OneClickDrive Interview Questions and Answers

Distribute 100 coins with 10 heads and 90 tails between two people equally in spite of being blind.

• Flip all the coins and divide them equally between two people.

• Since there are 10 heads, there will be 90 tails. So, each person will get 50 coins with 5 heads and 45 tails.

• To ensure equal distribution, flip all the coins and divide them into two piles of 50 coins each. Then, each person can take one pile.

• Alternatively, flip all the coins and put them in a bag. Each person can th...read more

Weigh all bags together, subtract the weight of 8 bags with 10 gm balls from the total weight. The remaining weight is of the bag with 9 gm balls.

• Weigh all bags together using the weighing machine.

• Calculate the total weight of all balls in the 9 bags with 10 gm balls.

• Subtract the weight of 8 bags with 10 gm balls from the total weight.

• The remaining weight is of the bag with 9 gm balls.

Cloud computing is the delivery of computing services over the internet.

• VMs are virtual machines that emulate a complete hardware system, while containers are lightweight and share the host OS kernel.

• An interpreter translates code into machine language one line at a time, while a compiler translates the entire code into machine language at once.

Java is platform independent because of its bytecode and JVM.

• Java code is compiled into bytecode which can run on any platform with a JVM

• JVM acts as a virtual machine that interprets the bytecode and executes it

• This makes Java code platform independent and portable

• Java's write once, run anywhere (WORA) principle is based on this

Channels and goroutines are concurrency features in Go programming language.

• Goroutines are lightweight threads that allow concurrent execution of functions.

• Channels are used for communication and synchronization between goroutines.

• Channels can be used to pass data between goroutines.

• Channels can be buffered or unbuffered.

• Buffered channels have a fixed size and can hold a limited number of values.

• Unbuffered channels have no capacity and block until both the sender and receiver...read more