Useful tips for everyday
How do you calculate working days excluding weekends and holidays? Excel NETWORKDAYS function The NETWORKDAYS function in Excel returns the number of workdays between two…
How do I start mongos? Start a mongos using either a configuration file or a command line parameter to specify the config servers. If using…
How big is too big MySQL database? You can’t have more than 1000 columns. Your records can’t be bigger than 8k each. These limits change…
How to express time in UI and UX? If you provide an indication that a process will take 10 minutes, ensure that the indication does…
How do you write a simple character driver? chmod a+r+w /dev/mydev this application is writing hello to device and reading same from device. save this…
Can you stack switches on top of each other? Generally, there are two ways to stack switches together: through stackwise port or via stacking/uplink port.…
What is retention period in AWS RDS? Amazon RDS retains backups of a DB Instance for a limited, user-specified period of time called the retention…
Where are podcasts stored on Iphone? You can go to Settings->General->Storage & iCloud Usage->Manage Storage->Podcast there will show all the podcasts you have downloaded. How…
Does metadata include HTML? Metadata: the element. Metadata is data that describes data, and HTML has an “official” way of adding metadata to a document…
How the spiral model relates to prototyping? The spiral model enables gradual releases and refinement of a product through each phase of the spiral as…