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  1. Yes, airlines allow laptops in checked luggage, but it's important to be aware of the risks involved. Spare laptop batteries aren't allowed, and the laptop has to be in a switched-off state and closed when packed in checked luggage. To minimize the risks, it's recommended that you pack your laptop in a carry-on instead. When packed in hand luggage, the laptop has to be charged and placed in an easily-accessible place.


  2. No, CPU coolers are not universal. They are designed to fit specific CPU sockets, so you must make sure to purchase a cooler that is compatible with your CPU socket.


  3. No, Java and JavaScript are not the same. Java is a programming language that runs on the Java Virtual Machine (JVM), while JavaScript is a scripting language that runs in web browsers. They share some similarities, such as both being object-oriented programming languages, but they are not the same.


  4. The song "Mary on a Cross" by Ghost is a reflection of the struggles faced by many individuals in our society, particularly those who experience mental health issues or feel isolated and alone. The lyrics of the song explore the suffering that Mary, a fictional character, experiences and her determination to keep going despite her circumstances. The chorus, “she just wanted something to live for, now she’s crucified on the cross” reflects the idea that Mary is trying to find meaning in her life despite the hardships she faces. Ultimately, the song is a message of hope that we can all find something worth living for, even if it’s hard.


  5. ##002 is a universal code for switching off all forms of redirection away from your phone.

    It is used to cancel all call forwarding and deactivate call forwarding when entered into your phone's settings.

    Additionally, this code is useful when roaming, as it is a good idea to use it before roaming.


  6. The A380 was a giant airliner that was designed to compete with Boeing's larger planes, but its size and luxurious features proved to be its undoing.

    One reason commonly given for its failure is the move away from the 'hub and spoke' model of flying to direct, point-to-point flights.

    Though uber comfortable, the A380 ultimately failed to fulfil the commercial vision of its designers and the rapid demise of the Airbus A380 is a complex tale of missed connections, a changing market and, ultimately, a staggering lack of demand.

    COVID hasn't helped either, with many airlines now struggling to survive.


  7. The most popular types of mobile apps are:

    1. Social media apps such as Facebook, Instagram, and Snapchat
    2. E-commerce apps like Amazon and eBay
    3. Gaming apps like PUBG, Candy Crush, and Fortnite
    4. Entertainment and streaming apps like Netflix and YouTube
    5. Food delivery and restaurant apps like Uber Eats and Grubhub
    6. Fitness and health apps like MyFitnessPal and Fitbit
    7. Navigation and map apps like Google Maps and Waze
    8. News and information apps like CNN and BBC News
    9. Utility apps like Dropbox and Google Drive
    10. Dating apps like Tinder and Bumble.

    These are just some examples, and the popularity of different app categories can vary depending on the region, user demographics, and current trends.


  8. is a London based company that provides the best shutter repair and installation services. They have been working in the industry for over 20 years, giving them a wealth of experience and knowledge. They are proud to offer their customers a top-notch service that is fast, reliable and cost-effective.


  9. The Recursion's answer is "the problem explains itself". This is a great tool when writing algorithms. Return from the list, where there are several examples of the words on their list. For example, the Fibonacci sequence is defined as: F(i) = F(i-1) + F(i-2)


  10. A stack is a data structure that follows the Last In First Out (LIFO) principle, meaning that the last item added to the stack is the first item to be removed. An array is a data structure that stores items in a specific order, allowing for random access to any item in the array.


  11. Linear Data Structure: A linear data structure is a collection of data elements, such as numbers or characters, arranged in a linear sequence. Examples of linear data structures include arrays, linked lists, stacks and queues, and they are characterized by their ability to quickly access elements in order, starting from the beginning or end.

    Non-Linear Data Structure: A non-linear data structure is a collection of data elements that are not arranged in any specific order, but are linked together in some way. Examples of non-linear data structures include trees, graphs, and heaps. These types of data structures allow for quick access of elements through searching and sorting algorithms, but also offer more flexibility since elements can be accessed out of order.


  12. A Binary Search Tree (BST) is a special type of binary tree that is used to store data in an organized fashion. It has the following properties:

    1. Each node contains a single key value.

    2. The key values of all the nodes in the left subtree are smaller than or equal to the key value of the parent node.

    3. The key values of all the nodes in the right subtree are larger than or equal to the key value of the parent node.

    4. Both the left and right subtrees must also be binary search trees.

    Binary Search Trees provide an efficient way of organizing and searching for data. They are used in many applications, such as databases and search engines.


    1. Engage with others – like, comment & share other people’s content, retweet, and join in conversations.
    2. Focus on quality content – make sure you post interesting, helpful, and inspiring content regularly.
    3. Use hashtags – use relevant hashtags to help people find your content more easily.
    4. Promote yourself – advertise your TechPlanet profile on other social networks, add a link to your profile in your email signature, and use the “share” button on posts to let more people know about your profile.
    5. Host giveaways – hosting giveaways can help you attract new followers.
    6. Invite your friends – invite your friends, family members, and colleagues to follow your profile.
    7. Follow influencers – take time to follow influencers in your field, engage with their content, and mention them in your posts.
    8. Join groups – join discussions in relevant groups and add value to the conversation.
    9. Post visuals – infographics, videos, and high-quality images are known to draw more attention and engagement than text-based posts.

  13. A quarter pound is equal to 114 grams.


  14. OOP (Object-Oriented Programming) is a programming paradigm that is based on the concept of objects. It treats data and functions as objects, which have properties (attributes) and behaviors (methods). OOP has several key concepts, including:

    1. Encapsulation: The idea of bundling data and functions that work on that data within a single unit, or object. This is meant to provide a secure way of storing and manipulating data.
    2. Abstraction: Hiding complex implementation details and exposing only relevant and simplified information to the user.
    3. Inheritance: Reusing existing objects and their behavior by creating new objects that are based on them.
    4. Polymorphism: The ability of an object to take on multiple forms. For example, an object of a certain class can be used where an object of its parent class is expected.

    OOP helps to organize code into reusable and modular components, making it easier to maintain, scale and expand software systems.


  15. Recursion is a technique in computer programming where a function calls itself repeatedly in order to solve a problem. The function needs to have a base case, which is a condition that stops the recursive calls and returns a result, and a recursive case, which makes the function call itself with a simplified version of the original problem. The idea is to break down a complex problem into smaller, similar sub-problems until it can be solved easily. Recursion is used in many algorithms and data structures, such as tree traversal, divide-and-conquer, and backtracking.