JCL And VSAM Mock Test-1

1. What are the types of procedures.

INSTREAM

CATAOLOGED

OUTSTREAM

A AND b

The correct answer is "a AND b" because the question asks for the types of procedures, and both "INSTREAM" and "CATALOGED" are types of procedures. "OUTSTREAM" is not a type of procedure, so it is not included in the correct answer.

Explanation

The correct answer is "a AND b" because the question asks for the types of procedures, and both "INSTREAM" and "CATALOGED" are types of procedures. "OUTSTREAM" is not a type of procedure, so it is not included in the correct answer.

2. What are the kinds of job control statements.

JOB

EXEC

DD

ALL

The correct answer is "ALL" because "ALL" is a valid job control statement used in mainframe systems. It is used to indicate that all data sets associated with a job should be processed. This statement ensures that all necessary input and output files are included in the job execution, allowing for a comprehensive and complete job processing.

Explanation

The correct answer is "ALL" because "ALL" is a valid job control statement used in mainframe systems. It is used to indicate that all data sets associated with a job should be processed. This statement ensures that all necessary input and output files are included in the job execution, allowing for a comprehensive and complete job processing.

3. How do you skip a particular step in procedure or job.

COND

SKIP

IGNORE

NONE

The correct answer is "COND". In a procedure or job, the "COND" command is used to specify a condition that must be met in order for a particular step to be executed. If the condition is not met, the step is skipped and the program continues with the next step. This allows for more flexible and conditional execution of steps within a procedure or job.

Explanation

The correct answer is "COND". In a procedure or job, the "COND" command is used to specify a condition that must be met in order for a particular step to be executed. If the condition is not met, the step is skipped and the program continues with the next step. This allows for more flexible and conditional execution of steps within a procedure or job.

4. Alternate Index is a special Type of

KSDS

ESDS

RRDS

PS

All of the above

Alternate Index is a special type of Key Sequenced Data Set (KSDS). In a KSDS, records are stored in a sequential order based on a primary key. An Alternate Index allows for an additional key to be defined for the same data set, providing an alternative way to access and retrieve records. This can be useful when there is a need to access the data set using a different key other than the primary key. Therefore, the correct answer is KSDS.

Explanation

Alternate Index is a special type of Key Sequenced Data Set (KSDS). In a KSDS, records are stored in a sequential order based on a primary key. An Alternate Index allows for an additional key to be defined for the same data set, providing an alternative way to access and retrieve records. This can be useful when there is a need to access the data set using a different key other than the primary key. Therefore, the correct answer is KSDS.

5. If a new model is created for every new GDG it should have the same name as the GDG

True

False

If a new model is created for every new GDG, it should have the same name as the GDG. This means that each time a new GDG (Generation Data Group) is created, a corresponding model with the same name should also be created. This ensures consistency and organization in managing the GDGs and their associated models.

Explanation

If a new model is created for every new GDG, it should have the same name as the GDG. This means that each time a new GDG (Generation Data Group) is created, a corresponding model with the same name should also be created. This ensures consistency and organization in managing the GDGs and their associated models.

6. Directory blocks are ________ Bytes each.

256

6

128

32

Directory blocks are typically 256 bytes each.

Explanation

Directory blocks are typically 256 bytes each.

7. VERIFY can not be used for:

Empty dataset

LDS

A & B

None

The correct answer is A & B. This means that VERIFY cannot be used for an empty dataset or for LDS (Local Data Store). The VERIFY statement is used to check the validity of conditions in a program. However, it cannot be used when there is no data in the dataset or when working with LDS.

Explanation

The correct answer is A & B. This means that VERIFY cannot be used for an empty dataset or for LDS (Local Data Store). The VERIFY statement is used to check the validity of conditions in a program. However, it cannot be used when there is no data in the dataset or when working with LDS.

8. For how long a job can be executed continuously in a mainframe.

248 days

247 days

255 days

256 days

The correct answer is 248 days. This suggests that a job can be executed continuously for a period of 248 days on a mainframe system.

Explanation

The correct answer is 248 days. This suggests that a job can be executed continuously for a period of 248 days on a mainframe system.

9. Which parameter denotes exclusive control of the dataset.

DISP=OLD

DISP=SHR

DISP=MOD

NONE

The parameter DISP=OLD denotes exclusive control of the dataset. This means that only one program or user can have access to the dataset at a time. If DISP=OLD is specified, any other program or user trying to access the dataset will receive an error message indicating that the dataset is already in use.

Explanation

The parameter DISP=OLD denotes exclusive control of the dataset. This means that only one program or user can have access to the dataset at a time. If DISP=OLD is specified, any other program or user trying to access the dataset will receive an error message indicating that the dataset is already in use.

10. How do you access a file that had a disposition of KEEP.

By vol serial no.

Using unit no.

Using catalog

All

To access a file that had a disposition of KEEP, you can use the vol serial no. This means that you can locate and access the file by specifying the volume serial number where it is stored. This method allows you to directly access the file without needing additional information such as unit number or catalog.

Explanation

To access a file that had a disposition of KEEP, you can use the vol serial no. This means that you can locate and access the file by specifying the volume serial number where it is stored. This method allows you to directly access the file without needing additional information such as unit number or catalog.

11. Can you code Instream data in procedure.

YES

NO

BOTH

The question asks if it is possible to code Instream data in a procedure. The correct answer is "NO" because Instream data is used to provide input data to a program during execution, and it is typically coded outside of a procedure in the JCL (Job Control Language) or in a separate data file. It is not coded directly within a procedure.

Explanation

The question asks if it is possible to code Instream data in a procedure. The correct answer is "NO" because Instream data is used to provide input data to a program during execution, and it is typically coded outside of a procedure in the JCL (Job Control Language) or in a separate data file. It is not coded directly within a procedure.

12.

Default RECORDSIZE for a nonspanned dataset is -

(80 80)

(4034 32600)

(100 100)

(4089 4089)

The correct answer is (4089 4089). This answer indicates that the default record size for a nonspanned dataset is 4089 bytes.

Explanation

The correct answer is (4089 4089). This answer indicates that the default record size for a nonspanned dataset is 4089 bytes.

13. Dataset of different LRECLs cannot concatenated

True

False

The statement is false because datasets with different logical record lengths (LRECLs) can be concatenated. Concatenating datasets refers to combining them into a single dataset. While it is important for the LRECLs to be consistent within each individual dataset, it is not a requirement for them to be the same across different datasets being concatenated.

Explanation

The statement is false because datasets with different logical record lengths (LRECLs) can be concatenated. Concatenating datasets refers to combining them into a single dataset. While it is important for the LRECLs to be consistent within each individual dataset, it is not a requirement for them to be the same across different datasets being concatenated.

14. Which of the following REPRO selection parameters can be specified for an LDS?

FROMKEY

FROMADDRESS

FROMNUMBER

None

SKIP

The question is asking which REPRO selection parameters can be specified for an LDS. The options given are FROMKEY, FROMADDRESS, FROMNUMBER, None, and SKIP. The correct answer is None, indicating that no REPRO selection parameters can be specified for an LDS.

Explanation

The question is asking which REPRO selection parameters can be specified for an LDS. The options given are FROMKEY, FROMADDRESS, FROMNUMBER, None, and SKIP. The correct answer is None, indicating that no REPRO selection parameters can be specified for an LDS.

15.

At OPEN, VSAM determines processing options in following order:

JCL, Program, Catalog

Program, JCL, Catalog

JCL, Catalog, Program

Catalog, Program, JCL

None Of The above

The correct answer is Program, JCL, Catalog. This means that when processing options are determined in VSAM, the program takes precedence over the JCL and the JCL takes precedence over the catalog. This order ensures that any specific options set in the program will be followed, followed by any options set in the JCL, and finally any default options set in the catalog.

Explanation

The correct answer is Program, JCL, Catalog. This means that when processing options are determined in VSAM, the program takes precedence over the JCL and the JCL takes precedence over the catalog. This order ensures that any specific options set in the program will be followed, followed by any options set in the JCL, and finally any default options set in the catalog.