IMS DB Online Quiz

Following quiz provides Multiple Choice Questions (MCQs) related to IMS DB Framework. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Q 1 - Which segment lies at the top of the hierarchy?

Answer : C

Explanation

The segment that lies at the top of the hierarchy is called the root segment. The root segment is the only segment through which all dependent segments are accessed.

Q 2 - Which of the following describes the complete physical structure of the database?

Answer : A

Explanation

DBD describes the complete physical structure of the database once all the segments have been defined.

Q 3 - What does ACBGEN stands for?

A - Access Control Blocks Generator

B - Access Control Blocks Generator

C - Access Control Blocks Generator

D - Access Control Blocks Generator

Answer : B

Explanation

ACB stands for Access Control Blocks Generator. It is used to generate ACBs.

Q 4 - In PCB which field contains the DL/I status code?

Answer : B

Explanation

Status code field contains two bytes of character data. Status code contains the DL/I status code. Spaces are moved to the status code field when DL/I completes the processing of calls successfully.

Q 5 - In PCB which field is used to define to which level an application program is sensitive?

Answer : B

Explanation

Number of sensitivity segments store four bytes binary data. It defines to which level an application program is sensitive. It represents a count of number of segments in the logical data structure.

Q 6 - What command code we used to code for Path Call?

Answer : B

Explanation

To use command codes, specify an asterisk in the 9th position of the SSA and for Path Call we code D at 10th position.

Q 7 - What is the maximum number of PCBs allowed in a PSB?

Answer : A

Explanation

There is no limit of PCBs allowed in a PSB.

Q 8 - It is not possible for a program to maintain multiple positions in a database using a single PCB. State whether true or false?

A - False

B - True

Answer : A

Explanation

This statement is incorrect as a program can maintain multiple positions in a database using a single PCB.

Q 9 - In Forward Recovery, DL/I uses the log file to store the change data. The accumulated transactions are re-posted using this log file. State whether true or false?

A - False

B - True