1.
The Tracks on the disk which can be accused without repositioning the R/W heads is
Correct Answer
B. Cylinder
Explanation
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".
2.
Which of the following is true about GUI?
Correct Answer
C. Both a and b
Explanation
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.
3.
A computer system consisting of its processor, memory and I/O devices accept data, process it and produce the output results .Con you tell in which component raw data is fed?
Correct Answer
B. Main memory
Explanation
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.
4.
The mechanical diskette drive in which you can insert diskette is connected to the computers bus
Correct Answer
C. Communication
Explanation
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.
5.
A set of Programs that handles firms database responsibilities is called a
Correct Answer
D. All of these
Explanation
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.
6.
You are in the process of analyzing a problem that’s require you to collect and stores TCP/IP packets .Which of the following is best suited for this purpose?
Correct Answer
D. Network Monitor
Explanation
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.
7.
A top to bottom relationship among the items in a database is established by
Correct Answer
C. Hierarchical Schema
Explanation
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.
8.
The process of transferring data for intend a peripheral device into a disk (or the intermediate store ) So that it can be transferred to peripheral at more convenient time or in bulk is known as-----------
Correct Answer
B. Spooling
Explanation
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.
9.
Which of the following system programs forgoes the production of object code to generate absolute machine code and load it into the physical main storage location from which it will be executed immediately upon completion of the Assembly?
Correct Answer
A. Land and go assembler
Explanation
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.
10.
Relocation bits is used by relocating loader are specified (generate) by
Correct Answer
B. Linker
Explanation
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.
11.
From which location is the first computer instruction available on boot up?
Correct Answer
C. ROM BIOS
Explanation
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.
12.
Abstraction is __________
Correct Answer
A. The act of representing the essential feature of something without including much detail
Explanation
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.
13.
Aggregation is a special form of ______________
Correct Answer
C. Association
Explanation
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.
14.
Consider an operation of addition for two numbers ,operating will generate a sum .If the operands are strings and the same operation would be produce a third string by a concatenation This feature is called _______
Correct Answer
C. PolymorpHism
Explanation
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.
15.
In E-R diagrams, the term cardinality is a synonym for the term _______
Correct Answer
B. Degree
Explanation
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.
16.
Which of the following is not context free grammar components?
Correct Answer
D. List
Explanation
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.
17.
Which of the following is a universal gate?
Correct Answer
D. NAND
Explanation
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.
18.
In an oracle server index __________
Correct Answer
D. All of these
Explanation
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".
19.
Which of the following is a phrase of RAD model?
Correct Answer
D. All of these
Explanation
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.
20.
________ is a set design steps that allows DFD with transformed flow characteristics to be mapped into a predefined template for program structure
Correct Answer
B. Transform mapping
Explanation
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.
21.
A combinational logic circuit which is used to send data coming from a single source to or more separate destination is called _______
Correct Answer
D. Demultiplexer
Explanation
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.
22.
What does microprocessor speed depends on?
Correct Answer
C. Address bus width
Explanation
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."
23.
The Trap is one of the interrupts available in Intel 8085. Which one statement is true?
Correct Answer
E. None of these
24.
The 2s complement of binary number 010111.1100 is
Correct Answer
B. 101000.0100
Explanation
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.
25.
In 8086 the overflow flag is set when
Correct Answer
D. Signed numbers go out their range after an arithmetic operation
Explanation
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.