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IBM Mainframe Systems Operator Level I Certificate 2.5 (V2) > Working with the Mainframe > Flashcards

Working with the Mainframe Flashcards

1
Q

Where is mainframe data stored?

A

A database file or dataset

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2
Q

What is a dataset

A

An area of space occupied by a collection of related data.

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3
Q

Where is information about data in datasets stored?

A

A catalog

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4
Q

What does a catalog do for a user?

A

Catalogs whether data exists and where it can be found

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5
Q

What is the main catalog called?

A

Master Catalog

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6
Q

What can a master catalog contain?

A

Entries for both datasets and sub-catalogs (user catalogs)

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7
Q

What is a sub-catalog also called?

A

User catalog

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8
Q

Name that acronym

VTOC

A

Volume Table of Contents

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9
Q

Volume Table of Contents

A

Contains the file name and location of all datasets on that DASD volume

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10
Q

True or false

VTOL can be placed anywhere on a DASD volume?

A

True

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11
Q

Name that acronym

DFSMS

A

Data Facility Storage Management Subsystem

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12
Q

Data Facility Storage Management Subsystem

A

Used to automate data allocation and the deletion, placement, backup, and recovery of data sets

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13
Q

Name that acronym

DFSMdfp

A

Data Facility Storage Management Data Facility Product

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14
Q

Data Facility Storage Management Data Facility Product (DFSMdfp)

A

Allows you to create storage policies that are invoked when a new dataset is created.

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15
Q

Name that acronym

DFSMdss

A

Data Facility Storage Management Data Set Services

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16
Q

Data Facility Storage Management Data Set Services (DFSMdss)

A

An optional component to perform backups at the dataset and volume level.

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17
Q

True or False

DFSMdss allow the copying or moving of data to other devices?

A

True

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18
Q

Name that acronym

DFSMhsm

A

Data Facility Storage Management Hierarchical Storage Manager

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19
Q

Data Facility Storage Management Hierarchical Storage Manager (DFSMhsm)

A

Automates the movement and management of data between different types of storage media (usually cheaper, slower media)

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20
Q

Name that acronym

DFSMrmm

A

Data Facility Storage Management Removable Media Manager

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21
Q

Data Facility Storage Management Removable Media Manager(DFSMrmm)

A

Manages removable media such as tape cartridges and the automated tape libraries that house them.

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22
Q

Name that acronym

DFSMtvs

A

Data Facility Storage Management Transactional VSAM Services

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23
Q

Data Facility Storage Management Transactional VSAM Services (DFSMtvs)

A

Allows datasets to be shared between CICS, batch jobs, and object-oriented applications, while ensuring data integrity.

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24
Q

Name that acronym

zFS

A

z/OS File System

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25
Q

Name that acronym

z/OS NFS

A

z/OS Network File System

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26
Q

z/OS Network File System

A

Allows z/OS to access remote UNIX file system using TCP/IP as if it were part of the local directory tree.

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27
Q

Name that acronym

TFS

A

Temporary File System

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28
Q

Temporary File System

A

Temporary, in-memory physical file system

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29
Q

Name that acronym

UFS

A

Union File System

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30
Q

Union File System

A

Allows users to obtain a merged view of two or more directories

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31
Q

How is the UNIX file system stored?

A

As a z/OS VSAM dataset

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32
Q

What is the advantage of a UNIX file system being stored as a z/OS VSAM dataset?

A

It can reside alongside other z/OS datasets on a DASD volume.

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33
Q

You need to create a data set that contains individual members. What type of data set meets this need?

A

Partitioned

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34
Q

Which product is used to automate data allocation and deletion, and the placement, backup, and recovery of data sets?

A

DFSMS

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35
Q

True or False

An organization usually implements several master catalogs to improve the performance of a system

A

False

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36
Q

True or False

A DASD volume’s VTOC contains the file name and location of all data sets on that volume.

A

True

37
Q

True or False

The master catalog only stores entries for DASD data sets.

A

False

38
Q

True or False

The main catalog referenced by z/OS is the master catalog.

A

True

39
Q

In what type of dataset of a zFS reside?

A

A Virtual Storage Access Method (VSAM) dataset

40
Q

Name that acronym

RACF

A

Resource Access Control Facility

41
Q

Resource Access Control Facility (RACF)

A

The primary component of the IBM security server

42
Q

What is the role of RACF?

A

To provide appropriate access to the system’s resources

43
Q

Name that acronym

SAF

A

System Authorization Facility (SAF)

44
Q

System Authorization Facility (SAF)

A

Directs control to a processing routine and/or to RACF (or similar security product) for further action.

45
Q

Which RACF attribute is needed to create and maintain RADF security levels for both users and data access?

A

“Special”

46
Q

Name that acronym

RRSF

A

RACF Remote Sharing Facility

47
Q

RACF Remote Sharing Facility

A

Allows for the maintenance of RACF databases distributed throughout your enterprise environment.

48
Q

Name that acronym

MSC

A

multiple console support

49
Q

How would a security administrator provide appropriate access for MCS?

A

Through the CONSOLxx member in the SYS1.PARMLIB

50
Q

Name that acronym

CPACF

A

Central Processor Assist for Cryptographic Function

51
Q

Central Processor Assist for Cryptographic Function (CPACF)

A

A co-processor that exists in every processor unit that accelerates encryption.

52
Q

How is a Coupling Facility secured?

A

Policy-based encryption is used to secure the parallel sysplex including the coupling facilty.

53
Q

How are software appliances secured?

A

Taper protection during installation and runtime, and restricted admin access.

54
Q

How are drives secured?

A

encryption

55
Q

How can encryption be managed via policy?

A

Through policy-controlled encryption

56
Q

True or False

Policy-controlled encryption only works on z/OS datasets?

A

False, it can be used on z/OS datasets and Linux file systems

57
Q

RACF checks which item to determine whether a user has authority to access data?

A

Profiles

58
Q

What is the function of the System Authorization Facility (SAF)?

A

It is part of the z/OS operating system that provides a common interface for resource requests.

59
Q

Hyper Protect Data Controller

A

Allows any data created on these systems to be highly encrypted and protected as it is moved between the mainframe and distributed or hybrid multi-cloud environments.

60
Q

Name that acronym

TSO

A

Time Sharing Option

61
Q

Initial online access to a z/OS system is provided by a facility called

A

Time Sharing Option (TSO)

62
Q

Time Sharing Option (TSO)

A

Enables users to log into the mainframe environment and access data and use resources through a simple DOS-like environment.

63
Q

How is mainframe access facilitated?

A

Through 3270 terminal emulator

64
Q

Through what protocol does the 3270 terminal emulator work?

A

TCP/IP

65
Q

What is TN3270?

A

An implementation of Telnet that uses TCP/IP

66
Q

What protocol does the 3270 terminal emulator use?

A

TN3270

67
Q

Where are TSO commands most commonly run?

A

ISPF, within JCL, or from CLISTIS and REXX programs

68
Q

Name that acronym

ISPF

A

Interactive System Productivity Facility

69
Q

Interactive System Productivity Facility

A

A more user-friendly interface that facilitates interaction with the mainframe data by using the menu items primarily for navigation

70
Q

What does the view menu provide in ISPF?

A

Allows you to view (limited editing), or browse (no editing) data stored in partitioned or sequential data sets

71
Q

What does the Edit menu provide in ISPF?

A

Enables you to create, display, and modify existing data stored in partitioned or sequential datasets

72
Q

What does the Utilities menu provide in ISPF?

A

Used for dataset and partitioned dataset member purposes including renaming, deleting, allocating, and listing.

73
Q

What does the Command menu provide in ISPF?

A

Enables you to enter TSO commands or execute CLIST or REXX programs

74
Q

True or False

The z/OS UNIX shell can be used to access data on the mainframe?

A

True

75
Q

What command allows you to enter the UNIX shell from TSO

A

the OMVS command

76
Q

Within ISPF, what is the Utility for Unix directory listing?

A

z/OS UNIX List Utility

77
Q

True or False

The ISHELL command provides the user with access to the z/OS UNIX shell.

A

True

78
Q

True or False

TSO provides the user with a menu-driven interface to the mainframe.

A

False - This is handled by ISPF

79
Q

This is a mountable file system, which is being phased out.

A

Hierarchical File System

80
Q

This type of file system allows z/OS to access a remote UNIX file system using TCP/IP.

A

z/OS Network File System

81
Q

This file system resides in a z/OS VSAM data set.

A

z/OS File System

82
Q

This file system is a temporary, in-memory physical file system.

A

Temporary File System

83
Q

Which member of SYS1.PARMLIB contains system console authorization definitions?

A

CONSOLxx

84
Q

Which TSO command will display an ISPF panel interface that can be used to interact with z/OS UNIX?

A

ISHELL

85
Q

VSAM Dataset

A

These types of data sets are useful where individual records from the data set can be selected for processing. Several variations exist for this type of data set: KSDS, RRDS, ESDS, and Linear data sets.

86
Q

Partitioned Dataset

A

This type of data set contains individual members, which in turn contain sequential data.

87
Q

Sequential Dataset

A

This type of data set is the simplest data structure in a z/OS system. It consists of one or more records stored in physical order and processed in sequence.

88
Q

What is the purpose of the master dataset

A

It is the main catalog used to search for a data set when access to it is requested.

IBM Mainframe Systems Operator Level I Certificate 2.5 (V2) (10 decks)

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