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About the test:

Mainframe Online-testen bruger scenariebaserede MCQ'er til at evaluere kandidater om deres viden om mainframe-teknologier, herunder COBOL-programmeringssprog, JCL, VSAM, CICS og DB2. Testen sigter mod at evaluere en kandidats evne til at designe og udvikle mainframe -applikationer, der overholder industristandarder og bedste praksis effektivt.

Covered skills:

  • COBOL
  • VSAM
  • CICS
  • Samler
  • PL/i
  • ISPF
  • Jcl
  • DB2
  • Ims
  • RPG
  • Tso

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9 reasons why
9 reasons why

Adaface IBM Mainframe Test is the most accurate way to shortlist Mainframe -udviklers



Reason #1

Tests for on-the-job skills

The IBM Mainframe Online Test helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. It reduces the administrative overhead of interviewing too many candidates and saves time by filtering out unqualified candidates at the first step of the hiring process.

The test screens for the following skills that hiring managers look for in candidates:

  • Dygtige til COBOL -programmeringssprog
  • Stærk forståelse af IBM DB2 -database
  • Erfaring med at skrive og udføre IBM JCL -scripts
  • Kendskab til VSAM -filorganisation
  • Fortrolighed med CICS (kundeinformationskontrolsystem)
  • Forståelse af IMS (informationsstyringssystem)
  • Evne til at kode på samlersprog
  • Kompetence i RPG (rapportprogramgenerator)
  • Arbejdskendskab til PL/I (programmeringssprog en)
  • Færdighed i TSO (Time Sharing Option)
  • Evne til at bruge ISPF (interaktivt systemproduktivitetsfacilitet)
Reason #2

No trick questions

no trick questions

Traditional assessment tools use trick questions and puzzles for the screening, which creates a lot of frustration among candidates about having to go through irrelevant screening assessments.

View sample questions

The main reason we started Adaface is that traditional pre-employment assessment platforms are not a fair way for companies to evaluate candidates. At Adaface, our mission is to help companies find great candidates by assessing on-the-job skills required for a role.

Why we started Adaface
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Reason #3

Non-googleable questions

We have a very high focus on the quality of questions that test for on-the-job skills. Every question is non-googleable and we have a very high bar for the level of subject matter experts we onboard to create these questions. We have crawlers to check if any of the questions are leaked online. If/ when a question gets leaked, we get an alert. We change the question for you & let you know.

How we design questions

Dette er kun en lille prøve fra vores bibliotek med 10.000+ spørgsmål. De faktiske spørgsmål om dette IBM mainframe test vil være ikke-gåbart.

🧐 Question

Medium

Decision Control
Arithmetic Operations
Decision Structures
Data Types
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Consider the following COBOL program:
 image
What will the program display when it is executed?

Medium

Multi Dimensional Arrays
Arrays
Data Processing
Subroutines
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Consider the following pseudocode snippet in COBOL:
 image
After executing this program, what will be the final state of StrArr?

Medium

VSAM File Processing in COBOL
VSAM
File Handling
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Consider the following COBOL code snippet. The program aims to read from a VSAM Key-Sequenced Data Set (KSDS) named 'CUSTOMER-FILE' which contains customer records. The program reads the file in ascending order by 'CUSTOMER-ID', performs some processing (not shown here), and then displays the 'CUSTOMER-NAME' of the last record read.
 image
Assuming there are no syntax errors and the 'CUSTOMER-FILE' is present and accessible, what will the program display as the last customer's name after executing this COBOL program?
A: The program will display the name of the customer with the highest 'CUSTOMER-ID'.
B: The program will display the name of the customer with the lowest 'CUSTOMER-ID'.
C: The program will not display any customer name.
D: The program will display the name of the first customer in the 'CUSTOMER-FILE'.
E: The program will display an uninitialized or random 'LAST-NAME'.

Medium

Database Performance Tuning and Data Consistency
Database Performance Tuning
Transaction Management
Locking Mechanisms
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Consider the following DB2 database scenario. You are managing a stock trading platform that uses a DB2 database to track user transactions and market prices. The database has two tables, Users and Stocks.
 image
A user transaction to buy a stock is a two-step process:

1. Decrease the user's balance in the Users table.
2. Increase the quantity of the stock owned by the user in the Stocks table.

Both these steps need to be performed atomically to maintain data consistency.

Recently, with the increase in the volume of transactions, you are experiencing performance issues. Additionally, you have observed that during peak trading hours, a large number of user transactions are getting blocked, leading to user dissatisfaction.

Which of the following strategies would BEST address the performance and blocking issues, while ensuring data consistency?
A: Implement an optimistic concurrency control mechanism.
B: Reduce the transaction isolation level to READ UNCOMMITTED.
C: Break the transaction into two separate transactions
D: Increase the database's buffer pool size.
E: Implement row-level locking.

Medium

DB2 Isolation Levels and Data Consistency Revisited
Transactions
Isolation Levels
Data Consistency
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Consider two users executing the following transactions concurrently on DB2:

Transaction 1 (User A):
 image
Transaction 2 (User B):
 image
Table1 has thousands of records, and the value 'Value1' for Column1 is not unique in Table1. Both transactions are executed almost simultaneously with Transaction 2 executed a bit earlier. Considering the isolation levels set for the transactions, which of the following is the potential data inconsistency issue that might arise?
A: A deadlock situation may occur.
B: Transaction 1 will wait indefinitely for Transaction 2 to commit.
C: Both transactions might update the same record leading to a lost update.
D: Transaction 1 can experience a dirty read due to the changes made by Transaction 2.

Medium

Optimizing Query Performance
Indexing
Query Optimization
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You are managing a DB2 database which includes a table named `ORDERS`. The `ORDERS` table has a large volume of data and contains the following columns: `OrderID`, `CustomerID`, `OrderDate`, `ProductID`, `Quantity`. 

One of the frequently executed queries on the `ORDERS` table is:
 image
You are asked to optimize this query without changing its structure or the table schema. Which of the following strategies would MOST likely improve the performance of this query?
A: Create a HASH index on `CustomerID` and `OrderDate`.
B: Create a CLUSTERED index on `CustomerID` and `OrderDate`.
C: Create a NONCLUSTERED index on `CustomerID` and `OrderDate`.
D: Create a CLUSTERED index on `OrderID`.
E: Create a NONCLUSTERED index on `OrderID`.

Medium

Transaction Handling and Error Recovery in DB2
SQL Programming
Transactions
Error Handling
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Consider the following pseudocode in an IBM DB2 environment:
 image
This stored procedure is used to update the inventory of a particular item. If the `NewQuantity` input parameter is negative, the procedure signals an exception. There's also a handler declared for exceptions, which logs an error message.

Given this scenario, if an error occurs during the UPDATE statement, which of the following will happen?
A: The update operation will fail, an error message will be logged, and the quantity in the inventory will remain unchanged.
B: The update operation will succeed, no error message will be logged, and the quantity in the inventory will be updated.
C: The update operation will fail, an error message will be logged, but the quantity in the inventory will still be updated.
D: The update operation will fail, no error message will be logged, and the quantity in the inventory will remain unchanged.
E: The update operation will succeed, an error message will be logged, but the quantity in the inventory will still be updated.

Medium

Disposition Parameters
JCL Syntax
Dataset Management
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Consider the following JCL snippet:
 image
In MYJOB, PROG1 in STEP1 uses the dataset MY.DS.INPUT with a disposition of (OLD,DELETE,KEEP). PROG2 in STEP2 also uses the dataset MY.DS.INPUT with a disposition of (NEW,PASS,DELETE).

Assume that STEP1 executed successfully, but STEP2 failed during its execution. What would be the status of the dataset MY.DS.INPUT after the job MYJOB is run?
A: MY.DS.INPUT will be deleted.
B: MY.DS.INPUT will be kept and can be used by other jobs.
C: MY.DS.INPUT will be newly created.
D: MY.DS.INPUT will be available for the duration of the job, then deleted.
E: MY.DS.INPUT status cannot be determined with the provided information.

Medium

Execution Order and Return Codes
Job Control
Execution Order
Return Codes
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Consider a JCL job that needs to execute five steps: STEP01, STEP02, STEP03, STEP04, and STEP05. The steps represent data initialization, data processing, data validation, error handling, and job finalization respectively.

The execution rules are as follows:

1. The job should always start with STEP01.
2. STEP02 should only execute if STEP01 completes successfully with a return code (RC) of 0.
3. STEP03 should always run after STEP02, irrespective of STEP02's return code.
4. STEP04 should only execute if either STEP02 or STEP03 fails, i.e., return a code not equal to 0.
5. STEP05 should always be the last step, and should only execute if all the previous steps were successful (each returning a code of 0).

Given these rules, how would you design the JCL job using the IF/THEN/ELSE/ENDIF construct?
 image
🧐 Question🔧 Skill

Medium

Decision Control
Arithmetic Operations
Decision Structures
Data Types

2 mins

COBOL
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Medium

Multi Dimensional Arrays
Arrays
Data Processing
Subroutines

2 mins

COBOL
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Medium

VSAM File Processing in COBOL
VSAM
File Handling

2 mins

COBOL
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Medium

Database Performance Tuning and Data Consistency
Database Performance Tuning
Transaction Management
Locking Mechanisms

3 mins

IBM DB2
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Medium

DB2 Isolation Levels and Data Consistency Revisited
Transactions
Isolation Levels
Data Consistency

2 mins

IBM DB2
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Medium

Optimizing Query Performance
Indexing
Query Optimization

2 mins

IBM DB2
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Medium

Transaction Handling and Error Recovery in DB2
SQL Programming
Transactions
Error Handling

3 mins

IBM DB2
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Medium

Disposition Parameters
JCL Syntax
Dataset Management

2 mins

IBM JCL
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Medium

Execution Order and Return Codes
Job Control
Execution Order
Return Codes

2 mins

IBM JCL
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🧐 Question🔧 Skill💪 Difficulty⌛ Time
Decision Control
Arithmetic Operations
Decision Structures
Data Types
COBOL
Medium2 mins
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Multi Dimensional Arrays
Arrays
Data Processing
Subroutines
COBOL
Medium2 mins
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VSAM File Processing in COBOL
VSAM
File Handling
COBOL
Medium2 mins
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Database Performance Tuning and Data Consistency
Database Performance Tuning
Transaction Management
Locking Mechanisms
IBM DB2
Medium3 mins
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DB2 Isolation Levels and Data Consistency Revisited
Transactions
Isolation Levels
Data Consistency
IBM DB2
Medium2 mins
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Optimizing Query Performance
Indexing
Query Optimization
IBM DB2
Medium2 mins
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Transaction Handling and Error Recovery in DB2
SQL Programming
Transactions
Error Handling
IBM DB2
Medium3 mins
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Disposition Parameters
JCL Syntax
Dataset Management
IBM JCL
Medium2 mins
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Execution Order and Return Codes
Job Control
Execution Order
Return Codes
IBM JCL
Medium2 mins
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Reason #4

1200+ customers in 75 countries

customers in 75 countries
Brandon

Med Adaface var vi i stand til at optimere vores indledende screeningsproces med op mod 75 %, hvilket frigjorde kostbar tid for både ansættelsesledere og vores talentanskaffelsesteam!


Brandon Lee, Leder af mennesker, Love, Bonito

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Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment IBM mainframe test in your hiring process is that it is an elimination tool, not a selection tool. In other words: you want to use the test to eliminate the candidates who do poorly on the test, not to select the candidates who come out at the top. While they are super valuable, pre-employment tests do not paint the entire picture of a candidate’s abilities, knowledge, and motivations. Multiple easy questions are more predictive of a candidate's ability than fewer hard questions. Harder questions are often "trick" based questions, which do not provide any meaningful signal about the candidate's skillset.

Science behind Adaface tests
Reason #6

1 click candidate invites

Email invites: You can send candidates an email invite to the IBM mainframe test from your dashboard by entering their email address.

Public link: You can create a public link for each test that you can share with candidates.

API or integrations: You can invite candidates directly from your ATS by using our pre-built integrations with popular ATS systems or building a custom integration with your in-house ATS.

invite candidates
Reason #7

Detailed scorecards & benchmarks

Se prøvescorekort
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Reason #8

High completion rate

Adaface tests are conversational, low-stress, and take just 25-40 mins to complete.

This is why Adaface has the highest test-completion rate (86%), which is more than 2x better than traditional assessments.

test completion rate
Reason #9

Advanced Proctoring


Learn more

About the IBM Mainframe Assessment Test

Why you should use Pre-employment IBM Mainframe Online Test?

The IBM mainframe test makes use of scenario-based questions to test for on-the-job skills as opposed to theoretical knowledge, ensuring that candidates who do well on this screening test have the relavant skills. The questions are designed to covered following on-the-job aspects:

  • COBOL -programmeringsviden
  • Evne til at skrive og forstå JCL -udsagn
  • Fortrolighed med VSAM -filhåndtering
  • Forståelse af DB2 -koncepter og SQL -forespørgsler
  • Kendskab til CICS -transaktionsbehandling
  • Forståelse af IMS -hierarkisk database
  • Fortrolighed med samlersprog og kodning
  • Færdighed i RPG -programmeringssprog
  • Evne til at skrive og udføre PL/I -programmer
  • Kendskab til TSO -kommandoer og værktøjer

Once the test is sent to a candidate, the candidate receives a link in email to take the test. For each candidate, you will receive a detailed report with skills breakdown and benchmarks to shortlist the top candidates from your pool.

What topics are covered in the IBM Mainframe Online Test?

  • jcl </h4> <p > JCL eller jobkontrolsprog er et scriptingsprog, der bruges til at definere og kontrollere job i et IBM -mainframe -miljø. Det er vigtigt at måle JCL -færdigheder i denne test, da det er kritisk for styring og udførelse af batchprocesser, definition af datasæt og interaktion med andre mainframe -komponenter. At have ekspertise inden for JCL sikrer glat og effektiv jobudførelse i et mainframe -miljø. </p> <h4> VSAM

    VSAM eller virtuel opbevaringsadgangsmetode er et filstyringssystem, der bruges i IBM mainframes. Det giver effektiv adgang til store mængder data gennem indekserede sekventielle adgangsmetoder. Testning af VSAM -færdigheder i denne vurdering er afgørende, da det ofte bruges til at gemme og hente data i mainframe -applikationer. Færdighed i VSAM er gavnlig for jobroller, der involverer datastyring og -behandling i mainframe -miljøer.

  • db2

    db2 er et relationel databasestyringssystem (RDBMS) designet til IBM mainframes. Det giver en robust og skalerbar platform til at gemme, forespørge og manipulere data. Måling af DB2 -færdigheder i denne test er vigtig, da den er vidt brugt i mainframe -miljøer til styring af databaser og udførelse af komplekse datafunktioner. Færdigheder i DB2 er værdifuld for jobroller, der involverer databaseadministration og udvikling i mainframe -systemer.

  • cics

    cics eller kundeinformationskontrolsystem, er en transaktionsserver, der muliggør online transaktionsbehandling i behandling i Mainframe -miljøer. Det giver en platform til udvikling og udførelse af store, missionskritiske forretningsapplikationer. Evaluering af CICS -færdigheder i denne vurdering er afgørende, da det er vigtigt for jobroller, der involverer online -transaktionsbehandling og skabelse af skalerbare og pålidelige mainframe -applikationer.

  • IMS

    IMS eller informationsstyringssystem er Et hierarkisk databasestyringssystem, der bruges på IBM mainframes. Det giver en robust platform til styring og adgang til store mængder strukturerede og ustrukturerede data. Testning af IMS -færdigheder i denne vurdering er vigtig, da den er vidt brugt i mainframe -miljøer, især i brancher som finansiering, telekommunikation og sundhedsydelser. Færdigheder i IMS er værdifuld for jobroller, der involverer databasestyring og applikationsudvikling i mainframe-systemer.

  • samler </H4> <p> Samler er et programmeringssprog på lavt niveau, der bruges til at udvikle og kontrollere computerhardware og software grænseflader. Det giver programmerere mulighed for direkte at få adgang til og manipulere instruktioner på maskinniveau. At inkludere samlerfærdigheder i denne test er afgørende, da den stadig bruges i visse mainframe-miljøer til præstationskritiske opgaver og hardwareinteraktioner. Færdigheder i samler er gavnlig for jobroller, der involverer optimering, fejlsøgning og programmering på lavt niveau i mainframe-systemer. </p> <h4> RPG

    RPG eller rapportprogramgenerator, er en programmering på højt niveau Sprog brugt til forretningsapplikationer på IBM mainframes. Det er optimeret til behandling af store mængder data og generering af rapporter. Det er vigtigt at måle RPG -færdigheder i denne test, da den stadig bruges i mange ældre mainframe -systemer, især i brancher som bank og forsikring. Færdighed i RPG er værdifuld for jobroller, der involverer udvikling og vedligeholdelse Sprog designet til videnskabelig, teknik, forretning og systemprogrammering. Det kombinerer funktioner i forskellige programmeringssprog og understøtter både proceduremæssige og objektorienterede programmeringsparadigmer. Testning af PL/I -færdigheder i denne vurdering er værdifuld, da den bruges i mainframe -miljøer til udvikling af komplekse og kritiske anvendelser. Færdigheder i PL/I er fordelagtig for jobroller, der involverer systemprogrammering, videnskabelig analyse og storstilet applikationsudvikling.

  • tso

    tso eller tidsdelingsmulighed -LINE -interface leveret af IBM MainFrames. Det giver brugerne mulighed for at interagere med Mainframe -operativsystemet, udføre kommandoer og udføre forskellige systemoperationer. Det er vigtigt at måle TSO -færdigheder i denne test, da det er grundlæggende for at navigere og styre mainframe -miljøer, herunder filsystemadgang, jobkontrol og systemovervågning. Færdigheder i TSO er værdifuld for jobroller, der involverer mainframe -operationer og systemadministration.

  • ISPF

    ISPF eller interaktivt systemproduktivitetsfacilitet, er en softwarepakke leveret af IBM til mainframe -miljøer. Det giver en tilpasselig og interaktiv grænseflade til styring af filer, redigeringsprogrammer og udførelse af forskellige udviklings- og administrative opgaver. Det er vigtigt at inkludere ISPF-færdigheder i denne test, da den er vidt brugt til den daglige drift i mainframe-miljøer. Færdighed i ISPF er gavnlig for jobroller, der involverer programudvikling, systemvedligeholdelse og interaktion med mainframe -ressourcer.

  • Full list of covered topics

    The actual topics of the questions in the final test will depend on your job description and requirements. However, here's a list of topics you can expect the questions for IBM mainframe test to be based on.

    COBOL SYNTAX
    Datatyper i COBOL
    Betingede udsagn i COBOL
    Looping i Cobol
    Underprogrammer og procedurer
    Håndtering af COBOL -fil
    Fejlhåndtering i COBOL
    DB2 SQL -forespørgsler
    DB2 Tabeloprettelse og -styring
    DB2 -indekser
    DB2 lagrede procedurer
    Arbejder med JCL -udsagn
    JCL Utility -programmer
    JCL Jobkontrolopgørelser
    Forståelse af VSAM -datasæt
    VSAM -filhåndtering af operationer
    CICS grundlæggende koncepter
    CICS -transaktioner og programmer
    IMS -databasekoncepter
    IMS -programstrukturer
    Samlerinstruktioner
    Assembler Program Relocation
    RPG -programmeringskoncepter
    RPG -datastrukturer
    PL/I -variable erklæringer
    PL/I -strengmanipulation
    TSO -kommandoer
    ISPF -paneler
    Brug af TSO i batchtilstand
    Håndtering ISPF -datasæt
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What roles can I use the IBM Mainframe Online Test for?

  • Mainframe -udvikler
  • Mainframe -programmør
  • Mainframe Systems Analyst
  • Mainframe Operations Analyst
  • Mainframe -administrator

How is the IBM Mainframe Online Test customized for senior candidates?

For intermediate/ experienced candidates, we customize the assessment questions to include advanced topics and increase the difficulty level of the questions. This might include adding questions on topics like

  • Forståelse af ISPF -panel- og dialogleder
  • Erfaring med mainframe batchbehandling
  • Evne til at skrive og debug COBOL-DB2-programmer
  • Færdighed i COBOL-IMS-programmering
  • Kendskab til JCL -værktøjer og procedurer
  • Fortrolighed med VSAM -adgangsmetoder og kontrolområder
  • Erfaring med CICS -systemprogrammering
  • Forståelse af IMS -databaseadministration
  • Færdighed i samlermakroer og datarepræsentation
  • Evne til at skrive og fejlsøge RPG-ALE-programmer
  • Kendskab til PL/I -datastrukturer og erklæringer
Singapore government logo

Ansættelseslederne mente, at de gennem de tekniske spørgsmål, som de stillede under panelinterviewene, var i stand til at fortælle, hvilke kandidater der havde bedre score, og differentieret med dem, der ikke scorede så godt. De er meget tilfreds med kvaliteten af ​​de kandidater, der er nomineret med Adaface-screeningen.


85%
Reduktion i screeningstid

IBM Mainframe Hiring Test Ofte stillede spørgsmål

Kan jeg kombinere flere færdigheder i en brugerdefineret vurdering?

Ja absolut. Brugerdefinerede vurderinger er oprettet baseret på din jobbeskrivelse og vil omfatte spørgsmål om alle must-have-færdigheder, du angiver.

Har du nogen anti-cheating eller proctoring-funktioner på plads?

Vi har følgende anti-cheating-funktioner på plads:

  • Ikke-gåbare spørgsmål
  • IP Proctoring
  • Webproctoring
  • Webcam Proctoring
  • Detektion af plagiering
  • Sikker browser

Læs mere om Proctoring Features.

Hvordan fortolker jeg testresultater?

Den primære ting at huske på er, at en vurdering er et elimineringsværktøj, ikke et udvælgelsesværktøj. En færdighedsvurdering er optimeret for at hjælpe dig med at eliminere kandidater, der ikke er teknisk kvalificerede til rollen, den er ikke optimeret til at hjælpe dig med at finde den bedste kandidat til rollen. Så den ideelle måde at bruge en vurdering på er at beslutte en tærskelværdi (typisk 55%, vi hjælper dig med benchmark) og inviterer alle kandidater, der scorer over tærsklen for de næste interviewrunder.

Hvilken oplevelsesniveau kan jeg bruge denne test til?

Hver Adaface -vurdering tilpasses til din jobbeskrivelse/ ideel kandidatperson (vores emneeksperter vælger de rigtige spørgsmål til din vurdering fra vores bibliotek på 10000+ spørgsmål). Denne vurdering kan tilpasses til ethvert erfaringsniveau.

Får hver kandidat de samme spørgsmål?

Ja, det gør det meget lettere for dig at sammenligne kandidater. Valgmuligheder for MCQ -spørgsmål og rækkefølgen af ​​spørgsmål randomiseres. Vi har anti-cheating/proctoring funktioner på plads. I vores virksomhedsplan har vi også muligheden for at oprette flere versioner af den samme vurdering med spørgsmål om lignende vanskelighedsniveauer.

Jeg er kandidat. Kan jeg prøve en øvelsestest?

Nej. Desværre understøtter vi ikke praksisforsøg i øjeblikket. Du kan dog bruge vores eksempler på spørgsmål til praksis.

Hvad er omkostningerne ved at bruge denne test?

Du kan tjekke vores prisplaner.

Kan jeg få en gratis prøve?

Ja, du kan tilmelde dig gratis og forhåndsvise denne test.

Jeg flyttede lige til en betalt plan. Hvordan kan jeg anmode om en brugerdefineret vurdering?

Her er en hurtig guide til hvordan man anmoder om en brugerdefineret vurdering på adaface.

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