WEEK1:Know your techie score On Mainframes.

Mainframes Question And Answers:



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Section 1
Q : 1. Businesses today rely on the mainframe to ?? Points : 20/20
Answer : all
Candidate Answers : •Perform large-scale transaction processing (thousands of transactions per second)
•Support thousands of users and application programs concurrently accessing numerous resources
•Manage terabytes of information in databases and Handle large-bandwidth communication
all
Other Answer:
Answer key / Comments : points to remember: 1.Corporations use mainframes for applications that depend on scalability and reliability. For example, a banking institution could use a mainframe to host the database of its customer accounts, for which transactions can be submitted from any of thousands of ATM locations worldwide. 2.Businesses today rely on the mainframe to: •Perform large-scale transaction processing (thousands of transactions per second) •Support thousands of users and application programs concurrently accessing numerous resources •Manage terabytes of information in databases •Handle large-bandwidth communication
Q : 2. Mainframe strengths are ??? Points : 20/20
Answer : all
Candidate Answers : Reliability
availability
serviceability
all
Other Answer:
Answer key / Comments : 1.The reliability, availability, and serviceability (or "RAS") of a computer system have always been important factors in data processing. When we say that a particular computer system "exhibits RAS characteristics," we mean that its design places a high priority on the system remaining in service at all times. Ideally, RAS is a central design feature of all aspects of a computer system, including the applications. RAS has become accepted as a collective term for many characteristics of hardware and software that are prized by mainframe users. The terms are defined as follows: Reliability: The system's hardware components have extensive self-checking and self-recovery capabilities. The system's software reliability is a result of extensive testing and the ability to make quick updates for detected problems. Availability: The system can recover from a failed component without impacting the rest of the running system. This term applies to hardware recovery (the automatic replacing of failed elements with spares) and software recovery (the layers of error recovery that are provided by the operating system). Serviceability: The system can determine why a failure occurred. This capability allows for the replacement of hardware and software elements while impacting as little of the operational system as possible. This term also implies well-defined units of replacement, either hardware or software.
Q : 3. JCL PROCEDURE LIMIT ?? Points : 20/20
Answer : 255 STATEMENTS
Candidate Answers : 255 STATEMENTS
2345 STATEMENTS
245 STATEMENTS
25 STATEMENTS
Other Answer:
Answer key / Comments : points to remember: 1.Yes, the total limit is 255. Keep in mind this includes all steps in procedures & INCLUDEd JCL segments. 2.maximum 255 steps we can code incuding steps in instream and catalog procedures
Q : 4.
The maximum length of a qualified data set name is ??
Points : 20/20
Answer : 44 characters, including periods
Candidate Answers : 54 characters, including periods
4 characters, including periods
45 characters, including periods
44 characters, including periods
Other Answer:
Answer key / Comments : points to remember: 1.Qualified names: Multiple unqualified names joined by periods. Each qualifier is coded like an unqualified name; therefore, the name must contain a period after every 8 characters or fewer. 2. The maximum length of a qualified data set name is: •44 characters, including periods. 3.For a generation data group, 35 characters, including periods. 4.For an output tape data set, 17 characters, including periods. Example of a qualified name: DSNAME=ALPHA.PGM
Q : 5.
Access methods are ???
Points : 20/20
Answer : All
Candidate Answers : Queued Sequential (QSAM)

Virtual Sequential (VSAM)
and Basic Partitioned (BPAM)
Basic Direct (BDAM) and Basic Sequential (BSAM)

All
Answer key / Comments : points to remember: Access methods are listed below. Queued Sequential (QSAM) Basic Partitioned (BPAM) Virtual Sequential (VSAM) Basic Sequential (BSAM) Basic Direct (BDAM)