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databases Online Quiz - 223

Description: databases Online Quiz - 223
Number of Questions: 20
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Tags: databases
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I am working on manager number field on some table. which is correct usage of nvl function usage....?

technology databases

  1. nvl(mgrno,0)

  2. nvl(mgrno,'none')

  3. nvl('mgrno',0)

  4. nvl(mgrno,'0')

Show answer
Correct Option: A

Where do I need to configure to tell how oracle operates while it is running...?

technology databases

  1. control files

  2. password files

  3. parameter files

  4. redo logs

Show answer
Correct Option: C

find the SGA components

technology databases

  1. buffer cache

  2. large pool

  3. java pool

  4. all the above

Show answer
Correct Option: D

Distinct keyword must appear directly after the select keyword in SQL Query....
technology databases

  1. True

  2. False

Show answer
Correct Option: A

Which statements excute without error(select all)

technology databases

  1. select ename||',is the'||job from emp

  2. select ename,||'is the||job from emp

  3. select 'ename'||'is the'||'job' from from emp

  4. select ename||concat('is the',job) from emp

Show answer
Correct Option: A,C

An Element can be

technology databases

  1. Source file

  2. Directories

  3. Binary files

  4. All the above

Show answer
Correct Option: D

What is a Configuration Specification

technology databases

  1. It is a dynamic view.

  2. It is a rule determine which versions of an element are visible in the new view

  3. None of the above.

  4. All of the above.

Show answer
Correct Option: B

What is the operation to get a file from ClearCase

technology databases

  1. Check-In

  2. Check-Out

  3. Deliver

  4. Retrieve

Show answer
Correct Option: B

When you check in the file into ClearCase

technology databases

  1. A new version of the file will be added

  2. The current version will be updated

  3. The current version of the file will be deleted

  4. None

Show answer
Correct Option: A

How do you propogate changes from one Branch to other

technology databases

  1. By Merging

  2. By Sub Branching

  3. By Creating a view

  4. None of the above

Show answer
Correct Option: A

How do we create branches using command line

technology databases

  1. Makebranch

  2. Mkbranch

  3. Mhbr

  4. None of the above

Show answer
Correct Option: B

What is the goal of Merging

technology databases

  1. To enable parallel development

  2. To Enable single user development

  3. To Enable multi site development

  4. None of the above

Show answer
Correct Option: A

VOB stands for

technology databases

  1. Versioned object basic

  2. Very old basis

  3. Versioned object base

  4. None

Show answer
Correct Option: C

Versioned object base

technology databases

  1. Single Project

  2. Multiple project

  3. Multiple projects of same type

  4. None of the above

Show answer
Correct Option: B

Whar are the different type of Views

technology databases

  1. Snapshot

  2. Dynamic

  3. Multi Dynamic

  4. Recursive

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Correct Option: A

Which type of view will be using MVFS

technology databases

  1. Dynamic

  2. Snapshot

  3. Both a & b

  4. None

Show answer
Correct Option: A

What are the different type of Check-Out operations

technology databases

  1. Reserved

  2. Un-reserved

  3. Both a & b

  4. None

Show answer
Correct Option: C

Whar are the advantages of Branching

technology databases

  1. It allows different projects to use the same source at the same time

  2. It allows changes across multiple elements to be logically grouped together

  3. It controls public/private work

  4. All the above

Show answer
Correct Option: A

What are the different types of Merges

technology databases

  1. Trivial

  2. Non-Trivial

  3. Automatic

  4. All the above

Show answer
Correct Option: D

AI Explanation

To answer this question, let's go through each option to understand why it is correct or incorrect:

Option A) Trivial - This option is incorrect because trivial merges refer to merges that do not involve any conflicts or complex changes. They are straightforward and do not require much effort.

Option B) Non-Trivial - This option is incorrect because non-trivial merges refer to merges that involve conflicts or complex changes. They require careful consideration and decision-making to resolve conflicts and ensure the changes are integrated correctly.

Option C) Automatic - This option is incorrect because automatic merges refer to merges that can be performed automatically by version control systems. They typically occur when the changes being merged do not conflict with each other.

Option D) All the above - This option is correct because it includes all the types of merges mentioned above. Trivial merges, non-trivial merges, and automatic merges are all different types of merges that can occur in version control systems.

Therefore, the correct answer is option D) All the above.

Following files cannot be merged

technology databases

  1. Html

  2. Java

  3. Binary

  4. Ascii

Show answer
Correct Option: C
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