Answer:
A. The smallest building block of a wireless LAN
Explanation:
Basic service sets are a subgroup of devices within a service set that is additionally also operating with the same physical layer medium access characteristics such that they are wireless networked.
Answer:
D
Explanation:
An application sever is a server that is categorically designed to run applications.
An application server can be defined as a software framework that provides both the facilities to create web applications and also a server environment to run them. Example of an application sever is the java web application.
Applications server can be grouped into two types: page based server and component based server.
Answer:
SELECT SKU, SKU_Description
FROM INVENTORY
WHERE QuantityOnHand =0
AND QuantityOnOrder > 0;
Explanation:
Here SELECT statement is used to select SKU and SKU_Description from Inventory table. WHERE clause is basically used to check a condition. Those records are selected from the Inventory table in which the QuantityOnHand is equal to 0 and QuantityOnOrder is greater than 0. AND here is used to specify that both the conditions QuantityOnHand =0 and QuantityOnOrder > 0 should hold.
SKU stands for stock keeping unit which is used to track the Inventory and to search stock from the database or tables. QuantityOnHand is basically the total number of available items except for the items that are already taken for the sale order and QuantityOnOrder is how many items ordered from the supplier. This will help to provide information about which items are not in the warehouse currently and knowing quantity on order is important for business to so that the duplicate orders of same items can be avoided.
