Questions

Key Challenges of s/w testing:

1. Testing considered late in project

2. Requirements not testable

3. Integration is done after all components have been developed: This might result into full testing not being covered.

4. Complete testing is not possible

• Oracle is based on RDBMS.


• SQL is Structured Query Language.


• SQL Server is another tool for RDBMS provided by MicroSoft

By trial and error method,

P=0, Q=9, R=0 satisfies the values.

All the three statements lead to either increase in demand of goods and services or decrease in the supply. This leads to increase in general level of prices.

The correct pairing of DNA bases among the given options is guanine - cytosine.

A cumulene is a hydrocarbon with three or more cumulative double bonds. They are analogous to allenes, only having a more extensive chain. The simplest molecule in this class is butatriene, which is also called simply cumulene.

The carbons on the ends are sp² hybridized, with a p-orbital for the 'second' bond in the double bond with their neighboring carbons.

They have those sp² orbitals overlapping with the s from the hydrogen, and they have a p overlapping in the pi bond with the neighboring carbon. They also have a sigma bond with the neighboring carbon I'll get to.

The middle carbons each have two pi bonds with their neighbors, leaving sp hybridiaztion for the rest. So they have sp/sp² with the end carbons, and sp/sp with each other. (And they also have p/p in the pi bonds).

All orbital overlappings in Cumuene are :

* s/sp²

* p/p

* sp/sp²

* sp/sp