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WorksheetsTechJar Round 1
Total questions: 45
Worksheet time: 15mins
In machine learning, what does the term “overfitting” signify?
The model trains too quickly without accuracy
The model memorizes training data but performs poorly on new data
The model ignores anomalies in the dataset
The model is unable to recognize complex patterns
Which database type is characterized by its use of collections instead of tables?
Relational Database
Hierarchical Database
NoSQL Database
Object-Oriented Database
The Turing Test, introduced by Alan Turing, is designed to evaluate what?
Computational efficiency
Artificial intelligence’s ability to mimic human behavior
Security strength of cryptographic systems
Accuracy of numerical algorithms
In computer networking, the Domain Name System (DNS) primarily performs which function?
Encrypts network traffic
Maps domain names to IP addresses
Provides firewall protection
Allocates bandwidth among devices
In cybersecurity, what does the term “zero-day vulnerability” refer to?
A virus that deletes files immediately upon infection
A flaw exploited before the vendor is aware of it
An attack that targets outdated hardware
A denial-of-service attack on launch day
The CAP Theorem in distributed databases highlights the trade-off among which three properties?
Capacity, Accuracy, Performance
Consistency, Availability, Partition tolerance
Connectivity, Authentication, Privacy
Caching, Accessibility, Protocols
Which algorithm is primarily used for finding the shortest path in a graph?
Quick Sort
Dijkstra’s Algorithms
BFS only
Merge Sort
The binary number 1010 is equal to what in decimal?
8
9
10
11
Which company developed the Java programming language?
Microsoft
Sun Microsystems
IBM
Apple
In cybersecurity, a DDoS attack primarily targets:
Database corruption
Network bandwidth saturation
Hardware failure
Password cracking
The programming language “Python” is named after:
A type of snake
A British comedy group
A Greek philosophical text on logic
The initials of its creator’s PhD thesis
What does “BIOS” stand for in computing?
Basic Input Output System
Binary Integrated Operating Software
Basic Internal Operating Setup
Built-in Optimization System
What does “sharding” mean in the context of databases?
Partitioning a database horizontally across multiple machines
Creating replicas for redundancy
Encrypting data at rest
Using memory caches for performance
The “spectre” vulnerability exploits flaws in:
Virtualization
Out-of-order execution and speculative execution
Buffer overflow
Encryption padding
In Big-O notation, the complexity of binary search is:
O(n)
O(log n)
O(n log n)
O(1)
What is the primary advantage of using SSDs over HDDs?
Higher storage capacity
Lower power consumption and faster access time
Better data encryption
Longer lifespan
In networking, what is the function of a “firewall”?
Increase Wi-Fi range
Prevent unauthorized access
Store encrypted passwords
Improve download speed
The main benefit of containerization tools like Docker is:
Virtualization at the hardware level
Lightweight and portable application environments
Enhanced graphics performance
Better Wi-Fi connectivity
In databases, what does ACID stand for?
Access, Control, Integrity, Durability
Atomicity, Consistency, Isolation, Durability
Analysis, Coding, Integration, Deployment
Authentication, Control, Indexing, Deletion
GitHub is primarily used for:
Cloud hosting
Source code management and collaboration
Operating system development
Data backup services
Which data structure uses FIFO (First In, First Out)?
Stack
Queue
Linked List
Tree
The main purpose of a “load balancer” in cloud architecture is:
Encrypt traffic
Distribute incoming requests across multiple servers
Backup server data
Test network latency
In machine learning, supervised learning requires:
Unlabeled data
Reinforcement feedback
Labeled training data
Randomized datasets
In blockchain, a “hash function” is used for:
Storing large datasets
Compressing data
Ensuring data integrity and immutability
Encrypting private keys
The primary function of a Content Delivery Network (CDN) is:
Data compression
Caching and delivering content closer to users
Malware protection
Database replication
What does the “Ctrl + Z” command typically do in a terminal (Linux/Unix)?
Kill the process
Suspend the process
Restart the process
Show process details
In AI, reinforcement learning relies on:
Pre-labeled datasets
Continuous feedback through rewards or penalties
Manual feature engineering
Randomized training samples
What is the function of RAID in computer storage?
Increase processing speed
Improve data storage reliability and performance
Encrypt stored data
Expand RAM capacity
The programming language “COBOL” was designed mainly for:
Scientific computing
Business applications
AI research
Operating system design
The concept of “virtual memory” allows:
A process to use disk space as RAM extension
Multiple users to log in simultaneously
Faster access to cloud services
A program to store data in cache only
The term “metaverse” is most closely associated with which technology?
Augmented and Virtual Reality
Cloud storage
Blockchain security
Machine learning algorithms
In databases, SQL injection is a type of:
Encryption algorithm
Denial of Service attack
Input validation vulnerability
Malware infection
Git is best described as:
A programming language
A version control system
A database engine
A project management tool
In machine learning, the confusion matrix is used for:
Optimizing learning rate
Evaluating classification performance
Training neural networks
Reducing overfitting
In web development, “cookies” are primarily used for:
Encrypting websites
Storing user session data
Hosting images
Speeding up CPU performance
In cyber security, phishing attacks primarily aim to:
Install malware
Steal sensitive user credentials
Overload a server
Encrypt user files
The programming language “R” is most widely used for:
Web design
Data analysis and statistics
Operating system kernels
Robotics programming
The “Moore’s Law” states that:
Storage doubles every 18 months
Internet speed doubles every 12 months
Transistor count on chips doubles every 18–24 months
Cost of computing doubles every 2 years
The Linux command chmod 777 file.txt gives:
Read-only access to all users
Full read, write, execute permissions to everyone
Execute-only permissions to owner
Denies access to all
In computer graphics, anti-aliasing is used to:
Reduce file size
Smooth jagged edges in images
Compress textures
Enhance color depth
The Linux command ls -l is used to:
Display disk usage
List files with detailed information
Show running processes
Change directory
The abbreviation “SEO” in web technology stands for:
System Engine Optimization
Search Engine Optimization
Software Execution Operation
Standard Enterprise Output
In networking, TCP ensures:
Encryption
Reliability and error-checking in data transmission
Low latency
Broadcasting packets
The computer virus “ILOVEYOU” was spread via:
USB drives
Email attachments
Pirated software
Network worms
Which network topology connects each device to a central hub or switch?
Star
Ring
Mesh
Bus
