In UNIX, data is written to a disk when a program issues what?
Answer: fysnc (...
In UNIX, data is written to a disk when a program issues what?
What is the UNIX System Services equivalent to: DSN=IBMUSEr.C(PGMA)?
What is the UNIX System Services equivalent to: DSN=IBMUSEr.C(PGMA)?
Answer: /u/ibmuser/c/pgm...
What is the UNIX System Services equivalent to: DSN-IBMUSER.C PDS?
What is the UNIX System Services equivalent to: DSN-IBMUSER.C PDS?
Answer: /u/ibmuser/c...
What is the UNIX System Services equivalent to: User Catalog?
What is the UNIX System Services equivalent to: User Catalog?
Answer: USER DIRECTORY /u/ibmuse...
What is the UNIX System Services equivalent to: Master Catalog Alias IBMUSER?
What is the UNIX System Services equivalent to: Master Catalog Alias IBMUSER?
Answer: ROOT ...
The integration of the ___ file system with existing ____ file system management services provides automated file system management capabilities that might not be available on other ____ platforms.
The integration of the ___ file system with existing ____ file system management services provides automated file system management capabilities that...
The ___ data set that contains the UNIX file system is a ____ data set type (a VSAM linear data set). ___ data sets and ____ data sets can reside on the same DASD volume. ____ provides commands for managing ___ space utilization.
The ___ data set that contains the UNIX file system is a ____ data set type (a VSAM linear data set). ___ data sets and ____ data sets can reside on...
The files in a ____________ ____ system are sequential files, and are accessed as byte streams.
The files in a ____________ ____ system are sequential files, and are accessed as byte streams.
Answer: The files in a hierarchical file system...
The path name is constructed of individual directory names and a file name separated by the _____________ character.
The path name is constructed of individual directory names and a file name separated by the _____________ character.
Answer: The path name is...
A fully qualified file name, which consists of the name of each directory in the path to a file plus the file name itself, can be up to ____ bytes long.
A fully qualified file name, which consists of the name of each directory in the path to a file plus the file name itself, can be up to ____ bytes long.
Answer: A...
What are the file system types in z/OS UNIX?
What are the file system types in z/OS UNIX?
Answer:
(1) System z File System (zFS)
(2) Hierarchical file system (HFS)
(3) z/OS Network File System...
_______ allows z/OS users to create UNIX file systems and file system directory trees on z/OS, and to access UNIX files on z/OS and other systems.
_______ allows z/OS users to create UNIX file systems and file system directory trees on z/OS, and to access UNIX files on z/OS and other systems.
Answer: z/OS...
There is no concept of a z/OS _______ that points directly to a file in z/OS UNIX file systems.
There is no concept of a z/OS _______ that points directly to a file in z/OS UNIX file systems.
Answer: There is no concept of a z/OS catalog...
Unlike a traditional z/OS library, a UNIX file system is ____________ and _____________.
Unlike a traditional z/OS library, a UNIX file system is ____________ and _____________.
Answer: Unlike a traditional z/OS library, a UNIX file...
________ and ________are involved in the management class construct.
________ and ________are involved in the management class construct.
Answer: DFSMShsm and DFSMSds...
Made by the System Administrator to determine which classes are used for a given data set
Made by the System Administrator to determine which classes are used for a given data set
Answer: Automatic Class Selection (ACS...
When you allocate a data set to use SMS, you specify the data set requirements through a
When you allocate a data set to use SMS, you specify the data set requirements through a
(1) Data Class
(2) Storage Class
(3) Management Clas...
Data sets allocated through SMS are called
Data sets allocated through SMS are called
Answer: System-managed data set...
What performs the essential data, storage, program, and device management functions of the system
What performs the essential data, storage, program, and device management functions of the system
Answer: DFSM...
The primary means of managing space in z/OS is through
The primary means of managing space in z/OS is through
Answer: DFSM...
What main tasks does Data Management encompass?
What main tasks does Data Management encompass?
(1) Sets aside (allocates) space on DASD volumes
(2) Automatically retrieves cataloged data sets...
Older data sets have _______ absolute numbers.
Older data sets have _______ absolute numbers.
Answer: Smalle...
Generation data sets have sequentially ordered ________ and ________ names that represent their age.
Generation data sets have sequentially ordered ________ and ________ names that represent their age.
Answer: Generation data sets have sequentially...
Within a GDG, the generation can have ____ or ______ DCB attributes and data set organization.
Within a GDG, the generation can have ____ or ______ DCB attributes and data set organization.
Answer: Within a GDG, the generation can have...
What is each data set within a Generation Data Group called?
What is each data set within a Generation Data Group called?
Answer: Generation Data Set (GDS...
Data sets created through ISPF are _____________ cataloged.
Data sets created through ISPF are _____________ cataloged.
Answer: Data sets created through ISPF are automatically cataloge...
What does the System Catalog provide?
What does the System Catalog provide?
(1) Unit Device Type
(2) Volume Name for any data set
(3) Simple look up functio...
A _____ is used to store and retrieve the UNIT and VOLUME location of a data set.
A _____ is used to store and retrieve the UNIT and VOLUME location of a data set.
Answer: System Catalo...
To find a data set that you have requested, z/OS must know three pieces of information.
To find a data set that you have requested, z/OS must know three pieces of information.
(1) Data Set Name
(2) Volume Name
(3) Uni...
All system managed DASD data sets are _________ automatically in a _______
All system managed DASD data sets are _________ automatically in a _______
Answer: All system managed DASD data sets are cataloged automatically...
Data sets can be what three types of catalogues?
Data sets can be what three types of catalogues?
(1) Cataloged
(2) Uncataloged
(3) Re - Cataloge...
What attributes do not apply for the VSAM dataset?
What attributes do not apply for the VSAM dataset?
(1) FECFM
(2) BLKSIZ...
One form of index record is the _______, which is the lowest-level index pointing to a control interval.
One form of index record is the _______, which is the lowest-level index pointing to a control interval.
Answer: One form of index record is...
VSAM is used to organize records into four types of data sets, which are
VSAM is used to organize records into four types of data sets, which are
Answer:
(1) Key Sequence Data Set (KSDS)
(2) Entry Sequence Data Set (ESDS)
(3)...
As an access method, ____ provides much more complex functions than other disk access methods. ____ keeps disk records in a unique format that is not understable by other access methods.
As an access method, ____ provides much more complex functions than other disk access methods. ____ keeps disk records in a unique format that is not...
When a member is deleted, its pointer is deleted too, so there is no mechanism to reuse its space. This wasted space is often called
When a member is deleted, its pointer is deleted too, so there is no mechanism to reuse its space. This wasted space is often called
Answer: ...
Advantages of PDS for z/OS users.
Advantages of PDS for z/OS users.
(1) Grouping of related data sets under a single name makes z/OS data
management easier. Files stored as members...
A z/OS user defines a PDS through JCL with a data set organization of __
A z/OS user defines a PDS through JCL with a data set organization of _____=__
Answer: DSORG=P...
A PDS loses space whenever a member is _______ or _____. As a result, z/OS users regularly need to ________ a PDS to _______ the ____ space.
A PDS loses space whenever a member is _______ or _____. As a result, z/OS users regularly need to ________ a PDS to _______ the ____ space.
Answer: A...
The maximum block size for routine programming methods is __ KB.
The maximum block size for routine programming methods is __ KB.
Answer: The maximum block size for routine programming methods is 65 K...
A z/OS user defines sequential data sets through job control language (JCL) with _____=__, which stands for physical sequential.
A z/OS user defines sequential data sets through job control language (JCL) with _____=__, which stands for physical sequential.
Answer: A z/OS...
In a Sequential Data set, where are new records added?
In a Sequential Data set, where are new records added?
Answer: New records are appended to the end of the data set...
The simplest data structure in a z/OS system is a __
The simplest data structure in a z/OS system is a __
Answer: Sequential Data Se...
In a VB data set, the records can have different lengths. The first four bytes of each record contain the ___, and the first two bytes of the ___ contain the ___
In a VB data set, the records can have different lengths. The first four bytes of each record contain the ___, and the first two bytes of the ___ contain...
For an FB data set, the _____ tells you the length of each record in the data set; all of the records are the same length.
For an FB data set, the _____ tells you the length of each record in the data set; all of the records are the same length.
Answer: LREC...
Logical record size (F or FB) or the maximum allowed logical record size (V or VB) for the data set. Format U records have no _____
Logical record size (F or FB) or the maximum allowed logical record size (V or VB) for the data set. Format U records have no _____
Answer: Logical...
When editing a data set with ISPF, for example, each ____ is a record.
When editing a data set with ISPF, for example, each ____ is a record.
Answer: When editing a data set with ISPF, for example, each line is...
In z/OS, there are no ____ or _______ characters to denote the end of a record.
In z/OS, there are no ____ or _______ characters to denote the end of a record.
Answer: In z/OS, there are no new line or carriage return and...
Reading or writing __________ ______ is faster than reading or writing tracks _________ ____ ___ ____, as might be the case if tracks were allocated dynamically.
Reading or writing __________ ______ is faster than reading or writing tracks _________ ____ ___ ____, as might be the case if tracks were allocated...
Newer types of data sets can have up to extents ___ per volume, or ___ extents total on multiple volumes.
Newer types of data sets can have up to extents ___ per volume, or ___ extents total on multiple volumes.
Answer: Newer types of data sets can...
Older types of data sets can have up to __ extents per volume.
Older types of data sets can have up to __ extents per volume.
Answer: 16...
When the amount of space required is expressed in blocks, you must
When the amount of space required is expressed in blocks, you must
Answer: Specify the number and average length of the blocks within the data...
The maximum length of a logical record (LRECL) is limited by the
The maximum length of a logical record (LRECL) is limited by the
Answer: Physical size of the used medi...
Each block of data on a DASD volume has a distinct location and a ______ _______, thus making it possible to find any block without extensive searching. _______ _______ can be stored and retrieved either ________ or ____________.
Each block of data on a DASD volume has a distinct location and a ______ _______, thus making it possible to find any block without extensive searching....
Logical records, when located on DASD, tape, or optical devices, are grouped within physical records named ______
Logical records, when located on DASD, tape, or optical devices, are grouped within physical records named ______
Answer: Block...
If you begin your data set name with __, the JCL processor will allocate it as a temporary data set and delete it when the job has completed.
If you begin your data set name with __, the JCL processor will allocate it as a temporary data set and delete it when the job has completed.
Ans...
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