Most freuently Asked Cognos Data Warehouse Interview Questions and Answers for freshers and experienced pdf free download
1. What are products of cognos?
Cognos 6.6 7.0,7.3(PowerPlay, Impromptu)--ReportNet1.0,1.1mr1, 1.1mr22---ReportNet 8.0(latest)IWR is use by Impromptu to publish reports, PPES is used by PP, Cognos Connection is used by repornet. there are many other tools but these are the main.
2. How can i test reports in cagonos?
In cognos report net by the validate report option a report can be tested. If there will be any error, it will specify the the error, unless it will give message -'report specification is valid'.
After creating the report we will connect to the oracle and we will write the sql query and we will compare this 2 reports .
3. How can i schedule reports in cognos?
By using Cognos Schedular, one can schedule the running reports in Impromptu to execute and save it in desired format.
By using Cognos MACRO script language the reports can be executed and distributed to recipients by using mail applications.
Compiled Cognos MACROs can be scheduled using Cognos Schedular.
4. How can create users and permissions in cognos?
n impromptu menu go to Catlog->User profiles -> userclass tab -> click on Creator ->u can give there folder access,table access,filters,Governor etc
you can crate users by using USERS PROFILE option......and you can give permissions using ROLE IN C8 and GOVERNERS in C7
5. What is Cognos Visualizer and Cognos Scripting?
Visualizer is a representation of data cubes in a dashboard format. We can drill through to the ground level of a hierarchy as like in power play report but cannot add or remove fields dynamically.
Cognos script editor : We can write cognos macros or programs in this tool and can fine tune or process some execution
6. What is meant by Junk Dimension?
The junk dimension is simply a structure that provides a convenient place to store the junk attributes
7. How do add dynamic titles in PP?
PowerplayFrom format menu-->title, header & footer-->title-->insert report filename
8. What you mean by Drill across and what is the difference between drill through, drill across?
Drill across means when you are moving from one report to another report like country in one report and States in another Report whereas if the report is using same report from moving from country to state. In other when you are moving details level if you are using the different report it is drill across and if you are using same report it is drill through.
9. What is loop in framework manager?
Loop: loop is a closed path (relation) that exists among 3 (or) more tables. For example, if we have '3' tables T1, T2, T3 then, a loop exists among these tables only when we create joins in the following fashion:
Loop: T1 ---> T2 ---> T3 ---> T1
To resolve the above problem, we have to create a shortcut (or) Alias to the Table T1.
No Loop: T1 ---> T2 ---> T3 ---> Alias (or) Shortcut of T1
10. How create measures and Demensions?
You can create measure once you import all the data into the data source.You can create measures and dimensions by draging the required source from datasource into dimension map and measure tab.(need to find scope of measures for all the dimensions)
11. what is meant by alternate drill down with ex?
Alternate drill down path means there will be two path to opt.For example- We will have time dimension now the client requirement is they want two type of year -one is calender year(Jan-Dec) and another is fiscal year(Apr-Mar).
12. What is the difference between enterprise data warehouse and data warehouse?
Big Organizations have a lot of diversified sources of data.There might be a dataware house exclusively for transport and others for data related to the project the company runs.In such case the complete enterprise's(company's) date ware house is a big combination of all and is known the Enterprise data Warehouse(EDW)
13. How you drill from powerPLay to Impromptu? Explain all Steps?
go to tran former,
build the cube
right click on the cube and open properties
go to drill through tab and select your report from that browse option
14. What is Zero-foot print?
What are the other methods working as deployment functionality?
Cognos offers Portal Services that allow organizations to easily manage and display Cognos business intelligence, planning, and scorecarding in your existing enterprise information portals. Including Cognos reports, analysis, dashboards, scorecards, and other capabilities drives higher returns in your information and portal investments.
Cognos portals offer:
Zero Footprint: Cognos portals have no footprint on the user's desktop. Anyone inside or outside the organization with a Web browser can access and interact with content.
Intuitive User Interface: No special training is required to use the portal. Standard browser interface actions-such as following hypertext links, copying, and pasting-allow users to access and organize business intelligence content quickly and easily
15. What is difference between PAGE BREAK and Section Report?
What is Main Advantage Datawarehousing over Oracle?
Section-section is eliminate the duplicate recod.but report looking separate bluck.
setpagebreak means to display the reports in onepage. eg. suppose u create a list report ordermethod,orderyear,revenu
when u create section on ordermethod.it will eliminate the duplicate record.but when u apply the set pagebreakc.report display in onepage.like fax reports in onepage,email reports in another page.this in cognos 8 querystudio.
16. Give me any example of semi and non additive measures?
Semi-Additive: Semi-additive facts are facts that can be summed up for some of the dimensions in the fact table, but not the others. Non-Additive: Non-additive facts are facts that cannot be summed up for any of the dimensions present in the fact table. Current Balance and Profit Margin are the facts.Current Balance is a semi-additive fact, as it makes sense to add them up for all accounts (what's the total current balance for all accounts in the bank?), but it does not make sense to add them up through time (adding up all current balances for a given account for each day of the month does not give us any useful information). Profit Margin is a non-additive fact, for it does not make sense to add them up for the account level or the day level.
17. What is drill down and slicing and dicing whats the difference between them?
Drilling lets you quickly move from one level of detail to another to explore different aspects of your business. Drilling down moves you down in the hierarchy; drilling up moves you up in the hierarchy.
Slicing and Dicing
While you can drill to look at information at any level, you can slice and dice to select the exact information you want in your report.
18. What is the difference between a cascading report and drillthru report?why do we go for drill thru report?
Cascading report works based on the condition but drill thru work based on the data item what we select as a drill thru options
19. What is catalog and types of catalogs in cagonos and which is better?
A catalog is a file containing the information (Database tables) that Impromptu users need to create reports.
► personal
► distributed
► shared
► secured
shared catalog is better
20. What Junk Dimension contains?
it contains the miscellaneous attributes such as flags , which does belong to the main dimension table.
for eg; In a sales order fact table ,some informations like,
web-order , whether this is a online order or not
new_cust , Is this person a new customer ?
verification , whether the order has been verified?
More IBM Cognos Interview Questions: Click Here
1. What are products of cognos?
Cognos 6.6 7.0,7.3(PowerPlay, Impromptu)--ReportNet1.0,1.1mr1, 1.1mr22---ReportNet 8.0(latest)IWR is use by Impromptu to publish reports, PPES is used by PP, Cognos Connection is used by repornet. there are many other tools but these are the main.
2. How can i test reports in cagonos?
In cognos report net by the validate report option a report can be tested. If there will be any error, it will specify the the error, unless it will give message -'report specification is valid'.
After creating the report we will connect to the oracle and we will write the sql query and we will compare this 2 reports .
3. How can i schedule reports in cognos?
By using Cognos Schedular, one can schedule the running reports in Impromptu to execute and save it in desired format.
By using Cognos MACRO script language the reports can be executed and distributed to recipients by using mail applications.
Compiled Cognos MACROs can be scheduled using Cognos Schedular.
4. How can create users and permissions in cognos?
n impromptu menu go to Catlog->User profiles -> userclass tab -> click on Creator ->u can give there folder access,table access,filters,Governor etc
you can crate users by using USERS PROFILE option......and you can give permissions using ROLE IN C8 and GOVERNERS in C7
5. What is Cognos Visualizer and Cognos Scripting?
Visualizer is a representation of data cubes in a dashboard format. We can drill through to the ground level of a hierarchy as like in power play report but cannot add or remove fields dynamically.
Cognos script editor : We can write cognos macros or programs in this tool and can fine tune or process some execution
6. What is meant by Junk Dimension?
The junk dimension is simply a structure that provides a convenient place to store the junk attributes
7. How do add dynamic titles in PP?
PowerplayFrom format menu-->title, header & footer-->title-->insert report filename
8. What you mean by Drill across and what is the difference between drill through, drill across?
Drill across means when you are moving from one report to another report like country in one report and States in another Report whereas if the report is using same report from moving from country to state. In other when you are moving details level if you are using the different report it is drill across and if you are using same report it is drill through.
9. What is loop in framework manager?
Loop: loop is a closed path (relation) that exists among 3 (or) more tables. For example, if we have '3' tables T1, T2, T3 then, a loop exists among these tables only when we create joins in the following fashion:
Loop: T1 ---> T2 ---> T3 ---> T1
To resolve the above problem, we have to create a shortcut (or) Alias to the Table T1.
No Loop: T1 ---> T2 ---> T3 ---> Alias (or) Shortcut of T1
10. How create measures and Demensions?
You can create measure once you import all the data into the data source.You can create measures and dimensions by draging the required source from datasource into dimension map and measure tab.(need to find scope of measures for all the dimensions)
11. what is meant by alternate drill down with ex?
Alternate drill down path means there will be two path to opt.For example- We will have time dimension now the client requirement is they want two type of year -one is calender year(Jan-Dec) and another is fiscal year(Apr-Mar).
12. What is the difference between enterprise data warehouse and data warehouse?
Big Organizations have a lot of diversified sources of data.There might be a dataware house exclusively for transport and others for data related to the project the company runs.In such case the complete enterprise's(company's) date ware house is a big combination of all and is known the Enterprise data Warehouse(EDW)
13. How you drill from powerPLay to Impromptu? Explain all Steps?
go to tran former,
build the cube
right click on the cube and open properties
go to drill through tab and select your report from that browse option
14. What is Zero-foot print?
What are the other methods working as deployment functionality?
Cognos offers Portal Services that allow organizations to easily manage and display Cognos business intelligence, planning, and scorecarding in your existing enterprise information portals. Including Cognos reports, analysis, dashboards, scorecards, and other capabilities drives higher returns in your information and portal investments.
Cognos portals offer:
Zero Footprint: Cognos portals have no footprint on the user's desktop. Anyone inside or outside the organization with a Web browser can access and interact with content.
Intuitive User Interface: No special training is required to use the portal. Standard browser interface actions-such as following hypertext links, copying, and pasting-allow users to access and organize business intelligence content quickly and easily
15. What is difference between PAGE BREAK and Section Report?
What is Main Advantage Datawarehousing over Oracle?
Section-section is eliminate the duplicate recod.but report looking separate bluck.
setpagebreak means to display the reports in onepage. eg. suppose u create a list report ordermethod,orderyear,revenu
when u create section on ordermethod.it will eliminate the duplicate record.but when u apply the set pagebreakc.report display in onepage.like fax reports in onepage,email reports in another page.this in cognos 8 querystudio.
16. Give me any example of semi and non additive measures?
Semi-Additive: Semi-additive facts are facts that can be summed up for some of the dimensions in the fact table, but not the others. Non-Additive: Non-additive facts are facts that cannot be summed up for any of the dimensions present in the fact table. Current Balance and Profit Margin are the facts.Current Balance is a semi-additive fact, as it makes sense to add them up for all accounts (what's the total current balance for all accounts in the bank?), but it does not make sense to add them up through time (adding up all current balances for a given account for each day of the month does not give us any useful information). Profit Margin is a non-additive fact, for it does not make sense to add them up for the account level or the day level.
17. What is drill down and slicing and dicing whats the difference between them?
Drilling lets you quickly move from one level of detail to another to explore different aspects of your business. Drilling down moves you down in the hierarchy; drilling up moves you up in the hierarchy.
Slicing and Dicing
While you can drill to look at information at any level, you can slice and dice to select the exact information you want in your report.
18. What is the difference between a cascading report and drillthru report?why do we go for drill thru report?
Cascading report works based on the condition but drill thru work based on the data item what we select as a drill thru options
19. What is catalog and types of catalogs in cagonos and which is better?
A catalog is a file containing the information (Database tables) that Impromptu users need to create reports.
► personal
► distributed
► shared
► secured
shared catalog is better
20. What Junk Dimension contains?
it contains the miscellaneous attributes such as flags , which does belong to the main dimension table.
for eg; In a sales order fact table ,some informations like,
web-order , whether this is a online order or not
new_cust , Is this person a new customer ?
verification , whether the order has been verified?
More IBM Cognos Interview Questions: Click Here
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