the root switch hello timer.
Describing where this quadratic is negative involves describing a set of numbers that are simultaneously greater than the smaller root (+1) and less than the larger root (+3). Write a C++ Boolean expression that is true when the value of this quadratic is negative.
Answer:
The Boolean Expression is (x >1)&&(x<3)
Explanation:
As mentioned in the question that to describe where the given quadratic is negative involves describing:
a set of numbers that are greater than the smaller root which is +1a set of numbers that are less than larger root which is +3So when the quadratic is negative the following boolean expression is true:
(x >1)&&(x<3)
This expression means that the set of numbers are greater than 1 and less than 3. x represents such number. So this boolean expression returns a boolean value true when the 1 and 2 are true. It can also be returned as 1 (which means true in boolean). In the above expression > and < are relational operators used for comparison and & is called logical operator which depicts that both (x>1) and (x<3) should hold or should be true for the expression to return true.
Example of boolean expression
The logic of Boolean expressions is explained with the following chunk of C++ code. For example x is a number, (x>1)&&(x<3) is an expression whose result is stored in "bool" data type variable result. If this expression holds true(i.e. value of x is greater than 1 and less than 3) then output will be 1 (true) otherwise 0(which means false).
int x;
cout<<"enter value";
cin>>x;
bool result;
result=(x>1)&&(x<3);
cout<<result;
A security analyst is checking the bash command history on a Linux host that was involved in a data breach. The data breach stemmed from the Linux host running a series of commands against a web server on the internal network, which exploited a vulnerability in an unpatched, outdated Apache module.Given this scenario, which of the following commands might the analyst find in the bash command history for banner grabbing? (Select TWO).A. arpB. tracertC. nmapD. telnetE. nslookup
Answer:
C. nmap & D. telnet
Explanation:
Why nmap?
nmap is a command that is used to determine which hosts are running and which services are being executed in such hosts. This is a well-known command among the hacking community to provide access to this type of information in order to grab information from open ports.
Why telnet?
Like nmap, telnet is used to examine which ports are opened and which ones are closed. Opened ports represent a breach in the network, leading to hackers accesing the information through this access point.
how to engage more underrepresented and under resourced students in stem programs?
Answer:
Through after school programs
Explanation:
Under represented and under resourced students can be better engaged in STEM programs through the establishment of after school state of the arts learning centres that can augment for the vacuum in the regular school system.
In such programs, the use of technological platforms with an integrated electronic learning system is necessary, because it avails the students the opportunity to brace up with the evolving impact of information technology to learning and personal developments.
Secondly, the use of immediate resources within the reach of these under privileged and under resourced students is a necessity. for example, a student in a rural community could start become more engage in engineering designs, building technology, instrumentation and architecture through the use of disposed cartons used to construct buildings, cars etc.
What feature would be used to collect how many times users downloaded a product catalog?
G-Analytics is being used to track the operation of a web and gather information about its visitors.G-Analytics operates by embedding code on your website's pages.
The tracking operation gathers information about just the page request in a variety of ways and transmits it to the Analytics server in the following format of length connected to a single picture request.
Learn more information about 'G-Analytics'
https://brainly.com/question/4253357?referrer=searchResults
Josh, as an administrator for a health care company, is required to support an older, legacy application. He’s concerned about the application having some vulnerabilities that would affect the remainder of the network. Of the following, which option is the most efficient way to mitigate this?A) Use an application containerB) Implement SDNC) Run the application on a separate VLAND) Insist on an updated version of the application
Answer:
Use an application container.
Explanation:
Host operating system is software installed in a computer that interacts virtually with a server and also describes the difference between its software and a guest operating system.
It interacts with the hardware and works with atype 2 hypervisor which does not interact with the hardware but create virtual machine interfaces for multiple guest operating system to be installed, which are not necessarily the same as the host os.
Host os can also be used to describe operating systems that make use of container based virtualization. Containers are storage partitions used to hold applications separately on the same server, instead of replicating the operating system.
So with a container, Josh can separate the legacy application from other applications in the server.
Olivia manages wireless security in her company and wants completely different WiFi access (ie different SSID, different security levels, different authentication methods) in different parts of the company. What’s the best choice for Olivia to select in WAPs?
Answer:
The right answer is FAT WAP.
Explanation:
There are mostly two types of WAPs.
Fat WAP: Fat WAPs can be defined as an access point that can not be configured by switches. if the user uses multiple Fat AP then each Fat AP has to configured individually which means that it can give different SSID or passwords. Thin WAP: Thin WAPs can be defined as an access point which can be configured according to switch. which means Thin AP gives the same configuration while using multiple numbers.Hence according to the scenario, the most appropriate answer is FAT WAPs because it can be configured as a different WIFI set up in different parts of a company.
Test if a number grade is an A (greater than or equal to 90). If so, print "Great!". Sample Run Enter a Number: 98 Sample Output Great! Hint Grades may be decimals
Answer:
Using Python language :
a = eval ( input ( "Enter a mark please"))
if ( a <0){
print ("Invalid mark")};
else if (a >=90 && a <=100){ print
( "GREAT")};
Explanation:
The question is about writing a program to check if a number grade is an A by validating the score range and then categorizing it according to a grading scale. The program would likely involve conditional statements to compare the entered score against defined grade thresholds.
To test if a number grade corresponds to an A, a program must first verify that the entered score is within an acceptable range. For a score to be considered an A, it must be greater than or equal to 90 or within a specified range that correlates to an A in a given grading schema. In Python, such a program could look like this:
score = float(input("Enter a score between 0.0 and 1.0: "))The standard rules for rounding can also be applied accordingly within the program to ensure that grades like 89.5 are rounded to 90, hence considered an A.
The ___ value is the number of time units a programmed timer is programmed to count before timed contacts change state.
Answer:
Preset Value
Explanation:
The preset value is actually the number of time unit a programmed timer is being programmed for counting before the timed contact changes the state. And hence, its certainly the preset value the correct answer above. And remember the clock rate is defined by step function the time taken to reach 0 value from 1 is one time unit. Also, its the timed contact that changes the state, after the preset value is surpassed. And that is why its the timed contact, which means with fixed preset value.
Choose the type of attack that is based on entering fake information into a target network domain name server?
Answer:
DNS poisoning
Explanation:
DNS is a server service that verifies or resolves an IP address to a site or domain name. It's services is made available with a dhcp request from a client system, providing the ip address of the DNS server. The DNS server has the records of domain name linked to their individual ip addresses.
When an attacker wants a client to visit his site without knowing the site is not genuine, he gains access to the dns server and changes the information or poisons the entries of the server. So if the client tries to access that site, it takes him to the attackers site. This is called DNS poisoning.
Work AreaWhen creating a program in Visual Studio, the windows form object you are designing will appear in the _________ of the Visual Studio window.A. task areaB. work areaC. design areaD. form area
Answer:
Option B is the correct answer for the above question
Explanation:
In Visual studio, when a programmer designs the window form object then it can be seen by the user at the work area place of the visual studio. It is the place where a programmer can program and execute the program.In the visual studio there are two types of features, which can be useful for the programmer--
It can give the facility for coding.It can give the faculties to drag and drop.The above question also means the same which is described above hence Option B is the correct answer while the other is not because--
Option A states about the task area which is not for the coding.Option C states about the design area which is for drag and drop and there coding is automating generated.Option D states about form area which is not defined in Visual basic.____________ describes major components that comprise a system, their relationships, and the information the components exchange.
A. Web services
B. SOA
C. Cloud computing
D. Virtualization
E. None of the above
Answer:
SOA - service oriented architecture
Explanation:
SOA - service oriented architecture
software architecture is a system software structure and discipline in which relation between software elements is shown. This system show how structure developed same structure and show overview details of the system while hiding the classified details.
SOA is a system where interaction among different component is shown
Answer:c
Explanation:
Mike hands the hard drive containing suspicious content to the head of IT security at Bayland Widgets Co. The security guy requests a record of everyone who has been in possession of the hard drive. Given such a scenario, what document should Mike give the IT security chief?
Answer:
Chain of Custody is the correct answer to the following question.
Explanation:
Because chain of custody is that type of document which is gathered as the data from the scene, in other words it is an evidence which is collected/written during the investigation at crime scene and it is also known as the paper trail. And in the above question Mike handed the hard drive to the security chief that containing the important contents.
In the Windows command-line syntax, a directory is referred to by which character(s)?
Answer:
'\' is the correct answer for the above question.
Explanation:
In the windows command line '\' symbol is used for the directory. In any computer system, the hard disk is a large set of memory. so the user needs to partition to make one or more part and that part is known as a drive.
The drive is the most important part of the system so it is uniquely identified on the command line by the help of '\' symbol.
Just for example if a user wants to open the D drive in a window command line by pressing D: then the command line shows--
D:\>
Hence '\' is used to refer the directory in the windows command line. Hence the answer is '\'.
Which Google Analytics visualization compares report data to the website average?
A. Pivot viewB. Comparison viewC. Performance viewD. Percentage view
Answer:
B) Comparison View
Explanation:
Google analytics is equipped with visualization tools known as views for measuring analytical metrics. The Comparison View, is helpful for comparing data against each other on a website, This view by default will use the website's average score to compare against individual data point for a particular metric, however the compare to past feature can also be used to compare against history values.
The Comparison view in Goo-gle Ana-ytics is the visualization that compares report data to the website average, providing insights into individual segments of data in relation to the site's overall metrics. B is correct.
The Goo-gle Analytics visualization that compares report data to the website average is the Comparison view. This view allows users to see how individual segments of data compare to the site average across various metrics. For example, when analyzing user behavior, one can use the Comparison view to determine which pages perform above or below the site average in terms of metrics like session duration or bounce rate. Utilizing this view can help in identifying areas that require improvement or strategies that are working well.
It's important to present data in a context that accurately reflects the information at hand. Whether using bar graphs, line graphs, or pie charts, the visualization should give a clear and truthful picture of the data to make informed decisions. The Comparison view in Goog-le Analyt-ics is particularly useful in providing this context as it benchmarks data against the site average, offering a valuable perspective on performance.
A network design engineer has been asked to design the IP addressing scheme for a customer network. The network will use IP addresses from the 192.168.30.0/24 network. The engineer allocates 254 IP addresses for the hosts on the network but excludes 192.168.30.0/24 and 192.168.30.255/24 IP addresses. Why must the engineer exclude these two IP addresses?
Answer:
192.168.30.0/24 is the network IP address and 192.168.30.255/24 is the IP broadcast address.
Explanation:
The first IP (192.168.30.0/24) address of your subnet is the network address, the last IP (192.168.30.255/24) address of your subnet is your broadcast address and the available usable IP addresses in your subnet are subnet size -2, because network address and broadcast address cannot be allocated to a system.
The engineer must exclude 192.168.30.0 as it is the network address and 192.168.30.255 as it is the broadcast address, both of which are critical for network management and cannot be assigned to individual hosts.
An IP (Internet Protocol) address is a unique code used to identify devices on a network. The network the engineer is working on uses the 192.168.30.0/24 subnet, which corresponds to a block of 256 IP addresses ranging from 192.168.30.0 to 192.168.30.255.
However, within each subnet, two specific addresses are reserved and cannot be assigned to hosts:
192.168.30.0 is the 'network address' that identifies the subnet itself. It is used by routers and other networking equipment to determine the routing of packets.192.168.30.255 is the 'broadcast address' used for communication with all devices on the subnet simultaneously. Messages sent to this address are received by all devices in the subnet.These reserved addresses ensure effective network management and communication, preventing conflicts and ensuring that all devices can communicate efficiently.
When you send an echo request message with the ping program, a successful attempt will return a(n) ______ message.
Answer:
echo reply
Explanation:
It is a test that a user performs to confirm that remote system is up and running on the network. This is needed when basic connectivity failure problem appears. Internet Control Message Protocol renders 2 messages for this service which are Echo Request and Echo Reply. Echo Request is a request sent to a destination device. This system acknowledges with an Echo Reply message. Echo request is generated by destination system with PING program. Ping program is used for testing basic connectivity. An echo reply is sent by target system to the requesting system acknowledging that the echo request has been received.
Practice problems on functions. Write C function(s) to carry out the specified tasks. For each problem, also write the suggested application program(s) that apply the function. (1) Write a function multiPrint(int n, char c) that prints n copies of a character c.
Answer:
Function:
int fun(int n,char c) // function definition with a two argument in which variable n is a integer type and variable c is a character type.
{
while(n>0)// while loop
{
printf("%c",c); // print statement for character
n--; // decrease statement to false the loop.
}
return 0; //return statement.
}
output:
When the user pass n=5 and c='a', it will prints 5 times 'a' character.When the user passes n=10 and c='t', it will print 10 times 't' character.Explanation:
Firstly we declare a function of two arguments in which variable n is an integer type and variable c is a character type. Then in the function body, we use while loop from n times iteration because question demands to print n time any character.Then in the loop body, we use a print statement to print a character and a decrease statement to false the loop after a finite iteration.
Some systems provide a small amount of dedicated memory built into the CPU that maintains a record of previous choices for each of several branch instructions that have been used in the program being executed to aid in determining whether a branch is likely to be taken. What are the contents of this memory called.
Answer:
Option (B) i.e., branch history table is the correct answer to the following question.
Explanation:
In the above question, some part is missing i.e., options which are:
a) look-ahead table
b) branch history table
c) branch prediction table
d) future speculation table
Because the branch history table maintains the records of the previous data or information and instructions also that are used after when it needed in the program or any other fields and it is the table of the shift register. So that's why the following option is correct. it also used design to store the previous data in the shift register.
Quickly see the original bill from the Pay Bills window, select the bill and click the ________ button.
Answer:
The answer is "Go to bill".
Explanation:
In the question given, the Quickbook Enterprise app is used to view the original bill from the payment account window easily. We simply click on the "Go to account" button to display payments.
When we click the bill button, a wizard or prompt will be provided.This prompt contains the payroll log, and the specifics of the old payments are shown in this prompt.Time Machine in macOS creates full system backups that are known as _______________.
Answer:
local snapshots
Explanation:
Time machine local snapshots are a feature in macOS for restoring files.
When backup disk is full, time machine backup files on Mac and these backups are called local snapshots.
Time machine does this by using free spaces to take local snapshots, and automatically delete these backups as they age.
Time Machine local snapshot feature can be disabled by turning off "backup automatically" option.
With 2020 Kicks’ Easy-Fill Tire Alert, what happens when the correct pressure is reached during inflation?
Answer:
THE HORN SOUNDS when the correct pressure is reached during inflation with 2020 kicks' Easy-Fill Tire Alert
Explanation:
Properly inflated tires are able to save up to 11 cents per gallon on gas and extend a tire’s life by over 4,000 miles, but it’s hard to know when the tires are at the proper pressure. Luckily, Nissan’s Easy-Fill Tire Alert system will take away the guesswork and help fill tires to the correct pressure every time—without needing a handheld pressure device!
First, park your vehicle and apply the parking brake.
Leave the ignition on (accessory mode) but keep the engine off
As you start to fill a tire, the exterior lights will flash to indicate that the system is monitoring the change in pressure
Once the tire meets the correct pressure, the horn will go off to tell you it’s done
If the tire is over-inflated, the horn will sound again, and the hazard lights will flash 3 times to tell you that you need to release some air
Jeremy is designing a website for a local pizza place. What is the appropriate resolution for him to set his images to?
The appropriate resolution for him to set the image is 72 Pixels Per Inch
Explanation:
Image resolution is the highest and the standard quality in which the image must be and there are appropriate standard sizes to be displayed on each web pages
There standard size is set to be 72 pixels per inch and there are ways and the steps to be followed to optimize the images the name must be given in the plane language. The image dimensions and the product angles must be chosen wisely. The right type of file size must be chosen and there must be usage of thumbnails and image site maps
Assume the list numbers1 has 100 elements, and numbers2 is an empty list. Write code that copies the values in numbers1 to numbers2.
Answer:
numbers1 = [5]*100
numbers2 = numbers1[:]
print(numbers2)
Explanation:
We have used the Python programming language to solve this problem. First we created a list to have 100 elements line 1, numbers1 = [5]*100, This statement creates a list that has 100 elements (the integer 5). In line two, we assign the elements in the the first list to the second list numbers2, notice the full colon in the statement numbers2 = numbers1[:], This allows the elements of the first list to be copied into the second list and on line 3, we printout the the second list.
Final answer:
To copy values from one list to another in Python, you can use a for loop or a list comprehension, both methods will provide a separate copy of the original list.
Explanation:
To copy the values from numbers1 to numbers2 in Python, you can use a for loop or a list comprehension. Below are two examples of how this can be accomplished:
Using a for loop:numbers2 = []Both methods will create a separate list, numbers2, with the same values as numbers1, ensuring that the original list is not modified.
A _____ site gathers and organizes Web content, and may automatically downloads updates to subscribers.
A company website or a .com website could have content that might automatically download. I hope this helped.
Test out pc pro 6.0.5 You work at a computer repair store. You want to use the RAID feature on the mother board to configure two RAID arrays. You have installed five new SATA hard drives in the computer. You have installed Windows on the first drive, and you want to use the other four drives in your RAID arrays. In this lab, your task is to complete the following:______________________________. A) Configure RAID for the SATA drive mode. B) Define LD1 as a striped array using all of the space on two disks. C) Define LD2 as a mirrored array using all of the space on two disks.
Final answer:
To configure RAID arrays on the motherboard, enter the BIOS/UEFI settings, enable RAID for the SATA drive mode, create a striped array (RAID 0) using two disks, and create a mirrored array (RAID 1) using two disks.
Explanation:
To configure RAID arrays on the motherboard, follow these steps:
Enter the motherboard's BIOS or UEFI settings by pressing the designated key during startup.Locate the RAID configuration menu and enable the RAID feature for the SATA drive mode.Create a striped array (RAID 0) by selecting LD1 and configuring it to use two disks and all of their space.Create a mirrored array (RAID 1) by selecting LD2 and configuring it to use two disks and all of their space.Follow the on-screen prompts to complete the RAID configuration, save your changes, and exit the BIOS or UEFI settings.
Final answer:
To configure RAID arrays on your motherboard, you need to set the SATA drive mode to RAID in the BIOS, and then use RAID management software to define striped and mirrored arrays using the available disks.
Explanation:
To configure RAID arrays using the RAID feature on the motherboard, you need to follow these steps:
Enter the BIOS setup by pressing the appropriate key during startup (usually DEL or F2).Navigate to the SATA configuration menu and set the SATA drive mode to RAID.Save the changes and exit the BIOS setup.After booting into the operating system, open the RAID management software (such as Intel Rapid Storage Technology) provided by the motherboard manufacturer.Define LD1 as a striped array by selecting two disks and using all of their space. This will provide improved performance by splitting data across multiple drives.Define LD2 as a mirrored array by selecting two other disks and using all of their space. This will provide data redundancy and increased data security.Pressing ____ in the middle of a numbered list creates a new numbered paragraph and automatically renumbers the remainder of the list.
a.[Enter]
b.[Ctrl]
c.[Esc]
d.[Alt]
Answer:
Option a is the correct answer.
Explanation:
In an MS-WORD Document, when the user wants to write some line with the help of bullets or numbers then he needs to press enter when he had completed the first line and wants to proceed for the second line.
The question scenario also suggests the same which is described above. Hence Enter will fill the blank of the question statement. Hence Option 'a' is the correct answer while the other is not because--
Option b suggests about 'control' key, which is used to select or copy or cut if any other key is pressed with it.Option c suggests about 'ESC' key, which is an escape key used to escape some process.Option d suggest 'ALT' key, which is not used in MS-WORD Document for any purpose.Canada and the U.S. both produce wheat and computer software. Canada is said to have the comparative advantage in producing wheat if: a. Canada requires fewer resources than the U.S. to produce a bushel of wheat. b. the opportunity cost of producing a bushel of wheat is lower for Canada than it is for the U.S. c. the opportunity cost of producing a bushel of wheat is lower for the U.S. than it is for Canada. d. the U.S. has an absolute advantage over Canada in producing computer software
Answer:
The answer is B.
Explanation:
In terms of economics, there is "Absolute Advantage" and "Comparative Advantage".
Absolute Advantage is used when someone is the best at a certain task than someone else, they have the absolute advantage.
Comparative Advantage does not work quite the same, you don't have to be the best at something, if you can produce the same product or results at a lower cost, you have comparative advantage.
And in the option B, it says that Canada is said to have comparative advantage if the opportunity cost is lower for Canada than it is for the US. Opportunity cost is the amount that it costs for someone to produce something and if you have lower opportunity cost, you can have the comparative advantage without having a higher production rate.
I hope this answer helps.
In the software development process, when should a design review be conducted?
a. at the completion of the projectb. at the same time as the code reviewc. as the functional and design specifications are being developed based on the requirementsd. during verification
Answer:
C. as the functional and design specifications are being developed based on the requirements
Explanation:
SDLC (software development life cycle) is the process from abstract design of an application to deployment of the functional application. There are six stages in the development life cycle of an application, They are;
Planning : this is the feasibility study of the needs the application is meant to solve.Analysis: in this stage, the client prior problems and best solution are written down.Design: this stage gives a graphical design of the application with focus on the problems it is meant to solve. Prototyping and wireframing technologies are used.Development: In this stage, lines of code are written, debugged, tested and continually reviewed.The other stages are deployment and maintenance.
Final answer:
A design review in software development is best conducted during the development of functional and design specifications to ensure alignment with project requirements and constraints, allowing for necessary refinements.
Explanation:
A design review in the software development process should be conducted as the functional and design specifications are being developed based on the requirements. It is crucial to ensure that the design aligns with the project requirements and constraints before moving forward. Testing and evaluation may reveal weaknesses or areas for improvement in the design, prompting refinements to better meet the criteria.