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likoan [24]
3 years ago
14

An executable file that was determined to be infected with a virus was terminated from the running processes list. However, afte

r a few seconds, you discover the infected file is running again, despite no other processes appearing to be infected. What type of virus might this be?
Computers and Technology
1 answer:
Mama L [17]3 years ago
8 0

Mostly Trojan will has multiple version and I love u virus extra.

<u>Explanation:</u>

As first step workstation or desktop or laptop to scanned for virus and if any virus or malware found then it should be removed first. Operating system should be updated with latest patch, virus signature also be updated once again executed founded by virus infected.

Better to copy new exes and place in the same folder and try to execute again. If still the problem persists download antivirus software such as Norton, bit defender, Kaspersky etc. executable files affected by 15-20 viruses

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Orphan record example?
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Answer:

If we delete record number 15 in a primary table, but there's still a related table with the value of 15, we end up with an orphaned record. Here, the related table contains a foreign key value that doesn't exist in the primary key field of the primary table. This has resulted in an “orphaned record”.

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When excel follows the order of operations the formula 8 * 3 + 2 equals?
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3 years ago
Read 2 more answers
In this task, you will perform normalization on a crude table so that it could be stored as a relational database.
ryzh [129]

Answer:

Check the explanation

Explanation:

(1.) The functional dependencies based on assumptions are as follows:-

Trip determines which staff was there in the trip, the car used for the trip, the quantity of fuel used in the trip, the fill up time and the total paid of the trip.

Service station refers to its address

Car details consist of the details of license plate, odometer reading and the fuel type used in the car

fuel type and the fill up time will help to determine the cost of the fuel at that time

cost of the fuel and the quantity of fuel used will determine the total paid

From the above assumptions the functional dependencies are as follows:-

Trip ID -> Staff Name, Car Details, Service Station, Quantity, Fill Up Time, Total Paid

Service Station -> Station Address,

Car Details -> License Plate, Odometer reading, Fuel Type

Fuel Type, Fill up Time -> Cost per litre

Cost per Litre, Quantity -> Total Paid

(2.) Initially the relation is as follows:-

R (Trip ID, Staff Name, Car Details, License Plate, Odometer Reading, Service Station, Station Address, Fill up Time, Fuel type, Quantity, Cost per Litre, Total Paid)

For 1 NF there should not be composite attributes,in the above relation Staff Name and Station Address are composite attributes therefore it will be decomposed as follows:-

R (Trip ID, Staff First Name,Staff Last Name, Car Details, License Plate, Odometer Reading, Service Station, Street, City, State, Zip Code, Fill up Time, Fuel type, Quantity, Cost per Litre, Total Paid)

For 2 NF there should not be partial dependency that is non prime attribute should not dependent upon any 1 prime attribute of candidate key, since in the given relation there is only 1 candidate key which is only Trip ID, therefore the relation is already in 2 NF.

For 3 NF there should not be transitive dependency that is non prime attribute should not dependent upon the other non prime attribute, if it is present then the relation will be decomposed into sub relations, the given relation is not in 3 NF therefore it will be decomposed as follows:-

R1 (Trip ID, Staff First Name, Staff Last Name, Car Details, Service Station, Quantity, Fill up time, Total paid)

R2 (Service Station, Street, City, State, Zip Code)

R3 (Car Details, License Plate, Odometer reading, Fuel Type)

R4 (Fuel Type, Fill up Time, Cost per litre)

R5 (Cost per Litre, Quantity, Total Paid)

(3.) After the 3 NF we add the primary and foreign key constraints as follows:-

R1 (Trip ID, Staff First Name, Staff Last Name, Car Details, Service Station, Quantity, Fill up time, Total paid)

R2 (Service Station, Street, City, State, Zip Code)

R3 (Car Details, License Plate, Odometer reading, Fuel Type)

R4 (Fuel Type, Fill up Time, Cost per litre)

R5 (Cost per Litre, Quantity, Total Paid)

In the above relational schema the primary keys are represented with bold and foreign keys by italic

(4.) The ER diagram of the above relational schema using crow's foot notation are as shown in the attached image below:-

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3 years ago
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Licemer1 [7]
Since i cant see whats going on i linked an article that should fix your problem 
https://www.easeus.com/resource/fix-windows-automatic-repair-loop.html
7 0
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