Sample Question Paper (Multiple Choice)

Question 1

Answer 1

Answer: D

Question 2

Answer 2

Answer: C

Question 3

Answer 3

Answer: B

Question 4

Answer 4

Answer: B

Question 5

Answer 5

Answer: C

Question 6

Answer 6

Answer: C

Question 7

Answer 7

Answer: A

Question 8

Answer 8

Answer: B

Question 9

Answer 9

Answer: C

Question 10

Answer 10

Answer: D

Question 11

Answer 11

Answer: C

Question 12

Answer 12

Answer: C

Question 13

Answer 13

Answer: C

Question 14

Answer 14

Answer: C

Question 15

Answer 15

Answer: B

Question 16

Answer 16

Answer: A

Question 17

Answer 17

Answer: Marks for zAAP, zIIP, IFL and ICF

Question 18

Answer 18

Answer: A physical machine can be partitioned into several Logical Partitions called LPARs. Each LPAR runs its own copy of the operating system. The component which provides this facility in PR/SM.

Question 19

Answer 19

(c) Answer: marks for: z/OS LPARs or separate CECs (must be at least two), a coupling facility, a sysplex timer and ETR channels from CECs to sysplex timer (or mention of STP and an ETS connected to HMC), CF channels between each z/OS system and the CF, DASD along with FICON/ESCON channels from each z/OS system
(d) Answer: depends on chosen configuration (need two of everything with valid connectivity: ICF v. external CF, internal IC links v. external ICB/ISC, channel paths, switches if any etc.)

Question 20

Answer 20

Answer: 5 marks for List, Lock or Cache and 10 marks for an example usage

Question 21

Answer 21

Answer: By using 2 LPARs, one can be brought down to perform the upgrade, while the other continues to serve the application. Once the new system is brought into the Sysplex, the other system can be brought down for its upgrade. This is known as a rolling upgrade.

Question 22

Answer 22

Answer: three from ISPF/TSO SUBMIT, network (NJE), from a running program (via internal reader), from a card reader (virtual or otherwise).

Question 23

Answer 23

Answer: JES2 initiator selects based on matching jobclass letter and priority; WLM initiator selects based on WLM goals such as service class, importance and system capacity.

Question 24

Answer 24

Answer: DISP=SHR, DISP=OLD.

Question 25

Answer 25

Answer: Corrupt data read and fed into reports from partially updated file

Question 26

Answer 26

Answer: Statically coordinate the times or serialise the running of all jobs.

Question 27

Answer 27

Answer: e.g. Overrun of batch window (as files grow larger) or complication and effort in overall coordination of scheduling all the independent jobs which want access.

Question 28

Answer 28

Answer: Updates use DISP=OLD to get exclusive lock; reads get DISP=SHR for shared readonly access; JES handles scheduling.

Question 29

Answer 29

Answer: Marks for noting symbolic name v. numeric file descriptor/handle, the exposing of the DDNAME in JCL where it can be pointed at the desired dataset without changing the program (extra layer of indirection), accessibility of spool datasets via name (SDSF), advantage with complex programs (run with test data or for other departments), naming conventions for many outputs (contrast with just stdin/stdout/stderr).