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IBM Mainframe Systems Operator Level I Certificate 2.5 (V2) > z/OS Concepts > Flashcards

z/OS Concepts Flashcards

1
Q

Name that acronym

PROCLIB

A

Procedure library

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2
Q

Name that acronym

SYSRES

A

The system residence volume.

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3
Q

Name that acronym

JES

A

Job Entry Subsystem

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4
Q

Name that acronym

SVC

A

Supervisor Call

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5
Q

Supervisor Call

A

A type of program interrupt in IBM mainframe environments that is used to request services from the operating system’s supervisor

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6
Q

Explain the function of ISPF

A

Provides full-screen, menu-based interfaces to utilities and applications

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7
Q

Explain the function of TSO

A

Used to allocate files and run programs interactively and provides an environment for developers, enabling commands to be entered at a terminal.

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8
Q

Explain the function of VTAM

A

Facilitates communication between LAN-attached devices programs and terminals

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9
Q

Name that acronym

VTAM

A

Virtual Telecommunications Access Method

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10
Q

Which technology made it possible for interactive programs such as TSO to communicate with terminals without having to contain special code to deal with each terminal type?

A

Virtual Telecommunications Access Method

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11
Q

What is the usual working environment for MVS programmers and operators?

A

Interactive System Productivity Facility (ISPF)

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12
Q

What is a subsystem?

A

A system component that functions asynchronously with other components.

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13
Q

What is JES

A

The Job Entry Subsystem

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14
Q

What are the two job entry subsystems available today?

A

JES2 and JES3

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15
Q

JES2

A

JES2 receives jobs into the system, converts them to internal format, selects them for execution, processes their output, and then purges them from the system.

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16
Q

JES3

A

Same as JES2, but also in an environment with several processing units, a global JES3 program manages all job processing with the assistance of local processors.

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17
Q

Name that acronym

HSM

A

Hierarchical Storage Manager

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18
Q

Name that acronym

RACF

A

Resource Access Control Facility

19
Q

Name that acronym

SMS

A

Storage Management Subsystem

20
Q

Name that acronym

WLM

A

Workload Manager

21
Q

Name that acronym

JCL

A

Job Control Language

22
Q

Job

A

A series of steps, each entailing the execution of a program and the creation, deletion, or modification of data.

23
Q

Started Task

A

A task that is initiated by the system or by an operator’s START command entered at the console.

24
Q

Name that acronym

STC

A

Started Task

25
Q

Name that acronym

TSO/E

A

Time Sharing Option/Extensions

26
Q

Time Sharing Option/Extensions

A

Based on TSO and is a base element of z/OS. TSO is commonly used to refer to TSO/E.

27
Q

CLIST

A

A high-level interpretive language used to perform routine and complex programming tasks on TSO/E.

28
Q

True or False

All tasks started in a z/OS system require JCL to direct the computer?

A

True - Without it, a job would not run.

29
Q

What would the operator type in order to initiate VTAM startup?

A

S NET

30
Q

How are VTAM and TCP/IP similar?

A

They both are network managers for communicating between applications, users, and hardware

31
Q

How are VTAM and TCP/IP Different?

A

VTAM is IBM proprietary, while TCP/IP is open, non-proprietary network manager

32
Q

When would an organization prefer to use TCP/IP over VTAM?

A

When they have non-mainframe systems.

33
Q

True or False

Organizations are limited to using either VTAM or TCP/IP

A

False - IBM combined them into the z/OS Communication Server

34
Q

Name that acronym

WLM

A

Workload Manager

35
Q

Workload Manager

A

A background process that controls the way in which the resources of the processor complex are divided among the various jobs, started tasks, and TSO users.

36
Q

What can be used to create workload manager components?

A

ISPF

37
Q

What can be used to display, and in some cases, modify WLM resource use?

A

SDSF

38
Q

Name that acronym

SDSF

A

System Display and Search Facility

39
Q

System Display and Search Facility

A

ISPF application used to display SYSOUT data, issue system commands, and access JES2 facilities.

40
Q

Name that acronym

SYSLOG

A

System Log

41
Q

System Log

A

Used to record the communication between programs, operators, and the system.

42
Q

From where can a command be typed to gain access to SYSLOG?

A

SDSF

43
Q

What command would one type to access SYSLOG from SDSF?

A

LOG

44
Q
A

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

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