Teach Exam - Exam Start

Question : What is the main purpose of inheritance in OOP?

To create instances of classes

To prevent data abstraction

To establish a parent-child relationship between classes

To define exceptions

none of these

Question : Which principle ensures that only essential information is visible to the outside world?

Polymorphism

Information hiding

Encapsulation

Abstraction

all of these

Question : Which of the following best defines a class?

An instance of an object

A blueprint for creating objects

A variable holding data

A function with a return value

none of these

Question : What is the purpose of the "super" keyword in Java and other similar languages?

It refers to the superclass in inheritance

It creates a new object instance

It defines a new class

It handles exceptions

none of these

Question : What is an abstract class in OOP?

A class with no methods

A class that cannot be instantiated

A class that can only have private members

A class that cannot have methods with parameters

all of these

Question : Which keyword is used to create an instance of a class in most programming languages?

alloc

new

create

instance

none of these

Question : What is the purpose of staffing level estimation in software project management?

To determine the number of hardware components required

To identify potential risks in the project

To allocate appropriate resources to the project

To estimate the maintenance costs of the software

none of these

Question : Which metric is used for estimating the size of a software project?

Cyclomatic Complexity

Function Points (FP)

Defect Density

Software Reliability Index

none of these

Question : What is the main goal of System Testing?

Testing individual components in isolation

Testing the integration between different software components

Testing software functionality from the user's perspective

Identifying defects in the source code

all of these

Question : Which testing approach involves testing individual components or units of code?

Integration Testing

System Testing

Unit Testing

Acceptance Testing

none of these

Question : Reverse engineering is primarily used for:

Creating new software from scratch

Improving software performance

Understanding and documenting existing software

Testing software components

all of these

Question : What is the main goal of software quality assurance?

To eliminate all defects from the software

To ensure the software is defect-free before release

To establish and enforce standards and processes to improve software quality

To test software under different conditions

all of these

Question : Which software life cycle model allows for iterative development and incorporates risk analysis?

Waterfall model

Prototype model

Spiral model

Agile model

none of these

Question : What is the purpose of ARP (Address Resolution Protocol)?

To assign IP addresses to devices

To resolve domain names to IP addresses

To map MAC addresses to IP addresses

To manage network congestion

none of these

Question : Routing involves:

Dividing data into frames

Managing flow control

Determining the best path for data packets

Correcting errors in data transmission

all of these

Question : Contention-based MAC protocols are commonly used in:

Ethernet networks

Token Ring networks

ATM networks

Point-to-Point networks

none of these

Question : Which of the following is NOT a network topology?

Star

Ring

Disk

Mesh

none of these

Question : Data transmission using multiple pathways simultaneously is known as:

Parallel Transmission

Serial Transmission

Duplex Transmission

Half-duplex Transmission

Simultaneous transmission

Question : What is a socket in the context of process-to-process communication?

A hardware device for data transmission

A software interface for network communication

A type of cable used for high-speed data transmission

type of network topology

all of the above

Question : What is the primary function of routing in the network layer?

Data framing

Error correction

Finding the best path for data

Flow control

all of the above

Question : The term "Data" refers to:

The electronic representation of the information(or data)

Basic information

Row Facts and figures

Option 1st and 2nd

none of these

Question : The term "FAT" is stands for_____

File Allocation Tree

File Allocation Table

File Allocation Graph

All of the above

none of these

Question : The term "DFD" stands for?

Data file diagram

Data flow document

Data flow diagram

None of the above

Data function diagram

Question : Which of the following is a top-down approach in which the entity's higher level can be divided into two lower sub-entities?

Aggregation

Generalization

Specialization

All of the above

none of these

Question : The term "NTFS" refers to which one of the following?

New Technology File System

New Tree File System

New Table type File System

Non Transcational file system

none of these

Question : Which of the following is correct according to the technology deployed by DBMS?

Pointers are used to maintain transactional integrity and consistency

Cursors are used to maintain transactional integrity and consistency

Locks are used to maintain transactional integrity and consistency

Triggers are used to maintain transactional integrity and consistency

none of these

Question : What is DBMS?

DBMS is a collection of queries

DBMS is a high-level language

DBMS is a programming language

DBMS stores, modifies and retrieves data

all of the above

Question : In multiprogramming with fixed partitions, if a process requires more memory than is available in a partition, it may lead to:

Fragmentation

Deadlock

Priority inversion

Starvation

none of these

Question : The purpose of a page table in a paging system is to:

Store pages of memory

Manage input/output operations

Translate virtual addresses to physical addresses

Store program instructions

all of these

Question : The primary goal of load control is to:

Prevent processes from running concurrently

Avoid context switching between processes

Ensure that CPU time is evenly distributed among processes

Maximize the usage of virtual memory

all of these

Question : The I/O subsystem in an operating system is responsible for:

Allocating memory for processes

Managing the file system

Managing input/output operations between processes and input/output devices

Allocating CPU time to processes

none

Question : File manipulation operations in an operating system include:

Allocating memory to files

Assigning file names to processes

Loading files into CPU registers

Reading, writing, and modifying file content

none of these

Question : In an operating system, a "buffer cache" is used to:

Store files in memory

Store copies of frequently used files in memory

Store the operating system kernel

Store input/output devices

all of these

Question : A formal model of protection in an operating system provides:

A mathematical framework for analyzing resource allocation

Guidelines for designing user interfaces

Methods for optimizing memory management

Techniques for improving CPU utilization

none of these

Question : The process of removing recursion involves replacing recursive function calls with:

More recursive function calls

Loops

Additional memory allocation

Non-recursive function calls

none of these

Question : In the Tower of Hanoi problem with "n" disks, how many moves are required to solve the problem?

n

2n

2^n - 1

2^n

all of the above

Question : Which collision resolution technique involves placing collided elements in the next available empty slot in the hash table?

Linear probing

Quadratic probing

Separate chaining

Double hashing

none of these

Question : Separate chaining involves storing collided elements in separate data structures, typically in:

Linked lists

Arrays

Stacks

Queues

All of the above

Question : In a directed graph, an edge that points from vertex A to vertex B is denoted as:

(A, B)

[A, B]

A,B

{A, B}

All of the above

Question : Which traversal algorithm is typically implemented using a stack data structure?

DFS

BFS

Both DFS and BFS

Neither DFS nor BFS

none of these

Question : A threaded binary tree is a binary tree in which:

Each node has two children

Each node has at most one child

Each node is connected to its parent

Each node has a thread connecting it to its predecessor or successor

all of the above

Question : Divide and Conquer is an algorithmic paradigm that solves problems by:

Iteratively solving subproblems

Recursively solving subproblems

Using heuristics to find solutions

Greedily combining solutions

none of these

Question : The recurrence equation T(n) = T(n/2) + 1 represents the time complexity of which algorithmic paradigm?

Divide and Conquer

Greedy Algorithms

Dynamic Programming

Brute Force

none of these

Question : If an algorithm's behavior is bounded by "o(f(n)) if g(n)", what notation does it become when the condition is removed?

o(f(n))

o(g(n))

o(f(n) + g(n))

o(f(n) * g(n))

none of these

Question : Conditional asymptotic notation allows for a more nuanced analysis of algorithm behavior under specific conditions. This is particularly useful when:

Analyzing algorithms with constant time complexity

The input size is fixed

The input data is random

Algorithm behavior varies based on certain input characteristics

none of these

Question : Which term refers to the strategy of optimizing an algorithm's use of resources, often by making sacrifices in one aspect for improvements in another?

Greedy algorithm

Divide and conquer

Dynamic programming

Tradeoff

all of these

Analyzing algorithms with constant time complexity

Question : Which data structure often results in a time-space tradeoff by using extra memory to speed up operations?

Arrays

Linked lists

Hash tables

Stacks

Tree

Question : Microcontrollers find application in various fields. What is a typical application of microcontrollers in the automotive industry?

Operating systems for computers

Entertainment systems in airplanes

Engine control in cars

Weather forecasting systems

all of these

Question : How is the width of the data bus typically measured in a microcomputer system?

In kilobytes (KB)

In megahertz (MHz)

In bits

In address lines

none of these

Question : Which component of an ideal microcomputer is responsible for temporarily holding data and instructions during processing?

CPU

ALU

Memory

Output devices

motherboard

Question : To convert a Gray Code to its binary equivalent, which technique is commonly used?

Subtraction method

Addition method

Exclusive OR (XOR) operation

Division method

all of the above

Question : What is the relationship between the distance between parity bits and their error detection and correction capability in Hamming Code?

Closer parity bits provide higher error correction capability

Closer parity bits provide lower error correction capability

Distance between parity bits has no impact on error correction capability

The position of parity bits is irrelevant in Hamming Code

none of these

Question : In binary multiplication using the simple method, what is the first step after aligning the digits and preparing for multiplication?

Multiply the least significant bit (LSB) by the multiplier

Multiply the most significant bit (MSB) by the multiplier

Multiply the least significant bit (LSB) by the multiplicand

Multiply the most significant bit (MSB) by the multiplicand

all of the above

Question : If the sum of two positive binary numbers is 11010 and there is a carry-out from the MSB, what should be done to obtain the correct result?

Discard the carry

Add the carry to the least significant bit (LSB)

Add the carry to the most significant bit (MSB)

Subtract the carry from the MSB

remove the carry from the MSB

Question : Given a Boolean function F(A, B, C) = Σ(0, 1, 2, 3, 5), what is the expression in SOP form?

A'B' + AB' + AB + AC

A + B + C

AB' + C'

A'B'C'

ABC'

Question : What is the primary difference between ROM and RAM?

ROM is faster than RAM

ROM is volatile, while RAM is non-volatile

ROM is used for data storage, while RAM is used for program execution

ROM stores permanent data that cannot be changed, while RAM stores temporary data that can be read and written

none of these

Question : Which logic family uses both depletion and enhancement mode MOSFETs for its operation?

TTL

ECL

PMOS

CMOS

none of these

Question : Which type of register is primarily used to temporarily hold data during arithmetic and logical operations in a microprocessor?

Shift register

Parallel register

Accumulator register

Counter register

none of these

Question : In a PLA, what components are used to implement the combinational logic functions?

AND gates and OR gates

NAND gates and XOR gates

NOR gates and XNOR gates

NOT gates and multiplexers

none of these

Question : What is the simplified expression for the Boolean function F(A, B, C, D) = Σ(0, 1, 2, 4, 5, 6, 8, 9, 10, 12, 13, 14) using the K-map method?

A'B'C'D' + A'B'C'D + A'BC'D + AB'C'D + ABCD

A'B'C'D' + A'BC'D + AB'C'D + ABC'D + ABCD

A'B'C'D' + A'BC'D + ABC'D + ABCD

A'B'C'D' + A'BC'D' + A'BCD + ABCD

None of these

STET Computer Science : Asked Question-2023 (part-1)