Cognos Interview Questions and Answers, Cognos Interview Questions and Answers Freshers, Cognos Interview Questions and Answers, Cognos Interview Questions
Before getting on to the Cognos interview questions, the student must know that the Cognos is a continuously varying field which needs the students as well as professionals to upgrade their skills with the new features and knowledge, to get fit for the jobs associated with Cognos. This post related to Cognos Interview Questions and Answers, Cognos Interview Questions and Answers Freshers, Cognos Interview Questions and Answers, Cognos Interview Questions will help you let out find all the solutions that are frequently asked in you upcoming Cognos interview.
Over thousands of vacancies available for the Cognos developers, experts must be acquaintance with all the component of Cognos technologies. This is necessary for the students in order to have in-depth knowledge of the subject so that they can have best employment opportunities in the future. Knowing every little detail about Cognos is the best approach to solve the problems linked with problem.
APTRON has spent hours and hours in researching about the Cognos Interview Questions and Answers, Cognos Interview Questions and Answers Freshers, Cognos Interview Questions and Answers, Cognos Interview Questions that you might encounter in your upcoming interview. All these questions will alone help you to crack the interview and make you the best among all your competitors.
First of all, let us tell you about how the Cognos technology is evolving in today’s world and how demanding it is in the upcoming years. In fact, according to one study, most of the companies and businesses have moved to the Cognos. Now, you cannot predict how huge the future is going to be for the people experienced in the related technologies.
Hence, if you are looking for boosting up your profile and securing your future, Cognos will help you in reaching the zenith of your career. Apart from this, you would also have a lot of opportunities as a fresher.
These questions alone are omnipotent. Read and re-read the questions and their solutions to get accustomed to what you will be asked in the interview. These Cognos interview questions and answers will also help you on your way to mastering the skills and will take you to the giant world where worldwide and local businesses, huge or medium, are picking up the best and quality Cognos professionals.
This ultimate list of best Cognos interview questions will ride you through the quick knowledge of the subject and topics like Architecture, Create Database, DROP Database, CREATE Table, DROP Table. This Cognos interview questions and answers can be your next gateway to your next job as a Cognos expert.
These are very Basic Cognos Interview Questions and Answers for freshers and experienced both.
Q1: What is called Cognos Reporting tool?
A1: Cognos is an IBM reporting tool which is used for reporting and analysis of various data from different datawarehouse.
Q2: What is Report item?
A2: Report item is defined as a query item which can be dragged and dropped into a work area.
Q3: What is set to be Cardinality?
A3: Cardinality is defined as relationships between the tables. Following are relationship formed between the tables.
- One to One
- One to Many
- Many to Many
- Many to One
Q4: What is defined as Data mining?
A4: Data mining is the process of getting hidden trends from a data ware house.
Q5: What are all the different types of prompt in Cognos?
A5: Following are the different types of prompt in Cognos:
- Value prompt
- Text Prompt
- Date prompt
- Time prompt
- Date and time prompt
Q6: What are the components of Report Net?
A6: Following are the components of Report Net:
- Framework manager
- Cognos connection
- Query Studio
- Report Studio
Q7: What do you mean by Drill Through report?
A7: Drill through reporting is used to link from one report to another report. It has parent and child relationship between the reports.
Q8: Mention the difference between ‘macros’ and ‘prompt’?
A8: Macro is used to run set of instructions to execute the report but prompt provide a way to change the report dynamically.
Q9: Cognos Characteristics
|Ability to deploy charts||Bar, Pie, Line, Crosstabs, Funnel, Scatter, etc|
|Speed of data access||High performance access across all data sources|
|Data Export formats||Excel, HTML, PDF, CSV, XML|
Q10: Define Report item?
A10: It’s nothing but a query item when it is drag and drop into the work area.
Q11: Define query items?
A11: It’s mainly used in Reporting and for BI Authors it is the most essential object from the framework manager. These have lot of properties associated with them and are present in query subjects. They are similar to subsets of query subjects.
Q12: Give the advantages of Cognos?
A12: The advantages of Cognos are:
D) Score carding
Q13: Name the types of report?
A13: A) List report
B) Cross report
C) Blank report
D) Repeater report
E) Chart report
Q14: Define Cognos Reporting tool?
A14: It’s a reporting tool of IBM which help us in reporting and analysis of different data from a data warehouse.Read this blog to find out why Business Intelligence tools are critical to today’s enterprises.
Q15: Name the types of gateway?
A15: There are three types of gateway:
A) CGI (Common Gateway Interface)
B) ISAPI (Internet Service Application Interface)
Q16: Define dimensions?
A16: It defines the structure of a cube. Any dimension must have at least one key attribute and other attributes so that it may define hierarchies.
Q17: What are all the advantages of Cognos?
A17: Following are the advantages of Cognos:
Q18: What are all the types of indexes in Cognos?
A18: Following are the types of Indexes in Cognos:
- Bitmap index
- B-tree index
- Function based index
- Reverse key and composite index
Q19: What is Bitmap Index?
A19: A bitmap index is used for replacement of list of rowids for each key value. This index is mainly efficient for data warehousing as it has low cardinality and low updates.
Q20: What is a Folder?
A20: A folder consists of repository objects like sources, targets, transformation and mapping that help to organize data warehouse.
Q21: What is a Datastore in Cognos?
A21: A data store is nothing but a query database or a relational database or files that can be accessed through IBM Cognos.
Q22: What is a Query Subject?
A22: A Query subject is a set of query items that have inherent relationship and it is basic building block on framework manager.
Q23: Define OLAP Designer?
A23: OLAP Designer is a development tool used to model and create multidimensional databases. A multidimensional database, often referred to as a “cube”, is a highly compressed database and contains summarized information that is optimized for analysis.
Q24: What are shortcuts? Where it can be used? What are the advantages?
A24: There are 2 shortcuts(Local and global) Local used in local repository and global used in global repository. The advantage is reuse an object without creating multiple objects. Say for example a source definition want to use in 10 mappings in 10 different folder without creating 10 multiple source you create 10 shotcuts.
Q25: What are the types of studio?
- Query Studio
- Metrics Studio
- Analysis Studio
- Report Studio
- Event Studio
Q26: Define Query studio?
A26: Query Studio :
is a very user–friendly adhoc query tool that allows users to easily access information. With Query Studio, the user drags and drops fields to execute queries, and with multiple available options at a touch of the mouse, it can group data, create summaries, display charts, filter information and export data. An Author who has access to Querv Studio is referred to as a Business Author.
Q27: Define Metrics studio?
A27: Metrics Studio :
is a powerful scorecard tool that allows for the creation and monitoring of goals through an organization. An Author who has access to Metrics Studio is a Business Manager.
Q28: What is main difference mapplets and mapping?
A28: Reuse the transformation in several mappings, where as mapping not like that.
If any changes made in mapplets it automatically inherited in all other instance mapplets.
Q29: Source table has 5 rows. Rank in rank transformation is set to 10. How many rows the rank transformation will output?
A29: 5 Rank.
Q30: What is bitmap index?
A30: A bitmap for each key value replaces a list of rowids. Bitmap index more efficient for data warehousing because low cardinality, low updates, very efficient for where class.
Q31: Why need staging area database for DWH?
A31: Staging area needs to clean operational data before loading into data warehouse.
Cleaning in the sense your merging data which comes from different source
Q32: What is slowly changing dimension?
A32: Dimension attribute values may change constantly over the time. (Say for example customer dimension has customer_id,name, and address) customer address may change over time.
Q33: What is difference between primary key and unique key constraints?
A33: Primary key maintains uniqueness and not null values Where as unique constrains maintain unique values and null values.
Q34: What are the different uses of a repository manager?
A34: Repository manager used to create repository which contains metadata the informatica uses to transform data from source to target. And also it use to create informatica user’s and folders and copy, backup and restore the repository.
Cognos Conclusion Interview FAQs
We know the list of Cognos Interview Questions and Answers, Cognos Interview Questions and Answers Freshers, Cognos Interview Questions and Answers, Cognos Interview Questions is overwhelming but the advantages of reading all the questions will maximize your potential and help you crack the interview. The surprising fact is that this Cognos interview questions and answers post covers all the basic of the Cognos technology and you have to check out the FAQs of different components of Cognos too.
However, you will be asked with the questions in the interview related to the above mentioned questions. Preparing and understanding all the concept of Cognos technology will help you strengthen the other little information around the topic.
After preparing these interview questions, we recommend you to go for a mock interview before facing the real one. You can take the help of your friend or a Cognos expert to find the loop holes in your skills and knowledge. Moreover, this will also allow you in practicing and improving the communication skill which plays a vital role in getting placed and grabbing high salaries.
Remember, in the interview, the company or the business or you can say the examiner often checks your basic knowledge of the subject. If your basics is covered and strengthened, you can have the job of your dream. The industry experts understand that if the foundation of the student is already made up, it is easy for the company to educate the employ towards advance skills. If there are no basics, there is no meaning of having learnt the subject.
Therefore, it’s never too late to edge all the basics of any technology. If you think that you’ve not acquired the enough skills, you can join our upcoming batch of Cognos Training in Noida. We are one of the best institute for Cognos in noida which provide advance learning in the field of Cognos Course. We’ve highly qualified professionals working with us and promise top quality education to the students.
We hope that you enjoyed reading Cognos Interview Questions and Answers, Cognos Interview Questions and Answers Freshers, Cognos Interview Questions and Answers, Cognos Interview Questions and all the FAQs associated with the interview. Do not forget to revise all the Cognos interview questions and answers before going for the Cognos interview. In addition to this, if you’ve any doubt or query associated with Cognos, you can contact us anytime. We will be happy to help you out at our earliest convenience. At last, we wish you all the best for your upcoming interview on Cognos Technology.