Answer:
When the element is not found we return -1.
Explanation:
When we use binary search we use BinarySearch() method of an array or list type when the element is found we return the index of the element if found if the element is not found we return -1.
We can decode this value since it is less than 0 and the indexing of arrays and lists starts with 0 upto the size-1.So -1 index is not present in the array or list.We have to check if the index is < 0 then the element is not present in the array or list.
for ex:-
if(index<0)
{
System.out.println("Element is not present in the array");
}
Answer:
B. Binary Code
Explanation:
Binary code is the base-2 system used by computers to represent data. Binary code consists of 0's and 1's which can be used to represent states such as on or off; go or no-go and more.
Comma and period? You can have numbers like 123,456.78
Answer:
gpresult
Explanation:
Group Policy provides the system administrator with settings that would be necessary to manage the different user accounts available in an organization. It also controls their work environment centrally by configuring the user Operating System (OS), applications and user accounts.
Group policy settings or configurations are referred to as Group Policy Objects (GPOs). These objects can be linked to organizational units (OUs), domains or sites.
There are various group policy commands such as;
- rstrui (System Restore tool will run),
- runas (using different permission to run a tool or program),
- tasklist (currently running programs are shown
- gpupdate (Group policies are refreshed)
- gpresult (group policy configurations are displayed for verification)
gpresult command can be used to verify the group policy configurations for adjustment or optimization. The technician can start troubleshooting from viewing the active settings, then running the rstrui to start the System Restore utility to restore the computer to an earlier date
Answer:
2. A data modelling project using a packaged data model REQUIRES A GREATER SKILL than a project not using a packaged data model.
Explanation:
1a. Review of universal models:
A data model is an abstract model that organizes elements of data and standardizes how they relate to one another and to the properties of real world entities. It has become the standard approach used towards designing databases.
A universal data model is a template data model that can be reused as a starting point or a building block to jump-start development of a data modelling project, industry specific model, logical data models.
1b. Discuss how these are being used more widely today.
*Universal data models helps professional reduce development time, improve consistency and standardization while achieving high quality models.
*Higher quality: just as architects consider blue prints before constructing a building, one should also consider data before building an app. A data model helps define the problem, enabling one to consider different approaches and choose best ones.
*By properly modelling and organization's data, the database designer can eliminate data redundancies (needless repetitions) which are a key source for inaccurate information and ineffective systems.
2. Greater and advanced skills are adequate and required when data modelling project is done using packaged data model while fewer skills are required when data modelling is done without packaged data model.
