According to the reports of the user, the PC displays a warning message. According to the displayed message, the PC is infected by a virus. The technician's USB drive is equipped contains malware detection and removal program.
Explanation:
Before inserting the USB drive and running the program, the technician should examine the displayed message and try to determine the source of the message.
Before putting the malware detection and removal program to work, the technician should make sure that there are no other factors and sources causing problems in the PC. Asking the user about any past similar encounters will be a plus.
What the technician do before running the program is to quarantine the virus or format the flash drive.
What is PC that displays a warning message?A warning message are known to be brief or quick messages that often pop up to inform users of some issues with a system.
They are said to be displayed at the beginning of programs or operating systems, or when a person is said to be accessing public Web sites. This message is often shown when running the program that have virus attached to it and so one should quarantine the virus or format the flash drive.
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A technician installs a new piece of hardware and now needs to add the device to the network management tool database. However, when adding the device to the tool using SNMP credentials, the tool cannot successfully interpret the results. Which of the following ....
Answer:
Configure Management information base (MIB).
Explanation:
Management information base is a virtual database used to hold the details of individual devices in a network. The SNMP uses this database to collect details of a device, to record to its credentials.
There are several extensions of MIB like OID, object identifier, which are used for specific reasons but are all under MIB.
When configured, the MIB automatically collects the information of devices in the network, but SNMP and RMON 1 depends fully on it to collect and interpret details of device.
The constructor signature is defined as the constructor __________ followed by the __________.
a. name, parameter list
b. name, return type
c. definition, body
d. definition, parameter list
e. header, body
Answer:
The constructor signature is defined as the constructor name followed by the parameter list.
Explanation:
In object oriented programming, a class constructor is a special method that will run automatically whenever a new object is created from the class. The constructor name is same with the class name. Besides, the class constructor is often used to initialize the attributes with initial values. Those initial values are held by the parameter list of the constructor.
One example of the constructor defined in a Java class is as follows:
// class name
public class BankAccount {
// attribute names
private String holder;
private double amount;
// constructor name
public BankAccount(String holder, double amount) // parameter list
{
this.holder = holder;
this.amount = amount
}
}
Write a loop to populate user_guesses with num_guesses integers. read integers using int(input()). ex: if num_guesses is 3 and user enters 9 5 2, then user_guesses is [9, 5, 2].
Answer:
num_guesses = 3 #initialized number of guesses to 3
user_guesses = [] #declared the user_guesses array
guess = 0 #guess variable initialized to 0
print('Enter a number: ') #prompt telling the user to enter a number
while guess < num_guesses: #loop capturing input and storing into array
num = int(input())
user_guesses.append(num)
guess = guess + 1
#end of loop
print(user_guesses) #array outputted to user
Explanation:
The above program captures numbers from the user and stores into an array (user_guesses), the length of the array is determined by the value contained in the num_guesses variable, it prints the combined input as an array.
Loops are code statements that are used to repetitive statements.
The loop in Python where comments are used to explain each line is as follows:
#This gets input for the number of guesses
num_guesses = int(input())
#This initializes a list for user guess
user_guesses = []
#The following is repeated
for i in range(num_guesses):
#This gets input for the guess
num = int(input())
#This adds the guess to a list
user_guesses.append(num)
#This prints all the guesses by the user
print(user_guesses)
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Google Ads was designed to deliver three things to every advertiser: relevance, control, and results. It provides relevance by connecting advertisers with the right people at the right time. It provides results by charging only when you get a click. How does Google Ads provide control?
A) By giving advertisers control over the number of specific actions their spend will return
B) By giving advertisers control over which competitors they place ads in auctions against
C) By giving advertisers control over the next highest bid allowed in auctions they enter
D) By giving advertisers control over the maximum they spend per month.
Answer:
D) By giving advertisers control over the maximum they spend per month.
Explanation:
Google Ads provides advertisers with control over their budget. They choose how much to spend per day, per month and per ad as well as where and how they want to spend. Smart campaign technology allows advertisers to create, oversee, and optimize their campaigns to get benefit from investment. Google Ads lets advertisers set a daily limit on how much of their budget is spent to show their ad and averages daily limit over entire month to restrain their campaign from spending more than expected. Google Ads optimizes advertising strategy and helps in getting the best outgrowth for the business. Google Ads is used in achieving business goals for both big and small advertising budgets.
Suppose that you declare a class named Furniture that contains a string field named woodType and a conventionally named property with a get accessor. When you declare an array of 200 Furniture objects named myChairs, which of the following accesses the last Furniture object's wood type?a. Furniture.Get(woodType[199])b. myChairs[199].WoodType()c. myChairs.WoodType[199]d. myChairs[199].WoodType
myChairs[199].WoodType is the following accesses the last Furniture object's wood type
d. myChairs[199].WoodType
Explanation:
An array often has the size range of [0- n-1] where n is number of cell for array. For example, when the array has a size of 5, its index starts from 0 and ends at n-1 ie 4.
So according to the question, the array myChairs is an array of objects declared from the class Furniture. Its index starts from 0 and the last object is at 199. So to access the last object’s WoodType, the following accesses it:
myChairs[199].WoodType.
The logical structure in which one instruction occurs after another with no branching is a _____.
a. case
b. loop
c. sequence
d. selection
Answer:
Option(c) i.e "sequence " is the correct answer for the given question.
Explanation:
In the sequence, the statement or instruction is executed in the sequence manner i.e one after another. In the sequence structure, the instruction is executed in the predetermined order and no instruction are skipped sometimes the sequence structure takes too many times when they are more instruction in a single module.
For Example : Following are the program in c++ of sequence control structure
#include<iostream.h> // header file
using namespace std; // namespace
int main() // main method
{
int a=100; // variable declaration
c=a+100;
cout<<c; // display c
return(0);
}
Output:100
In the above program the instruction a=100,c=a+100 and display c is executed in the sequence manner.
In the Option(a),Option(b) and Option(d) instruction are not executed in one after another so these are incorrect answers.
What technology enables you to run more than one operating system at the same time on a single computer?
Answer:
The answer is "Virtualization".
Explanation:
Virtualization is processed to create a virtual system. It is the creation of the virtual version of something, that is the operating system, computer, storage device or resources.
Virtualization allows IT organizations to run more than one virtual system on a single server. It depends on software for hardware emulation and virtual computing device development.
What unique key is known only by the system and the person with whom the key is associated?
Answer:
Public key is the key known by the system and the person associated with the key.
Explanation:
The other type of key called Private/Secret key is known only to the person who owns the key.
What percentage of users who do not own a Zero UI device were comfortable with an algorithm learning their behaviour?
Answer:
This requires a percentage of people with zero UI device, and how many of them are comfortable with it. The rest can be calculated. However, since it is not given, as an assumption, one should note that more and more people are going to have it, but in the beginning, only a few out of them will be comfortable with it at the start, as it is a new technology.
Explanation:
It's important to understand what is a Zero UI device. This means a touchless UI experience. The era of the touchscreen is going to vanish soon hence, and computers will be able to understand our feelings and gestures. Our gestures will drive the computers now, and that is going to be a new style of UI in the computer world. The era has not yet arrived, but you might soon find that era starting, and at the beginning, people will find it hard though with time they will start feeling comfortable with it.
Eamon wants to provide a discount to premium buyers who order in large quantities. He wants to create a code for each price and share it with them. Also, he wants to ensure that only the premium buyers can decipher the code shared. In this scenario, which of the following codes would you suggest Eamon to use?
A. Cipher code
B. Mnemonic code
C. Action code
D. Derivation code
Answer:
The correct answer for the following question will be A. Cipher code.
Explanation:
Cipher code:
Ciphers are potentially the cryptographic central pillar. A cipher is usually an algorithm to perform both encryption and decryption.
Secret key encryption relies on the use of symmetric ciphers. Whether the goal is to convert plaintext to ciphertext and vice-versa. The secret key is shared on both ends, and the person having the secret key can only encrypt and decrypt the data.
So, option A is a suitable answer.
An application needs to calculate sales tax for purchases. You decide to simplify the code by putting the sales tax calculation in a function. The returned value from the function is then added to the Subtotal, and the result is stored in the decTotal variable. Which of the following statements will call the GetSalesTax function and return a value to be used in the Total calculation?a.) decTotal = decSubtotal + GetSalesTax()b.) decSubtotal + GetSalesTax(decSubtotal)c.) decTotal = decSubtotal + GetSalesTax(decSubtotal)d.) decTotal = decSubtotal + GetSalesTax(decSubtotal As Decimal)
Answer:
Option C: decTotal = decSubtotal + GetSalesTax(decSubtotal)
Explanation:
To get sales tax, we need a function can process a subtotal amount and return the tax values. By presuming GetSalesTax() is a function that will return a tax value, this function will expect decSubtotal as the input parameter to the function. Otherwise, there will be no values processed in the function.
The statement decTotal = decSubtotal + GetSalesTax(decSubtotal) will invoke function GetSalesTax() by passing decSubtotal as argument. Next the return value of the function will be added with decSubtotal and the summation amount assigned to the variable decTotal.
Which standard is used to configure digital signature settings for e-mail and contacts from the corporate address book, depending on how the corporate e-mail server is set up?
Answer:
The correct answer for the given question is "s/mime standard".
Explanation:
The s/mime standard is a secure multipurpose standard that is used for the encryption of the public key. This standard provides the security and it is used in the configuring digital signature for the setting of emails.
The main advantage of s/mime standard is to provide the linear way to send and received the data of MIME. This standard id used to protect the emails from unwanted access.
Explain the significance of the Battle of the Ironclads, the Monitor and the Merrimack.
Answer:
The significance of the naval battle between the two ironclads brought about new development in the naval warfare, signaling the end of wooden warships
Explanation:
The battle of the ironclads between the Monitor and the Merrimack occurred on March 9, 1862 which was the first naval battle between ironclad warships. The battle which was inconclusive due to the fact that no much damage was effected on the two warships.
The significance of the naval battle between the two ironclads brought about new development in the naval warfare, signaling the end of wooden warships.
What did major networks do to combat audience erosion in the 1990s?
1. They threatened not to allow cable operators to carry any of their programming.
2. They started making edgier and more controversial programming.
3. They acquired cable channels. They acquired cable operators.
4. None of the options are correct.
Answer: I think is 3. They acquired cable channels. They acquired cable operators.
Explanation:
A type of GPO filtering that uses queries to select a group of computers based on certain attributes, and then applies or does not apply policies based on the query’s results.
Answer:
WMI filtering is the correct answer.
Explanation:
The following answer is correct because it is the type of the GPO filtering of the Ms windows operating system that aims on the some properties of the targeted computer system and it also provide the information of the local and the remote systems and it also applies on the policies of the quarries results or output.
What do you enter at the command prompt to prevent the shell from using to much of the systems resources?
Answer:
Ulimit is the correct answer for the above question.
Explanation:
The Linux operating system is a system on which a user can work on multiple programming system. If a user is working on multiple programs then he needs to set the limit for the system resources so that the system can not access so many resources for any particular program and he can able to access multiple programs. For this a user needs to use the Ulimit command which syntax is as follows--
ulimit [-A] (Where A can be any of them (a, b, c, d, e, f, H, i, l, m, n, p, q, r, s, S, t, T, u, v, x) which refers the type of and units of resources.)
The question asked about the command which is used to prevent to use many of the system resources, then the answer is Ulimit command which is described above.
You have a critical database server that constantly backs its files up to the cloud, but its software environment is so finicky that if it encountered a critical failure it would take a long time to get it working again. How would you describe your recovery plan for that service
Answer:
Low RPO and High RTO is the correct answer to the following question.
Explanation:
Because RPO is referred to the Recovery Point Object and RTO is referred to as the Recovery Time Object, these both are the disaster recovery which recovers your lost data from the computer. RTO is used in companies, organizations or schools, etc. In other words, RTO is used on a large scale for recovery and RPO is used in small scale or homes, etc.
The throws clause of a method: a. specifies the exceptions thrown by the calling method. b. specifies the exceptions a method throws. c. specifies the exceptions a method throws and catches. d. specifies the exceptions a method catches.
Answer:
Option B
Explanation:
On the Loan worksheet, in cell C9, enter a PMT function to calculate the monthly payment for the Altamonte Springs 2022 facilities loan. Ensure that the function returns a positive value and set the references to cells B5 and B6 as absolute references.
Answer:
Microsoft Excel, pmt function.
Explanation:
Microsoft Excel is a spreadsheet application used to manipulate and analyse data. It has several functions and tools to work with. An excel workbook can contain multiple worksheets. It has columns (or field) labelled alphabetically and also numbered rows ( or record).
The PMT function is a financial function used to calculate the periodic payment of loans. It's syntax is;
=PMT(interest rate increase, loan period, loan amount).
For example, if the interest rate increase is annual, and the value is a cell B7, the input would be B7/12. If the value of the loan period and amount are referenced in cells B6 and B5 respectively, the function would be ;
=PMT(B7/12, B6, B5).
But this will give a negative result. For positive result;
=PMT(B7/12, B6, -B5)
Now to make excel pick values from a specified group of cells, they are made absolute by adding the '$' to the columns and rows.
=PMT($B$7/12, $B$6, -$B$5).
The result would positive values spanning to twelve months with interest rate.
To calculate a loan's monthly payment in Excel using the PMT function, enter '=PMT($B$5/12, B6*12, -B4)' in cell C9. This will yield a positive value for the monthly payment with the annual interest rate and loan term set as absolute references.
To calculate the monthly payment for the Altamonte Springs 2022 facilities loan, you need to use the PMT function in Excel. Follow these steps:
Click on cell C9 to make it active.Enter the formula: =PMT($B$5/12, B6*12, -B4), where $B$5 refers to the annual interest rate, B6 to the term in years, and B4 to the loan amount. Using absolute references for $B$5 and $B$6 ensures these references do not change if the formula is copied elsewhere.Press Enter to see the calculated monthly payment displayed as a positive value.Remember, the PMT function helps manage financial calculations efficiently in Excel, ensuring accurate loan payments computations.
The leading membranophone in "Kan andi ghazal" is the ________. (If you can not access the audio file here, please go to modules
Answer:
Tabl Baladi
Explanation:
The Tabl Baladi is a large drum with wood frame and heavy skin on both sides. It is hung by a belt around the player's shoulder is and played with two sticks: the thick one is for the dum sound played with the dominant hand, and the thin stick is for the tak sound played with the other hand.
It is mostly used in classical Arab (Middle Eastern) music. Kan Andi Ghazal is a song by the Lebanese musician Wael Jassar.
A workstation has been moved from headquarters to a branch office. The user is now reporting that the workstation cannot connect to the network. A technician suspects that the workstation did not correctly obtain an IP address from a DHCP server. What are two possible causes for the problem?
Answer:
1. DHCP may be blocked by a firewall software
2. Static IP assigned to the workstation
Explanation:
DHCP refers to the The Dynamic Host Configuration Protocol (DHCP) it is used to automatically assign IP addresses to every device on a computer network. Through the DHCP server, computers request IP addresses as well as other parameters for the network needed for communication, and directly obtain them from the internet service provider (ISP). If this service is block by a firewall software it could be a reason why the workstation is unable to connect to the network. Configuring a static IP address rather than allowing automatic assignment of IP addresses could also lead to this problem
An absolute cell reference changes the cell references when the formula is copied to a new location.
a) true
b) false
Answer:
False
Explanation:
In Microsoft Excel or Google Sheet, an absolute cell reference is a cell address that won't be changed even the formula is copied to a new location.
Absolute cell reference is always used whenever a formula is expected to be consistently referred to a particular cell. To create an absolute cell reference, we can simply preceded the row or column or both with the dollar sign $.
For example:
=$A$3 - $B$3
What is a ""software process""? Provide examples of fundamental activities related to this term.
Answer:
A process that is used to represent the set of phases of work which are applied to build and design a product-related software, known as Software Process.
Explanation:
There are especially four types of fundamental activities related to the software process, these are as follows:
Software specification: The process of defining what type of functions are required for identifying the limitations over the development of the system.System validation: Involves the checking and testing of the software process step by step. It usually has three testing process, such as:System testingUnit testingAcceptance testingSystem implementation: Through the designing of the computer, this process is used for converting the system specification into a system which is capable of being executed.System evolution: The process which repeatedly updates the system and develops initially.Unit testing: Select one:
a. includes all the preparations for the series of tests to be performed on the system.
b. tests the functioning of the system as a whole in order to determine if discrete modules will function together as planned.
c. involves testing the entire system with real-world data.
d. provides the final certification that the system is ready to be used in a production setting.
e. tests each program separately.
Answer:
e. tests each program separately.
Explanation:
Unit testing -
It is one of the software testing where the individual units are tested , is referred to as unit testing.
The focus of this step is to scan each and every unit separately and thoroughly so as to avoid any type of damage or malfunctioning .
Hence, from the question, the correct statement for unit testing is e. tests each program separately.
When Web users enter the URL www.CIWcertified.com in their browser address bar, they can access the official CIW Web site at the IP address 72.44.192.233. Which technology enables users to do this, instead of having to remember and enter the IP address?
A. HTTP
B. TCP/IP
C. DNS
D. HTML
Answer:
The correct answer to the following question will be C. DNS.
Explanation:
DNS stands for Domain Name System, users able to find any information with the help of the domain name. Each and every device which are connected to the internet has there owned IP address, DNS is a system used to translate the domain names into the IP address so it will find the information or browsers can load the resources of the internet.
So by entering the domain name instead on an IP address can also browse the information for any user. And other options like HTTP (Hypertext transfer protocol), HTML (Hypertext markup language) and TCP/IP (Transmission control protocol / Internet protocol) can't help any user for accessing the work done by the DNS.
Your computer only boots with a bootable DVD. It is not able to boot without a bootable DVD. What could be the possible reasons for this problem?
It could mean that your SSD or HHD is fried.
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Amy has just added a 462 meter run of fiber optic cable to the network. What should she do next?
Answer:
test the installed cable
Explanation:
Based on the information provided within the question it can be said that the next step that Amy should take would be to test the installed cable. One of the most performed tests is called an Insertion Loss test. This is done with light source and power meter (LSPM) or optical loss test set, and tests to make sure that the information is travelling through the cable correctly and that no loss occurs in transit.
Your company has a connection to the internet that allows users to access the internet. You also have a web server and an email server that you want to make available to the internet users. You want to created a DMZ for these two servers. Which type of device should you use to create the DMZ?
Answer:
Network based firewall
Explanation:
A delimitarized zone or perimeter networks is a configuration used to create organisation site platform to unauthorised user. A copy of the companies local network is insecure, like a decor to analysed for beach in network to enhance security.
A firewall is a device used to prevent access to network by non members of a company.
When a DMZ is configured to the internet, a network based firewall ( next to the exit router) is configured to stop access to the company's main local network.
The nth harmonic number is defined non-recursively as: 1 +1/2 + 1/3 + 1/4 + ... + 1/n. Come up with a recursive definition and use it to guide you to write a function definition for a double -valued function named harmonic that accepts an int parameters n and recursively calculates and returns the nth harmonic number. this is for myprogramminglab.com this is what i have double harmonic(int n) { int sum =0; if (n>0) { sum=sum+(1/(harmonic( n-1))); } return sum; }
Answer:
See the code below.
Explanation:
The nth armonic number is obtained from the following induction process:
[tex]a_1 = 1[/tex]
[tex]a_2 = 1+\frac{1}{2}=a_1 +1[/tex]
[tex]a_3 = 1+\frac{1}{2}+\frac{1}{3}=a_2 +1[/tex]
And for the the n term we have this:
[tex]a_{n-1}=1+\frac{1}{2}+\frac{1}{3}+....+\frac{1}{n-1}[/tex]
[tex] a_n = 1+\frac{1}{2}+\frac{1}{3}+......+\frac{1}{n}=a_{n-1}+\frac{1}{n}[/tex]
In order to create a code for the ne term we can use the following code using python:
# Code to find the nth armonic
# Function to find n-th Harmonic Number
def armonicseries(n) :
# a1 = 1
harmonic = 1
# We need to satisfy the following formulas:
# an = a1 + a2 + a3 ... +..... +an-1 + an-1 + 1/n
for i in range(2, n + 1) :
harmonic += 1 / i
return harmonic
##############################
And then with the following instructions we find the solution for any number n.
n = 3 # thats the number of n that we want to find
print(round(armonicseries(n),5))
Recursive functions are functions that execute itself from within.
The harmonic sum function in Python, where comments are used to explain each line is as follows:
#This defines the function
def harmonic_sum(n):
#This returns 1, if n is less than 2
if n < 2:
return 1
#If otherwise,
else:
#This calculates the harmonic sum, recursively
return 1 / n + (harmonic_sum(n - 1))
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Match each of the following steps of SDLC development to its position in the development process.
I. development
II. design
III. analysis
IV. testing and installation
V. problem/opportunity identification
A. first step
B. second step
C. third step
D. fourth step
E. fifth step
Final answer:
The SDLC steps are matched as problem/opportunity identification as first, analysis as second, design as third, development as fourth, and testing and installation as fifth. The design process is iterative, often involving prototyping, testing, and refinement.
Explanation:
The steps of the Software Development Life Cycle (SDLC) can be matched to their positions in the development process as follows:
Problem/Opportunity Identification - A. first step
Analysis - B. second step
Design - C. third step
Development - D. fourth step
Testing and Installation - E. fifth step
The SDLC is a structured methodology used for the development of software systems and involves several stages from initial problem identification through to the final deployment and maintenance of the solution. In the design process, after evaluating solutions and selecting the best design, as in the example of choosing a solar still for desalination, the team develops a detailed design through prototyping, testing, and refinement. This approach is typically iterative, sometimes referred to as a spiral design process, and may require several iterations as prototypes are created, tested, and reviewed to enhance the design.