Global Assam Educational Hub

Habit 1 . Cultivate Inner Networks: Entrepreneurs practicing the art of business success know the power of networks. They take the time to identify and build relationships with key peers, mentors, and advisors. This inner network provides support, direction, and an increased number of people to assist. Having an inner network of five people who have a network of five more, grows the network exponentially. Habit 2. Customer Centric: Business success requires an unwavering commitment to the customer. This commitment encompasses a mindset of understanding the customers' world. Understanding the customers wants and needs provides the business with a greater opportunity to earn a loyal customer base. Focus away from business and profits, and toward what you can do to improve the life of your customers.

  Image Source https://s7280.pcdn.co/wp-content/uploads/2016/06/database-blue.png What is cold backup and hot backup ? 1. Cold Backup : It is copying the three sets of files (database files, redo logs, and control file) when the instance is shut down. This is a straight file copy, usually from the disk directly to tape. You must shut down the instance to guarantee a consistent copy. If a cold backup is performed, the only option available in the event of data file loss is restoring all the files from the latest backup. All work performed on the database since the last backup is lost.  2. Hot Backup : Some sites (such as worldwide airline reservations systems) cannot shut down the database while making a backup copy of the files. The cold backup is not an available option. What is meant by Proactive, Retroactive and Simultaneous Update. 1. Proactive Update: The updates that are applied to database before it becomes effective in real world. 2. Retroactive Update: The upd...

Describe the three levels of data abstraction? There are three levels of abstraction:  1. Physical level: The lowest level of abstraction describes how data are stored. 2. Logical level: The next higher level of abstraction, describes what data are stored in database and what relationship among those data. 3. View level: The highest level of abstraction describes only part of entire database. Define the "integrity rules" in DBMS (Data Base Management System)? There are two Integrity rules.  1. Entity Integrity: States that "Primary key cannot have NULL value" 2. Referential Integrity: States that "Foreign Key can be either a NULL value or should be Primary Key value of other relation. How is the data structure of System R different from the relational structure? Unlike Relational systems in System R  1. Domains are not supported 2. Enforcement of candidate key uniqueness is optional 3. Enforcement of entity integrity is optional 4. Referential...

Image Courtesy www.tutorialandexample.com     Q. What is  First Normal Form (1 NF )? The domain of attribute must include only atomic values. Q. What is Second Normal Form ( 2NF)? A relation schema R is in 2NF if it is in 1NF and every non-prime attribute A in R is fully functionally dependent on primary key.                                                                             Q. What is Third Normal Form (3NF)? A relation schema R is in 3NF if it is in 2NF and for every FD X A either of the following is true  1. X is a Super-key of R. 2. A is a prime attribute of R. In other words, if every non prime attribute is non-transitively dependent on primary key.

  Q. Explain the meaning of the expression ACID transaction. ACID means Atomic, Consistency, Isolation, Durability, so when any transaction happen it should be Atomic that is it should either be complete or fully incomplete. There should not be anything like Semi complete. The Database State should remain consistent after the completion of the transaction. If there are more than one Transaction then the transaction should be scheduled in such a fashion that they remain in Isolation of one another. Durability means that Once a transaction commits, its effects will persist even if there are system failures. Image Courtesy  :media.proprofs.com Q. Explain the difference between an explicit and an implicit lock. Explicit Lock :- Lock is explicitly requested for a record or table. Implicit Lock :- Lock is implied but is not acquired. Q. Explain how a database could be recovered via reprocessing. Why is this generally not feasible?

 What do you mean by atomicity and aggregation in DBMS ? 1. Atomicity: Either all actions are carried out or none are. Users should not have to worry about the effect of incomplete transactions. DBMS ensures this by undoing the actions of incomplete transactions. 2. Aggregation: A concept which is used to model a relationship between a collection of entities and relationships. It is used when we need to express a relationship among relationships. Inage Courtesy www.blog.paessler.com  What is a Phantom Deadlock? In distributed deadlock detection, the delay in propagating local information might cause the deadlock detection algorithms to identify deadlocks that do not really exist. Such situations are called phantom deadlocks and they lead to unnecessary aborts.  What is a checkpoint and When does it occur? A Checkpoint is like a snapshot of the DBMS state. By taking checkpoints, the DBMS can reduce the amount of work to be done during restart in the event of subse...

 What is indexing and what are the different kinds of indexing? Indexing is a technique for determining how quickly specific data can be found.  Types:  1. Binary search style indexing 2. B-Tree indexing 3. Inverted list indexing 4. Memory resident table 5. Table indexing Image Courtesy : www.javaassignmenthelp.com What is system catalog or catalog relation? How is better known as? A RDBMS maintains a description of all the data that it contains, information about every relation and index that it contains. This information is stored in a collection of relations maintained by the system called metadata. It is also called data dictionary.

Post Graduate (PG) one year Diploma is offered by the Department of Foreign Language ,Gauhati University, Assam ,India . Duration : Full time two semester course (one year). For any details regarding the course one may directly contact to the department on below mentioned address or contact details Department of Foreign Languages Gauhati University, Guwahati 781014, Assam Phone : +91-94350-43124 Email : foreignlanguages@gauhati.ac.in SYLLABUS FOR CERTIFICATE IN FRENCH: The total marks for the entire course will be 200 of which 70% will be written and the remaining 30% will  be oral. The course will have three papers as follows: S1.1 Paper I Grammar – 50 Translation from French to English – 20. S2.1 Paper II Grammar – 30 Translation from English to French – 20. Essay or letter writing - 20 S2.2 Paper III Viva-voce Conversation in French - 20 Reading and oral translation from French to English – 20. Dictation – 20 Recommended Text book: Le Nouv eau Sans Frontieres – I  

 Gauhati University is conducting the Post Graduate Entrance Test (PGET)-2022 for admission to the Post Graduate Courses under Gauhati University and affiliated colleges for the  academic year 2022-2023. The PGET-2022 will be held in 11 centres of North Eastern States as  per the details given below.  Opening of online application form: 20/06/2022 (05:00 PM)  Last date for submission of online application form: 05/07/2022 (12:00 Mid night)  Date of PGET-2022: 19/07/2022 to 21/07/2022  Examination centres:  Guwahati,  Barpeta,  Shillong,  Dhubri,  Tezpur,  Lakhimpur, Itanagar,  Dibrugarh,  Jorhat,  Diphu and  Silchar

  আসাম সরকারী চাকরির শূন্যপদে অনলাইনে আবেদন করুন: আসাম সরাসরি নিয়োগ কমিশন  The Assam Direct Recruitment Commission , Assam Government Job Vacancy Recruitment Online Process.    আসাম ডাইরেক্ট রিক্রুটমেন্ট কমিশন