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3 years ago

Which of the following is NOT a feature of unclustered index

Computers and Technology

1 answer:

Lorico [155]3 years ago

3 0

Answer:

C. Unclustered index has the same ordering of data records as that of the data entries in the database

Explanation:

Indexes are used to split up queries in an SQL server or database management system DBMS.

There are two types of indexes namely clustered indexed and unclustered indexes.

Clustered indexes define the order in which data is stored in a table while unclustered index does not sort the order in a table.

In an unclustered index, the data table and the index are stored in different places, they are easy to maintain and update since they do not follow a particular order and there can be several indexes in a data file since the data table is stored differently from the index file.

So, all the other options except C are features of unclustered indexes since unclustered index does not have the same ordering of data records as that of the data entries in the database.

So, C is the answer.

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Create a new data frame, first_south, by subsetting titanic to include instances where a passenger is in the first class cabin (

Virty [35]

The data frame first_south is created using first_south = (titanic['Pclass']==1) & (titanic['Embarked']=='S')

<h3>How to create the data frame?</h3>

To do this, we make the following assumptions:

The pandas module has been loaded as pd
The dataset has also been loaded as titanic

When pclass column is 1.

This is represented as:

titanic['pclass']==1

When the passenger boards from Southampton.

This is represented as:

titanic['Embarked']=='S'

So, we have:

first_south = (titanic['Pclass']==1) & (titanic['Embarked']=='S')

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4 0

2 years ago

SMART PEOPLE NEEDED

mario62 [17]

D doesn't make much sense, it's valid, but not what we're looking for. B also has a correlation with D, same reasoning applies. As for A, it seems pretty legit, but I don't believe that's what we're looking for.

Choice C is the most obvious one though. We're talking about a network and as may or may not know it's a wireless one in a manner of speaking. A <span>couple of computers in the network that have trouble maintaining a signal will indefinitely lead to failure of a network since both the links and nodes of certain computer systems are incapable of maintaining a signal. </span>

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3 years ago

Match the vocabulary to the appropriate definition.

Allisa [31]

Answer:

Pulling related code together in objects is Arrays

Helps programmers when they revisit code or are new to code-- Documentation

Explanation:

This is all I know

3 0

2 years ago

In the context of the planning phase of the systems development life cycle (SDLC), which is an example of an internally identifi

erma4kov [3.2K]

Answer:

The correct option to the following question is D.).

Explanation:

SDLC stands for the System Development Life Cycle.

The aim of the SDLC is to produce the high quality of the software that exceeds or meets the reaches completions and customers' expectations with costs and time expectations.

Software Development Life Cycle is the frameworks that defining the task performed at each of the steps in software development process.

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3 years ago

How would you copy and paste?

BartSMP [9]

first you do ctrl c then you do ctrl v

4 0

2 years ago

Read 2 more answers