- AThe JavaScript code
- BUser
- CBoth JavaScript code and User
- DIn the server
Client side Databases MCQ - Quiz
- AChrome
- BFirefox
- CIE
- DFirefox & IE
- AA collection of objects
- BA collection of named object stores
- CObjects collection
- DData collection
- AA url that directs to the value
- BA value that is similar to hash table
- CA value that tells the database how to extract an object
- DA url that redirects
- ASimplifies the transaction management
- BNeed not manage the transaction at all
- CEnhances the storage
- DCreates a link between data
- A Key
- BAddress
- CIndexes
- DValues
- A
put() - B
set() - C
get() - D
look()
- ABinary Little Object
- BBinary Large Object
- CBroken Large Object
- DBinary Small object
- AMeters
- BKilometers
- CBytes
- DPixels
- Apartition()
- Bcut()
- Csliceall()
- Dslice()
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Client side Databases MCQ - Quiz
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- A. The JavaScript code
- B. User
- C. Both JavaScript code and User
- D. In the server
Remarks:
Explanation:
Client-side databases are stored on the user's computer and are directly accessed by JavaScript code running in the browser.
The actual client-side databases are located on the user's computer and can be directly accessed by JavaScript code running in the browser.
Client-side databases are stored on the user's computer and can be directly accessed by JavaScript code in the browser.
The client-side databases that are actually used are stored on the user's computer and can be directly accessed by JavaScript code running in the browser.
- A. Chrome
- B. Firefox
- C. IE
- D. Firefox & IE
Remarks:
Explanation:
The Web SQL Database API has been implemented by Chrome, Safari, and Opera, but Firefox and IE have not adopted it and are unlikely to do so in the future.
While Chrome, Safari, and Opera have implemented the Web SQL Database API, Firefox and IE have not and are unlikely to do so.
The Web SQL Database API has been implemented by Chrome, Safari, and Opera, but it is unlikely that Firefox and IE will follow suit.
Chrome, Safari, and Opera have implemented the Web SQL Database API, but it is unlikely that Firefox and IE will do the same.
- A. A collection of objects
- B. A collection of named object stores
- C. Objects collection
- D. Data collection
Remarks:
Explanation:
In the IndexedDB API, a database is just a collection of object stores that have been given names.
A database in the IndexedDB API is simply a collection of object stores with names.
In the IndexedDB API, a database consists of named object stores.
The IndexedDB API defines a database as a collection of named object stores.
- A. A url that directs to the value
- B. A value that is similar to hash table
- C. A value that tells the database how to extract an object
- D. A url that redirects
Remarks:
Explanation:
A key path is a value that specifies how the database should extract an object's key from the object itself.
A key path is a value that tells the database how to obtain an object's key from the object itself.
A key path is a value that defines how the database should retrieve an object's key from the object.
A key path is a value that indicates to the database how to extract an object's key from the object.
- A. Simplifies the transaction management
- B. Need not manage the transaction at all
- C. Enhances the storage
- D. Creates a link between data
Remarks:
Explanation:
One of the useful aspects of the IndexedDB API is that it makes it easy to manage transactions.
- A. Key
- B. Address
- C. Indexes
- D. Values
Remarks:
Explanation:
Another advantage of the IndexedDB API is that it allows you to create indexes on object stores, which enables you to search for objects based on the values of their properties other than the primary key.
This can be useful if you need to retrieve objects from an object store using criteria other than the primary key value.
For example, you might want to search for all objects with a certain property value, or all objects within a certain range of values for a given property. By defining indexes on an object store, you can perform these types of searches efficiently.
- A. <pre class = "prettyprint"><xmp> put() </xmp></pre>
- B. <pre class = "prettyprint"><xmp> set() </xmp></pre>
- C. <pre class = "prettyprint"><xmp> get() </xmp></pre>
- D. <pre class = "prettyprint"><xmp> look() </xmp></pre>
Remarks:
Explanation:
The get() method of an object store can be used to retrieve an object.
The put() method of an object store can be used to store a new object.
Both the get() and put() methods allow you to access and modify the data stored in an object store.
- A. Binary Little Object
- B. Binary Large Object
- C. Broken Large Object
- D. Binary Small object
Remarks:
Explanation:
Blobs in JavaScript are commonly used to represent binary data and can be quite large, but neither is required: a Blob could also represent the contents of a small text file.
A Blob is an oblique reference or handle to a piece of data. The name is derived from SQL databases and means "Binary Large Object."
Blobs in JavaScript are commonly used to represent binary data and can be quite large, but neither is required: a Blob could also represent the contents of a small text file.
- A. Meters
- B. Kilometers
- C. Bytes
- D. Pixels
Remarks:
Explanation:
A Blob object represents an immutable, raw data file-like object. Blobs are used to represent data that isn't always in a JavaScript-native format.
Blobs are opaque; the only things you can do with them are determine their size in bytes, request their MIME type, and chop them up into smaller Blobs.
- A. partition()
- B. cut()
- C. sliceall()
- D. slice()
Remarks:
Explanation:
The File interface is based on the Blob interface, inheriting blob functionality and expanding it to support files on the user's system. Blobs can be stored in memory or on disc by the web browser, and they can represent truly massive chunks of data (such as video files) that are too large to fit in main memory without first being divided into smaller pieces with slice ().