Identify five financial risks that can be covered by insurance.

Use semaphore(s) to solve the following problem. There are three processes: P1, P2, and P3. Each process Pi has a segment of cod

Lisa [10]

Answer:

See explaination

Explanation:

Here we will use two semaphore variables to satisfy our goal

We will initialize s1=1 and s2=1 globally and they are accessed by all 3 processes and use up and down operations in following way

Code:-

s1,s2=1

P1 P2 P3

P(s1)

P(s2)

C1

V(s2) .

P(s2). .

. C2

V(s1) .

P(s1)

. . C3

V(s2)

Explanation:-

The P(s1) stands for down operation for semaphore s1 and V(s1) stands for Up operation for semaphore s1.

The Down operation on s1=1 will make it s1=0 and our process will execute ,and down on s1=0 will block the process

The Up operation on s1=0 will unblock the process and on s1=1 will be normal execution of process

Now in the above code:

1)If C1 is executed first then it means down on s1,s2 will make it zero and up on s2 will make it 1, so in that case C3 cannot execute because P3 has down operation on s1 before C3 ,so C2 will execute by performing down on s2 and after that Up on s1 will be done by P2 and then C3 can execute

So our first condition gets satisfied

2)If C1 is not executed earlier means:-

a)If C2 is executed by performing down on S2 then s2=0,so definitely C3 will be executed because down(s2) in case of C1 will block the process P1 and after C3 execute Up operation on s2 ,C1 can execute because P1 gets unblocked .

b)If C3 is executed by performing down on s1 then s1=0 ,so definitely C2 will be executed now ,because down on s1 will block the process P1 and after that P2 will perform up on s1 ,so P1 gets unblocked

So C1 will be executed after C2 and C3 ,hence our 2nd condition satisfied.

4 0

2 years ago

Suppose the CashRegister needs to support a method void undo() that undoes the addition of the preceding item. This enables a ca

a_sh-v [17]

Answer:

previousAddition instance variable

Explanation:

In order to accomplish this you would need to add a previousAddition instance variable. In this variable you would need to save the amount that was added at the end of the process. Therefore, if a mistake were to occur you can simply call the previousAddition variable which would have that amount and subtract it from the total. This would quickly reverse the mistake, and can be easily called from the undo() method.

3 0

2 years ago

Do warnings ever expire?

DIA [1.3K]

What’s a warning? how do i get one haha

7 0

2 years ago

Read 2 more answers

How does Aristotle’s Art of Rhetoric impact the effectiveness of advertisements?

eimsori [14]

Aristotle's Rhetoric has had an enormous influence on the development of the art of rhetoric. Not only authors writing in the peripatetic tradition, but also the famous Roman teachers of rhetoric, such as Cicero and Quintilian, frequently used elements stemming from the Aristotelian doctrine. Nevertheless, these authors were interested neither in an authentic interpretation of the Aristotelian works nor in the philosophical sources and backgrounds of the vocabulary that Aristotle had introduced to rhetorical theory. Thus, for two millennia the interpretation of Aristotelian rhetoric has become a matter of the history of rhetoric, not of philosophy. In the most influential manuscripts and editions, Aristotle's Rhetoric was surrounded by rhetorical works and even written speeches of other Greek and Latin authors, and was seldom interpreted in the context of the whole Corpus Aristotelicum. It was not until the last few decades that the philosophically salient features of the Aristotelian rhetoric were rediscovered: in construing a general theory of the persuasive, Aristotle applies numerous concepts and arguments that are also treated in his logical, ethical, and psychological writings. His theory of rhetorical arguments, for example, is only one further application of his general doctrine of the sullogismos, which also forms the basis of dialectic, logic, and his theory of demonstration. Another example is the concept of emotions: though emotions are one of the most important topics in the Aristotelian ethics, he nowhere offers such an illuminating account of single emotions as in the Rhetoric. Finally, it is the Rhetoric, too, that informs us about the cognitive features of language and style.

4 0

2 years ago

A2 Suggest why the Petri dish and agar jelly needed to be sterile.

Mashcka [7]

A Petri dish (Petri plate) is a shallow cylindrical glass lidded dish that is typically used to culture microorganisms (agar plates). There are glass and plastic Petri dishes, and both can be sterilized (using an autoclave) and re-used. Before being used for culture purposes, it is important to ensure that the Petri dish is not only clean, but also sterile. This helps prevent the contamination of the new culture.Agar is a polymer made up of various sub-units of galactose and various species of red algae. Although it has other uses including culinary and dentistry, agar plays an important role in microbiology as culture media for a variety of microorganisms.As compared to some of the other alternatives like gelatin, agar has a number of advantages which include:Cannot be easily degraded by microorganism Stronger Firmer than gelatin

6 0

2 years ago