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elena-s [515]
3 years ago
11

Constructors ________. initialize instance variables when overloaded, can have identical argument lists when overloaded, are sel

ected by number, types and order of types of parameters Both initialize instance variables and when overloaded, are selected by number, types and order of types of parameters.
Computers and Technology
1 answer:
icang [17]3 years ago
8 0

Answer:

In the given question first and last line is correct, which can be described as below:

Explanation:

The constructor is a unique element method whose role is to initialize his class as an object. Its name and class name always be the same, and it doesn't return any value. When class object is created it is automatically called, and the wrong option can be described as follows:

  • When constructor it overloaded it can't have identical parameters.
  • It is not chosen by type, number and order of arguments  for Both allocate and instance variable
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If you have two tasks x and y, with y being a successor to x, if we mark x as undone (because it needs to be redone for some rea
Ierofanga [76]

Answer:

idk

Explanation:

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7 0
3 years ago
Your IT manager wants you to set up three computers to appear to users as one powerful Windows Server 2016 server. What capabili
Marina86 [1]

Answer:

The answer is "Clustering"

Explanation:

Clustering is a technique, which includes the Microsoft Windows and the coordination with an individual multi-PC's, that is mostly connected to the local area network, as a single platform.

  • It is cheaper than one device.
  • It enables you to greater machine performance and increases usability and reliability, that's why the answer to this question is "Clustering".
4 0
3 years ago
What will be displayed after code corresponding to the following pseudocode is run? Main Set OldPrice = 100 Set SalePrice = 70 C
Tatiana [17]

Answer:

A jacket that originally costs $ 100 is on sale today for $ 80                                    

Explanation:

Main : From here the execution of the program begins

Set OldPrice = 100  -> This line assigns 100 to the OldPrice variable

Set SalePrice = 70   -> This line assigns 70to the SalePrice variable

Call BigSale(OldPrice, SalePrice)  -> This line calls BigSale method by passing OldPrice and SalePrice to that method

Write "A jacket that originally costs $ ", OldPrice  -> This line prints/displays the line: "A jacket that originally costs $ " with the resultant value in OldPrice variable that is 100

Write "is on sale today for $ ", SalePrice  -> This line prints/displays the line: "is on sale today for $ " with the resultant value in SalePrice variable that is 80

End Program -> the main program ends

Subprogram BigSale(Cost, Sale As Ref)  -> this is a definition of BigSale method which has two parameters i.e. Cost and Sale. Note that the Sale is declared as reference type

Set Sale = Cost * .80  -> This line multiplies the value of Cost with 0.80 and assigns the result to Sale variable

Set Cost = Cost + 20  -> This line adds 20 to the value of Cost  and assigns the result to Cost variable

End Subprogram  -> the method ends

This is the example of call by reference. So when the method BigSale is called in Main by reference by passing argument SalePrice to it, then this call copies the reference of SalePrice argument into formal parameter Sale. Inside BigSale method the reference &Sale is used to access actual argument i.e. SalePrice which is used in BigSale(OldPrice, SalePrice) call. So any changes made to value of Sale will affect the value of SalePrice

So when the method BigSale is called two arguments are passed to it OldPrice argument and SalePrice is passed by reference.

The value of OldPrice is 100 and SalePrice is 70

Now when method BigSale is called, the reference &Sale is used to access actual argument SalePrice = 70

In the body of this method there are two statements:

Sale = Cost * .80;

Cost = Cost + 20;

So when these statement execute:

Sale = 100 * 0.80 = 80

Cost = 100 + 20 = 120

Any changes made to value of Sale will affect the value of SalePrice as it is passed by reference. So when the Write "A jacket that originally costs $ " + OldPrice Write "is on sale today for $ " + SalePrice statement executes, the value of OldPrice remains 100 same as it does not affect this passed argument, but SalePrice was passed by reference so the changes made to &Sale by statement in method BigSale i.e.  Sale = Cost * .80; has changed the value of SalePrice from 70 to 80 because Sale = 100 * 0.80 = 80. So the output produced is:

A jacket that originally costs $ 100 is on sale today for $ 80                              

7 0
3 years ago
Different network scenarios require the
Vladimir [108]

Answer:

a) Viruses

Explanation:

Vulnerability assessment is performed by variety of tools and these can be protocol analyzer, vulnerability scanner, Honeypots, port scanners, honey nets and banner grabbing tools.

Port scanners : they are used to scan the ports which can be exploited by attackers. Most of TCP/IP applications communicate using different ports and attackers can exploit these ports if they are found vulnerable. for example : ports like 80 and 443 are commonly used for HTTP and SSL communication. 22 is used for SSH and if they are open to world then it will allow attackers to use those to get the entry into the system.

Protocol Analyzers : They are used to analyze the packet captures. tools like wireshark, tshark, these tools will help user to decode HTTP/SSL/HTTPS/FTP/RSTP or any application protocols communication. this will help user to understand any unwanted or non-anticipated traffic.

Vulnerability Scanners : They are used to detect the vulnerabilities in the network or systems. these will help administrators to get the alerts whenever there are unanticipated activity. It will have two types of scanners one is active scanner and other is passive scanner. Active scanners will keep on sending probes at the fixed time slots and passibe scanners will be in listening mode all the time. These scanners will alert when a new nodes comes up or goes down or if any system gets compromised.

Honeypots and Honey nets : They are devices or softwares which are having limited security. These devices are made vulnerable purposefully so that attackers can try and attack.  This will help softwares to detect the attackers when they try to exploit these open vulnerabilities. They are deceptions created with purpose.

Banner grabbing Tools : These are tools which will capture the banner information like HTTP protocol version, underlying operating system, open ssl versions being used, server software and similar information. these are important as it will open up potential vulnerabilities in the underlying software. for ex : SSLv3 has a vulnerability known to world and can be exploited by anyone.

4 0
3 years ago
A user wants to quickly share pictures between mobile devices. The devices will be in close proximity so the necessity of a thir
BlackZzzverrR [31]

Answer:

NFC(Near Field Communication).

Explanation:

When user wants to share pictures quickly between the mobile devices which are in very close proximity we can use NFC(Near Field Communication).

Near Field Communication(NFC):-It is a group of communication protocols that lets two devices most of the times these are mobile phones to establish connection and the distance between them should be less around 4 centi meter.

8 0
3 years ago
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