Operating Systems t2 part1

Review the following SDSF Job Status Filter Line and three previously submitted Jobs. PREFIX=* DEST=(ALL) OWNER=RMUI001 SYSNAME=NP JOBNAME JobID Owner Prty Queue RMUI001 TSU06576 RMUI001 15 EXECUTION STUPID JOB03861 RMUI001 1 PRINT STUPID JOB03869 RMUI001 1 PRINT JobID TSU06576 has a JOB Queue status of EXECUTION. An EXECUTION status means that the job is currently running or executing. JobID TSU06576 with an EXECUTION status is most likely which type of a JOB? Answers: A job that may take a long to time to execute. A job that is waiting to be executed at a future scheduled time. A job that was automatically assigned to you when you logon to manage your TSO, ISPF and SDSF screens and panels. A job that is executing in an infinite loop.

A job that was automatically assigned to you when you logon to manage your TSO, ISPF and SDSF screens and panels

All of the following statements concerning files or data sets are TRUE, expect Answers: A Data Set is z/OS's file system name for a file. Windows, UNIX, Linux, and Mac OS stores data and programs on a storage devices as a file. The file system does not understand the details of the content inside a file or data set. Applications, e.g., Word, a COBOL Program, etc. that stores the data or content in the file container will understand the structure of the file or data set content. A records contain unstructured information, which are stored as a collection of bytes or bits.

A records contain unstructured information, which are stored as a collection of bytes or bits

27. TSO displays three asterisk displayed on a TSO screen. What does three displayed TSO asterisks indicate? Answers: A requested TSO action has been completed press the 3270 Enter key to continue A requested TSO action has been completed with an error press the 3270 PA1 key to continue A requested TSO action has been started, wait for job to end A communication error between PCOMM and the remote mainframe has occurred. Disconnect from the session. The user session has timed out

A requested TSO action has been completed press the 3270 Enter key to continue

Which of the following BEST describes the concept of a mainframe User catalog? Answers: A storage structure that names the data sets that reside on a volume, along with information about the location and size of each data set, and other data set attributes. A storage structure that physically identifies a DASD or other storage device. A storage structure that lists data sets across volumes and physical storage devices. A storage structure that manages generations of related data sets.

A storage structure that lists data sets across volumes and physical storage devices

Which of the following statements concerning z/OS subsystems OS utilities are TRUE, except Answers: A z/OS subsystem executes in the background waiting for a request from a client to provide some type of service. A utility executes in the foreground application that may request services or information from a subsystem, or provide a routine system function. A z/OS subsystem provides functions similar to a Windows Service. A z/OS subsystem provides functions similar to a Linux daemon A z/OS utility is often describe as middleware.

A z/OS utility is often described as middleware

Which of the following statements BEST describes the function of typing =SD on the ISPF Command ==> prompt? Answers: =SD is an abbreviation of executing the SUBMIT command =SD is a command which means to navigate to the System Display and Search Facility Panel displayed in ISPF. =SD is a command which means to navigate to the System Display and Search Facility utility =SD is a command that will search for text that contains "SD"

=SD is a command which means to navigate to the System Display and Search Facility Panel displayed in ISPF

z/OS uses an application programmer user interface called ISPF. Which of the following statements BEST describes the functions of ISPF? Answers: A collection of menu-driven panels normally designed for application programmers to interact with a z/OS system. A facility allows users and administrators to be able to view and control various aspects of the mainframe's operation Provides a command line interface for system or application programmers. A communication interface enables a remote client to use TCP/IP to remotely connect to TSO.

A collection of menu driven panels normally designed for application programmers to interact with a z/os system

Which of the following BEST describes the concept of a mainframe VTOC (Volume Table of Contents)? Answers: A file structure that stores th names of data sets that reside on a volume, along with information about the location and size of each data set, and other data set attributes. A storage structure that physically identifies a DASD or other storage device. A storage structure that lists data sets across volumes and physical storage devices A storage structure that manages generations of related data sets.

A file structure that stores th names of data sets that reside on a volume, along with information about the location and size of each data set, and other data set attributes

Review the following SDSF Job Status Filter Line and three previously submitted Jobs. PREFIX=* DEST=(ALL) OWNER=RMUI001 SYSNAME=NP JOBNAME JobID Owner Prty Queue RMUI001 TSU06576 RMUI001 15 EXECUTION STUPID JOB03861 RMUI001 1 PRINT STUPID JOB03869 RMUI001 1 PRINT JobID TSU06576 has a JOB Queue status of EXECUTION. An EXECUTION status means that the job is currently running or executing. JobID TSU06576, with an Queue EXECUTION status, is most likely which type of a JOB? Selected Answer: [None Given]Answers: A job that may take a long to time to execute. A job that is waiting to be executed at a future scheduled time. A job that was automatically assigned to you when you logon to manage your TSO, ISPF and SDSF screens and panels. A job that is executing in an infinite loop

A job that was automatically assigned to you when you logon to manage your TSO, ISPF and SDSF screens and panels

Which of the following data set names is illegal? Answers: PPP.DDD ABC.RD1.$PAC ABC.JOB.COBOL H.#3.DDD. 1234

H.#3.DDD. 1234

Which of the following data set names is illegal? Answers: PPP.DDD ABC.RD1.$PAC ABC.JOB.COBOL H.#3.DDD..G1234

H.#3.DDD..G1234

Which of the following is CA Technologies proprietary, authentication, authorization, and auditing security server (subsystem), which provides security services independent of z/OS? Answers: RACF (Resource Access Control Facility) ACF2 (Access Control Facility 2) DACF (Discretionary Access Control Facility) RBACF (Role-based Access Control Facility) SAF (System Authorization Facility)

ACF2 (access control facility 2)

All of following are TRUE concerning access methods, except? Answers: An access method is a type of file system used to store data in a z/FS volume. An access method defines the techniques to store and retrieve data An access method defines organization and other data structures used to store data. An access method must be known so that a programmer can edit or browse a data set.

An access method is a type of file system used to store data in a z/FS volume

The ISPF structure used to navigate the z/OS panel interface is? Answers: Hierarchical Object Relational String based

Hierarchical

Which of the following z/OS subsystems permits the exchange of messages between applications or systems using a web service model that supports SOAP, REST, or JMS messaging protocols? Answers: CICS SDSF WebSphere IBM MQ RACF

IBM mq

Which of the following utilities is a used to managed VSAM data sets? Answers: ISPF JCL VSAM Manager SDSF IDCAMS

IDCAMS

All of the following statements describe IBM's ISPF (Interactive System Productivity Facility), EXCEPT Answers: ISP is organized by a hierarchical collection of panels or menus to simplify and guide users to execute underlying TSO text commands, such as, to allocate, rename, copy, move, or delete data sets. . ISPF provides a full-screen, text editor panel similar to Windows Notepad and Linux nano to edit JCL, application source code and datasets. ISPF provides a text-based, full-screen data set manager similar to Windows File Explorer ISPF provides a customizable text-based centralized menu system, similar to Microsoft Management Consoles (MMC), to access any z/OS text-based utilities such as, SDSF, RACF, UNIX System Services, DB2 and IMS Administration Services ISPF provides several system administration panels and commands that are used to display manage or configure jobs or system resources.

ISPF provides several system administration panels and commands that are used to display manage or configure jobs or system resources

Which of the following is NOT a common characteristic of a Batch Processing workload? Answers: Large volumes of input data to be processed Immediate output response is common. Pre-established sequence for transaction processing No user interaction required Maybe scheduled at off-peak hours

Immediate output response is common

All of the following programming languages are supported by IBM z/OS mainframes (2019), except Answers: COBOL Java C# and VB.NET C/C++ Swift

C# and VB.NET

Of the following statements concerning Partitioned Data Sets (PDS) are TRUE, except? Answers: A type of data set which contains one or more sequential files called members Information in one PDS member can be accessed quickly, directly, without disturbing adjacent members. Is frequently called a library Can only be allocated on DASD, not other storage devices like tape. Frequently used to store application program source code and JCL

Can only be allocated on DASD, not other storage devices like tape

Which of the following is IBM's proprietary, relational data base management system? Answers: VSAM IMS DB2 MySQL Oracle

DB2

Which of the following BEST concepts describes how a z/OS will process the content of a data set? Answers: DSORG parameter. FILE TYPE Parameter The LLQ of the data set file name The DASD file extension The default ACCESS Method

DSORG parameter

The SDSF Job Status Filter Line appears similar to the following example. PREFIX=* DEST=(ALL) OWNER=RMU0247 SYSNAME= The Job Status Filter OWNER=RMU0247 will display only JOBs submitted by RMU0247. What is the filtering function purpose of the PREFIX=* option? Answers: It will display any JOB Number, in this example, submitted by userid RMU0247 It will display any JOB Name, in this example, submitted by userid RMU0247 It will display any JOB Prefix, in this example, submitted by userid RMU0247 It will display any JOB Prefix that contains an asterisk, in this example, submitted by userid RMU0247 It will display any JOB Name that contains an asterisk, in this example, submitted by userid RMU0247

It will display any JOB Name, in this example, submitted by userid RMU0247

Which program language is used to submit and customize a job to be processed by JES (Job Entry Subsystem) ? Answers: Assembly (BAL) COBOL JCL Bash Scripts Batch files

JCL

Each disk, DASD or other storage device must be physically identified. All of following are examples of Physical Storage IDs, except Answers: SCSI physical storage ids include: IO Address of the host adapter (e.g., PCIe Card), bus or channel number, SCSI ID, and Logical Unit Number (LUN) Channel Path ID (CHPID), Controller Unit, Unit Number SATA Bus Number ISCSI physical storage ids include: IP address SCSI ID, and Logical Unit Number (LUN) LPAR, Support Element, Volume Name

LPAR, Support Element, Volume Name

Which of the following is NOT a common characteristic of an OLTP (Online Transaction Processing) workload? Answers: Large volumes of input data to be processed in real time Immediate response is common. 24/7 availability is normal Transaction data are entered by users Increase need for security

Large volumes of input data to be processed in real time

All of the following statements concerning Partitioned Data Sets (PDS) are TRUE, except? Answers: When space is allocated to a PDS, it specifies the data set organization parameter as DSORG=PO May be used to contain data to be processed by different applications A PDS loses space whenever a member is updated or deleted. Contains a directory block which is used to find the location of a member within the data set. Similar to a subdirectory in Windows or Linux, but a PDS cannot contain another PDS (not hierarchical).

May be used to contain data to be processed by different applications

All of the following are advantages of a PDS, except? Answers: May store an unlimited number of members within the constraint of the space allocated to the PDS Grouping of related dataset under a single name to make z/OS management easier Because the space allocated for z/OS data sets always start on a track boundary, multiple members sets may be stored on a single track. Easy to create (allocate) and manipulate using TSO, ISPF or JCL

May store an unlimited number of members within the constraint of the space allocated to the PDS

All of the following concerning the configuration of a 3270-emullator client, except Answers: An IP address or domain must be configured to identify the TCP/IP network address of the z/OS mainframe server. An TCP port number must be configured to specify to identify port number that TSO will listen to make a network location. Mouse support must be configured Optional terminal customized display colors may be configured. Optional client operating system keys, e.g., Windows, Mac, Linux, Android, IoS key, may be customized for function or program attention keys.

Mouse support must be configured

When a user first logons to z/OS the command input or option navigation line is displayed close to the bottom of the panel. How does one configure ISPF to display command input or option navigation line so that is displayed close to the top of the panel. Answers: Navigate to the ISPF SETTINGS Panel, then appropriately edit the "Command Line at Bottom Setting", and Press the ENTER to change the setting. Navigate to the ISFP Configuration Panel, then appropriately edit the "Command Line at Bottom Setting", and Press the ENTER to change the setting. Type the ISPF primary command "SET COMMAND LINE AT TOP" and press the ENTER Key to execute. Press F10 to change the settings to display command input or option navigation line so that is displayed close to the top of the panel.

Navigate to the ISPF SETTINGS Panel, then appropriately edit the "Command Line at Bottom Setting", and Press the ENTER to change the setting

If two different jobs are submitted using the identical JOB NAMEs to JES at the same time, what will happen? Answers: A JES error will occur A z/OS error will occur No error will occur. However, only one job with the duplicate job name may executed at the same a time Nothing. It is impossible to submit two jobs with the same job name.

No error will occur. However, only one job with the duplicate job name may executed at the same a time

Of the following statements concerning Partitioned Data Set Extended (PDSE) are TRUE, except? Answers: A member name cannot exceed 8 characters Periodically uses the IEBCOPY utility to remove wasted space (compress) when members are moved, updated or deleted. The directory space (block) may be expanded to store more members. Similar to a PDS, members of a PDSE must use the same access method. Grouping of related dataset under a single name to make z/OS management easier

Periodically uses the IEBCOPY utility to remove wasted space (compress) when members are moved, updated or deleted

A red, graphical letter "X" is displayed at the left corner of the TSO or ISPF display and the user cannot type anything. Which of the following statements BEST describes how to resume typing? Answers: Press the ESC Key, since it is mapped to PA1 3270 key. Press F3, to exit the screen Reconnect to TSO session. Press the tab key to navigate to the next unprotected area or field.

Press the ESC key, since it is mapped to PA1 3270 key

you view the displayed JOB Status Entry Status information for your JOB, but you cannot see any application generated reports required to be documented using a SNIPPING tool by your instructor. What is your next step? Selected Answer: [None Given]Answers: Send your instructor an email message? Press the F8 function key to page down through the Job status report until you find the report Press the F7 function key to page down through the Job status report until you find the report Press the PgDn key to page down through the Job status report until you find the reportc. Type the REPORT command to display your report.

Press the F8 function key to page down through the Job status report until you find the report

All of the following statements are TRUE about z/OS jobs, EXCEPT Answers: A unit of work or program execution that requires CPU time, system memory, storage resources (data sets), and other I/O resources. A z/OS job is started when a JCL (Job Control Language) source code (script) is used to start the job JCL statements are SUBMITTED to JES (Job Entry Subsystem). JES will determine if resources are available to be scheduled. If JCL requests resources are available the required resources will be reserved (allocated) before the job is scheduler and executed. a job and allocation (reservation) of required resources.d. The concept of a z/OS job is similar to processes or tasks used by Windows, UNIX and Linux operating systems. Programs or load modules are executed by JES (Job Entry Subsystem).

Programs or load modules are executed by JES (Job Entry Subsystem)

Under the ISPF DSLIST (Data set List) Panel you type an "I" under the Command column to display information about a single data set. Which of the following Windows utilities is most similar to function of an ISPF DSLIST "I" Command? Answers: Windows desktop File Explorer Properties dialog box Control Panel Microsoft Management Console

Properties dialog box

All of following statements are examples of text-based 3270-emmulator clients, except Answers: PuTTy I PCOMM TN3270 CompuWare Topaz IDz (IBM Developer for z Systems)

Putty

Which of the following is IBM's proprietary, authentication, authorization, and auditing security server (subsystem), which provides security services independent of z/OS? Answers: RACF (Resource Access Control Facility) ACF2 (Access Control Facility 2) DACF (Discretionary Access Control Facility) RBACF (Role-based Access Control Facility) SAF (System Authorization Facility)

RACF (Resource Access Control facility

Assume that a PDS contains a member named STEELER. Which of the following examples will correctly access the member named STEELER? Answers: RMU001.COBOL.STEELER RMU001.COBOL (STEELER) RMU001.STEELER(COBOL) RMU001.STEELER.COBOL None of the above

RMU001.COBOL (STEELER)

Given the following data set name PPP.DDD.RRR, which of the following is classified as the lowest-level qualifier (LLQ)? Answers: PPP PPP.DDD PPP.DDD.RRR RRR DDD.RRR

RRR

All of the following statements concerning Partitioned Data Set Extended (PDSE) are TRUE, except? Answers: Can only be allocated on DASD, not other devices like tape. No requirement to remove wasted space (compress) when members are moved, updated or deleted. Reduced directory search time and automatically expanded as needed. Similar to a PDS, PDSE cannot store executable modules as a member Grouping of related dataset under a single name to make z/OS management easier

Similar to a PDS, PDSE cannot store executable modules as a member

The function of the WS file for the IBM Personal Communication software (PCOMM) is to Answers: Provide temporary storage for temporary files Store a log for session transactions between the PC and remote IBM mainframe Store communication and display configurations to start PCOMM Convert ASCII transmitted data into ECBDIC Store authorized IBM user accounts and passwords

Store communication and display configurations to start PCOMM

The mainframe role which most likely is staffed by IBM and other vendors to provide technical customer support is ________? Answers: System administrator System operator System programmer System engineer Application programmer

System engineer

Cognitive Model systems that a built on batch, user online, or web service transaction processing systems that are designed to collect, maintain, and to ensure the reliability and integrity of data required by internal financial accounting systems are described as: Answers: Systems of Record. Systems of Online Transaction Processing System of Insights Systems of Engagement Systems of Big Data Analysis

Systems of record

Which of the following concepts is open source network architecture that provides services to identify mainframes and devices on a network, route communication between devices, and is managed by the z/OS Communication Server (subsystem)? Answers: TCP/IP (Transport Control and Internet Protocol) 802.x (Ethernet Communication Protocols) SNA (Systems Network Architecture) 802.1x (Wireless Ethernet communication Protocols) VTAM (Virtual Telecommunication Access Method)

TCP/IP (Transport control and internet protocol)

After a 3270-emullator client, e.g., e.g., PCOMM, connects to z System mainframe server, which of the following is the first z/OS subsystems executed? Answers: RACF TSO TN3270 ISPF LOGON

TSO

Which of the following is a command line interface (CLI) used by a z/OS operating system? Answers: CMD TSO Bash PowerShell COMMAND

TSO

All of the following statements concerning the SUBMIT command are TRUE, except Answers: The analogy of clicking on a Windows icon is similar to executing the SUBMIT command to start execution of a system or application program. The JCL (Job Control Language) is used in z/OS to start programs. Most operating systems use a Start-up programing or script language, similar to JCL, to start a system or application program. The SUBMIT command may only executed in the ISPF edit panel.

The SUBMIT command may only executed in the ISPF edit panel

Which of the following statements BEST describes the concept of Serviceability? Answers: The ability to increase processing and storage capacity to meet the needs of the organization's workload. The ability of a system failed to allow the replacement of a hardware or software component while minimizing the impact on the operational system. The design of new computer hardware, operating systems and applications to be integrated with older computer systems. The ability to conduct automated extensive tests to identify potential problems that will impact the availability of the system. The ability to recover from minor or extensive hardware failures without impacting the rest of the running system.

The ability of a system failed to allow the replacement of a hardware or software component while minimizing the impact on the operational system

Which of the following statements BEST describes the concept of Reliability? Answers: The ability to increase processing and storage capacity to meet the needs of the organization's workload. The design of existing computer hardware, operating systems and applications to take into consideration the future changes in the system The design of new computer hardware, operating systems and applications to be integrated with older computer systems. The ability to conduct automated extensive tests to identify potential problems that will impact the availability of the system. The ability to recover from minor or extensive hardware failures without impacting the rest of the running system.

The ability to conduct automated extensive tests to identify potential problems that will impact the availability of the system

Which of the following statements BEST describes the concept of Scalability? Selected Answer: [None Given]Answers: The ability to increase processing and storage capacity to meet the needs of the organization's workload. The design of existing computer hardware, operating systems and applications to take into consideration the future changes in the system The design of new computer hardware, operating systems and applications to be integrated with older computer systems. The ability to conduct automated extensive tests to identify potential problems that will impact the availability of the system. The ability to recover from minor or extensive hardware failures without impacting the rest of the running system.

The ability to increase processing and storage capacity to meet the needs of the organization's workload

Which of the following statements BEST describes the concept of Availability? Answers: The ability to increase processing and storage capacity to meet the needs of the organization's workload. The ability of a system failed to allow the replacement of a hardware or software component while minimizing the impact on the operational system. The design of new computer hardware, operating systems and applications to be integrated with older computer systems. The ability to conduct automated extensive tests to identify potential problems that will impact the availability of the system. The ability to recover from minor or extensive hardware failures without impacting the rest of the running system.

The ability to recover from minor or extensive hardware failures without impacting the rest of the running system

Review the following SDSF Job Status Filter Line and three previously submitted Jobs. PREFIX=* DEST=(ALL) OWNER=RMUI001 SYSNAME= NP JOBNAME JobID Owner Prty Queue RMUI001 TSU06576 RMUI001 15 EXECUTION STUPID JOB03861 RMUI001 1 PRINT STUPID JOB03869 RMUI001 1 PRINT Which of the following statements BEST describes the process of viewing JCL or COBOL syntax errors for JOB03861? Answers: Type and executed the SDSF command P under the NP column on the JOB03861 JOB status entry line. Type and executed the SDSF command E under the NP column on the JOB03861 JOB status entry line. Type and executed the SDSF command S under the NP column on the JOB03861 JOB status entry line. Type and executed the SDSF command V under the NP column on the JOB03861 JOB status entry line.

Type and executed the SDSF command S under the NP column on the JOB03861 JOB status entry line

Which of the following statements BEST describes how to LOGOFF from TSO? Answers: Type the ISPF EXIT command and press the ENTER key to execute. Type the =X ISPF primary command and press the ENTER key to execute the command Type the ISPF LOGOFF primary command and press the ENTER key to execute the commandPress the F11 key. Click on the EXIT button appropriate for your 3237-emulator program

Type the =X ISPF primary command and press the ENTER key to execute the command

Where would one find JCL and COBOL syntax errors? Answers: In the JCL data member Under the Job name in ISPF Under the Job name in SDSF In the COBOL source code

Under the job name in SDSF

The z File system was designed for storage efficiency and high performance required for transaction processing workloads. However, the z File system was not designed to be flexible to support many different file types (file content) or hierarchical organization as Windows NTFS file systems supports. All of the following statements BEST describes alternatives to implement a flexible file system similar to Windows file systems, except Answers: Upgrade to z/OS Version 2.4 Install z Linux on the mainframe with an appropriate file system z/OS also supports the UNIX file system Install and configure Samba on zLinux or Unix System Services to communicate with a remote Windows server file system.

Upgrade to z/OS version 2.4

All of following statements concerning the traditional 3270-Terminal keyboard and 3270-emmulators are TRUE, except Answers: Uses Function Keys, labeled F1 to F12, to execute commands for TSO, ISPF, SDSF and many other z/OS system and application programs. Uses Program Attention Keys. labeled PA1 to PA3, to execute system TSO functions to exit (stop) an executing TSO program, clear the terminal screen. Uses an ENTER key or other key-sequence to transmit the current displayed command to TSO to be executed. Uses a mouse to select, copy/cut-and-paste displayed text information. Support 3270-terminal keys are not supported by Windows or MAC keyboards, and alternative keys or key-sequences may be required to be mapped or assigned to provide TSO functions.

Uses a mouse to select, copy/cut-and-paste displayed

Which of the following is an enhanced z/OS data type and an access method that is not directly managed by z/OS file system? Answers: Partitioned data set IMS VSAM VTOC IDCAMS

VSAM

Which of the following statements BEST describes the relationship between VSAM and the DB2 database management system? Answers: VSAM is a competing data base managements system to DB2. VSAM provides the underlying data storage structures for DB2. VSAM must be accessed and control by the DB2 or IMS database management systems. There are no relationships between VSAM and the DB2 database management system

VSAM provides the underlying data storage structures for DB2

Which of the following is IBM's proprietary, low-level telecommunication protocol that provides communication services between mainframes and communication devices, is a part of the System Network Architecture, and is managed by the z/OS Communication Server (subsystem)? Answers: TCP/IP (Transport Control and Internet Protocol) 802.x (Ethernet Communication Protocols) SNA (Systems Network Architecture) 802.1x (Wireless Ethernet communication Protocols) VTAM (Virtual Telecommunication Access Method)

VTAM (virtual telecommunication access method)

All of the following operating systems are supported by IBM z/OS mainframes (2019), except Answers: Windows Server RedHat Linux SuSE Linux Ubuntu Linuxd. Postfix UNIX

Windows server

All of the following statements concerning the content of files or data sets are TRUE, expect Answers: Data or information, such as employee name, address, and phone number, for an employee information file or data set are normally stored as logical records. Data stored as collection of bytes or bits, is classified as unstructured data. Windows file extensions are associated with a program that understand the content of a file, Within a z/OS data set name, the Low Level Qualifier (LLQ) specifies the type, or content of a data set. .DOCX or .XLSX are examples of Windows file extensions or file types.

Within a z/OS data set name, the Low Level Qualifier (LLQ) specifies the type, or content of a data set

Concerning the rules for naming a data set, which of the following statements is FALSE? Answers: A data set name must be unique. A data set name may one contain one or more name segment names. A data set name many not contain more than four segments. Named segments are separated by a period. Another name for a segment is "qualifier".

a data set name many not contain more than four segments

All of the following statement concerning the physical structure of a traditional DASD are TRUE, except? Answers: A DASD contains cylinders A cylinder contains tracks A track contains blocks A track contains records

a track contains blocks

The mainframe role which most likely will design, build, unit test and deliver applications to company's users and customers is _______? Answers: System administrator System operator System programmer System engineer Application programmer

application programmer

Which of the following is a command line interface (CLI) used by a Linux operating system? Answers: CMD TSO Bash ISPF COMMAND

bash

The physical unit of data retrieved by a disk and returned to z/OS for processing by an application is called a(n) ___________? Answers: block logical record allocation extent

block

All of the following are features for the IBM Personal Communication software (PCOMM), except? Answers: Executes on Window-based computer Provides TCP/IP connectivity to a remote IBM mainframe Converts the 8-bit ASCII binary code to EBCDIC Maps PC keyboards to the IBM3270 keyboard Copies files between local PCs and a remote IBM mainframe

copies files between local pcs and a remote IBM mainframe

SDSF (System Display and Search Facility) may be used to display information and status about the mainframe hardware by using the /D command. Which of the following Windows utilities is most similar to function of SDSF JOB /D to display hardware information and status mainframe hardware? Answers: Device Manager Task Manager Properties dialog box Control Panel Microsoft Management Console

device manager

A z/FS mainframe DASD is another name for a __________? Answers: data set disk drive label VTOC HBA

disk drive

After a user has authenticated their userid and password to RACF for the first time, the user will immediately be required to: Answers: Configure their mouse and display color options Type ISPF to start ISPF Enter and verify a new password Configure the IP address and Port Number

enter and verify a new password

IBM mainframes provides for hardware (LPAR) and software virtualization (z/VM). The concept of virtualization BEST relates to which of the following categories used to compare computer systems? Answers: Reliability Availability Environmentally Friendly Scalability Security

environmentally friendly

Which of the following statements BEST describes how to LOGOFF from TSO? Answers: Exit ISPF, type the TSO EXIT command and press the ENTER key to execute. Type the =E ISPF primary command and press the ENTER key to execute the command Type the ISPF LOGOFF primary command and press the ENTER key to execute the commandPress the F11 key. Exit ISPF, type the TSO LOGOFF command and press the ENTER key to execute. Click on the EXIT button appropriate for your 3237-emulator program

exit ispf type the tso logoff command and press the enter key to execute

You view the header DSLIST (Data set List) in the upper left-hand corner of an ISPF panel. Which of the following Windows utilities is most similar to function of an ISPF DSLIST Panel? Answers: Windows desktop File Explorer Properties dialog box Control Panel Microsoft Management Console

file explorer

Which of the following BEST describes the concept of Rexx as used in mainframes? Answers: is a replacement procedural program language for JCL is an interpreted, program language that is used for system administration and automation is a NOSQL database procedural language used to provide virtualization and cloud services supplements UNIX System Services

is an interpreted, program language that is used for system administration and automation

Which of the following is a hierarchical, menu-based user interface used by the z/OS operating system?a Linux operating system? Answers: CMD TSO Bash ISPF COMMAND

ispf

The unit of information that will be processed by an application, e.g., COBOL, Java, C++, etc., is called a(n) ___________? Answers: block logical record physical record extent allocation

logical record

A block is a structure that contains a group of _______ that are accessed using one READ/WRITE I/O process to improve processing efficiency. Answers: cylinders logical records clusters extents

logical records

Under the ISPF Primary Option Panel. a customized menu titled "Other Installed Products" displays a two-character abbreviations, which is used to quickly navigate to other z/OS system utilities that used to manage other z/OS subsystems, such as SDSF, RACF, DB2, and OSHELL (UNIX) Which of the following Windows utilities is most similar to function of an ISPF customized menu titled "Other Installed Products"? Answers: Device Manager File Explorer Properties dialog box Control Panel Microsoft Management Console

microsoft management console

Assume that a PDS contains a member named ROBERTMORRIS. Which of the following will correctly access the member named ROBERTMORRIS? Answers: RMU001.COBOL.ROBERTMORRIS RMU001.COBOL (ROBERTMORRIS) RMU001.ROBERTMORRIS(COBOL) RMU001.ROBERTMORRIS.COBOL None of the above

none of the above

Concerning the concepts of a block and logical records, which of the following statements is TRUE? Answers: A block is logical subdivision of a volume One logical record contains one more blocks One block contains one or logical records A block is synonymous with the concept of an extent.

one block contains one or logical records

A z/FS library is a collection of members stored as a ________? Answers: record VTOC keyed-sequenced data set partitioned data set logical partition (LPAR)

partitioned data set

Which of the following statements BEST describes how to exit any ISPF panel, save any changes, and returns to the previous panel or TSO? Answers: Press the F3 key. Press the F8 key. Press the F11 key. Press the ENTER Key. Press the Return key.

press the f3 key

If your 3270-emulator does not support a mouse, what is the recommended method to move the cursor between TSO or ISPF unprotected fields? Answers: Press the F3 key. Press the F8 key. Press the F11 key. Press the Tab Key. Press an arrow key.

press the tab key

The mainframe role which most likely ensures that batch workloads run to completion without error and delay is _______? Answers: Production control analyst System operator System programmer System engineer Application programmer

production control analyst

A partitioned data set is used to store Answers: indexed files VSAM files program development files like source programs and JCL jobs one or more libraries

program development files like source programs and JCL jobs

During a 3270-emullator client logon process, which of the following z/OS subsystems, will authenticate a z/OS userid and password? Answers: RACF TSO TN3270 ISPF LOGON

racf

The basic unit of stored information for non-VSAM data sets that contains a fixed number of bytes is called a _______? Answers: catalog cluster t record DASD VTOC

record

The security concept(s) designed to prevent anyone person from having unlimited access to resources, any appearance of conflict of interest, wrongful acts, fraud, abuse and errors is called? Answers: Authentication and Authorization Principle of Least Privilege Separation of Duties Confidentiality Non-repudiation

separation of duties

All of the following are examples of worldwide IT industries who require large-scale, high availability, and EAL 5+ secured transaction processing and are dominated by IBM z Systems architectures (2019), except Answers: Financial, insurance and banking transaction processing social media credit card and ATM transaction processing block chain transaction processing Health care. IRS and Medicare transaction processing

social media

The mainframe role which most likely maintains security resource control lists, users and user profiles, network connectivity and monitors system performance is ______? Answers: System administrator System operator System programmer System engineer Application programmer

system administrator

The mainframe role which most likely maintains security resource control lists, users and user profiles, network connectivity and monitors system performance is _______? Answers: System administrator System operator System programmer System engineer Application programmer

system administrator

The mainframe role which most likely maintains security resource control lists, users and user profiles, network connectivity and monitors system performance is Answers: System administrators System operator System programmer System engineer Application programmer

system administrators

Cognitive Model systems that are designed to aggregate, consolidate and analysis of structured or unstructured transactional data to support "quality" decisions, discover trends and make predictions are described as: Answers: Systems of Record. Systems of Online Transaction Processing System of Insights Systems of Engagement Systems of Bug Data Analysis

system of insights

The Cognitive Model introduced a more complex model to describe information processing systems as compared to the previous transaction processing categories, such as batch processing, online transaction processing and online line analytic process. All of the following are examples of the Cognitive Models, except Answers: Systems of Online Transaction Processing System of Insights Systems of Engagement Systems of Record.

system of record

The mainframe role which most likely consults with the run book, monitors console messages and is responsible for starting, stopping and restarting major subsystems is ______? Answers: System administrator System operator System programmer System engineer Application programmer

system operator

The mainframe role which most likely monitors and controls the operation of the mainframe operation of hardware and software is ______? Answers: System administrator System operator System programmer System engineer Application programmer

system operator

The mainframe role which most likely installs, customizes and maintains the operating system is _____? Answers: Production control analyst System operator System programmer System engineer Application programmer

system programmer

The mainframe role which most likely plans hardware and software system upgrade, automates operation, runs installation jobs and script, optimizes system performance and performs integration testing on new applications is ________? Answers: System administrator System operator System programmer System engineer Application programmer

system programner

Cognitive Model systems that are designed to collect unstructured data from customers, employees, vendors, and other sources, such as, email, web searching apps, social applications, platform businesses, and open source communities from a variety mobile, Internet of Things, GPS and other behavior tracking technologies are described as: Answers: Systems of Record. Systems of Online Transaction Processing System of Insights Systems of Engagement Systems of Batch Processing

systems of engagement

SDSF (System Display and Search Facility) may be used to display the status of executing or completed jobs, or tasks. Which of the following Windows utilities is most similar to function of SDSF JOB Status panel? Answers: Device Manager Task Manager Properties dialog box Control Panel Microsoft Management Console

task manager

After a user has authenticated their userid and password to RACF, an error message similar to "Already Logon" is displayed. Which of the following statements BEST describes the "Already Logon" error message? Answers: A hacker is attempting to access your userid. You have configured an incorrect IP address and the userid is being used by another mainframe server TSO limits user sessions to one session per userid. The user did not LOGOFF from RACF from a previous session and simply disconnected from the user session. There are duplicate z/OS userids. Contact the system administrator.

the user did not LOGOFF from RACF from a previous session and simply disconnected from the user session

All of the following are popular conventions used for HLQ segment names, except? Answers: to designate the ownership of a data set to specify security or scope of use for a data set to specify the segment name used by user catalogs to describe the type of content of a data set

to describe the type of content of a data set

Which of the following is popular convention used for LLQ segment names? Answers: to designate the ownership of a data set to specify security or scope of use for a data set to specify the segment name used by user catalogs to describe the unique name qualifier for a data set name

to describe the unique name qualifier for a data set name

Key Sequence Data Set (KSDS), Entry Sequence Data Set (ESDS), Relative Record Data Set (RRDS), and Linear Data Sets (LDS) are examples of? Answers: types of data set record formats types of data set access methods types of data set types types of data set allocation methods types of VSAM data sets

types of VSAM data sets

F (Fixed), FB (Fixed Blocked), V (Variable), VB (Variable Blocked), and U (Undefined) are examples of? Answers: types of data set record formats types of data set access methods types data set types of data set allocation methods types of VSAM data sets

types of data set record formats

Which of the following is a Type-1 mainframe software virtualization manager that supports z/OS virtual machines? Answers: VMware z/VM LPAR KVM Citrix

z/VM

Which of the following z/OS subsystems, introduced in 1969, provides a remote user interface based on map sets and HTML web pages, that executes dynamic COBOL and Java Liberty applications, supports web services technologies to support "large-scale" application transaction processing workloads, such as ATM and credit card processing. Answers: CICS SDSF WebSphere IBM MQ RACF

CICS

Which of the following is a command line interface (CLI) used by a Windows operating system? Answers: CMD TSO Bash Bourne COMMAND

CMD

Which of the following is NOT an example of a typical Batch Processing workload? Answers: Report generation of business statistics required by managers Backup of critical files and databases Customer balance inquiries of bank tellers and ATM machines Validation of submitted IRS Form 1020 (Federal Income Taxes) Extracting data from transactional database, transforming and storing the results in a data warehouse

Customer balance inquiries of bank tellers and atm machines

All of following statements concerning a 3270-emmulator client are TRUE, except To access a client to a System z mainframe server using the TCP/IP over the Internet To upload or download files (datasets) between a client and a System z mainframe server. Convert ASCII binary-coded characters, which are understood by your client to EBCDIC binary-coded characters, which are understood by the mainframe server. Map a Windows or MAC keyboard layout to a 3270-terminal keyboard.

To upload or download files (datasets) between a client and a system z mainframe server

Which of the following statements BEST describes the difference between a command line interface (CLI) and a Graphical User Interface (GUI) interface? Answers: A CLI requires users to type and execute a text command or start applications at a command prompt; whereas, a GUI requires users to type and execute a text command or start applications on a desktop. A CLI requires users to type and execute a text command at a command prompt; whereas, a GUI requires users to select most commands or start applications by selecting a menu option or by clicking on an icon. A CLI provides fewer text commands or fewer command options than a GUI. A CLI interfaces are less secure than a GUI. A CLI cannot code multiple commands to be executed and stored in a script file; whereas, a CLI may use Windows PowerShell or Notepad to code multiple commands to be executed and stored in a file.

A CLI requires users to type and execute a text command at a command prompt; whereas, a GUI requires users to select most commands or start applications by selecting a menu option or by clicking on an icon

After submitting a JCL job that compiles, links and executes a COBOL application, you see a JES message displayed as MAXCC=0008. All of the following statements are examples of an MAXCC=0008 error, except Selected Answer: [None Given]Answers: A JCL syntax error was encountered. The application program may have forgot to code a period at the end of the COBOL statement and this caused a COBOL syntax error. The application program may have forgot to match a set of quotation marks and this caused a COBOL syntax error.

A JCL syntax error was encountered

After submitting a JCL job that compiles, links and executes a COBOL application, you see a JES message displayed as MAXCC=0000. All of the following statements concerning MAXCC are TRUE, except Answers: MAXCC is an acronym to describe the Maximum Error Condition of a submitted JCL job. A MAXCC=0000 value indicates that were no JCL errors found. A MAXCC=0000 value indicates that were no application program syntax errors were found. A MAXCC=0000 value indicates that were no z/OS system execution time system error or data set errors were found, such as, data set not found. A MAXCC=0000 value indicates that were no charges for the execution of your job assigned to your account.

A MAXCC=0000 value indicates that were no charges for the execution of your job assigned to your accoun

All of the following statements are TRUE concerning alternative z/FS Disk Organization content structure to data sets, except Answers: A Sequential Data Set (PS DSORG) is a collection of records written and read in sequential order from beginning to end. Partitioned Data Set (PO DSORG) is the classical dataset that contains a directory structure and sequential members. A Member Data Set (MDS) is collection of program source programs or load modules designed for application programmers. A Library Data Sets is an alternative name for a Partitioned Data Set - Extendedc. A Partitioned Data Set - Extended (PO-E DSORG)) is a modern version of the older partitioned dataset organization and is called a LIBRARY.

A Member Data Set (MDS) is collection of program source programs or load modules designed for application programmers

Which of the following statements BEST describes the type of information, an application or system programmer may see when they view the SDSF Job Status panel? Answers: One may view a list of all currently executing z/OS jobs or previously executed z/OS jobs for a userid. Within a job status details one may view a report which will display JCL or other runtime errors that prevent the job from being executed. Within a job status details one may view a report which will display syntax errors for COBOL, Java or C++ source code programs that prevent the job from being executed. Within a job status details one may view printed output, such as a business report, generated during the execution of a COBOL, Java or C++ application program. All of above are examples of the type of information an application or system programmer may see when they view the SDSF Job Status entry

All of above are examples of the type of information an application or system programmer may see when they view the SDSF Job Status entry

All of the following are a sample of major corporate entities who continue to rely IBM z/OS mainframe servers (2019), except Answers: Amazon, Google, or Facebook J.P. Morgan Chase , Wells Fargo, Rocket Mortgage (Quicken Loans), or Bank of America Blue Cross/Blue Shield, Aetna Health Care, or Highmark State Farm, Geico, New York Life Wallmart, Federated Department Stores, Home Depot, Costco, Target or Lowes

Amazon, google, or facebook

Which of the following BEST describes where one may execute the SUBMIT command? Answers: The TSO command prompt: READY At the ISPF Primary Option or Command Line At the SDSF Command Line Any of the previous methods maybe used to execute the SUBMIT command statements

Any of the previous methods maybe used to execute the SUBMIT command statements

How is Apache used on mainframes? Answers: Apache is a popular static web (HTTP) server, which runs under z/OS Apache is a popular static web (HTTP) server, which runs under Unix System Services Apache is a popular J2EE application server, which runs under z/OS Apache is a popular J2EE application server, which runs under Unix System Services Apache is a popular messaging or web service server, which runs under Unix System Services

Apache is a popular static web (HTTP) server, which runs under Unix System Services

By default when you first view the SDSF Job Status panel either NO submitted job entries will be displayed or all CURRENT executing and recently submitted and completes JOBs will be displayed. To control the type or number submitted jobs that will be displayed by SDSF for your view, one should configure which of the following. Answers: Configure the SDSF Job Status Filter Configure the SDSF Settings Menu Configure the SDSF Job Status Settings Configure the SDSF Job View Settings Configure the ISPF Settings Menu

Configure the SDSF job status filter

Which of the following statements BEST describes the command that will execute an application program, such as compile, link and execute a COBOL program, one would _______. Answers: Enter the RUN command and COBOL program name at the TSO prompt Enter the SUBMIT command to execute the appropriate JCL job Enter the SUBMIT command to execute the COBOL source code Enter the CLG command on the command line of ISPF

Enter the SUBMIT command to execute the appropriate JCL job

There are three primary JCL statements: JOB, EXEC and DD. Which of the following statements BEST describes how application and system programmers, JES or z/OS, distinguish valid JCL statements from COBOL, C, Java, or other application program language statements. Answers: JCL statements always begin //* characters in the first three columns; whereas, these characters would be invalid in application programming languages. JCL statements always begin // characters in the first two columns; whereas, these characters would be invalid in application programming languages. JCL statements always begin "JCL" characters in the first three columns; whereas, these characters would be invalid in application programming languages. JCL statements always begin * character in the first column; whereas, these characters would be invalid in application programming languages.d. JCL statements always begin # character in the first column; whereas, these characters would be invalid in application programming languages.

JCL statements always begin // characters in the first two columns; whereas, these characters would be invalid in application programming languages

Which of the following is responsible for assigning a "unique job number" to each executing job? Answers: JES SDSF z/OS application programmer system programmer

JES

Which of the following z/OS subsystem will receive submitted jobs to be processed by z/OS operating system, reviews JCL statements to determine the resources required for a job, schedules the job using various priority queues, manages process flow, and then reports output status information at the end of execution? Answers: TSO JES BCP JOBS Manager SDSF

JES

The name by which a job is known to JES is a(n) _______. Answers: Job name DD name Process ID Address space identifier

Job Name

The most popularly used VSAM data set is? Answers: Key Sequence Data Set (KSDS) Entry Sequence Data Set (ESDS) Relative Record Data Set (RRDS) Linear Data Sets (LDS) PDS and PDSE

Key sequence data set (KSDS)

Which of the following is a mainframe firmware based division of a computer's processors, memory, and storage into multiple sets of resources so that each set of resources can be operated independently with its own operating system instance and applications? Answers: VMware z/VM LPAR KVM Citrix

LPAR

A file system is a collection of operating system program that logically organizes stored data in a useful manner that will allocate, access and manage data files or data sets. All of the following statements concerning file systems are TRUE, except Answers: Traditional magnetic or solid state physical disks (DASD) often organizes physical units of storage in technologies called cylinders, tracks and sectors or cell rows and columns. One uses a file system every time one Names, Opens, Saves, Modifies or Deletes a data file, data set, or application program. Microsoft created the first file system, named FAT, to support the original IBM personal computer There are many types of file system, such as, OS360 (z FS), NTFS, and Linux ext-4 or ReiserFS, ISO 9660, which have been designed for different types of storage media, storage and performance efficiency, and operating systems. Introduced in March 2017, the new Apple File System (APFS) v. High Sierra, proprietary file system is now replacing Apples support for underlying HFS, Linux file systems.

Microsoft created the first file system, named FAT, to support the original IBM personal

Which of the following is NOT a common characteristic of an OLAP (Online Analytic Processing) workload? Answers: Computational intensive workload to selectively extract and query data in order to analyze it from different points of view to support decision making. OLAP workloads can be processed in batch mode or real time. Normally requires less computing resources or data volumes than batch processing The goal of OLAP workload is to support decision making, rather than transaction processing. OLAP workloads may be integrated into online transaction processing applications.

Normally requires less computing resources or data volumes than batch processing

If two jobs are submitted by a user to JES using the same job number at the same time, what will happen? Answers: A JES error will occur. A z/OS error will occur. Nothing. Only one job with duplicate job number can be executed at the same time. Nothing. It is impossible to submit two jobs with the same job number.

Nothing. It is impossible to submit two jobs with the same job number

Given the following data set name PPP.DDD.RRR, which of the following is classified as the high-level qualifier (HLQ)? Answers: PPP PPP.DDD PPP.DDD.RRR RRR DDD.RRR

PPP

Which of the following data set names is illegal? Answers: PPP.DDD. ABC.RD1.$PAC ABC.JOB.COBOL H.#3.DDD.G1234

PPP.DDD.

A Windows server is limited to Windows security facilities and enhancements. A z/OS mainframe kernel permits the use and provides connections to alternative, competing security servers (subsystems) or other customized through security enhancements, though which of the following security interfaces? Answers: RACF (Resource Access Control Facility) ACF2 (Access Control Facility 2) DACF (Discretionary Access Control Facility) RBACF (Role-based Access Control Facility) SAF (System Authorization Facility)

SAF (system authorization facility)

Which of the following z/OS subsystems allows application or system programmers to monitor, control, and review the status of jobs, or view job status reports and errors? Answers: TASKS JES BCP JOB Manager SDSF

SDSF

Which of the following z/OS utility allows application or system programmers to view the system log, display system information, or start or stop subsystems? Answers: Task Manger JES Device Manager JOB Manager SDSF

SDSF

The SDSF Job Status Filter Line appears similar to the following example PREFIX=* DEST=(ALL) OWNER=RMU0247 SYSNAME= If you do not see the SDSF Job Status Filter Line displayed, which of the following commands will display this line. Answers: OWNER RMU0247 DEST ALL SET FILTER ON SET DISPLAY ON FILTER ON

SET DISPLAY ON

Which of the following concepts is IBM's proprietary, network architecture that provides services to identify mainframes and devices on a network, route communication between devices, and is managed by the z/OS Communication Server (subsystem)? Answers: TCP/IP (Transport Control and Internet Protocol) 802.x (Ethernet Communication Protocols) SNA (Systems Network Architecture) 802.1x (Wireless Ethernet communication protocols) VTAM (Virtual Telecommunication Access Method)

SNA (Systems network architecture)

Which of the following statements BEST describes the concept of Compatibility? Answers: The ability to increase processing and storage capacity to meet the needs of the organization's workload. The design of existing computer hardware, operating systems and applications to take into consideration the future changes in the system The design of new computer hardware, operating systems and applications to be integrated with older computer systems. The ability to conduct automated extensive tests to identify potential problems that will impact the availability of the system. The ability to recover from minor or extensive hardware failures without impacting the rest of the running system.

The design of new computer hardware, operating systems and applications to be integrated with older computer systems.

Which of the following statements BEST describes the concept of Extensibility? Answers: The ability to increase processing and storage capacity to meet the needs of the organization's workload. The design of existing computer hardware, operating systems and applications to take into consideration the future changes in the system. The design of new computer hardware, operating systems and applications to be integrated with older computer systems. The ability to conduct automated extensive tests to identify potential problems that will impact the availability of the system. The ability to recover from minor or extensive hardware failures without impacting the rest of the running system.

The design of existing computer hardware, operating systems and applications to take into consideration the future changes in the system

You are using ISPF to view a COBOL source code program. How does an application programmer know that they are using the ISPF full screen Editor? Answers: The data set name is displayed at the top of panel. The key word EDIT is display at the upper left-hand corner of ISPF panel. Each line of a COBOL program starts with two forward slashes used to execute edit commands. The users catalog name will change to EDIT

The key word edit is display at the upper left hand corner of ISPF panel

Which of the following statements BEST describes the concept of "Separation of Duties" on a mainframe. Answers: TSO and ISPF utilities are customized and limited by system programmer and application programmer roles. No two COBOL application programmers may collaborate to code the same source program The person who develops an application program, should not be the person who performs final testing or executes the program in production. The person who write JCL code should not be the person who codes a COBOL or JAVA source program.

The person who develops an application program, should not be the person who performs final testing or executes the program in production.

Which of the following statements BEST describes how a user knows that they have exited ISPF and now are able to execute TSO commands? Answers: The TSO command prompt is displayed The READY command prompt is displayed The ISPF panel header displays the TSO banner The 3270 screen displays the Disconnect message.

The ready command prompt is displayed

A red, graphical letter "X" is displayed at the left corner of the TSO or ISPF display and the user cannot type anything. Which of the following statements BEST describes cause of a red, graphical letter "X"? Answers: The system is busy processing a command or application. The user typed a character into a protected area of the screen display. The user typed a character into an unprotected area of the screen display. The userid or password is not valid.

The user typed a character into a protected area of the screen display

All of the following statements are TRUE, except Answers: The starting point of a Windows, UNIX or Linux files system is the root directory The starting point of a z/OS file system is a DASD VTOC The z File system is classified as a hierarchical file system; whereas, NTFS, Ext-4, and the Apple File systems are classified as a flat file system. The z File system can organize data sets by using a partitioned data set. A partitioned data set is similar to a Windows, UNIX or Linux folder or subdirectory.

The z File system is classified as a hierarchical file system; whereas, NTFS, Ext-4, and the Apple File systems are classified as a flat file system

All of the following statements concerning IBM z Systems (2019) are TRUE, except Answers: The flagship operating system for z System is 64-bit z/OS v2.3 supports backward compatibility to previous generations of IBM operating systems (OS360, OS390, MVS/XA, etc.), applications, and middleware. IBM's UNIX System Services (USS) is a component of z/OS, which enables most UNIX and Linux daemons and applications to be executed and co-exist within a z Systems mainframe server. If a requirement is to support large-scale with the BEST cyber security protection, then the most likely backend server technology connected to your cell phone, laptop, personal computer, or other interface will be a z System mainframe server. The "z" in z Systems means zero downtime. The z System main server platforms supports operating system, such as, z/OS, postfix UNIX, open source Linux, and Windows Servers.

The z System main server platforms supports operating system, such as, z/OS, postfix UNIX, open source Linux, and Windows Servers.

The ability to centralize job selection, scheduling, and device allocation over multiple processors to meet performance, response time, and cost minimization policies was an improvement attributed to Answers: WLM LPARs JES3 SMS z/OS

WLM

Which of the following z/OS subsystems introduced in 1998, provides a remote HTML web interface that dynamically executes J2EE (Java) applications to support "small to medium-scale" application transaction workloads application? Answers: CICS SDSF WebSphere IBM MQ RACF

WebSphere

Concerning the rules for naming a data set, which of the following statements if FALSE? Answers: A segment name is limited to 8 characters A data set name is limited to 22 characters A data set name may contain up to 22 segments A segment name must start with an alphabetic character or one of the following special characters, i.e., #, @, or $ A segment name may contain alphabetic, numeric, special characters or a hyphen.

a data set name is limited to 22 characters

The z/OS file system is built on the previous OS360 mainframe file system. Which of the following statements BEST describes a collection of logically related data records or bytes. Answers: catalog data set file subdirectories VTOC

data set

To find a data set that you have requested, z/OS must know all of the following information, except? Answers: data set name volume name unit (the volume device type, such as a 3390 disk or 3590 tape) data set owner name

data set owner name