IBPS CWE IT Officers Online Mocks 2

Abstraction refers to the process of representing the essential features or characteristics of something without including unnecessary or excessive detail. It involves simplifying complex concepts or objects to their most fundamental elements, allowing for easier understanding and analysis. This can be seen in various fields such as computer programming, where abstract classes or interfaces are used to define common features without specifying the implementation details. Overall, abstraction helps in managing complexity and focusing on the core aspects of a subject.

GUI, or Graphical User Interface, is a type of user interface that utilizes icons and menus that users can interact with using a mouse. This makes computers more user-friendly and easier to use for non-professionals. Therefore, the correct answer is "Both a and b", as it accurately reflects the true nature of GUI.

A hierarchical schema establishes a top to bottom relationship among the items in a database. This means that there is a strict hierarchy or parent-child relationship among the data elements, with each element having only one parent and multiple children. This type of schema is commonly used in systems where data is organized in a tree-like structure, such as file systems or organizational charts. Network and relational schemas do not necessarily establish a top to bottom relationship among the items in a database.

A universal gate is a gate that can be used to implement any other logic gate. The NAND gate is a universal gate because it can be used to create all other logic gates such as AND, OR, and NOT gates. By connecting multiple NAND gates together, any logic function can be implemented. Therefore, the NAND gate is the correct answer as it is a universal gate.

In a computer system, raw data is fed into the main memory. The main memory, also known as RAM (Random Access Memory), is a temporary storage location where data and instructions are stored during processing. It is directly accessible by the processor and plays a crucial role in the overall performance of the system.

A cylinder in a disk refers to a set of tracks that are located at the same position on each surface of the disk. The R/W heads can access all the tracks within a cylinder without needing to reposition themselves. Therefore, the correct answer is "Cylinder".

Polymorphism refers to the ability of an object to take on many forms. In the given scenario, the operation of addition is performed on two different types of operands: numbers and strings. When the operands are numbers, the operation produces a sum. However, when the operands are strings, the operation produces a concatenated string. This ability of the addition operation to behave differently based on the type of operands is an example of polymorphism.

Spooling is the correct answer because it refers to the process of transferring data from a peripheral device into a disk or intermediate store so that it can be transferred to the peripheral at a more convenient time or in bulk. This technique is commonly used in computer systems to improve efficiency and allow multiple devices to share resources effectively. Multiprocessing, caching, and virtual memory are not directly related to this specific process of data transfer.

In E-R diagrams, the term "cardinality" refers to the number of entities that can be associated with another entity in a relationship. Similarly, the term "degree" in E-R diagrams also refers to the number of entities involved in a relationship. Therefore, "degree" is a synonym for "cardinality" in this context.

The first computer instruction available on boot up is stored in the ROM BIOS (Read-Only Memory Basic Input/Output System). The ROM BIOS contains the firmware that initializes the computer hardware and performs a power-on self-test (POST) to ensure the system is functioning properly. It also provides the necessary instructions for the computer to start the boot process and load the operating system.

The components of a context-free grammar include terminal symbols, non-terminal symbols, and production rules. A terminal symbol represents the basic units of the language, such as individual words or characters. A non-terminal symbol represents a group of related words or phrases. Production rules define how non-terminal symbols can be rewritten in terms of other symbols. However, "List" is not a component of a context-free grammar.

The given question asks for the 2's complement of the binary number 010111.1100. To find the 2's complement, we first need to invert all the bits of the given number. Inverting 0 gives 1 and inverting 1 gives 0. So, the inverted number is 101000.0011. Then, we add 1 to the inverted number. Adding 1 to 101000.0011 gives us 101000.0100. Therefore, the correct answer is 101000.0100.

Aggregation is a special form of association in object-oriented programming. In association, two or more classes are connected in some way, but in aggregation, one class is composed of multiple instances of another class. This means that the aggregated class can exist independently of the class it is a part of. Therefore, the correct answer is association.

The correct answer is "All of these." The RAD model, which stands for Rapid Application Development, is an iterative and incremental software development methodology. It involves various phases, including business modeling, data modeling, and application generation. In the business modeling phase, the requirements and processes of the business are identified and analyzed. In the data modeling phase, the data structures and relationships are defined. Finally, in the application generation phase, the actual software application is developed. Therefore, all of these options are phrases associated with the RAD model.

Transform mapping is a set design steps that allows DFD with transformed flow characteristics to be mapped into a predefined template for program structure. This process helps in converting the data flow diagram (DFD) into a structured program by identifying the necessary modules, data structures, and control structures required for implementation. It ensures that the transformed flow characteristics of the DFD are properly mapped into a program structure that can be easily implemented.

The correct answer is that the overflow flag is set when signed numbers go out of their range after an arithmetic operation. The overflow flag is used to indicate when the result of an arithmetic operation exceeds the maximum positive or negative value that can be represented by the data type being used. This can occur when adding or subtracting signed numbers, and it is important to check the overflow flag to ensure that the result is within the valid range.

The correct answer is "Linker". A linker is responsible for combining multiple object files into a single executable file. During this process, the linker assigns memory addresses to the different sections of code and data. Relocation bits are used by the linker to modify the object code so that it can be loaded at the correct memory addresses. Therefore, the relocating loader itself does not generate the relocation bits; instead, it is the linker that specifies and generates them.

An oracle server index is a schema object that is used to speed up the retrievals of the rows by using a pointer. It is also independent of the table it indexes. Therefore, the correct answer is "All of these".

Network Monitor is the best suited option for collecting and storing TCP/IP packets. NBTSTAT is used for troubleshooting NetBIOS name resolution, Performance Monitor is used for monitoring system performance, NETSTAT is used for displaying active network connections and listening ports, and DHCP Management Console is used for managing DHCP servers. However, Network Monitor specifically focuses on capturing and analyzing network traffic, making it the most appropriate choice for this purpose.

A demultiplexer is a combinational logic circuit that is used to send data coming from a single source to one or more separate destinations. It takes one input and selects one of the multiple outputs based on the control signals. Therefore, a demultiplexer fits the description given in the question.

The mechanical diskette drive is connected to the computer's bus for communication. The bus is responsible for transferring data between different components of the computer system. In this case, the diskette drive uses the bus to send and receive data to and from the computer's memory. The other options, such as data, address, and parallel, are not suitable explanations as they do not accurately describe the connection between the diskette drive and the computer's bus.

The correct answer is "All of these." This is because a set of programs that handle a firm's database responsibilities can be referred to as a Data Base management system (DBMS), a Data Base processing System (DBPS), or a Data management system (DMS). Therefore, all of these terms are correct and can be used interchangeably to describe the set of programs.

The Land and go assembler is the system program that forgoes the production of object code and directly generates absolute machine code. It then loads this code into the physical main storage location and executes it immediately upon completion of the assembly process. This allows for faster execution of the program without the need for additional steps such as linking or loading.

The speed of a microprocessor depends on the width of the address bus. The address bus is responsible for carrying the memory addresses that the microprocessor needs to access. A wider address bus allows the microprocessor to access a larger range of memory addresses in a single cycle, which can result in faster processing speed. Therefore, the correct answer is "Address bus width."

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