MF301 Questions

8/8/2019 MF301 Questions

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PR301 MF Sample questions 1st SET

CICS:

1) Business transaction Service (BTS) is

a) Self contained business dealb) Has multiple actionsc) is always short lived

Ans : a & b

2) one question like state true or false for pseudo conversation & BTS ..refr pageno: 14 in CICS material

3) Control flow of states of BTS activity. Mark false one

a) Initial -> Active -> Complete

b) Initial -> completec) Initial Dormant Active complete

d) Initial Dormant completeAns : b

4) CHECK ACTIVITY doesAns; Checks completion status

5) LINK ACQPROCESS doesAns: Execute a CICS BTS process

Synchronously

6) Bridge exit program resides onAns: Server side (I marked, not sure..just check) options were client side, serverside, both

7) COMMAREA can be used with BTS

a) separately, if appl does not need 32kb. Orb) COMMAREA can also be used with BTS application, if it does not have

32K size restriction.Ans: b

8) Current ChannelAns: ASSIGN command

9) Replace a COMMAREA using a channelwith a ------- container. While this may seem the simplest

way to move from COMMAREAs to channels andcontainers, it is not a good practice to do this

Ans: One


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Advanced JCl:

1) Retrieve a tape dataset i.e not catalogued.

//OLD DD DSN=ENR.88888.******,DISP=OLD,UNIT=TAPE,VOL=some num

2) /*JOBPARM is placedAns: After JOB statement

3) Syntax for OUTPUT statement with default optionAns: //OUT1 OUTPUT DEFAULT=YES

4) In IEBPTPCH, print statement, printsAns: Input files in group of 8chars

5) Utility that creates sequential files that contains data extracted frm other

files:Ans: IEBDG

6) Invalid FORMAT parameter in FD statement of IEBDG. ANs: NU7) NUMBER statement tells IEBUPDATE to insert sequence numbers in columnsAns: 73 to 80

8) One question on proper syntax of MERGE utility

DB2/ Database Tuning:

1) Throughput is

Ans : Amount of work done / Amount of time

2) One of the criteria for good table design.Ans: Define the same length and data type for join columns

3) Couple of Questions on variable length columns. Just remember below givenpoints.

Keep together columns that are modified in the same process. Order VARCHAR columns by use frequency (most used first). Place variable length columns toward the end of the row to minimize theretrieval cost. Place frequently updated columns, both fixed and variable, toward the end

of the row to minimize the size of the log record.

4) True or falsea) When updating aVARCHAR column, DB2 logs from the first data byte modified until the end ofthe row.Ans : Trueb) When updating a


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VARCHAR column, DB2 logs from the first data byte modified until the end ofthe row.Ans: If used without the modified word , then false

5) Normalization:Ans: For frequent updates

6) De-normalization:Ans: For mostly queried database

7) Go thru page num 42 in DB2 tuning(some true n false ques were given on this)

8) Derived columns are not used for:

a) Calculations are complex.b) You cannot calculate the derived values by SQL.c) to store summarized datad) for functions like AVG, SUM etcAns: d

9) One question on PCTFREE=0, refer page num 62 in DB2 tuning

10) One question: true or false on External & SQL stored procedure types likeProgram logic part of definition etc types.

11) DB2 searches the --------------------- catalog tableusing the procedure name and, after verifying authorizations and parametersdefinitions, retrieves the collection IDAns; SYSIBM.SYSROUTINES

11) PARAMETER STYLE DB2SQL contains

ANs: SQLSTATE, Qualified and specific name of the Stored procedure and SQLdiagnostic string

12) One question on handling Result sets in SP

13) Denormalization is

Ans: Denormalization is process of taking small tables and combining themtogether into fewer, larger tables in order to reduce I/O and joining effort.

14) Index criteria

The keys which are frequently used in the WHERE* clause The keys which are being used for joining relations- The keys which have mostly unique values

15) Different types of queries:a) point, partial, range queries

16) Impact of using index in OLTP appl


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Ans: Degrades permonance, due to lots of inserts, updates etc

17) Log filea) Writes sequentiallyb) Writes randomlyc) Has redo & undo info

Ans: a & c

18) Question on Lock ContentionAns: Make your transactions short

MQ Series:

1 Message Descriptor has -------------- , that should be always sent when a messageis sentAns: Priority

3) Message has application data first and then a trailerAns: false

4) Question on Persistent/non-persistent messages

5) Choose MQ objects in a list given

6) If message is not delivered, then it goes toAns: Dead letter queue

7) Triggering process componentsa) Application queueb) Initiation queuec) Transmision queued) Reply-to-queueAns: d

8) MQI channel is Ans: Bidirectional

9) Work load balancing can be implemented bya) Triggeringb) ClusteringAns: b

10) Components of MQ series:a) Callsb) Structuresc) Elementary data typesd) All of the aboveAns:d


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11) Choose a minor call out of the calls given (3 major calls n one minor call waslisted)

12) One common parameter that all the MQ calls returnAns: Completion code

13) When we define transmission queue, we need to specify -------------- in USAGE

parameterAns: XMITQ


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PR301 MF Sample questions 2nd SET

1. VTOC used for : disk & HDRn for: tape2. Values required for retrieval of data: Name/unit/volume/space/DCB3. q on usage of (NEW,CATLG)4. q on jes2 & jes3 definition: which is true kind

5. which is the correct option:a. jes2 override jes2b. can be codedd in catalog procc. can be coded in in-stream

ans: a6. which is the statement used To code operators command in a job : COMMANDstatement7. which is false about gdg:

a. all gdg has same nameb. gdg can reside on tapec. gdg need not be catloged

ans: c

8. q on sort & merge( dont remember completely)ans is: position,lenght,format,sequence

9. what are the incorrect values of FD in IEBDG:a. nub. zdc. pdd. co

ans: a10. which position NUMBER updates in IEBUPDATE utility: columns 73 to 8011. IDCAMS is used for:

a. define clusterdont remember b,c,d options

ans: a12. questions on STEPLIB & JOBLIB: one of the question ans is: setplib will overridejoblib( crap questions for PA )13. question on usage of jobcat DD statement.. option were very confusing... donteven remember what it was & what i gave14. hell lot of WHICH IS TRUE question's on CICS BTS definitions:few of the ans i gave was: bts is short lived /donot involve multiple activities (btb igot 100% in CICS )15. BTS is sysplex ebabled: true16. some crap WHICH IS TRUE question on root activity: ans was every process has onlyone root activity.17. question on channel & container definition

18. question on STATES OF BTS ACTIVITY diagram on page 19 in cics19. question on definition of: CHECK ACQPROCESS,INQUIRE PROCESS,LINK ACQPROCESS20. which command is used to move subset of data in channel(dont remember qclearly, but remember word subset): move container21: force timer: Force an early expire of timer22: question on how to over come the size restrictions of commarea:


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-Using the FLENGTH option of the GETMAIN command to acquire a storage area andpassing the address of the large storage area in the COMMAREA. Using VSAM datasets or DB2 tables. Using TSQs or TDQs. Using Channels & Containers

23. read all the Best Practices in Design of Channels:: like

Use separate containers for input and output datause multiple containers for large dataDo not create too many large containers

etc..etc

24. some definition questions on API

25. At what stage of project db2 tuning has to be done: all stages26. true/false question on LARGE tables:

one of ans was: you have to horizontally split tables until they reach 1 TB: this is FalseYou must create them using LARGE keyword or the NUMPARTS : TRUEAccessing only one table reduces the complexity of programming/Query: trueParallelism of processes, utilities and queries is possible if you partition adequately:true

27. date is example of compound column

28. true/false question on Variable Length Columns definition always choose below fortrue:

Place variable length columns toward the end of the row Place frequently updated columns, both fixed and variable,toward the end of therow

30. true/false question on long columns

31. you should not use PCTFREE = 0: choose when REORG frequency option32. create or alter commands for EXTERNAL Procedure & SQL Procedure, they will givea list of proceduers & ask which is for which type33. true/false question on definition of result sets:

one of the ans was: Issue one ALLOCATE CURSOR statement for each result set

returned by the stored procedure.

34. question some thing like: if you are using MQ series, whats type ofcommunicatrion: messaging35. definition question on persistence message: recoverable36. not type of queue: local/alias/trigger queue/dynamic queueans: dynamic queue37. which is the template used for creating dynamic queue: model queue


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38. if destination Q is not available, to which q a message wil be sent: dead letterqueue39. what queue is used for defining application to be started by trigger monitor:process definition40. when Q depth becomes 0 to 1, to which trigger is sent: FIRST41. MQI is bidirectionl: true

42. which q is used for work load balance: cluster q43. question on major/minor calls : which is not the option of both : ans was DATA44: choose the correct major/minor call from the given list: do remember all the types45. which are the diff types of objects, they give few or all of the below options:

QueueQueue ManagerNamelistProcess DefinitionChannels

46. choose correct options on definitions of completion code & reason code, choose

below:

Completion code gives the status of call whether it was successful or not & reasoncode gives the details of the message

note : there was another option exactly same as above, but with return code..insteadof reason code

47: some question on MQCC codes48: Throughput is = Amount of Work / Amount of Time49: Row Chaining definition question50: some confusing question on INDEX: one fo the ans was : increase the cost of insert

& update51: they give example & ask what type of query it was: for me point52: Bitmap index increases the efficency: true53: hash index: less I/O54: read the guidlines for creating indexes55: question on momery contension: limited & expensive/ used by all transactions56: whats lock escalation57: why locaks are required


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PR301 MF Sample questions 3rd SET

Split Up

CICS - 10

Database - 8Db2 - 10

JCL - 8

MQ series - 14Db2 Questions

1. DATE is an example of which type of columns - Compound, derived, long?

2. Denormalization should be used for what kind of data base - OLTP or DSS?

3. Normalization should be used for frequently queried/updated?4. Why is vertical split done? To reduce 32KB pages

5. Disadvantages of Vertical split -

6. Combining tables - choose the correct disadvantage7. Hot spots - which one of the following - Portion of the table which is

continuously and repeatedly updated

8. Parameters of External stored procedure - which is not - options were Dynamicresult sets, Parameters style, DBNAme - The incorrect parameter is DBNAME.

(The correct name is DBINFO)

9. What does PSQLDA contain? - contains number of result sets returned by the

stored procedure10. Control from DB2 to stored procedure - which one does it? I marked it as WLM -

not sure which one?

JCL questions

1. How to make Non-vsam catalog structure point to a VSAM node? UsingSTEPCAT and Integrated Catalog facility

2. /*ROUTE XEQ ... after this /*MESSAGE is coded - whats the output - I said JCL

error since ROUTE and XEQ are 2 separate JES2 statements3. What does //*COMMAND operator do? Code operator's command in a job

4. Which parameter is used to delete datasets even when the retention period is

unexpired - PURGE/EMPTY/SCRATCH?

5. IEBPTCH - PRINT or PUNCH - if the parameter MAXDD is not coded, howmany groups of character are printed - 8/32/16/?

6. Utility used to create GDG - IDCAMS

Database questions

1. Formula for Throughput = Amount of transactions per unit time

2. Steps for tuning strategy - Gather info, Current considerations, Future

considerations,physical investigation,implementation - i marked incorrect optionas informing stake holders.... not sure

3. unit of transfer between memory and disk - block


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4. When should index be used - colum which is used for join, used commonly in

WHERE clause, not in a column with few distinct values and mostly NULL

values5. Which type of index should be used for data warehousing/not updated frequently -

Bitmap

6. Which index should be used on columns which have few distinct values - Bitmap7. How to acheive lock contention? MAke transactions short, use lock escalation,

avoid deadlock,s hold locks for short time...

Websphere MQ questions

1. What is transmission queue?

2. 2 parts to message put in a queue - correct answer is message descriptor followedby application data

3. Persistent messages are stored in Non volatile storage (true/false)

4. When you need a system where some messages have to be accessed slowly and

some faster - how do we implement? Using priority is the answer5. Temporary dynamic queues - which is an incorrect feature - Answer is it is

recoverable (Temporary dynamic queues are non-recoverable)6. When the destination of the message is unknown, it is put in dead-letter

queue/transmission queue..

7. When trigger happens, what starts - queue manager is active, message is sent,application starts? - Application program starts

8. Which is not an object - Process, queue, tablelist, namelist ,rules

9. Messages are triggered when? (all 3 types - EVERY, FIRST, DEPTH)

10. Which of the following is not a major call - MQPUT1,MQCLOSE, MQBEGIN -MQBEGIn is the answer

11. Function of MQBEGIN

CICS questions

1. BTS supports SYSPLEX or not

2. Which is the correct flow? Active--> Complete or ACtive--> Dormat -->

complete, Active -->Dormat--> Active--> Complete???3. which of the following is false about 3270 application from BTS? not terminal

related, supports COMMAREA etc.

4. Can BTS support 2 COMMAREA within the same transaction?

5. How can a channel be passed to a different program? Using LINK, XCTL andSTART

6. How to pass subset of channel to subcomponents or move containers within

channels - Use MOVE CONTAINER command7. Can COMMAREA pass more than 32KB data across a MRO Link?


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PR301 MF Sample questions 4th SET

Got 40/50 80%

DB tuning 100%, JCL 100%, CICS BTS 90%, Web MQ 71%, DB2 Tuning

50%So please recheck answers for CICS, MQ and DB2!!

1. Which of the following are features of MQ Series Asynchronous processing,

MQI, Time dependent, Synchronous processing

2. Process Defn is a MQ obj that contains list of other MQ objecs ..

3. Hit ratio formulae4. DB2 indexes not useful while dealing with retrieval of sorted data, sequential

access of large quantity of data, access few rows, short term data

5. Database design strategy6. Which if the foll is not an adv of QM clustering increased availability of Queue

and application, increased avlblity of message queues on a failing QM, faster

throughput, even distribution of workload

7. stepcat overrides jobcat8. Defn of row chaining

9. True/False channel is deleted by CICS after it goes out of scope

10. Which is the Common param returned by all MQ calls Connection handle, Objhandle, Obj desc, Completion code

11. Use clustering for work load balancing

12. API which takes a process from Complete state to Initial state Retrieve, Reset,Define, Link

13. Reply to Queue

14. T/F bridge exit pgm is a part of child activity

15. True about Jes 2 /*notify statemtn? Jes2 /*notify overrides notify on job

statement, notify on job statement overrides jes2 /*notify, /*notify can be coded

in an instream proc, /*notify is placed afterjob stmnt

16. BTS Channel can contain how mnay no of containers 255, 256, 1024, Any17. After giving MQGET ..you do not get any response from the queue which has 20

messages..why? depth of the queue is >20, Q is inhibited for MQGET, Msgs

havnt been committed by the sendng appln, None of the above18. IEBDG ..format parameter which of the foll is not valid ans is NU19. SP WLM checks for WLMSPAS what happens? ..options were ..If

WLMSPAS is absent , if WLMSPAS is present 2 options , All of the above

20. Which of the foll is false re handling of RS dont remember the options ..but theans that I checked was SP must fetch rows from cursor and close cursor

21. Mechanism used to identify performance bottleneck in SQL stmnts22. Advantages of SP Access to features existing on server, Enforcement of

Business rule, Appln integration solutions, ALL of the abve

23. Which of the foll is not true abt prep and binding SP linkedit using DSNALI,

precompile with NODYNAME, linkedit using DSNRLI for RRSAF, specifyAMODE(31) when linking

24. T/F Persistent msgs survives failure & restarts on Qm

25. Valid Web MQ Obj types local Q, Dynamic Q, Remote Q, Alias Q


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26. Msg type held by temp dynamic Q non-persistent27. dead-letter-Q

28. What brings an activity to initial state LINK, DEFINE, RESET & RUN29. Which of the foll is correct to access an existing uncatalogued dataset ans is the

longest option!!

30. Identify the correct ones for BTS root activity can create only 1 child actvivity,root activity controls synchronization and parameter passing, any number of

root activities can be present in an appln

31. Not a non-vsam DS orga ESDS32. What is true abt Jobcat DD stmt used in SMS managed DS, unit & vol info

specified, used to define a private VSAm or integrated catalog , placedafter job & before exec

33. JES 3 statement COMMAND defn34. which of the foll is false abt denormalization Highly normalized best for

frequently updated, maintenance of de-norm tables is easier, denorm used for

freq queried tables, denorm improves perf by reducing number of DB access

35. commarea can be used in BTS : separately- even if appl requires > 32KB,separately- even if appl requires < 32K (note it is 32K and not 32KB),

separately-by defining a container for commarea without size restriction

36. Which of the foll is available as data defn files or copybooks for MQ

Elementary data types, MQI calls, Structures, ALL37. MQBEGIN defn

38. Model Q used while creating Queues dynamically39. Modify SQLdata is used to specify all the 4 options were very long options

didnt know the answer for this

40. which is correct abt BTS provides web support41. T/F BTS does not support sysplex

42. Which of the foll is not true abt denormalization (combining tables)

maintenance of data is complex, queries use distinct ., online performace lost,SQL functions (AVG, SUM) disabled

43. Impact on OLTP when there are too many indexes crated on a table with lots of

insert & delets44. Strategy to reduce lock contention

45. Relation b/w record and DB block the ans I checked was something like 1 DBblock contains one or more records

46. IEBUpdate Number parameter ans is position 73 to 8047. Advantages of combining tables

48. Container defn

49. Which of the following are Valid MQ Objects

H a ha finished the exam in 25 minutes and spent the next 35 minutes to jot down

these Qns!!

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MF301 Questions