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technology Online Quiz - 1555

Description: technology Online Quiz - 1555
Number of Questions: 20
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Tags: technology
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Which of the following is valid about shared containers?

technology

  1. These are reusable job elements.

  2. They can only be used within a project

  3. When shared containers are modified. Modifications are reflected in all the jobs that use them.

  4. None of the above

Show answer
Correct Option: C
  1. What are the ways to execute datastage jobs? a. From Datastage Director (menu Job -> Run now...) b. From command line using a dsjob command c. Datastage routine can run a job (DsRunJob command) d. By a job sequencer
technology

  1. a, b & d

  2. a & b

  3. a & d

  4. a, b, c &d

Show answer
Correct Option: D

How copying of data between Parallel Stage Operators be minimized

technology

  1. Combinability mode

  2. Preserve partitioning

  3. Execution Mode

  4. Don’t combine mode

Show answer
Correct Option: B

A graph parameter whose value can be overwritten with user input is a formal parameter

technology

  1. True

  2. False

Show answer
Correct Option: A

A rule is an instruction in a transform function that directs the construction of one field in an output record

technology

  1. True

  2. False

Show answer
Correct Option: A

Choose package file extensions

technology

  1. mp

  2. cfg

  3. xfr

  4. dml

Show answer
Correct Option: C,D

At phase break temporary files are written in the layout of component upstream of the phase break

technology

  1. True

  2. False

Show answer
Correct Option: B

Subgraphs and Macros are both reusable graph segments constructed with Ab Initio pre-built components.

technology

  1. True

  2. False

Show answer
Correct Option: A

which one is not a dedup sort parameter

technology

  1. select

  2. output_select

  3. keep

  4. check-sort

Show answer
Correct Option: B

Select the odd man out

technology

  1. Broadcast

  2. Replicate

  3. Partition by Round-Robin

  4. Partition by Key

Show answer
Correct Option: B

which one is not a defined component tolerance for reject event.

technology

  1. Abort on first reject

  2. Never abort

  3. Abort on predefiend event

  4. Use limit/ramp

Show answer
Correct Option: C

Checkpointed Sort sorts and merges data records, inserting a checkpoint between the sorting and merging phases.

technology

  1. True

  2. False

Show answer
Correct Option: A

AI Explanation

To answer this question, let's understand the concept of Checkpointed Sort.

Checkpointed Sort is a technique used in distributed systems to efficiently sort and merge data records. It involves inserting a checkpoint between the sorting and merging phases to ensure fault tolerance and recovery.

During the sorting phase, the data records are divided into smaller chunks and sorted independently on different nodes or processors. Once the sorting is complete, a checkpoint is inserted to mark the progress made so far.

In the merging phase, the sorted chunks are combined and merged to produce the final sorted output. If a failure occurs during the merging phase, the system can recover by starting from the last checkpoint and resume the merging process.

Therefore, the statement "Checkpointed Sort sorts and merges data records, inserting a checkpoint between the sorting and merging phases" is true. The checkpoint ensures fault tolerance and recovery in case of failures during the merging phase.

Whats ICONV?

technology

  1. Converts string to user defined format.

  2. Converts string to internal storage format.

  3. Converts internal storage format to String.

  4. None of the above

Show answer
Correct Option: B

Is it possible to run a server job in parallel mode?

technology

  1. True

  2. False

Show answer
Correct Option: A

Environment Variables can be over-ridden at the job level?

technology

  1. True

  2. False

Show answer
Correct Option: A

Which of the following Stages have Reject link option?

technology

  1. Transformer Stage

  2. Join Stage

  3. Lookup Stage

  4. Merge Stage

Show answer
Correct Option: A,C,D

Which of the following Stages do not transform the data?

technology

  1. Transform Stage

  2. Sort Stage

  3. File Stage

  4. Copy Stage

Show answer
Correct Option: B,C,D

What is the default DataStage cache size?

technology

  1. 256 MB

  2. 128 MB

  3. 64 MB

  4. 512 MB

Show answer
Correct Option: A

AI Explanation

To answer this question, you need to have knowledge of IBM InfoSphere DataStage, which is a data integration and transformation tool.

The default DataStage cache size is 256 MB.

Option A) 256 MB - This option is correct because it represents the default DataStage cache size. Option B) 128 MB - This option is incorrect because it does not represent the default DataStage cache size. Option C) 64 MB - This option is incorrect because it does not represent the default DataStage cache size. Option D) 512 MB - This option is incorrect because it does not represent the default DataStage cache size.

The correct answer is A) 256 MB. This option is correct because it represents the default DataStage cache size.

How do you execute Datastage job from command line prompt?

technology

  1. dsjob run

  2. dsjobrun

  3. dsjob -run

  4. run jobname

Show answer
Correct Option: C

AI Explanation

To execute a Datastage job from the command line prompt, you can use the "dsjob" command with the "-run" option.

The correct answer is C) dsjob -run.

Here is an explanation of each option:

A) dsjob run - This option is incorrect because the correct syntax is "dsjob -run".

B) dsjobrun - This option is incorrect because it does not follow the correct syntax. The correct syntax is "dsjob -run".

C) dsjob -run - This option is correct. The "-run" option is used to execute a Datastage job from the command line prompt.

D) run jobname - This option is incorrect because it does not follow the correct syntax. The correct syntax is "dsjob -run".

Therefore, the correct answer is C) dsjob -run.

How to manage Datastage DataSets?

technology

  1. Datastage Designer GUI

  2. orchadmin Command

  3. dsrecords Command

  4. all of the above

Show answer
Correct Option: D
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