Question Discussion & Solution

The pattern here is,

The Lungs is a part of the body’s Respiratory system.

Similarly, Heart is a part of the body’s Circulatory System.

The correct answer is option 2.

Concept:

A process control block (PCB) is a data structure used by computer operating systems to store all process-related information. A process descriptor is another name for it. The operating system creates a process control block when a process is created (initialized or installed).

Process Control is a set of system calls that perform tasks such as process creation, termination, and so on.

Process Control Functions:

• End and Abort
• Load and Execute
• Abort, end
• Create Process and Terminate Process
• Wait and Signal Event
• Allocate and free memory.

Hence the correct answer is process control.

Additional Information File Management:

File manipulation tasks such as creating, reading, and writing is handled by file management system calls.

File manipulation Functions:

• Create a file
• Delete file
• Open and close file
• Read, write, and reposition
• Get and set file attributes

Device Management:

Device management is responsible for device manipulation such as reading from and writing to devise buffers.

Device management Functions:

• Request and release device
• Logically attach/ detach devices
• Get and Set device attributes

Information Maintenance:

It handles information and its transfer between the OS and the user program.

Information Maintenance Functions:

• Get or set time and date
• Get process and device attributes

Explanation:

• The purpose of regression testing is to confirm that a recent program or code change has not adversely affected existing features.
• Regression testing is nothing but a full or partial selection of already executed test cases that are re-executed to ensure existing functionalities work fine.
• This testing is done to make sure that new code changes should not have side effects on the existing functionalities. It ensures that the old code still works once the new code changes are done.

The purpose of regression testing is to select test cases partially or fully to ensure existing functionalities work fine. Thus, regression testing is primarily related to functional testing

Need of Regression Testing

• Regression Testing is required when there is a change in requirements and code is modified according to the requirement or when one of the following has been done.
  • New feature is added to the software
  • Defect fixing
  • Performance issue fix

The correct answer is 1 i.e. propanal.

Concept:

IUPAC nomenclature:

• A systematic method of naming organic compounds.
• Naming is based on their structures.
• It is devised by the International Union of Pure and Applied chemistry.
• Many rules are followed while naming the compounds and it is different for different functional groups.
• The rules are known as IUPAC rules.

Explanation:

• This compound contains 3 carbon atoms, so its parent alkane is propane.
• It also contains an aldehyde group (-CHO-) group which is indicated by using 'al' as suffix or ending.
• So by replacing the last 'e' of butane with 'al', the name becomes propanal.
• Thus, the IUPAC name of the compound CH3CH2CHO is propanal.
• The common name of propanal is Propionaldehyde.

​Additional Information

• The chart for priority order and suffix name is given below:

The correct answer is Bundi.

• 'Navlakha' lake is located in Bundi.

Key Points

• Other lakes in Bundi
  • Kanak Sagar
    • ​Several migratory birds can be seen here.
  • Naval Sagar
    • ​Nawal Sagar Lake is an artificial lake that is a major tourist attraction.
  • Jait Sagar
    • ​It is located close to the Taragarh Fort.

​Additional Information

• Naulakha Bawdi:
  • Naulakha Bawdi was built in 1586 AD.
  • It was built by Patrani Premal Devi of Maharawal Assochan.
  • This step-well is located in the Dungarpur district of Rajasthan.​​​​​​​
  • Facts related to the Naulakha 
    • Naulakha Mahal - Udaipur 
    • Naulakha Lake - Bundi 
    • Naulakha Burj - Chittorgarh 
    • Naulakha Bawdi - Dungarpur 
    • Naulakha Gate - Ranthambore 
    • Naulakha Temple - Pali