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databases Online Quiz - 6

Description: databases Online Quiz - 6
Number of Questions: 20
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Tags: databases
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Which of the following is true about DBD ?

technology databases

  1. multiple DBD s for each database

  2. none of these

  3. cannot be used by DL/I

  4. created by a process called DBDGEN

Show answer
Correct Option: D

A segment has 3 occurrences for a parent. This segment is called a

technology databases

  1. multiple

  2. twin

  3. sibling

  4. none of these

Show answer
Correct Option: B

What information is not included in DBD

technology databases

  1. access method

  2. segment name

  3. parameter

  4. key field length

Show answer
Correct Option: C

IMS Db uses what kind of database management

technology databases

  1. network

  2. relational

  3. hierarchical

  4. object-oriented

Show answer
Correct Option: C

What is the advantage of IMS DB?

technology databases

  1. Faster access

  2. easy implementation

  3. high flexibility

  4. simple management

Show answer
Correct Option: A

Which of the following is true about DBD ?

technology databases

  1. multiple DBD s for each database

  2. cannot be used by DL/I

  3. created by a process called DBDGEN

  4. none of these

Show answer
Correct Option: C

A segment has 3 occurrences for a parent. This segment is called a

technology databases

  1. multiple

  2. twin

  3. sibling

  4. none of these

Show answer
Correct Option: B

AI Explanation

To answer this question, let's go through each option to understand why it is correct or incorrect:

Option A) Multiple - This option is incorrect because the term "multiple" is not used to describe a segment with 3 occurrences for a parent.

Option B) Twin - This option is correct because the term "twin" is used to describe a segment with 3 occurrences for a parent. In genetics, twins refer to two offspring produced from the same pregnancy. In the context of segments, a twin segment refers to a segment that occurs three times for a parent.

Option C) Sibling - This option is incorrect because the term "sibling" is not used to describe a segment with 3 occurrences for a parent. In genetics, siblings refer to individuals who share at least one common parent.

Option D) None of these - This option is incorrect because option B, "twin," is the correct answer.

The correct answer is B) Twin. This option is correct because it accurately describes a segment with 3 occurrences for a parent.

IMS Db uses what kind of database management

technology databases

  1. network

  2. relational

  3. hierarchical

  4. object-oriented

Show answer
Correct Option: C

What is the advantage of IMS DB?

technology databases

  1. Faster access

  2. easy implementation

  3. high flexibility

  4. simple management

Show answer
Correct Option: A

Which of the following is true about DBD ?
technology databases

  1. multiple DBD s for each database

  2. none of these

  3. cannot be used by DL/I

  4. created by a process called DBDGEN

Show answer
Correct Option: D

A segment has 3 occurrences for a parent. This segment is called a
technology databases

  1. multiple

  2. twin

  3. sibling

  4. none of these

Show answer
Correct Option: B

What information is not included in DBD

technology databases

  1. access method

  2. segment name

  3. parameter

  4. key field length

Show answer
Correct Option: C

Proc opt for path call
technology databases

  1. C

  2. P

  3. D

  4. K

  5. L

Show answer
Correct Option: B

Which of the following are not mentioned in PSB
technology databases

  1. Number of sensitive segments

  2. dataset

  3. Segment name

  4. Key value

Show answer
Correct Option: B

SENSEG NAME=CUSTOMER,PARENT=0, PROCOPT=K Referring to the code above, what is the purpose of the SENSEG statements?
technology databases

  1. To provide the database name

  2. To name the fields in the DBD

  3. To tell the program the data field segment sense sizes during any process stage

  4. To identify the segments in the database to which the application program is sensitive

Show answer
Correct Option: D

You issue a GNP call from a program and receive a status code of GP. Referring to the above scenario, which one of the following describes the cause of this error?

technology databases

  1. The segment level specified is not lower than the level of the established parent.

  2. There are no more segments for this message.

  3. The program has issued a call where no parent segment exists.

  4. An invalid length has been detected on a variable length record.

Show answer
Correct Option: C

AI Explanation

To answer this question, you need to have an understanding of the GNP (Generalized Node Program) and the possible status codes it can return.

The GNP is a program that is used to manipulate hierarchical data structures called segments. When you issue a GNP call from a program, you can receive various status codes as a response, indicating the success or failure of the operation.

In this scenario, the status code received is GP, and the cause of this error is described as:

C. The program has issued a call where no parent segment exists.

This means that the program has attempted to perform an operation on a segment without a valid parent segment. In a hierarchical structure, segments are organized in a parent-child relationship, where a child segment is nested within a parent segment. In order to perform operations on a child segment, a valid parent segment must exist.

Since the program issued a call where no parent segment exists, the GP status code is returned to indicate this error.

Therefore, the correct answer is C. The program has issued a call where no parent segment exists.

The first statement in a COBOL IMS program
technology databases

  1. DLITCBL

  2. CBLTDLI

  3. GOBACK

  4. PCB mask

  5. DBD

Show answer
Correct Option: A

What is the difference in coding between inserting segments into an existing database and loading a database?
technology databases

  1. The SSA must be qualified

  2. There is no difference.

  3. The key sequence of the data in loading

  4. There is no need for parentage in loading.

  5. The PCB processing options

Show answer
Correct Option: E

CALL ‘CBLTDLI’ USING ‘GU ‘ LS-PCB-MASK, WS-IO-AREA SEGMENTA*P SEGMENTC Based on above code what will be retrieved
technology databases

  1. Will retrieve segment C and parentage will be set at segment C

  2. Will retrieve segment C and parentage will be set at segment A

  3. Will retrieve segment A and parentage will be set at segment A

  4. Will retrieve segment A and parentage will be set at segment C

  5. Error out

Show answer
Correct Option: B

What status code is returned when a segment insert attempted duplicate insert?

technology databases

  1. LS

  2. A

  3. IS

  4. L

  5. II

Show answer
Correct Option: E
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