Answer:
blocking ransomware
Explanation:
Ransomware is a malware used for money extortion. This malicious software locks the computer and data files by encrypting the data which cannot be decrypted by the user.This malware exploits the vulnerabilities in your computer and infects your computer with ransomware and it starts again even after rebooting the computer.A ransomware message appears on the computer screen which shows some instructions that you need to follow in order to get back access to your blocked computer just as in this scenario, the blocker ransomware acts to be a software publisher and displays a message that the software license has expired and $500 is demanded to get back the control of the computer.As a result the user cannot be able to use the computer or its resources until he pays the demanded money.A(n) ________ network is a computer network that spans a relatively small area, allowing all computer users to connect with each other to share data and peripheral devices, such as printers.
A) enterprise
B) wide area
C) campus area
D) local area
E) value-added
Answer:
D) local area
Explanation:
Is a computer network that links devices within a building or group of adjacent buildings, especially one with a radius of less than 1 km.
A 'local area' network is a small-scale network for connecting devices to share resources and data, commonly enabled by Wi-Fi technology, which can be managed by connection software or mobile VPNs for secure connectivity.
Explanation:A local area network is a computer network that spans a relatively small area, allowing all computer users to connect with each other to share data and peripheral devices, such as printers. Connection manager software or a mobile VPN can be utilized to manage multiple connections securely. Wi-Fi is a supporting technology for LANs, allowing portable computing devices to connect to the Internet with speeds approaching wired Ethernet. It is often used in homes, offices, and public hotspots, and can be a paid or free service depending on the business model.
Shania has started a new job as an app developer. Her first task was to make an old app designed for Android available on other platforms. Which of the following would make her job easiest and fastest?
A. Develop different versions of the same app for different programs.B. Use cross-platform tools to write code that will translate the existing Android app code into different native formats.C. Feed the existing code into cross-platform tools to develop different versions of the same app.D. Use the same set of codes for different platforms.
Answer:
B. Use cross-platform tools to write code that will translate the existing Android app code into different native formats.
Explanation:
Cross-platform application development tools are tools that can be used tool generate applications of different platforms, by just writing a single type of code. It has the ability to automatically create an application of a different platform from another.
A developer can develop an application like Android and convert it to IOS for Apple. Xamarin, Appcelerator coroner etc, are all examples of cross-platform tools.
If our list called List is populated as [0, 1, 2, 3, 4], what happens if our code tries to access List [5] per the rules of the AP Computer Science Principles Reference Guide?
Answer:
The number 4 will be returned.
Explanation:
Given;
List = [0, 1, 2, 3, 4]
Using the AP Reference Guide;
The first element has an index of 1 and can be accessed using the same. i.e
=> List[1] = 0
The second element has an index of 2 and can be accessed using the same. i.e
=> List[2] = 1
Therefore, if our code tries to access List[5], then the number at index 5 will be returned. i.e
=> List[5] = 4
This implies that the last number 4 will be returned.
Note: Many programming languages (such as Java) actually start their collection (array, list) index from 0 rather than 1. But since we are using the AP Computer Science Principles Reference Guide, the index has to start from 1.
The art of secret writing that enables an individual to hide the contents of a message from all but the intended recipient is called ________.a. Steganography
b. Cryptanalysis
c. Cryptography
d. Key management
Answer:
The answer is "Option c".
Explanation:
Cryptography is a process, in which by using code we encrypt information and communication to be read and processed by only those expected, and the explanation of given option, that were not correct can be described as follows:
In option a, It is a process that encrypts data within the file, that's why it is not correct.In option b, It is used for text encryption, that's why it is not correct.In option d, It is a protocol which uses keys for encryption, that's why it is not correct.Congress is debating a proposed law to reduce tax rates. If the current tax rate is r%, then the proposed rate after x years is given by this formula: r 1 1 1 1 x . Rewrite this formula as a simple fraction.
Answer:
[tex]\frac{x+1}{2x+1}r%[/tex]
Explanation:
Congress is debating a proposed law to reduce tax rates. If the current tax rate is r%, then the proposed rate after x years is given by this formula: r 1 1 1 1 x . Rewrite this formula as a simple fraction
The formula can be rewritten as thus [tex]\frac{r}{1+\frac{1}{1+\frac{1}{x} } } \\\\\ 1+\frac{1}{x} \\\frac{x+1}{x} we have \\\frac{1}{x+1/(x)} \\\frac{x}{x+1} \\1+\frac{x}{x+1} \\\frac{2x+1}{x+1}[/tex]
r%*x+1/(2x+1)
[tex]\frac{x+1}{2x+1}r%[/tex]
What have simply done is to find the LCM of the lowest fraction at the bottom of the relation , then solve upward
compress into proper fraction. I then normalized by brionging the numerator downward and the denominator upward
There are certain parameters that administrators set (within a group policy or otherwise) to assist users in creating sufficiently unguessable and uncrackable passwords. One such parameter is complexity. To enforce the use of a range of complexity, what else must an administrator enforce to ensure that complex passwords are used?
Answer:
administrator must enforce a specific password length minimum
Explanation:
Based on the information provided within the question it can be said that in order to ensure that complex passwords are used the administrator must enforce a specific password length minimum. By placing a minimum on password length you are making sure that the password has a certain complexity and thus making it a lot harder for those passwords to be cracked by hackers.
Jason is using TCPdump to capture traffic on his network. He would like to review a capture log gathered previously. What command can Jason use?
Answer:
tcpdump -r capture.log
Explanation:
Based on the information provided within the question it can be said that the command that will allow Jason to do this would be the following : tcpdump -r capture.log . This command (like mentioned in the question) will allow provide Jason with previously captured network traffic logs in order for him to be able to thoroughly review those logs.
Suppose your cell phone carrier charges you a monthly fee of $30.00 for up to 300 minutes and $0.45 for each additional minute after the first 300. Assuming you used your phone for x minutes with x > 300, the total monthly fee would be?
If you used your phone for <= 300 minutes then the charge is $30.00 Assume the user enters a positive value for the number of minutes
30 + (x -300) * .45ç correct answer
Use the following template
A = 300 #CONSTANT fee for <= 300 minutes
m = int(input("Enter the number of minutes "))
c = 0 # initialize cost variable
if (m>300): # minutes>300
# calculations here to compute the solution above
# use the correct answer provided
print(" the cost for ", m, " minutes is ", c )
else: # here m is <= 300# s <= 0
print(" the cost for ", m, " minutes is ", A )
Answer:
# 30 + (x -300) * .45ç correct answer
A = 30 #CONSTANT fee for <= 300 minutes
m = int(input("Enter the number of minutes "))
c = 0 # initialize cost variable
if (m>300):
c = 30 + ((m - 300) * 0.45) #Cost when the minute is greater 300
print("The cost for ", m, " minutes is $",c )
else:
print("The cost for ", m, " minutes is $",A )
Explanation:
c = 30 + ((m - 300) * 0.45) #Cost when the minute is greater 300
First 300 is subracted from the given minute to get the extra minute, and then the extra minute is multiplied by $0.45 after which it is added to the constant of $30 for the 300 minutes
When people use Web browser software to become part of the Web, their computers become Web client computers on a worldwide client/server network.
A. True
B. False
Answer:
A. True.
Explanation:
The internet or the world wide web (www) is a global network of interconnected networks. It has a wide range of dedicated servers, intermediate network devices like routers and switches, and end devices to access data.
The website is a collection of web pages hosted on web servers on the internet. Web browsers are application softwares used by end devices to request for web pages. There are two types of network connection, peer to peer and client/server connection.
The peer to peer network involves computers serving as client ( requesting for data) and server (transmit data) at the same time. The client/server network one has a dedicated server that transmits data and a client that request for data.
This makes computer running web browsers, clients to web servers on the internet.
Consider an application that transmits data at a steady rate (for example, the sender generates an N-bit unit of data every k time units, where k is small and fixed). Also, when such an application starts, it will continue running for a relatively long period of time.
Suppose that a packet-switched network is used and the only traffic in this network comes from such applications as described above. Furthermore, assume that the sum of the application data rates is less than the capacities of each and every link. Is some form of congestion control needed? Why?
Answer:
No
Explanation:
Because every link can handle the sum of the application data rate even when everyone is using the application ate the same time (worst scenario), there won't be any congestion to control. Because we have a good link capability the network doesn't require any congestion control mechanism.
Note: When trying to solve this kind of problems always keep in mind the worst scenario, if the network is capable of withstanding the worst scenario and no information about the scalability of the network is given then you don't need congestion control.
What is the starting point for a DHCP server?
Establishing a pool of addresses
Establishing A and AAAA records
Establishing address leases
Establishing reservations
Answer:
Establishing a pool of addresses
Explanation:
Regularly the first and the final IP address is configured automatically, but we can personalize these IP addresses, always that is the first step when we activate the DHCP server.
Then we must assign a time for the use of the IP in seconds, we enter the IP in the primary DNS, the second is optional, and we enter the domain name.
In the Linux Bash shell, the ____ key combination deletes the content of the command line from the current cursor position to the end of the command line.A. Ctrl+bB. Alt+dC. Ctrl+kD. Ctrl+a
Answer:
C. Ctrl+k.
Explanation:
The bash shell is a command processor interface in Linux operating system as a default login shell. There are other versions for operating systems like Windows and Mac OS. A user can input a plain text command to the command line interface and use different key combinations to initiate different action.
The key combination used to delete the content of the command line from the position of the cursor is the Ctrl+k combination.
When the computer is started, a bootstrap or IPL (Initial Program Load) begins testing the system. Where is this bootstrap program stored? A) RAM B) ROM C) Hard drive D) Virtual memory
Answer:
The correct answer to the following question will be Option B (ROM).
Explanation:
Bootstrap is the programming which initializes the OS during initialization. The bootstrap loader creates small operator programs that connect and monitor the various computer hardware components.
ROM is Read-only memory, which will be used to hold a computer's start-up commands, also recognized as firmware.
No other method was used to help save system startup. ROM, then, is the right answer.
Final answer:
The bootstrap program, necessary for starting the computer and initiating the operating system loading process, is stored in ROM (Read-Only Memory), not in RAM, hard drive, or virtual memory.
Explanation:
When the computer is started, a bootstrap or Initial Program Load (IPL) begins testing the system. This bootstrap program is stored in ROM (Read-Only Memory). Unlike RAM (Random Access Memory), which is volatile and requires power to maintain its data, ROM is non-volatile and retains its data even when the computer is powered off.
This makes ROM an ideal storage medium for the bootstrap program, as it needs to be reliably accessed whenever the computer is powered on to start the operating system loading process. RAM is used as working memory for the CPU, storing data temporarily while the system is running, but not suitable for storing the bootstrap program due to its volatile nature.
In the context of Web server performance evaluation, _____ is testing that is used to compare the performance of hardware and software.
Answer:
Benchmarking.
Explanation:
Web servers are platforms used in networking to provide resources for websites and software applications. Every end devices in a network request for website resources and applications from Web servers.
To maintain these resources, web server performance must be evaluated to prevent unexpected downtime of the server. One way of evaluating web server performance is the benchmarking test.
The benchmarking test is used to compare the performance of the hardware and software of the server system.
Given a string variable named "myString" of length 5, how could you access the first character and last character using a numeric index?
Answer:
The first index myString[0]
The last index myString[4]
Explanation:
Indexing starts at "0". so the first character in a string will be at index "0" and the last character will be at index "-1". But since we were given the length of this string to be 5, we know that the index of the last character will be "4".
The python code bellow will print character at the first and last index:
myString = "hello"
print("The First Index is "+myString[0])
print("The Last Index is "+myString[-1])
A user is claiming a host can be reached via the IP address but not through the name. What should a technician do first to resolve the problem?
Add an entry to the HOSTS file
Restart the client device
Restart the DNS server
Restart the DNS service
Answer:
Add an entry to the HOSTS file
Explanation:
A file that is used to add the host name along with their IP addresses is called Host file. In this file all the IP addresses are mapped with their respective host names. Whenever some user tries to access some website, he may use the name of website to access it. The website have both name and IP address of the server, both of these information stored in host file. On GUI the user only see the information of Host name.
If some user only access the IP address of the website instead of the host name. The technician should add the name and IP address of the host in Host file. He should follow the following steps to resolve the problem.
Access the host file by following the given path of file in Windows operating system.open the host file edit the file with new host name and relevant IP address save the changesAssume the market for DVD movies is initially at equilibrium. A decrease in the price of streamed movies, a substitute for DVD movies, will __________ the equilibrium price and ___________ the equilibrium quantity of DVD movies.
Answer:
The answer is "decrease; decrease".
Explanation:
DVD movies are used to short and a digital portable digital video, It uses a disc that stores much more data as compared to CD.
It is widely used for films and other data storage and display. It decreases the streaming video costs, as substitution for DVD videos, would increase the average demand and high the surplus in DVD films.Danielle is looking for information on an accounting principle for class. She does not want to sift through a lot of information to find it, but wants to know the exact location. What area of the CRS results will she look at?
a) sections
b) topic
c) paragraph
d) subtopics
Answer:
Correct answer is (c) paragraph
Explanation:
Paragraph contained all the necessary information that Danielle is needed. Its enables one to identify and source for information easily.
The __________ supports the primary system components (such as the CPU and RAM) necessary for all digital electronics devices such as 1. desktop PCs2. notebook PCs3. mobile phones4. iPads4. servers
Answer:
Computer System unit.
Explanation:
The computer system unit holds all the other components together and protect them outside elements. The components include motherboard, CPU, hard drive, RAM, video card and power supply.
You have been asked to implement enterprise software for a manufacturer of kitchen appliances. What is the first step you should take?
Answer:
Option E i.e., Select the functions of the system you wish to use is the correct answer.
Explanation:
In the above statement, some part of the question is missing that is options.
The first step is taken by the user is that they have been select those methods of the computer system which he wants to use firstly if he has to implement the software or an application for that manufacturers who sales the appliances of the kitchen. Then, it is necessary to take the following steps by the user according to its needs.
Match each type of software license with the appropriate definition.
Each answer choice is used only once.
Part A
1. Software distributed for a multitude of users
2. Software you must purchase before using
3. Software distributed with a limited license
4. Software distributed free of charge
Part B
a. Freeware
b. Shareware
c. Network
d. Buyware
Answer:
1- Software distributed for a multitude of user: network
2- Software you must purchase before using: buyware
3- Software distributed over a limited license: shareware
4- Software distributed free of charge: freeware
Explanation:
The software which we have to buy before using it is called buyware. The software which is only provided to the people who have lisence to use it, is called shareware. The software which can be used by many users is called the network. software which can be used without purchasing is called freeware.
Software licenses can be categorized based on how the software is distributed and used. Freeware refers to software that is distributed free of charge, while shareware is distributed with a limited license. Network software is distributed to a multitude of users, and buyware requires a purchase before use.
Explanation:Part A:
Software distributed for a multitude of users - NetworkSoftware you must purchase before using - BuywareSoftware distributed with a limited license - SharewareSoftware distributed free of charge - FreewarePart B:
a. Freeware - Software distributed free of chargeb. Shareware - Software distributed with a limited licensec. Network - Software distributed for a multitude of usersd. Buyware - Software you must purchase before using
Incident damage ____ is the rapid determination of the scope of the breach of the confidentiality, integrity, and availability of information and information assets during or just following an incident.
Answer:
The answer is "assessment"
Explanation:
In the given question some information is missing, that is options that can be described as follows:
a) containment strategy.
b) assessment.
c) incident response.
d) disaster assessment.
Assessment also known as community risk, which is used for evaluations. It played a crucial role in the reaction and recovery after a dangerous incident in any organization.
In this process, the Information of the degree and the position, which is lost are included in the collected information by the Accident investigation Taskforce. This data is analyzed to evaluate the needs of members and the entire community, and other choices are wrong that can be described as follows:In option a, It is a part of world war II, that's why it is wrong.In option c, It is a method that is sort major incident, that's why it is wrong.In option d, It uses cost control and risk avoidance, that's why it is wrong.This is a control structure that causes a statement or group of statements to repeat.
a. decision statement
b. constant loop
c. cout object
d0 None of these
Answer:
B. Constant Loop
Explanation:
Looping involves going over a block of code or statement infinitely or over a particular number of times. There are a number of loops, such as the infinite loop, while loop, do-while loop among others.
Infinite loop: All loops are expected to terminate after a few iterations, however, if that block of code is not available, the loop is said to be an infinite loop. This is because it will iterate continuously and indefinitely.
While loop: Also referred to as a Pretest loop, because before the statements are executed in its body, it verifies the boolean expression.
Do-while loop: Also referred to as a Posttest loop, because it tests the boolean expression after the block or statement is executed.
Answer:
D. None of these
Explanation:
The control structure that causes a statement or a group of statements to repeat is called a control loop, or simply, a loop.
In many programming languages, a loop contains a group of statements that are executed repeatedly based on a certain criterion (or condition). As long as this condition is true, the statements within the loop are executed.
Three types of control loop structure are the for, while and do...while loops.
You are capturing packets with a network sniffer and notice a number of packets that are flagged by the sniffer and described as TCP retries. Which layer of the OSI model should you investigate?
Answer:
Transport Layer
Explanation:
Transport layer is responsible for correcting data transmission errors which is done by requesting retries also called re-transmission of packets in case of data loss or corrupted data.Transport layer ensures end to end delivery of data making sure that the data is received correctly and in same order in which it was sent.Transmission Control Protocol (TCP) is a protocol in this layer that continues to transmit data packets securely from sender to receiver, identifying packet losses. Transport layer works on packet loss issues and corrects data transmission errors.It has flow control and error control services manage data transmission rate and ensures data is received without error. So in case of transmission errors and re-transmission requests transport layer should be investigated.Which of the following types of servers can be used to cache requested Internet resources so that they can be more quickly delivered to users requesting the same resource while at the same time reducing the burden on the external network connection to the Internet for an organization?
a. file serverb. DNS serverc. DHCP serverd. proxy server
Answer:
Proxy Server
Explanation:
Proxy server is a server that acts as a mediator between two systems.One system can be your computer and the other can be the server to which you are asking a service, such as requesting a web page.Lets suppose you request a web page from a server and you type a URL of a website to access a web page.This request goes to proxy server which sends this request on your behalf to the target server in order to retrieve that web page.Proxy server makes this request to the target server on the internet by using one of its IP addresses.When the proxy server gets that web page, it will forward that web page to your requesting computer.If you request a specific service such as a website frequently the proxy server saves that website on its cache.So if you request that website again, proxy server will forward it to you from its cache rather than requesting it again from the target server on your behalf resulting in quick response to the user's request. This speeds up the delivery of resources to the users.Proxy servers provide users with privacy to access the websites, and they can surf the internet anonymously .How can the security information and event management system in a SOC be be used to help personnel fight against security threats?
Answer:
i think its A.
Explanation:
:)
In order to create strong neural networks (connections) in your brain, you've got to __________ the learning process.
A. participate actively in
B. read about
C. remember
D. listen to a lecture about
Answer:
A. Participate actively in
Explanation:
The brain starts to develop even before a child is born and continues into adulthood. During the first few first years of a child's life, neurons, synapses and axon are multiplied to millions. The child's learning process determines the neural connections to be cut off by pruning. An active connection is retained while inactive neurons, synapses and axons are eliminated.
As the child grows, neural connections are strengthened by active participation in the learning process. But when these connections are left idle, they tend to decay.
Final answer:
Actively participating in the learning process by using elaborative rehearsal, the self-reference effect, distributed practice, and repeated rehearsal creates strong neural networks. Employing mnemonic devices and sensory inputs enhances cognitive learning and the formation of semantic networks.
Explanation:
To create strong neural networks in the brain, one must participate actively in the learning process. Active participation encompasses techniques such as elaborative rehearsal, which involves deeply processing and linking new information to other information and memories, making it more meaningful. Employing the self-reference effect by making the material personal, using distributed practice to space out learning, and engaging in repeated rehearsal to ensure information moves from short-term to long-term memory are all strategies that contribute to stronger neural connections.
Other essential strategies include creating mental images, utilizing mnemonic devices, and engaging in activities that stimulate cognitive learning. This could involve drawing connections to past experiences, utilizing various sensory inputs, or creating visual representations to aid comprehension. It is important to note that memory techniques such as mnemonic devices, like acronyms and acrostics, can be particularly helpful for recalling information. Ultimately, the more connections one forms to a concept, the better they can remember it, as per the theory of spreading activation.
Which key or key sequence pressed during the boot process will allow a user to start a Windows PC using the last known good configuration?
Answer:
F8
Explanation:
In Windows PC (e.g Windows 7), Last Known Good Configuration, is an option that helps users to start up their PC if it doesn't start normally. This option is only accessible at boot process by using the keyboard (mouse will not work at this point). So to access this option, the F8 key is pressed repeatedly or held down. This will display some start up menus where the user can use the arrow keys to access the option.
Based on the current economic situation do you expect the employment demand for graduating engineers to increase or decrease? Explain the basis for your answer.
With a significant economic recovery, what do you think will happen to future enrollments in graduating engineering programs?
Answer: the employment demand would increase.
Explanation:
Several factors affect the employment demand especially in a field as peculiar as engineering, the cumulative build up of unemployed graduates and the skill set required to fit into the present working structure is also of Paramount importance. The evaluation method for recruitment seeks to function based on this rationale by selecting a few amongst many.
Final answer:
The economic situation points to an increase in employment demand for graduating engineers, tied to economic recovery and the trend of higher job growth for those with more education. Future enrollments in engineering programs are expected to increase with economic recovery. Countries like China and India have a high number of engineering graduates, reflecting their focus on technology and industry.
Explanation:
Based on the current economic situation, the employment demand for graduating engineers is likely to increase as economies recover from downturns and companies start to expand and invest in new technologies and infrastructure. This is supported by the trend that higher levels of education, including engineering degrees, are associated with higher job growth rates. For instance, those with a bachelor's degree have job growth expectations of 17 percent.
With a significant economic recovery, enrollments in graduating engineering programs are also expected to rise. This is because students may perceive engineering as a field with strong job prospects, which can lead to more secure and well-paying positions. Therefore, during economic recoveries, the allure of a promising career in engineering could attract more students to these programs.
In the context of global engineering graduates, countries with the most graduates can be indicative of their prioritization of technical education and their industrial and technological sectors' requirements. For example, countries like China and India have high numbers of engineering graduates due partly to their large populations and emphasis on engineering as a driver of economic growth.
Desktop computers, laptops, tablets, smartphones and other devices are made by different companies, yet they are all able to access the Internet. This has led to widespread use of the Internet from many different kinds of devices.Which of the following makes this possible?
Answer:
Open standards and protocols.
Explanation:
A network is the platform on which two or more devices can share resources. The laptops, desktops, tablets, smartphones and other devices are end devices in a large wireless network called the internet.
They are able to communicate wireless, though they are of different brands and specifications. The information technology has evolved to promote this interconnection of devices by introducing open standards and protocols for generally agree use, rather than proprietary standards of individual companies that will not communicate.
The OSI and TCP/IP suite model of networking has been generally accepted by most companies (if not all) as the standard of communication.