Answer:
The correct answer for the given question is 4
Explanation:
In the given code it select the vendorName, invoiceNumber, invoiceDate, invoiceTotal from vendors ,invoices table. when required condition is fullfill i.e vendors .vendorID = invoices.vendorID and invoiceTotal >= 500 .
So their are 4 column in the result set i.e vendorName, invoiceNumber, invoiceDate, invoiceTotal .
A string for sure, so answer B.
Answer:
Hadoop.
Explanation:
Apache Hadoop:- Supported by Apache foundation it is an open-source framework created for processing very large data sets.
Apache Hadoop consists of components including:
MapReduce for parallel processing.
(HDFS) Hadoop Distributed File System.
Yarn for cluster resource managementand job scheduling.
Common libraries needed by the other Hadoop subsystems.
Answer:
Directive
Explanation:
A directive access control is used to direct, confine, or control the actions of subject to force compliance with security policies. Some examples of direct access controls are: security guards, guard dogs, posted notifications, monitoring, supervising, work task procedures, and awareness training. It can also be categorized by how it is implemented; for example, it can be administrative, logical/technical, or physical.
Answer:
a while loop
Explanation:
for an example, while x<4:
the program will end when the value of x greater than 4.