Based on the given information, we can conclude that the learning rate α = 0.01 is suitable for this problem.
Gradient descent is an optimization algorithm used to minimize the cost function J(θ) in machine learning. The learning rate α determines the step size at each iteration of the algorithm. If the learning rate is too high, the algorithm may overshoot the minimum point and fail to converge. On the other hand, if the learning rate is too low, the algorithm may take a long time to converge.
In this case, we are told that the cost J(θ) decreases slowly but keeps decreasing after 20 iterations of GD. This suggests that the algorithm is still making progress towards the minimum point, and the learning rate is not too high. If the cost were increasing or oscillating after 20 iterations, we could conclude that the learning rate is too high.
Therefore, we can conclude that the learning rate α = 0.01 is suitable for this problem and we should continue to run the algorithm until convergence.
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Amber is a hacker who steals information when people enter their personal details on specific websites. She intercepts the public key as it is sent from the Web server to the Web browser and substitutes her own public key in its place. This enables her to intercept the communication and decrypt the symmetric encryption key using her private key.
In the case above, the type of hacking attack is Amber perpetrating is option b. A man-in-the-middle attack.
What is a person in the middle attack?A man-in-the-middle (MiTM) attack is known to be a form of a type of cyber attack where the attacker is known to often and secretly intercepts and pass messages that occurs between two parties who think they are communicating directly with one another.
Hence, In the case above, the type of hacking attack is Amber perpetrating is option b. A man-in-the-middle attack.
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Amber is a hacker who steals information when people enter their personal details on specific websites. She intercepts the public key as it is sent from the Web server to the Web browser and substitutes her own public key in its place. This enables her to intercept the communication and decrypt the symmetric encryption key using her private key.
Which type of hacking attack is Amber perpetrating?
a. A denial-of-service attack
b. A man-in-the-middle attack
c. A drive-by attack
d. A malware attack
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Consider the following method. public boolean checkIndexes(double[][] data, int row, int col) { int numRows
The variable declaration and initialization, that appears in a method in the same class as checkIndexes is checkIndexes(table, 4, 5).
What is declaration of a variable?Declaration of a variable is known to be a function or work that is seen in computer programming language.
This is known to be a form of a statement that is known to be often used to state or specify the variable in regards to its name and that of its data type.
Note that the Declaration is known to be one that informs the compiler about the presence of an entity in that program and where one can find it.
Hence, The variable declaration and initialization, that appears in a method in the same class as checkIndexes is checkIndexes(table, 4, 5).
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Consider the following method.
public boolean checkIndexes(double[][] data, int row, int col)
{
int numRows = data.length;
if (row < numRows)
{
int numCols = data[0].length;
return col < numCols;
}
else
{
return false;
}
}
Consider the following variable declaration and initialization, which appears in a method in the same class as checkIndexes.
double[][] table = new double[5][6];
Which of the following method calls returns a value of true ?
A checkIndexes(table, 4, 5)
B checkIndexes(table, 4, 6)
C checkIndexes(table, 5, 4)
D checkIndexes(table, 5, 6)
E checkIndexes(table, 6, 5)
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Which types of attacks are thwarted by complex passwords that are combinations of upper and lower case letters, numbers, and special characters
The types of attacks that are known to be thwarted by complex passwords that are combinations of upper and lower case letters, numbers, and special characters are said to be Brute Force Attacks.
What is Brute Force Attacks?
This is known to be an attack that is said to be a very crude type of attack and it is often seen as a brute-force attack.
Note that is one that does not depend on lists of passwords, but it is one that often tries all the very possible combinations of permitted character types.
Hence, this type of attack was known to be historically seen as ineffective, and it is said to be The types of attacks that are known to be thwarted by complex passwords that are combinations of upper and lower case letters, numbers, and special characters are said to be Brute Force Attacks.
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How can you reduce the likelihood of wps brute-force attacks?
One can reduce the likelihood of wps brute-force attacks if they Implement lockout periods for incorrect attempts.
What is a Brute Force Attack?This refers to the type of hacking that is done when a system or algorithm tries out multiple password combinations and sequences until it gets the right one.
Hence, we can see that based on the vulnerability of the WPS system to a brute force attack, it is recommended that there is the implementation of lockout periods for incorrect attempts.
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Steve wants to insert the copyright information in the webpages for the images used in the website. where would you recommend him to place this information?
I would recommend to Steve that he should insert or place the copyright information for the images used in the website in between the <footer>.....</footer>.
What is a website?A website can be defined as a collective name which connotes a series of webpages that are interconnected or linked together with the same domain name, so as to provide certain information to end users.
What is a webpage?A webpage can be defined as a hypertext document within a website and it usually has a unique uniform resource locator (URL).
In this scenario, I would recommend to Steve that he should insert or place the copyright information for the images used in the website in between the <footer>.....</footer> because they would appear underneath each of the webpages.
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How can you ensure that your internet search is happening over a secure network connection?.
A person can you ensure that your internet search is happening over a secure network connection by the use of:
By Renaming your Routers and Networks.The use of a strong passwords.Do Turn on encryption.The use of multiple firewalls.What is secure network connection?A secure connection is known to be a kind of a connection that is known to be one that is often encrypted by the use of a single or a lot of security protocols to make sure that the security of data that is known to be passing between two or more nodes.
Therefore, based on the above scenario, A person can you ensure that your internet search is happening over a secure network connection by the use of:
By Renaming your Routers and Networks.The use of a strong passwords.Do Turn on encryption.The use of multiple firewalls.Learn more about internet search from
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While working on a Windows workstation, you've enabled Remote Desktop.
Which of the following ports MUST be opened in the server's firewall to allow remote clients to access the desktop?
a) 3389
b) 389
c) 110
d) 123
The ports that MUST be opened in the server's firewall to allow remote clients to access the desktop is 3389,
What is the port of a computer?A port in computer hardware is known to be a form of a jack or socket that is said to be used when a piece of software is known to be translated or converted to be used or run on another hardware or operating system (OS).
Note that The ports that MUST be opened in the server's firewall to allow remote clients to access the desktop is 3389.
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application of ict in education
Explanation:
An advantage is that you can be more interactive with students. Teachers can further engage their students with things like quizzes. A disadvantage is you can get information almost instantly which may leave children questioning why they go to school, causing resultant dropouts. This also may make it easier to cheat on examinations which teachers don't want.
What is the digital foot print?
Answer:
Digital footprint (or digital shadow) refers to a person's unique set of traceable digital activities, actions, contributions and communications manifested on the Internet or digital devices.
Hope this helps.
Answer: A digital footprint is an impact you create on the Web through your online activity, which incorporates browsing, interactions with others, and publication of content. In other words, it can be considered as the data trail – intentional and unintentional - you leave behind while you surf the Web or Internet.
You have configured your Active Directory environment with multiple sites and have placed the appropriate resources in each of the sites. You are now trying to choose a protocol for the transfer of replication information between two sites. The connection between the two sites has the following characteristics:
In the above case, the protocol that meets these requirements is SMTP .
What is SMTP?SMTP or Simple Mail Transfer Protocol is known to be a kind of an application that is needed or that is often used to send, receive, and pass outgoing emails and this exist between senders and receivers.
Hence, in the above case, the protocol that meets these requirements is SMTP.
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The link is generally unavailable during certain parts of the day because of an unreliable network provider. The replication transmission must be attempted whether the link is available or not. If the link was unavailable during a scheduled replication, the information should automatically be received after the link becomes available again. Replication traffic must be able to travel over a standard Internet connection. Which of the following protocols meets these requirements? A. IP B. SMTP C. RPC D. DHCP
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What three values must be added to the ipv4 properties of a nic in order for a computer to have basic connectivity with the network? (choose three. )
Write code to define a function named mymath. The function has three arguments in the following order: Boolean, Integer, and Integer. It returns an Integer. The function will return a value as follows: 1. If the Boolean variable is True, the function returns the sum of the two integers. 2. If the Boolean is False, then the function returns the value of the first integer - the value of the second Integer.
Answer:
public class Main
{
public static void main(String[] args) {
Main m=new Main();
System.out.println(m.mymath(true,5,2)); // calling the function mymath
}
public int mymath(boolean a,int b,int c) // mymath function definition
{
if(a==true)
{
int d=b+c;
return d;
}
else{int e=b-c;
return e;
}
}
}
What two advantages does a dataraptor turbo extract have over a standard dataraptor extract?
The two advantages of dataraptor turbo extract that it have over a standard dataraptor extract are:
It is known to have Simpler configuration.It is known to also have a better performance at runtime.What is data Raptor?A DataRaptor is known to be a kind of a mapping tool that helps a person to be able to read, change, and write Salesforce data.
Hence, The two advantages of dataraptor turbo extract that it have over a standard dataraptor extract are:
It is known to have Simpler configuration.It is known to also have a better performance at runtime.Learn more about DataRaptor from
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A(n) ________ is the association between tables where both tables contain a common field.
A) link.
B) data model.
C) relationship.
D) share point.
Answer: Relationship
Explanation: A relationship is an association between two tables where the tables contain a common field of data.
What would happen to the glomerular filtration rate (gfr) if a person suffered from severe malnutrition?
Answer: Children and adults with malnutrition have been shown to have a decreased glomerular filtration rate and renal plasma flow (RPF), as well as a lowered capacity to concentrate the urine and excrete an acid load.
Explanation:
Application software can be categorized as either general-purpose, specialized, or ________ apps.
Application software can be categorized as either general-purpose or mobile apps.
What are mobile apps?Mobile apps can be defined as specialized applications developed to be used in cellphone devices.
Mobile apps are widely used and may help with diverse types of daily tasks and human activities.
In conclusion, application software can be categorized as either general-purpose or mobile apps.
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Using above information, Write a prolog program to answer the following queries. Please note that you cannot simply answer these queries with only facts, you should answer then using facts and rules
Using the computational knowledge in python it is possible to write a code that uses the functions to make a a prolog program to answer the following queries
Writting the code in python:valid([]).
valid([Head|Tail]) :-
fd_all_different(Head),
valid(Tail).
sudoku(Puzzle, Solution) :-
Solution = Puzzle,
Puzzle = [S11, S12, S13, S14,
S21, S22, S23, S24,
S31, S32, S33, S34,
S41, S42, S43, S44],
fd_domain(Solution, 1, 4),
Row1 = [S11, S12, S13, S14],
Row2 = [S21, S22, S23, S24],
Row3 = [S31, S32, S33, S34],
Row4 = [S41, S42, S43, S44],
Col1 = [S11, S21, S31, S41],
Col2 = [S12, S22, S32, S42],
Col3 = [S13, S23, S33, S43],
Col4 = [S14, S24, S34, S44],
Square1 = [S11, S12, S21, S22],
Square2 = [S13, S14, S23, S24],
Square3 = [S31, S32, S41, S42],
Square4 = [S33, S34, S43, S44],
valid([Row1, Row2, Row3, Row4,
Col1, Col2, Col3, Col4,
Square1, Square2, Square3, Square4]).
| ?- sudoku([_, 4, 3, 2,
3, _, _, _,
4, 1, _, _,
_, _, 4, 1],
Solution).
Solution = [1,4,3,2,3,2,1,4,4,1,2,3,2,3,4,1]
yes
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A network designer wants to run a 10 gigabit backbone between two switches in buildings that are 75 m (246 feet) apart. What is the main consideration when selecting an appropriate copper cable?
The main consideration when selecting an appropriate copper cable is that:
At that given distance, one can use some kinds of shielded or screened cat 6A or one can use a cable which is said to be needed for the installation to be in line with Ethernet standard 10GBASE-T.
What are the types of copper cables?Copper cable are known to often electrical signals to transmit data between some or a given networks.
Note that there are three types of copper cable which are:
coaxial, unshielded twisted pair shielded twisted pair.Copper is said to be a kind of electrical conductor in a lot of categories of electrical wiring and so The main consideration when selecting an appropriate copper cable is that:
At that given distance, one can use some kinds of shielded or screened cat 6A or one can use a cable which is said to be needed for the installation to be in line with Ethernet standard 10GBASE-T.
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What is the confirmation or validation of an event or object? multiple choice business intelligence data fact descriptive analytics
Fact is the confirmation or the validation of an event or object.
What do we mean by a fact?A fact is known to be a form of an indisputable observation in regards to a natural or social scenario.
The definition of the term fact is known to be anything that is regarded as true or that thing that has taken place or has been proven to be right. An example of a fact is the popular notion that the world is round.
Note that a person can see it straightforward and show it to others, hence, Fact is the confirmation or validation of an event or object.
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You have been asked to configure a client-side virtualization solution with three guest oss. Each one needs internet access. How should you configure the solution in the most cost-effective way?
The most cost-effective way to configure a client-side virtualization solution is by using one (1) physical NIC, three (3) virtual NICs, and one (1) virtual switch.
What is virtualization?Virtualization refers to the creation of an abstraction layer over computer hardware through the use of a software, in order to enable the operating system (OS), storage device, server, etc., to be used by end users.
In this scenario, the most cost-effective way to configure a client-side virtualization solution is by using one (1) physical network interface card (NIC), three (3) virtual network interface cards (NICs), and one (1) virtual switch.
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Task 5: Create the GET_CREDIT_LIMIT procedure to obtain the full name and credit limit of the customer whose ID currently is stored in I_CUST_ID. Place these values in the variables I_CUSTOMER_NAME and I_CREDIT_LIMIT, respectively. When the procedure is called it should output the contents of I_CUSTOMER_NAME and I_CREDIT_LIMIT.
The SQL statement that would create the GET_CREDIT_LIMIT procedure to obtain the full name and credit limit of the customer is:
GET_CREDIT_LIMIT
SELECT CUST_ID 125
FROM FIRST_NAME, LAST_NAME, CREDIT_LIMIT
WHERE LAST_NAME ="Smith"
What is SQL?This is an acronym that means Structured Query Language that is used in handling data in a database.
Hence, we can see that from the attached image, there is a table that contains the details of customers and their various data such as their first and last names, credit limits, address, etc, and the GET_CREDIT_LIMIT procedure is shown above.
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What is a method for confirming users’ identities?
Answer: Authentication
Explanation:
What is the new subnet mask in prefix format?
In the case above, the the new subnet mask in prefix format is seen in IPv6 and in IPv4.
What is subnet prefix mask?A lot or a single computer that is known to be linked to a subnet is said to shares a kind of an identical part of the IP address.
Note that this shared information is said to be called the routing prefix, and in IPV4 (Internet Protocol Version 4), the routing prefix is said to be called a subnet mask.
Hence, The the new subnet mask in prefix format is seen in IPv6 and in IPv4 because that is the format that it always comes in.
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The ___ method takes a callback function as an argument and returns the first element in an array for which the callback function returns true.
Answer:
Find
Explanation:
The find method takes a callback function as an argument and returns the first element in an array for which the callback function returns true.
Weak passwords are a(n) ___________ threat
Answer: Employee
Explanation:
Why does the use of passwords put the overall security of the network in jeopardy?
Jared tends to display his weaknesses and downplay his positive characteristics. With whom is he is likely to prefer to spend time
In the case above, Jared is likely to prefer to spend time with his friends.
What is the meaning of association?The Definition of the term association is known to be the act of being with other people.
People often associate with others due to one thing all the other. life exist only as a result of the relationship we have. it can be association base on friendship, love, family, business, and others.
Note that in the case above, because Jared wants to be with his friends, he tends to show only his weakness and as such, In the case above, Jared is likely to prefer to spend time with his friends.
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What do we call a blinking indicator that shows you where your next action will happen?
Answer:
cursor
Explanation:
When you log into a website that uses a directory service, what command authenticates your username and password?
When you log into a website that uses a directory service, The Bind command authenticates your username and password.
What is the Bind command?The Bind command is known to be seen as the Bash shell builtin command.
Note that this is a term that is often used to set Readline key bindings and also that of its variables.
Note that the keybindings are seen as the keyboard works or actions that are said to be bound to a function.
Note also that it can be used to alter how the bash will act to keys or combinations of keys and thus, When you log into a website that uses a directory service, The Bind command authenticates your username and password.
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Intrusion detection and prevention systems can deal effectively with newly published attacks or variants of existing attacks.
Intrusion detection and prevention systems can deal effectively with newly published attacks or variants of existing attacks is False statement.
Why use an intrusion detection and prevention systems?A network intrusion detection system (NIDS) is known to be one that is very vital for network security due to the fact that it helps you to be able to know or detect and also be able to respond to any form of a malicious traffic.
Note that the primary gains of an intrusion detection system is to make sure that IT personnel are notified if an attack or network intrusion has taking or is taking place.
Hence, Intrusion detection and prevention systems can deal effectively with newly published attacks or variants of existing attacks is False statement.
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Intrusion detection consists of procedures and systems that identify system intrusions and take action when an intrusion is detected.
A) True
B) False
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