Answer:
Redundancy is the mechanism that occurs in database's data as the same data is stores in the multiple location.It creates repeated data by accident or for backup purpose.
The issues that arise due to the redundancy of the data is the storage space in database gets consumed and thus wastes the space in storing information in multiple locations.When any update occurs in the stored data's field value , it also has to be changed in the multiples occurrences.
Voice Over IP (VOIP) is the option that allows the transmission of voice and often video communication over the Internet.
So, this doesn't refer to mobile or other telephone communication, but rather to the Internet solely. Applications that are examples of this type of technology are Skype, Teamspeak, Ventrilo, and others. This technology is becoming better and better with each day and will probably replace phones completely in the future.
Your best bet is to research about it online or watch tutorials on YouTube for a better understanding :) <span />
Answer:
The third point i.e " Use an alternating least squares (ALS) algorithm to create a collaborative filtering solution" is the correct answer .
Explanation:
The Alternating Less Squares is the different approach that main objective to enhancing the loss function.The Alternating Less Squares process divided the matrix into the two factors for optimizing the loss .The divided of two factor matrix is known as item matrix or the user matrix.
- As we have to build the machine learning model which proposes restaurants to restaurants that are based on the customer information and the prior restaurant reviews the alternating least squares is the best model to implement this .
- All the other options are not the correct model also they are not related to given scenario that's why they are incorrect options.
Answer:
1. Semantic
2. modifies
Explanation:
Semantic HTML is understood by the traditional browser, and semantic tags are the one that ensures not just presentation, but also adds the meaning to the webpage. And hence, img here is both semantic as well as presentational. Hence, the first option is semantic. And the IMG modifies the meaning of the web page. The description is done by the text. And hence the second option is modified.
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