ISU IT 330 Unit 1 Quizzes

Concerning catalogs, which of the following statements is FALSE?

A master catalog normally contains entries that point to the VTOC table

All of the following statement concerning the physical structure of a DASD are TRUE, except?

A track contains blocks

What is a "page fault"?

A virtual address is not in real memory and z/OS must bring in the page from auxiliary storage.

Concerning the rules for naming a data set, which of the following statements if FALSE?

A data set name is limited to 22 characters

Concerning the rules for naming a data set, which of the following statements is FALSE?

A data set name many not contain more than four segments.

Concerning LPARs, channels, ESCON/FICON, switches and control units, which of the following statements is false?

ESCON switches are used to attach a mainframe to a LAN.

Events such as a time interval expiring, the operator pressing the interrupt key, or receiving a signal from another processors are examples of which type of interrupt?

External interrupts

Which of the following Parallel Sysplex concepts is MOST associated with Disaster Recovery?

Geographically Dispersed Parallel Sysplex (GDPS)

All of following are TRUE concerning access methods, except?

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

Which of the following statements is TRUE concerning an "alias" used in master and user catalogs?

An alias defines a named pointer (short-cut) to another user catalog data set.

Which of the following would be the BEST example of an appropriate used of variable length record format?

An application which processes a student transcript record which stores information for the classes taken by a student

The concepts of channel, control unit and device number are related to which of the following hardware technologies?

I/O connectivity

Channel subsystems signaling the completion of a process or a return of a printer to ready status are examples of which type of interrupt?

I/O interrupts

Which of the following is NOT a common characteristic of a Batch Processing workload?

Immediate output response is common.

The IBM zIIP processor instruction set was designed and optimized for which of the following types of processes?

DB2 database applications

The process of translating a virtual address during storage reference into a real address is called?

Dynamic address translation (DAT)

Which of the following is NOT a common characteristic of an OLTP workload?

Large volumes of input data to be processed

Which of the following is not one of the processor types used by zEnterprise mainframes?

MA4 ( Math Assist Quad Core Processor)

Concerning LPARs, channels and control units, which of the following statements is false?

Many channels may be assigned to one LPAR.

All of the following statements concerning Partitioned Data Sets (PDS) are TRUE, except?

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

All of the following are advantages of a PDS, except?

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

The combination of a channel number, switch port number, control unit address and unit number is called a(n)?

Physical address number

The mainframe role which most likely ensures that batch workloads run to completion without error and delay is _______?

Production control analyst

A program performing an illegal operation, e.g., divide-by-zero, or referencing a page that is not in central storage (a page-fault) are examples of which type of interrupt?

Program interrupts

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

RRR

Which of the following types of z/OS control blocks normally stores information in system memory concerning availability and status information for anything a program needs as it executes, e.g., processor time, a data set, another program, a table, or a hardware device?

Resource-related control blocks

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?

Separation of Duties

All of the following statements concerning Partitioned Data Set Extended (PDSE) are TRUE, except?

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

All of the following are types (classes) of z/OS interrupts, except

Status interrupts

Concerning the features of z/Architecture storage protection, which of the following are FALSE?

Storage protection keys are used to encrypt logon user's authentication token.

All of the following are cited as advantages of a Parallel Sysplex Cluster, except?

Support for different operating systems on a single mainframe

The mainframe role which most likely maintains security resource control lists, users and user profiles, network connectivity and monitors system performance is _______?

System administrator

The mainframe role which most likely installs, customizes and maintains the operating system is _____?

System programmer

When one submits a batch job to JES (Job Entry System), JES will schedule the necessary processing and data resources requirements, control the execution of the job, and terminate the job when completed. Which of the following types of z/OS control blocks are normally stored in system memory and then are used to control the flow and execution of jobs?

Task-related control blocks

Concerning the concepts of addressability, line and bar which of the following statements is false?

The "Bar" is an area of storage that may extend up to 16 extabytes (EB).

Which of the following statements BEST describes the concept of Basic Shared DASD?

Two different channels assigned to two different LPARS are connected to the same control unit

Which of the following statements BEST describes the concept of Serviceability?

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?

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?

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?

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

The list of data sets that is stored in a given volume, along with information concerning the location (pointers) and size of each data set is stored in the __________________ ?

VTOC (Volume Table of Contents)

QSAM, BSAM, BDAM, BPAM, and VSAM are names of ____________?

access methods

The range of physical and virtual addresses reserved by a processor for the execution of a process of task is called?

address space

Before one can use a data set, one must ________?

allocate the data set

Data sets always start ______________?

at the beginning of a track or cylinder

The physical unit of data retrieved by a disk and returned to z/OS for processing by an application is called a(n) ___________?

block

The hardware component that independently controls communication with the I/O control unit without the assistance of the CP in a multiprogramming is called a(n) ____?

channel

Sysplex and Parallel Sysplex technologies are examples of?

cluster technologies

Vital information about the z/OS component and an executing application's status that can help diagnose the cause of a failing component is stored in a ____________.

control block

IBM 3990 devices are popular types of which zEnterprise hardware component?

direct access storage devices (disk drives)

DASD is another name for a __________?

disk drive

All if the following are types of z/OS storage, except?

dynamic storage

While using variable length records may provide the advantage of using less storage, it does have which of the following disadvantages?

extra processing time required to process the RDW and BDW

A data set member is comparable to which of the following UNIX file system concepts?

file

An active virtual storage page residing currently in central storage (real memory) is called a _______?

frame

The concept that enables a CP is temporarily suspend one program waiting for an I/O to complete and start (switch) another program to improve CP utilization, normally used in batch processing, is called a(n) _______?

interrupt capability

An event that alters the sequence in which the processor executes instructions is called?

interrupt processing

Predefined code used as callable within z/OS or application programs is called ________?

macro

A group of z/OS related instructions are called a ________?

module

The simultaneous operation of two or more processors that share various hardware resources, e.g., system and disk storage, is called ______?

multiprocessing

Which of the following concepts BEST describes the process of using an inactive frame of other work processes and assigning this storage space to the current active user or application is called?

page stealing

Which of the following concepts BEST describes the process of moving pages between auxiliary storage and real storage?

paging

The primary advantage of using virtual addressing is?

permits an address range that is greater than central memory storage (physical memory)

In z/Archtecture, address space isolation (protection) is based on __________?

private and common address spaces

The z/OS address space where a user's program executes is called ____?

private area

Virtual storage is dynamic representation of ________.

real and auxiliary storage

The basic unit of stored information that contains a fixed number of bytes is called a _______?

record

A ______ is anything a program needs to execute.

resource

Which of the following concepts BEST describes an inactive virtual storage page residing currently in auxiliary storage?

slot

Which of the following concepts BEST describes the process of transferring an entire address space between central storage and auxiliary storage?

swapping

Workload Management (WLM), Recovery Termination Manager ( RTM), Unified Resource Manager (URM), and RACF are examples of

system components

In Unix the record format, block size and file organization is determined and accessed by

the application

The master catalog is comparable to which of the following UNIX file system concepts?

the root (/) directory

In z/OS, the user prefix (e.g., RMU0001) assigned to a z/OS data set points to

the user catalog

In z/OS the record format, block size and file organization is determined and accessed by

the z/OS operating system

Key Sequence Data Set (KSDS), Entry Sequence Data Set (ESDS), Relative Record Data Set (RRDS), and Linear Data Sets (LDS) are examples of?

types of VSAM data sets

F (Fixed), FB (Fixed Blocked), V (Variable), VB (Variable Blocked), and U (Undefined) are examples of?

types of data set record formats

Sequential, Partitioned and VSAM are examples of?

types of data sets

The 64-bit z/OS operating system can manage up to 16-extabytes of storage. This means that up to 16- extabytes of executing programs and data can be under the z/OS 's control. To be more specific z/OS supports up to 16-extabytes of ________ storage.

virtual

When a program is selected for execution, it is first stored in __________.

virtual storage

IBM LPARs (logical partitions) is the MOST conceptually similar to which of the following concepts?

virtualization technologies

A DASD may be subdivided into

volumes

The maximum number of severs that Parallel Sysplex can link together as one Sysplex is

32

The primary security function of a storage protection key is to _______.

determine if an executing application is authorized to access a 4K virtual storage unit

Which of the following is (are) included in a 64-bit z/OS virtual address?

All of the above (region index (RX) - which region? - bits 0 -32, segment index (SX) - which segment within a region? - bits 33 - 43, page index (PX) - which page within a segment and within a region - bits 44 - 51, byte index (BX) - which byte with a page - bits 52 - 63)

Given the following statements concerning VSAM Control Intervals and Control Areas, which of the following statements is TRUE?

All of the above are true (A Control Interval is analogous to a block in QSAM (sequential) data sets, A Control Area is used during VSAM data set allocation and may contain one or more Control Intervals, The size of a control interval may vary, with a maximum size of 32K, A larger control interval increases performance for sequential processing)

Given the following statements concerning VSAM data sets, which of the following statements is TRUE?

All of the above or true (VSAM data is always variable-length and records are automatically blocked into a control interval, A VSAM data set contains control areas and indexes, A control interval is frequently allocated with FREESPACE, which permits records to be inserted into a control interval in the future, IDCAMS or AMS are utilizes used to allocate VSAM data sets)

The design goal that ensures that no application changes are required to run in a Parallel Sysplex and compared to a single LPAR is called a(n)?

Application compatibility

A style of computing in which resources are made available over the internet, e.g., applications, servers, infrastructure, etc. to users is called a ________?

Cloud

All of the following are z/Architecture security features designed to preserve the integrity of address space during execution, except?

Encryption of the address space

The IBM zAAP processor instruction set was designed and optimized for which of the following types of processes?

Java web applications

When one submits a batch job to JES (Job Entry System), JES will schedule the necessary processing and data resources requirements, control the execution of the job, and terminate the job when completed. Which of the following types of z/OS control blocks are normally spooled to DASD and then are used to schedule resources for a job?

Job-related control blocks

The most popularly used VSAM data set is?

Key Sequence Data Set (KSDS)

A logical segmentation of a mainframe's memory and other resources that allows it to run its own copy of the operating system and associated applications is called a _____?

LPAR

All of the following are true concerning channels, except excessively waiting for data I/O

Most large scale mainframes have 16 or less channels

Which of the following concepts BEST describes a cluster of IBM mainframes acting together as a single system image?

Parallel Sysplex

Concerning the concepts of a block and logical records, which of the following statements is TRUE?

One block contains one or logical records

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

PPP

All Of the following are examples of types of z/OS control blocks, except?

Page-related control blocks

Common Criteria Evaluation Assurance Level 5 (EAL5) is a unique advantage of IBM mainframes. EAL5 BEST relates to which of the following categories used to compare computer systems?

Security

Which of the following statements BEST describes the concept of Extensibility?

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

Which of the following statements BEST describes the concept of Compatibility?

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

All of the following describes the process of responding to an interrupt, except?

The hardware erases the Program Status Word (PSW) to prevent contamination cause by the interrupt.

The name of a volume is stored in the __________________

Volume Label

In order to implement a Sysplex or Parallel Sysplex, which of the following must be used?

a Coupling Facility must be used

A IBM file is stored as a _________?

dataset

In a zEnterprise file system, a collection of logically related data records, such as a library of macros or a source programs, is called a ________?

data set

To find a data set that you have requested, z/OS must know all of the following information, except?

data set owner name