Answer:
Bare metal DB systems
Explanation:
Oracle Call Interface OCI is comprehensive system which is native C language interface to Oracle Database for custom applications. The bare metal database system requires more compute node processing power. Customers are not given OS logons or SYSDBA in Oracle autonomous applications which prevents phishing attacks.
The technology environment would include studies of family changes. social engineering. information technology. minimum wage laws. customer service.
Question:
The technology environment would include studies of:
A) family changes
B) social engineering
C) information technology
D) minimum wage laws
E) customer service
Answer:
The correct answer is Information Technology (C)
Explanation:
Information and communications technology (ICT) or Information Technology. Whenever the technology environment is under discourse, these are usually the predominant subject matter.
It doesn't come as a surprise given that we live in an information age. An era of the internet of things. If we are tending towards an era where every equipment and even most biological species will give off and receive data, then a technology environment is really predominantly IT.
Cheers!
When introducing new devices to the network, the organization's security policy requires that devices be monitored to establish normal traffic patterns for the device. Which of the following is generated from initial monitoring?
A. SLA
B. Baseline
C. Forensic log
D. Vulnerability assessment
Answer:
The answer is "Option B".
Explanation:
The Baseline measurement is an essential characteristic of effective coal company monitoring programs to assess the degree of mining effects and keep on improving effect monitoring the system will continue to be modified via periodical analyses, and the wrong choices can be defined as follows:
In choice A, it is wrong because it used in 3D printing technology. In choice C, it is used to analyze the log entities, that's why it is wrong. In choice D, it is used to analyze the security weaknesses, that's why it's wrong.6. A distribution consists of three components with frequencies 200, 250 and 300 having means
25,10, and 15 and standard deviations 3, 4, and 5 respectively.
Calculate
The mean?
The standard deviation?
Answer:
The mean = 16
The standard deviation = 7.19
Explanation:
N1 = 200 X1 = 25 σ1 = 3
N2= 250 X2 = 10 σ2 = 4
N3 = 300 X3= 15 σ3 = 5
The mean of a combined distribution is given by:
[tex]X = \frac{X_1N_1+X_2N_2+X_3N_3}{N_1+N_2+N_3}\\X = \frac{25*200+10*250+15*300}{200+250+300}\\X=16[/tex]
The differences from the mean for each component are:
[tex]D_1 = 25-16=9\\D_2=10-16=-6\\D_3=15-16=-1[/tex]
The standard deviation of a combined distribution is given by:
[tex]\sigma=\sqrt{\frac{N_1(\sigma_1^2+D_1^2)+N_2(\sigma_2^2+D_2^2)+N_3(\sigma_3^2+D_3^2)}{N_1+N_2+N_3}}\\\sigma=\sqrt{\frac{200(3^2+9^2)+250(4^2+(-6)^2)+300(5^2+(-1)^2)}{200+250+300}}\\\sigma=\sqrt{\frac{18000+13000+7800}{750} }\\\sigma=7.19[/tex]
The mean = 16
The standard deviation = 7.19
what kind of company would hire an information support and service employee?
-software development
-computer repair
-website development
-network administration
Answer:
it's a
Explanation:
#Write a function called 'string_type' which accepts one #string argument and determines what type of string it is. # # - If the string is empty, return "empty". # - If the string is a single character, return "character". # - If the string represents a single word, return "word". # The string is a single word if it has no spaces. # - If the string is a whole sentence, return "sentence". # The string is a sentence if it contains spaces, but # at most one period. # - If the string is a paragraph, return "paragraph". The # string is a paragraph if it contains both spaces and # multiple periods (we won't worry about other # punctuation marks). # - If the string is multiple paragraphs, return "page". # The string is a paragraph if it contains any newline # characters ("\n"). # #Hint: think carefully about what order you should check #these conditions in. # #Hint 2: remember, there exists a count() method that #counts the number of times a string appears in another #string. For example, "blah blah blah".count("blah") #would return 3.
Answer:
I am writing a Python program:
def string_type(string):
if string=="": //if the string is empty
return "empty"
elif string.count(".")>1: #if the period sign occurs more than once in string
if string.count("\n"): #checks if the new line occurs in the string
return "page" #if both the above cases are true then its a page
return "paragraph" # if the period sign condition is true then its a para
elif string.count(" ")>=1: #if no of spaces in string occur more than once
return "sentence" #returns sentence
elif len(string)==1: # if length of the string is 1 this
return "character" #returns character
else: #if none of the above conditions is true then its a word
return "word" #returns word
Explanation:
def string_type(string): this is the definition of method string_type which takes a string as argument and determines whether the type of string is a word, paragraph, page, sentence or empty.
if string=="" this if condition checks if the string is empty. If this condition is true then the method returns "empty"
elif string.count(".")>1 This condition checks if the string type is a paragragh
string.count(".")>1 and if string.count("\n") both statements check if the string type is a page.
Here the count() method is used which is used to return the number of times a specified string or character appears in the given string.
Suppose the string is "Paragraphs need to have multiple sentences. It's true.\n However, two is enough. Yes, two sentences can make a paragraph."
The if condition first checks if count(".")>1 which means it counts the occurrence of period i.e. "." in the string. If the period occurs more than once this means it could be a page. But it could also be a paragraph so in order to determine the correct string type another if statement if string.count("\n") inside elif statement determines if the string is a page or not. This statement checks the number of times a new line appears in the string. So this distinguishes the string type paragraph from string type page.
elif string.count(" ")>=1: statement determines if the string is a sentence. For example if the string is "i love to eat apples." count() method counts the number of times " " space appears in the string. If the space appears more than once this means this cannot be a single word or a character and it has more than one words. So this means its a sentence.
elif len(string)==1: this else if condition checks the length of the string. If the length of the string is 1 this means the string only has a single character. Suppose string is "!" Then the len (string) = 1 as it only contains exclamation mark character. So the method returns "character" . If none of the above if and elif conditions evaluates to true then this means the string type is a word.
Answer:
def string_type(string):
if string=="": //if the string is empty
return "empty"
elif string.count(".")>1: #if the period sign occurs more than once in string
if string.count("\n"): #checks if the new line occurs in the string
return "page" #if both the above cases are true then its a page
return "paragraph" # if the period sign condition is true then its a para
elif string.count(" ")>=1: #if no of spaces in string occur more than once
return "sentence" #returns sentence
Explanation:
How does computer mouse impact the world, society and health?
Explanation:
Without it, we may have endured convoluted keyboard commands for years, greatly hindering the process of bringing the PC into homes everywhere. The mouse revolutionized computer interfaces, simplified an otherwise scary machine, and helped connect the world.
The following code uses a nested if statement.
if (employed == 'Y')
cout << "Employed!" << endl;
else if (employed == 'N')
cout << "Not Employed!" << endl;
else
cout << "Error!" << endl;
a. True
b. False
Answer:
true
Explanation:
else if used so I think it's true
A variable like userNum can store a value like an integer. Extend the given program to print userNum values as indicated.
(1) Output the user's input. Enter integer: 4 You entered: 4
(2) Extend to output the input squared and cubed. Enter integer: 4 You entered: 4 4 squared is 16 And 4 cubed is 64!!
(3) Extend to get a second user input into userNum2. Output sum and product. Enter integer: 4 You entered: 4 4 squared is 16 And 4 cubed is 64!! Enter another integer: 5 4+5 is 9 4*5 is 20.
Answer:
This program is written using Java programming language.
No comments were used; however, see explanation section for line by line explanation
import java.util.*;
public class Nums {
public static void main(String args[]) {
Scanner input = new Scanner(System.in);
System.out.println("1.");
int userNum;
System.out.print("Enter Integer: ");
userNum = input.nextInt();
System.out.println("You entered: "+userNum);
System.out.println("2.");
System.out.print("Enter Integer: ");
userNum = input.nextInt();
System.out.println("You entered: "+userNum);
System.out.println(userNum+" squared is "+(userNum * userNum));
System.out.println("And "+userNum+" cubed is "+(userNum * userNum * userNum)+"!!");
System.out.println("3.");
System.out.print("Enter Another integer: ");
int userNum2 = input.nextInt();
System.out.println(userNum+" + "+userNum2+" is "+(userNum + userNum2));
System.out.println(userNum+" * "+userNum2+" is "+(userNum * userNum2));
}
}
Explanation:
This enables the program accept inputs
Scanner input = new Scanner(System.in);
This signifies the beginning of number 1
System.out.println("1.");
Variable userNum is declared as type integer
int userNum;
The line prompts the user for input
System.out.print("Enter Integer: ");
The line accepts the input
userNum = input.nextInt();
This line displays user input
System.out.println("You entered: "+userNum);
This signifies the beginning of number 2
System.out.println("2.");
This line prompts the user for input
System.out.print("Enter Integer: ");
This line accepts input
userNum = input.nextInt();
This line prints user input (as required in number 2)
System.out.println("You entered: "+userNum);
This line calculates and prints the square of user input
System.out.println(userNum+" squared is "+(userNum * userNum));
This line calculates and prints the cube of user input
System.out.println("And "+userNum+" cubed is "+(userNum * userNum * userNum)+"!!");
This signifies the beginning of number 3
System.out.println("3.");
This line prompts the user for another integer value
System.out.print("Enter Another integer: ");
This line accepts the input from the user
int userNum2 = input.nextInt();
This line adds the two inputs by the user and displays the result
System.out.println(userNum+" + "+userNum2+" is "+(userNum + userNum2));
This line multiplies the two inputs by the user and displays the result
System.out.println(userNum+" * "+userNum2+" is "+(userNum * userNum2));
Assume that to_the_power_of is a function that expects two integer parameters and returns the value of the first parameter raised to the power of the second parameter. Write a statement that calls to_the_power_of to compute the value of cube_side raised to the power of 3 and that associates this value with cube_volume.
Answer:
The statement in python is as follows:
to_the_power_of(cube_side,3)
Explanation:
As stated as the requirement of the code segment, the statement takes as parameters a variable cube_side and a constant 3.
It then returns the volume of the cube; i.e. cube raise to power 3
See full program below
def to_the_power_of(val,powe):
result = val**powe
print(result)
cube_side = float(input("Cube side: "))
to_the_power_of(cube_side,3)
TLS does not require mutual authentication. Only server must authenticate its public key to the client. Client is authenticated by the application via a password. The most common way for public key authentication would be a. a photo ID. b. a password. c. a certificate. d. biometrics.
Answer:
c. a certificate.
Explanation:
Public key infrastructure authentication is intended to make transactions occurring through the internet as secure as possible. Public keys are usually assigned to entities like business firms or individuals, and digital certificates are given to them as proof that they have been authenticated.
A certificate authority has the role of signing, storing, and issuing digital certificates. A software or humans could be charged with the responsibility of actually ensuring a key to user binding if all conditions are satisfied.
Shovels and Shingles is a small construction company consisting of 12 computers that have Internet access. The company's biggest concern is that a wily competitor will send e-mail messages pretending to be from Shovels and Shingles in order to get confidential information. Write down an encryption solution that best prevents a competitor from receiving confidential information and justify the recommendation.
Answer:
The Encryption solution that best prevents a competitor from receiving confidential information is the SSL(secure Socket Layer) Or TLS(Transport Layer Security).
Explanation:
Solution:
From my own perspective the encryption solution that i will use that prevents s a competitor from receiving confidential information and justify the recommendation is the SSL(secure Socket Layer) Or TLS(Transport Layer Security).
This is because in this case we have to share data confidentially (information need to be hidden from Unauthorized security access. also these provides the Transport Layer security that we needed in above example above.
The purpose of these protocol is to provide server and client authentication, Data confidentiality,and Data integrity (protected from unauthorized change). Application Layer client/server program such as HTTP that uses the service of TCP can encapsulate their data in SSL Packets.
SSL (Secure Socket Layer): is defined as the normal technology for protecting an internet connection secure and defend any sensitive data that is being sent between two systems, and not allowing criminals from reading and changing any information sent, including potential personal details.
TLS (Transport Layer security): It is a procedure that allows data integrity and privacy over Internet communications.
A network technician is designing a network for a small company. The network technician needs to implement an email server and web server that will be accessed by both internal employees and external customers. Which of the following would best secure the internal network and allow access to the needed servers?
A. Implementing a site-to-site VPN for server access.B. Implementing a DMZ segment for the server.C. Implementing NAT addressing for the servers.D. Implementing a sandbox to contain the servers.
Answer:
Option A (Implementing a site-to-site VPN for server access) seems to be the correct choice.
Explanation:
A site-to-site configuration is something that a single Open VPN network links several more separate networks linked. Technologies through one network will access machines in all the other computer systems in that connection model, including conversely. Implementing this would be extremely straightforward, for as much further even though Access Server was indeed implicated.The much more challenging aspect happens when interacting regarding firewalls including privacy filtering methods, as well as modifying the forwarding table in internet gateways, as several of them from different manufacturers but instead prototypes which they may not be able to log many of these.This rather gateway device uses an Open VPN with a Linux VPN client, to create a connection between various channels. If someone's server hardware is also measured accurately then perhaps a site-to-site configuration could be accomplished which works straightforwardly throughout all systems in both cable systems.Other choices are not related to the given instance. So that Option A would be the right one.
A script sets up user accounts and installs software for a machine. Which stage of the hardware lifecycle does this scenario belong to?
Answer:
deployment phase
Explanation:
This specific scenario belongs to the deployment phase of the hardware lifecycle. This phase is described as when the purchased hardware and software devices are deployed to the end-user, and systems implemented to define asset relationships. Meaning that everything is installed and set up for the end-user to be able to use it correctly.
Identify and write the errors given in the flowchart (with steps and flowchart) : Start ↓ Input A,B ↓ Average = (A + B + C) / 3 ↓ Print Average ↓ Stop
Answer:
i will send you the answers in the next 10minute
More than one component in a particular automotive electric circuit is not working. Technician A starts testing the circuit at the power source. Technician B starts testing the circuit at its load. Who is right?
Hi there! Hopefully this helps!
--------------------------------------------------------------------------------------------------
The answer is A, testing the circuit at the power source.
Define stubs for the functions get_user_num) and compute_avg). Each stub should print "FIXME: Finish function_name" followed by a newline, and should return -1. Each stub must also contain the function's parameters Sample output with two calls to get_user_num) and one call to compute_avg): FIXME: Finish get_user_num() FIXME: Finish get_user_num() FIXME: Finish compute_avg() Avg: -1 1 ' Your solution goes here '' 2 4 user_num1 = 0 5 user_num2 = 0 6 avg_result = 0 7 8 user_num1 = get_user_num 9 user_num2 = get_user_num ) 10 avg_result = compute_avg(user_num1, user_num2) 11 12 print'Avg:', avg_result)|
Answer:
Here are the stub functions get_user_num() and compute_avg()
def get_user_num():
print('FIXME: Finish get_user_num()')
return -1
def compute_avg(user_num1, user_num2):
print('FIXME: Finish compute_avg()')
return -1
Explanation:
A stub is a small function or a piece of code which is sometimes used in program to test a function before its fully implemented. It can also be used for a longer program that is to be loaded later. It is also used for a long function or program that is remotely located. It is used to test or simulate the functionality of the program.
The first stub for the function get_user_num() displays FIXME: Finish get_user_num() and then it returns -1.
The seconds stub for the function compute_avg() displays the FIXME: Finish compute_avg() and then it returns -1.
Here with each print statement, there is function name after this FIXME: Finish line. The first function name is get_user_num and the second is compute_avg().
Next the function get_user_num() is called twice and function compute_avg() followed by a print statement: print('Avg:', avg_result) which prints the result. So the program as a whole is given below:
def get_user_num():
print('FIXME: Finish get_user_num()')
return -1
def compute_avg(user_num1, user_num2):
print('FIXME: Finish compute_avg()')
return -1
user_num1 = 0 # the variables are initialized to 0
user_num2 = 0
avg_result = 0
user_num1 = get_user_num() #calls get_user_num method
user_num2 = get_user_num()
avg_result = compute_avg(user_num1, user_num2)
print('Avg:', avg_result)
The method get_user_num() is called twice so the line FIXME: Finish get_user_num() is printed twice on the output screen. The method compute_avg() is called once in this statement avg_result = compute_avg(user_num1, user_num2) so the line FIXME: Finish compute_avg() is printed once on the output screen. Next the statement print('Avg:', avg_result) displays Avg: -1. You can see in the above program that avg_result = compute_avg(user_num1, user_num2) and compute_avg function returns -1 so Avg= -1. The program along with the produced outcome is attached.
In the Programming Process which of the following is not involved in defining what the program is to do:_____________ Group of answer choices
a. Compile code
b. Purpose
c. Output
d. Input
e. Process
Answer:
a. Compile code
Explanation:
In programming process, the following are important in defining what a program is to do;
i. Purpose: The first step in writing a program is describing the purpose of the program. This includes the aim, objective and the scope of the program. The purpose of a program should be defined in the program.
ii. Input: It is also important to specify inputs for your program. Inputs are basically data supplied to the program in order to perform a task. Valid inputs are defined in the program.
iii. Output: Many times, when inputs are supplied to a program the resulting effects are shown in the outputs. The way the output will be is defined in the program.
iv. Process: This involves the method by which inputs are being mapped into outputs. The process implements the functionality of the program by converting inputs into their corresponding outputs. The process is defined in the program.
Compile code is not a requirement in defining what a program is to do. It just allows the source code of the program to be converted into a language that the machine understands.
Write a program that first reads in the name of an input file and then reads the file using the csv.reader() method. The file contains a list of words separated by commas. Your program should output the words and their frequencies (the number of times each word appears in the file) without any duplicates.
Answer:
Here is the Python code.
import csv
inputfile = input("Enter name of the file: ")
count = {}
with open(inputfile, 'r') as csvfile:
csvfile = csv.reader(csvfile)
for line in csvfile:
for words in line:
if words not in count.keys():
count[words] = 1
else:
count[words] + 1
print(count)
Explanation:
I will explain the code line by line.
import csv here the css is imported in order to read the file using csv.reader() method
inputfile = input("Enter name of the file: ") This statement takes the name of the input file from the user
count = {} this is basically a dictionary which will store the words in the file and the number of times each word appears in the file.
with open(inputfile, 'r') as csvfile: This statement opens the inputfile using open() method in read mode. This basically opens the input file as csv type
csvfile = csv.reader(csvfile) This statement uses csv.reader() method to read the csv file contents.
for line in csvfile: This outer for loop iterates through each line of the file
for words in line: This inner loop iterates through each word in the line
if words not in count.keys(): This if condition checks if the word is not in the dictionary already. The dictionary holds key value pair and keys() method returns a list of all the keys of dictionary
count[words] = 1 if the word is not present already then assign 1 to the count dictionary
co unt[words] + 1 if the word is already present in dictionary increment count of the words by 1. Suppose the input file contains the following words:
hello,cat,man,hey,dog,boy,Hello,man,cat,woman,dog,Cat,hey,boy
Then because of co unt[words] + 1 statement if the word appears more than once in the file, then it will not be counted. So the output will be:
{' cat': 1, ' man': 1, ' dog': 1, ' woman': 1, ' Hello': 1, ' hey': 1, ' boy': 1, 'hello': 1, ' Cat': 1}
But if you want the program to count those words also in the file that appear more than once, then change this co unt[words] + 1 statement to:
count[words] = count[words] + 1
So if the word is already present in the file its frequency is increased by 1 by incrementing 1 to the count[words]. This will produce the following output:
{' Cat': 1, ' cat': 2, ' boy': 2, ' woman': 1, ' dog': 2, ' hey': 2, ' man': 2, ' Hello': 1, 'hello': 1}
You can see that cat, boy, dog and hey appear twice in the file.
print(count) This statement prints the dictionary contents with words and their frequencies.
The program with its output is attached.
The program is an illustration of file manipulations.
File manipulations involve reading from and writing into files.
The program in Python, where comments are used to explain each line is as follows:
#This imports csv module
import csv
#This initializes a dictionary
kounter = {}
#This gets input for the file name
fname = input("Filename: ")
#This opens and iterates through the file
with open(fname, 'r') as cfile:
#This reads the csv file
cfile = csv.reader(cfile)
#This iterates through each line
for line in cfile:
#This iterates through each word on each line
for words in line:
#This counts the occurrence of each word
if words not in kounter.keys():
kounter[words] = 1
else:
kounter[words] + 1
#This prints the occurrence of each word
print(kounter)
Read more about similar programs at:
https://brainly.com/question/14468239
Explain what a honeypot is. In your explanation, give at least one advantage and one disadvantage of deploying a honeypot on a corporate network.
Answer:
A honeypot is a computer network set up to act as a decoy to track, deflect, or research trying to obtain unwanted access to the information system.
Explanation:
A honeypot is a device or device network designed to imitate possible cyber-attack targets. It can be utilized to detect or deflect assaults from a legitimate military target. It may also be used to collect knowledge on how cybercrime works.
Advantage:-
Data Value:- One of the challenges faced by the research community is to obtain meaning from big data. Companies hold large quantities of data daily including firewall logs, device logs, and warnings for vulnerability scanning. Resources:- The problem facing most protection systems is resource shortages or even the depletion of resources. Power saturation is when a protection asset can no longer work since it is overloaded by its assets. Simplicity :- I find simplicity to be the biggest single strength of honeypots. No flashy techniques are to be created, no stamp computer systems to be managed, no rule units to be misconfigured.Disadvantage:-
That honeypot doesn't replace any safety mechanisms; they just operate with your overall security infrastructure and improve it.
Assume that a program consists of integer and floating-point instructions. 60% of the total execution time is spent on floating point instructions and the remaining 40% is on integer instructions. How much faster should we run the floating-point instructions to execute entire program 1.25 times faster
Answer:
the floating-point instructions should be run 1.5 times faster in order to execute entire program 1.25 times faster
Explanation:
Given that:
a program consists of integer and floating-point instructions. 60% of the total execution time is spent on floating point instructions and the remaining 40% is on integer instructions.
Let the integer be the total execution time = V
The floating-point instructions = 60%
The integer instruction = 40%
The time spent on the floating-point instruction = 60/100 × V
= 0.6 V
The time spent on t he integer instruction = 40/100 × V
= 0.4 V
However; How much faster should we run the floating-point instructions to execute entire program 1.25 times faster
If we are to execute the entire program 1,25 times faster;
The new execution time = V/1.25
Assuming the new time spent on floating-point instruction = W
∵
W + 0.4 V = V/1.25
W = V/1.25 - 0.4 V
W = (V - 0.5V)/1.25
W = 0.4V
the new time spent on floating-point instruction = W = 0.4 V
The speed required to make the floating -point instruction to run faster = 0.6V/.4 V
= 1.5
Hence, the floating-point instructions should be run 1.5 times faster in order to execute entire program 1.25 times faster
In the context of structured systems analysis and design (SSAD) models, a _____ is a tool that illustrates the logical steps in a process but does not show data elements and associations.
Answer:
Flowchart.
Explanation:
Structured Systems Analysis and Design (SSAD) is a methodology and a systems technique of analyzing and designing of information systems.
This system uses several tools to design various components such as dataflow diagram, conceptual data model, flowchart, etc.
In the given scenario, the tool that will be used by the system would be a flowchart.
A flowchart is a diagram that represents a systematic flow of a process. In SSAD, flowchart is used to illustrate the logical steps to be taken in a process but it does not show data elements and associations.
So, the correct answer is flowchart.
A vowel word is a word that contains every vowel. Some examples of vowel words are sequoia, facetious, and dialogue. Determine if a word input by the user is a vowel word.
Answer:
vowels = ("a", "e", "i", "o", "u")
word = input("Enter a word: ")
is_all = True
for c in vowels:
if c not in word:
is_all = False
if is_all == True:
print(word + " is a vowel word.")
else:
print(word + " is not a vowel word.")
Explanation:
Initialize a tuple, vowels, containing every vowel
Ask the user to enter a word
Initially, set the is_all as True. This will be used to check, if every vowel is in word or not.
Create a for loop that iterates through the vowels. Inside the loop, check if each vowel is in the word or not. If one of the vowel is not in the vowels, set the is_all as False.
When the loop is done, check the is_all. If it is True, the word is a vowel word. Otherwise, it is not a vowel word.
any element that has a starting tag and does not have a closing tag is called a ?
pls be quick guys
Answer:
Any element that has a starting tag and doesn't have a closing tag is called a empty element.
:)
Select the option that is not true. 1. Timestamp and Validation schedulers are both optimistic schedulers. 2. Timestamp and Validation schedulers can be used to remove physically unrealizable behaviour. 3. Timestamp and Validation schedulers guarantee serializability. 4. Timestamp and Validation schedulers perform most effectively on transactions that perform writes.
Answer:
3. Timestamp and Validation schedulers guarantee serializability.
Explanation:
Timestamp is a sequence of information encoded when a certain event occurs at a given time that information is decoded and message is identified. Time schedulers is optimistic scheduler and it removes physically unrealizable behavior. Timestamp cannot guarantee serializability. It can detect unrealizable behavior.
Suppose that a main method encounters the statement t3.join(); Suppose that thread t3's run() method has completed running. What happens?
A. The main method waits for all running threads to complete their run() methods before proceeding.
B. The main method waits for any other thread to complete its run() method before proceeding
C. The main method proceeds to the next statement following the t3.join(); statement
D. Thread t 3 is re-started
E. All threads except t3 that are running are terminated
Answer:
C. The main method proceeds to the next statement following the t3.join(); statement
Explanation:
join() method allows the thread to wait for another thread and completes its execution. If the thread object is executing, then t3.join() will make that t is terminated before the program executes the instruction. Thread provides the method which allows one thread to another complete its execution. If t is a thread object then t.join() will make that t is terminated before the next instruction. There are three overloaded functions.
join()
join(long mills)
join(long millis, int Nanos)
If multiple threads call the join() methods, then overloading allows the programmer to specify the period. Join is dependent on the OS and will wait .
Write a program that asks the user to input a positive integer and then calculates and displays the factorial of the number. The program should call a function named getN
Answer:
The program is written in python and it doesn't make use of any comment;
(See explanation section for line by line explanation)
def getN(num):
fact = 1
for i in range(1, 1 + num):
fact = fact * i
print("Factorial: ",fact)
num = int(input("Number: "))
if num < 0:
print("Invalid")
else:
getN(num)
Explanation:
The function getNum is defined here
def getN(num):
Initialize the result of the factorial to 1
fact = 1
Get an iteration from 1 to the user input number
for i in range(1, 1 + num):
Multiply each number that makes the iteration
fact = fact * i
Print result
print("Factorial: ",fact)
Ths line prompts user to input number
num = int(input("Number: "))
This line checks if user input is less than 0; If yes, the program prints "Invalid"
if num < 0:
print("Invalid")
If otherwise, the program calls the getN function
else:
getN(num)
For each of these relations on the set {21,22,23,24},decide whether it is re- flexive, whether it is symmetric, whether it is antisymmetric, and whether it is transitive.1. {(22, 22), (22, 23), (22, 24), (23, 22), (23, 23), (23, 24)} 2. {(21,21),(21,22),(22,21),(22,22),(23,23),(24,24)}
Answer:
1. {(22, 22) (22, 23), (22, 24), (23, 22), (23, 23), (23, 24)} : Not reflective, Not symmetric, Not anti-symmetric, Transitive.
2. {(21,21),(21,22),(22,21),(22,22),(23,23),(24,24)}: Reflective, symmetric.
Explanation:
Solution
Reflective: Of every element matched to its own element
Symmetric: For every (a,b) there should be (b,a)
Anti-symmetric: For every (a,b) there should not be (b,a)
Transitive: For every (a,b) ∈R and (b,c)∈ R -then (a,c) ER for all a, b, c ∈ A
Now,
1.{(22, 22) (22, 23), (22, 24), (23, 22), (23, 23), (23, 24)}
Not Reflective: This is because we don't have (21,21) (23,23) and (24,24)
Not symmetric: Because we don't have (23,24) and (24,23)
Not anti symmetric: We have both (22,23) and (23,22)
Transitive: It is either 22 or 23 be (a,b) and 24 (b,a)
2. {(21,21),(21,22),(22,21),(22,22),(23,23),(24,24)}
Reflective: For all we have (a,a)
Symmetric: For every (a,b) we have (b,a)
Not Anti-symmetric
Transitive
The purpose of validating the results of the program is Group of answer choices To create a model of the program To determine if the program solves the original problem To correct syntax errors To correct runtime errors
Answer:
To determine if the program solves the original problem
Explanation:
Required
Essence of validating a program
From list of given options, only the above option best describes the given illustration.
When a program is validated, it means that the results of the program are tested to meet the requirements of the user;
For a program to be validated, it means it has passed the stage of error checking and correction; whether syntax or run time errors;
However, when modifications are made, the program will need to be re-validated to ensure that it comports with its requirements.
"The correct syntax for passing an array as an argument to a method when a method is called and an array is passed to it is: "
Question:
"The correct syntax for passing an array as an argument to a method when a method is called and an array is passed to it is: "
A) a[0]..a[a.length]
B) a()
C) a
D) a[]
Answer:
The correct answer is A.
An example is given in the attachment.
Cheers!
If no other row matches, the router will select the ________ row as its best match. First Last either First or Last, depending on the circumstances neither First nor Last
Answer:
Last
Explanation:
Routing is a term in engineering which involves the process of selecting a path for traffic in a network or across multiple networks. It is applicable in circuit-switched networks, such as the public switched telephone network (PSTN), and computer networks, such as the Internet. It is mostly used as a term for IP Routing.
Hence, in IP Routing, the first step is comparing the packet's destination IP address to all rows, followed by selecting the nest-match row. However, If no other row matches, the router will select the LAST row as its best match.