The questions below are still based on the Technical Help Desk System case study in Question 2. Q.3.1 As stated in the case study, all the databases on Postgres including the back-ups should be encrypted. Discuss the importance of encryption, and distinguish between encryption and decryption in computer security. Q.3.2 The case study has numerous use cases and detailed information about use case is described with a use case description. List any four aspects of a use case covered in a use case description.
Q.3.3 In today's interconnected world, systems need reliable access control systems to keep the data secure. List and define the three elements that access control systems rely on. Q.3.4 Discuss two things you would take into consideration when designing the interface for both Web and Mobile.
Answers
Encryption is essential for securing databases, and it distinguishes between encryption and decryption in computer security.
Encryption plays a vital role in computer security, particularly when it comes to securing databases. It involves converting plain, readable data into an encoded format using cryptographic algorithms. The encrypted data is unreadable without the appropriate decryption key, adding an additional layer of protection against unauthorized access or data breaches.
The importance of encryption lies in its ability to safeguard sensitive information from being compromised. By encrypting databases, organizations can ensure that even if the data is accessed or stolen, it remains unreadable and unusable to unauthorized individuals. Encryption also helps meet regulatory compliance requirements and builds trust with customers by demonstrating a commitment to data security.
In computer security, encryption and decryption are two complementary processes. Encryption involves scrambling data to make it unreadable, while decryption is the process of reversing encryption to retrieve the original data. Encryption algorithms utilize encryption keys, which are unique codes that allow authorized individuals or systems to decrypt and access the encrypted data.
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Related Questions
9. With each element of the list defining both a key exchange algorithm and a CipherSpec, the list that contains the combination of cryptographic algorithms supported by the client in decreasing order of preference is the __________ .
Answers
The list that contains the combination of cryptographic algorithms supported by the client in decreasing order of preference is the CipherSuite.
What is CipherSuite?CipherSuite can be defined as a group of instructions used to produce network connections in a secure manner.
CipherSuite is associated with Transport Layer Security, which involves the usage of algorithms to protect data.
Transport Layer Security can be defined as a computational cryptographic protocol aimed at protecting information.
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At what point of a project does a copy right take effect?
Creation
Publishing
Research
Brainstorming
Answers
Provides an array of buttons for quick access to commonly used commands and tools
A. scroll bar
B. tool bar
C. status bar
D. menu bar
Answers
Answer:Tool bar
Explanation:
The toolbar is said to provide an array of buttons for quick access to commonly used commands and tools. Through the toolbar, one can easily access the commands that are commonly used.
We can see the toolbar in several software like the graphics editor, office suites, and browsers.
You have $5 and earn $1.75 for each roll of wrapping paper you sell. Write an equation in two variables that represents the total amount A (in dollars) you have after selling r rolls of wrapping paper
Answers
Answer:
A = 5 + 1.75r
Explanation:
Amount you have = $5
Earning per roll of wrapping paper = $1.75
Let
r = number of rolls of wrapping paper
A = Total amount earned
A = 5 + 1.75r
Equation that represents the total amount A (in dollars) you have after selling r rolls of wrapping paper is
A = 5 + 1.75r
You have two Windows Server 2016 computers with the Hyper-V role installed. Both computers have two hard drives, one for the system volume and the other for data. One server, HyperVTest, is going to be used mainly for testing and what-if scenarios, and its data drive is 250 GB. You estimate that you might have 8 or 10 VMs configured on HyperVTest with two or three running at the same time. Each test VM has disk requirements ranging from about 30 GB to 50 GB. The other server, HyperVApp, runs in the data center with production VMs installed. Its data drive is 500 GB. You expect two VMs to run on HyperVApp, each needing about 150 GB to 200 GB of disk space. Both are expected to run fairly disk-intensive applications. Given this environment, describe how you would configure the virtual disks for the VMs on both servers.
Answers
The virtual disk configuration for the VMs on both servers in this environment is shown below.
In the Hyper V Test,
Since there will be two or three virtual machines running at once, each of which needs between 30 and 50 GB of the total 250 GB of disk space available,
What is virtual disks?Setting up 5 virtual disks, each 50 GB in size.
2 VMs each have a 50 GB virtual drive assigned to them.
The above setup was chosen because running three VMs with various virtual disks assigned to them will not pose an issue when two or three VMs are running concurrently and sharing the same virtual disk. This is because the applications are disk-intensive.
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Given this environment, the virtual disk configuration for the VMs on both servers is shown below. Because two or three VMs will be running at the same time, and each VM has disk requirements ranging from 30 to 50 GB of total disk space of 250 GB.
What is Hyper V Test?While there are several methods for testing new virtual machine updates, Hyper-V allows desktop administrators to add multiple virtual machines to a single desktop and run tests. The Hyper-V virtualization technology is included in many versions of Windows 10. Hyper-V allows virtualized computer systems to run on top of a physical host. These virtualized systems can be used and managed in the same way that physical computer systems can, despite the fact that they exist in a virtualized and isolated environment. To monitor the utilization of a processor, memory, interface, physical disk, and other hardware, use Performance Monitor (perfmon) on a Hyper-V host and the appropriate counters. On Windows systems, the perfmon utility is widely used for performance troubleshooting.Therefore,
Configuration:
Creating 5 Virtual disks of 50 GB each.
1 virtual disk of 50 GB is assigned to 2 VM.
The above configuration is because since two or three VM will be running at the same time and using the same virtual disk will cause a problem since the applications are disk intensive, running three VMs with different virtual disks assigned to them, will not cause a problem.
For Hyper V App,
Two VM will run at the same time, and the disk requirement is 150 - 200 GB of 500 GB total disk space.
Configuration:
Creating 2 virtual disks of 200 GB each with dynamic Extension and assigning each one to a single VM will do the trick.
Since only two VMs are run here, the disk space can be separated.
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The most important hardware device for connecting supercomputers over a wide area
Answers
Answer:
Hel
Explanation:
I think that they are:
Processors: Super computers posses tens of thousands of processors for performing billions of intensive computations on a single second.Memory: Supercomputers feature high volumes of memory, which allows the unit to access information at a given time.you are implementing a soho network for a local business. the isp has already installed and connected a cable modem for the business. the business has four computers that need to communicate with each other and the internet. the isp's cable modem has only one rj45 port. you need to set up the network within the following parameters: you must spend as little money as possible. you must not purchase unnecessary equipment. computers need to have a gigabit connection to the network. new devices should not require management or configuration. you examine each computer and notice that only one of the four computers has a wireless nic. they all have ethernet nics. what should you purchase?
Answers
The router will give the company the ability to set up a local network, grant internet access, and enforce security regulations.
A wireless network on a workplace should be developed in the fictitious scenario. All of the offices in the building have wifi networks. Before installing a wireless network once more for SOHO, you should perform a wireless site reconnaissance. This poll can be used to identify the network nodes (AP) that are located in the most beneficial locations. it is the MOST likely approach to recover internet connectivity, the SOHO router should be configured for NAT. The SOHO network is given the power to link or connect any devices to it by turning on NAT on the router. As a result, the Most probable method of regaining internet connection is to configure the SOHO network for NAT.
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In CSS, how would you select all the tags on a page?
Choose 1 answer:
Answers
To select all the tags on a page using CSS, you can use the universal selector (*). The universal selector matches any element type, so applying a style rule to it will affect all the elements on the page.
Here is an example:* {
/* CSS styles */
}
In the above code, the asterisk (*) selects all the elements on the page, and the CSS styles within the curly braces apply to all those elements.
Keep in mind that applying styles to all elements on a page using the universal selector can have unintended consequences and potentially affect the performance of your website. It's generally better to be more specific with your selectors whenever possible
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X = "apple"
y = X
z = "banana"
print(x
+
+
y + "\n" + z)
What is output?
Answers
pede po bang pa pic ang gulo po Kasi ehh
notice that the cells in the lower left half of the table are blank. why?
Answers
The cells are left blank to avoid duplication of information already presented in the upper right half of the table.
Why are the cells in the lower left half of the table blank?The cells in the lower left half of the table are blank because they represent the values that have already been covered in the upper right half of the table.
In many cases, tables are organized in a way that presents information efficiently and avoids repetition. Since the information in the lower left half is the same as that in the upper right half but in a different order, it is not necessary to duplicate it.
By omitting these cells, the table remains concise and easier to read. Additionally, leaving the cells blank allows for easier identification and comparison of the unique values in the table.
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The following describes which sources of potential risk: The software programming team is supposed to begin work in two months. The team has already been hired, but half of the team does not yet have their security clearance, and will not be able to start work on site until they do.
Answers
External conditions and demands, administration and security, logistics, as well as other variables, security and integration of human systems .
What does introductory programming entail?If you're searching for a simple and even enjoyable computer language to learn first, Python is always advised. Python reads plain English and is easy to grasp for someone who is new to programming, as opposed to having to dive right into rigid syntax restrictions.
How challenging is programming?It is public knowledge that programming is one of the most hard challenges to master. It is not difficult to understand why some people find it challenging to learn how to code given how different it differs from conventional educational methods, including college degree programs in computer science.
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Which office setup would be difficult to host on a LAN?
hardware.
RAM.
storage.
software.
Answers
The office setup would be difficult to host on a LAN is option C: storage.
What is the office LAN setup like?A local area network (LAN) is a network made up of a number of computers that are connected in a certain area. TCP/IP ethernet or Wi-Fi is used in a LAN to link the computers to one another. A LAN is typically only used by one particular establishment, like a school, office, group, or church.
Therefore, LANs are frequently used in offices to give internal staff members shared access to servers or printers that are linked to the network.
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since 1989, central savings bank has tried to use new technologies to expand the services it offers to its customers. for example, depositors can obtain updated financial information about their accounts and handle certain types of transactions whenever they wish simply by visiting the bank's website and providing a user name and password. the type of technology central savings bank uses to provide these services is known as
Answers
It is to be noted that the type of technology central savings bank uses to provide these services is known as "Information technology" (Option C)
What is information technology?The use of computers to generate, process, store, retrieve, and share various types of data and information is known as information technology. IT is a component of information and communication technology.
In its most basic form, the word IT (Information Technology) refers to any work that involves the use of a computer. IT refers to the use of technology in a company to crunch data and solve business problems, as well as to expedite and manage procedures.
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Full question:
Since 1989, Central Savings Bank has tried to use new technologies to expand the services it offers to its customers. For example, depositors can obtain updated financial information about their accounts and handle certain types of transactions whenever they wish simply by visiting the bank's website and providing a username and password. The type of technology Central Savings Bank uses to provide these services is known as
Multiple Choice
data processing.
systems processing.
information technology.
knowledge processing.
your computer has a single hdd formatted with ntfs with the following data folders: c:\documents c:\pictures you create a new child folder under the c:\documents folder. what term describes the permissions the new folder automatically attains from the c:\documents folder? question 20 options: a) explicit permissions b) allow permissions c) inherited permissions d) deny permissions
Answers
The term that describes the permissions the new folder automatically attains from the C:\Documents folder is "inherited permissions". Option C is correct.
Inherited permissions refer to the permissions that are passed down from a parent folder to its child folders and files. When a new folder is created under a parent folder, the new folder inherits the permissions of the parent folder by default.
This means that the users or groups that have permissions to access the parent folder will also have permissions to access the new folder, unless those permissions are explicitly changed.
In this case, since the new folder was created under the C:\Documents folder, it will inherit the permissions of the C:\Documents folder, including any users or groups that have been granted access to that folder.
These inherited permissions can be modified to restrict or grant access to specific users or groups as needed. So option C, inherited permissions is correct choice.
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All the following are the basis of the World Wide Web except:
Web browser programs
Infrastructure
Web servers
HTML
Answers
Answer:
Web browser programs
Explanation:
Web broswer programs arent very important because they arent being used to maintain the servers or contail the contents of all the sites, they are only used by people to easily view the world wide web without using advanced commands in a terminal to view sites. all the other selections are very important when it comes to maintaining the entirety of the internet.
Answer:
web browser'
Explanation:
he wants to customize the operating system to meet his needs. what types of tools should he use, and what can he do with each?
Answers
Answer:
remastering iso image
Explanation:
you can add the gui, default installed program, etc
Select all the correct answers.
Which two tasks does a geologist perform?
prepares scaled drawings of construction sites for clients
operates large machinery to create clothing and rugs
investigates the formation process of rocks
measures earthquakes and tsunamis using seismographs
constructs skyscrapers with the assistance of various contractors
Reset Next
Answers
measures earthquakes and tsunamis
A ____________ is a collection of infected IT devices that an attacker or attack group controls.
Answers
The following code causes an infinite loop. Can you figure out what’s missing and how to fix it?
def count_numbers(first, last):
# Loop through the numbers from first to last
x = first
while x <= last:
print(x)
count_numbers(2, 6)
# Should print:
# 2
# 3
# 4
# 5
# 6
Answers
Answer and explanation:
The infinite loop is being caused by the lack of an increment statement for the variable `x` inside the while loop. To fix the code, you need to increment the value of `x` by 1 during each iteration of the loop.
Here's the corrected code:
```python
pythondef count_numbers(first, last):
pythondef count_numbers(first, last): # Loop through the numbers from first to last
pythondef count_numbers(first, last): # Loop through the numbers from first to last x = first
pythondef count_numbers(first, last): # Loop through the numbers from first to last x = first while x <= last:
pythondef count_numbers(first, last): # Loop through the numbers from first to last x = first while x <= last: print(x)
pythondef count_numbers(first, last): # Loop through the numbers from first to last x = first while x <= last: print(x) x += 1
pythondef count_numbers(first, last): # Loop through the numbers from first to last x = first while x <= last: print(x) x += 1count_numbers(2, 6)
pythondef count_numbers(first, last): # Loop through the numbers from first to last x = first while x <= last: print(x) x += 1count_numbers(2, 6) # Should print:
pythondef count_numbers(first, last): # Loop through the numbers from first to last x = first while x <= last: print(x) x += 1count_numbers(2, 6) # Should print:# 2
pythondef count_numbers(first, last): # Loop through the numbers from first to last x = first while x <= last: print(x) x += 1count_numbers(2, 6) # Should print:# 2# 3
pythondef count_numbers(first, last): # Loop through the numbers from first to last x = first while x <= last: print(x) x += 1count_numbers(2, 6) # Should print:# 2# 3# 4
pythondef count_numbers(first, last): # Loop through the numbers from first to last x = first while x <= last: print(x) x += 1count_numbers(2, 6) # Should print:# 2# 3# 4 # 5
pythondef count_numbers(first, last): # Loop through the numbers from first to last x = first while x <= last: print(x) x += 1count_numbers(2, 6) # Should print:# 2# 3# 4 # 5# 6
pythondef count_numbers(first, last): # Loop through the numbers from first to last x = first while x <= last: print(x) x += 1count_numbers(2, 6) # Should print:# 2# 3# 4 # 5# 6```
Adding `x += 1` inside the while loop will ensure that the value of `x` increases by 1 during each iteration, preventing the infinite loop and making the code work as intended.
why is it important for a network architect to work in the office
Answers
The Link Layer in the TCP/IP Model corresponds to the and Layers of the OSI Reference Model. A) Transport; Physical. B) Physical; Data Link.
Answers
The link layer in the TCP/IP Model corresponds to the Transport and Physical layer of the OSI Model.
What is link layer?The Internet protocol suite, or IOS, is the networking architecture of the Internet, and the link layer is the lowest layer in computer networking. The set of procedures and communication standards specific to the link to which a host is actually connected is known as the link layer.
The link is the logical and physical network component that connects hosts or nodes in the network, and a link protocol is a set of guidelines and rules that only apply to the next-to-next network nodes in a network segment.
The link layer is sometimes described as a combination of the OSI's data link layer (layer 2) and physical layer, despite the fact that the Internet protocol suite and OSI model have different definitions of layering (layer 1).
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What is the importance of farm record keeping?
Answers
Answer
Farm record keeping is one of the important aspects of farming that can make or mar a farm enterprise.
Explanation:
Farm record keeping is one of the important aspects of farming that can make or mar a farm enterprise. Farm record is a document meant to keep details of every event within the farm; procurement details, cost and revenue, sales records, and other events that need to be captured in simple farm records for the sake of making productive decisions.
Create a C++ program using arithmetic operators to compute the AVERAGE of THREE (3) QUIZZES and display the score and average on different lines.
The output should be similar to this:
Answers
using the knowledge in computational language in python it is possible to write a code that using arithmetic operators to compute the average of three quizzes and display the score and average on different lines.
Writting the code:#include <iostream>
using namespace std;
int main()
{
float n1,n2,n3,n4,tot,avrg;
cout << "\n\n Compute the total and average of four numbers :\n";
cout << "----------------------------------------------------\n";
cout<<" Input 1st two numbers (separated by space) : ";
cin>> n1 >> n2;
cout<<" Input last two numbers (separated by space) : ";
cin>> n3 >> n4;
tot=n1+n2+n3+n4;
avrg=tot/4;
cout<<" The total of four numbers is : "<< tot << endl;
cout<<" The average of four numbers is : "<< avrg << endl;
cout << endl;
return 0;
}
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one security component that doubles as a network component
Answers
Answer:
is the sentence above the question?
Answer:
It is to enter the site and then it will protect you in terms of form and appearance, and so on as required
Select the correct answers.
Which are the benefits of leveraging web technologies?
processing of large amounts of data
more manpower
better marketing and customer service
increased production costs
difficulty in handling customer complaints
Answers
Answer:
Explanation:
Select the correct answers.
Which are the benefits of leveraging web technologies?
1) Processing of large amounts of data
2) Better marketing and customer service
when you inspect your device's rechargeable battery, you notice there is a slight bulge in the case. what should you do?
Answers
If a problem is present, replace the battery. Purchase a new battery if your current one becomes damaged, or if you notice it becoming extremely hot or losing its charge quickly.
If there is even the slightest hint of swelling, turn off your device and take it to a service center. It is useless to wait for the battery to "shrink." The entire gadget may become damaged as a result of the increasing pressure. Only if the device is stuck, keep the battery inside. Many people forget to unplug their phones' chargers after charging them overnight, which inflates their batteries. The solution is to charge your smartphone during the day and put it in sleep mode with low volume at night. The battery needs to be changed right away, even if your smartphone still functions. It may be hazardous to use the equipment or leave it powered on. Take caution. A swollen lithium-ion battery's casing is under stress and is vulnerable due to the accumulation of gases.
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A mechanic uses a screw driver to install a ¼-20 UNC bolt into a mechanical brace. What is the mechanical advantage of the system? What is the resistance force if the effort force is 5 lb.
Answers
Answer:
15.7 ; 78.5
Explanation:
Mechanical advantage of a screw = Circumference / pitch
Circumference = pi × d
Where :
pi = 3.142, D = diameter
Therefore ;
Circumference = 3.142 × (1/4) = 0.785 in
Pitch = 1/TPI
TPI (thread per inch) = 20
Pitch = 1/ 20 = 0.05
Mechanical advantage = 0.785 / 0.05 = 15.7
Resistance force if effort force is 5lb
Mechanical advantage = Fr / Fe
Fe = effort force, Fr = resistance force
15.7 = Fr / 5
Fr = 15.7 × 5 = 78.5 lbs
What do I need to know about using Proctorio?
Answers
P/roctorio is an online remote proctoring tool that some educational institutions use to help prevent bad things during online exams. If you are going to be using Procto/rio, there are a few things that you should keep in mind:
What is the use of Proctorio?Others are:
Installation: Before you take your exam, you will need to install the Pro/ctorio extension. Make sure to do this well in advance of your exam so that you have time to troubleshoot any issues that may arise.
Privacy: Proct/orio is designed to monitor your activities during an exam to ensure that you are not cheating.
Lastly, Practice: Many institutions offer practice exams that use Proctorio. If this is available to you, take advantage of it so that you can become familiar with how the tool works before you take a real exam.
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if the sas documentation looks like this: statement or keyword <(options)>; you should place your option select one: a. in parentheses after the keyword b. you can't use options here c. directly after the keyword d. after a forward slash
Answers
If the SAS documentation looks like this: statement or keyword <(options)>; you should place your option in parentheses after the keyword. Option a.
SAS (Statistical Analysis System) is a program used for data management, business intelligence, advanced analytics, documentation and predictive analysis.
It was created by the SAS Institute in 1960. The SAS language is a programming language used to manage and analyze data in the SAS environment. It includes several components that are designed to work together to perform a wide range of analytical tasks.
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Some clues left on a drive that might indicate steganography include which of the following?
a. Graphics files with the same name but different file sizes
b. Multiple copies of a graphics file
c. Steganography programs in the suspect's All Programs list
D. All of the above
Answers
Some clues left on a drive that might indicate steganography include option D: All of the above.
a. Graphics files with the same name but different file sizes.
b. Multiple copies of a graphics file.
c. Steganography programs in the suspect's All Programs list.
What is steganography?Steganography is a technique for concealing sensitive information within a regular, non-sensitive file or message so as to avoid detection; the sensitive information is then extracted at its intended location. To further conceal or protect data, steganography can be used in conjunction with encryption.
Hence, Steganography is the practice of enclosing openly available information inside of something that seems normal. Steganography is a technique used by cybercriminals to conceal malicious code or stolen data in media like images and audio files.
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