This Computer Quiz is important for exams such as IBPS Clerk, IBPS PO, IBPS SO, SBI SO, SBI PO, SBI Clerk, IBPS RRB Officer, IPPB, RBI Grade B, RBI Assistant, SSC CGL, SSC CHSL, SSC Stenographer etc.
If you are preparing for any Banking, Insurance, or Government Competitive Recruitment or Entrance exams, you will likely need to solve a section on Computers. Computer Quiz for Bank, SSC Exams will help you learn concepts on important topics in Computer Knowledge & Computer Awareness.
Que. 1 - Which of the following contains information about the structure of a database?
1. Database management system
2. Data dictionary
3. Data repository
4. Data warehouse
5. Data modelling
Solution
Answer - 2
A data dictionary, or metadata repository, as defined in the IBM Dictionary of Computing, is a "centralized repository of information about data such as meaning, relationships to other data, origin, usage, and format." Oracle defines it as a collection of tables with metadata. The term can have one of several closely related meanings pertaining to databases and database management systems (DBMS):
- A document describing a database or collection of databases
- An integral component of a DBMS that is required to determine its structure
- A piece of middleware that extends or supplants the native data dictionary of a DBMS
Que. 2 - A technique used by codes to convert an analog signal into a digital bit stream is known as ________.
1. Pulse code modulation
2. Pulse stretcher
3. Query processing
4. Queue management
5. None of the above
Solution
Answer - 1
Pulse-code modulation (PCM) is a method used to digitally represent sampled analog signals. It is the standard form of digital audio in computers, compact discs, digital telephony and other digital audio applications. In a PCM stream, the amplitude of the analog signal is sampled regularly at uniform intervals, and each sample is quantized to the nearest value within a range of digital steps.
Que. 3 - A language that can be written on one platform and executed on another platform is said to be ________.
1. Portable
2. Robust
3. Third generation
4. Dynamic
5. static
Solution
Answer - 1
Portability in high-level computer programming is the usability of the same software in different environments. The prerequirement for portability is the generalized abstraction between the application logic and system interfaces. When software with the same functionality is produced for several computing platforms, portability is the key issue for development cost reduction.
Que. 4 - Which of the following is a type of graphical model is used to define a database?
1. Flowchart
2. E-R diagram
3. Organizational model
4. Programming model
5. None of these
Solution
Answer -2
An entity–relationship model (ER model) describes inter-related things of interest in a specific domain of knowledge. An ER model is composed of entity types (which classify the things of interest) and specifies relationships that can exist between instances of those entity types. In software engineering an ER model is commonly formed to represent things that a business needs to remember in order to perform business processes. Consequently, the ER model becomes an abstract data model that defines a data or information structure that can be implemented in a database, typically a relational database.
Que. 5 - In a ________ model there is no separation between the data and the schema, and the amount of structure used depends on the purpose.
1. Array DBMS
2. Blockchain
3. Column-oriented
4. Semi-structured
5. Entity–attribute–value
Solution
Answer - 4
The semi-structured model is a database model where there is no separation between the data and the schema, and the amount of structure used depends on the purpose.
The advantages of this model are the following:
- It can represent the information of some data sources that cannot be constrained by schema.
- It provides a flexible format for data exchange between different types of databases.
- It can be helpful to view structured data as semi-structured (for browsing purposes).
- The schema can easily be changed.
- The data transfer format may be portable.
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