Useful tips for everyday
How do I limit aggregation in MongoDB? The $limit stage of the MongoDB aggregation pipeline is one of the easiest to understand: It simply limits…
What causes black spots on camera screen? When you change your camera’s lens, even if you are very careful, tiny particles of dirt or dust…
What is the output of cat file? Copy a text file You can use cat to make copies of text files in much the same…
How to calculate the z score of a distribution? If X is a random variable from a normal distribution with mean (μ) and standard deviation…
How to create activities in CRM? Add a new activity for a customer Open the record. You can use Quick Search on the navigation bar…
What is coin flipping explain briefly? Coin flipping, coin tossing, or head or tail is the practice of throwing a coin in the air and…
Why does Google Play store need telephone permission? It needs so many permissions because Play Services acts as a hub where other apps rely upon…
How do I enable NFS on Windows Server 2019? On select server roles page, expand File and Storage Services, expand File and iSCSI Services. Select…
Is Minecraft a AAA game? Time: Minecraft started out as being developed by only one person, Markus Persson, making it an indie game. Now it’s…
How does a vibrometer on a laser Doppler work? A vibrometer is generally a two beam laser interferometer that measures the frequency (or phase) difference…