Answer: A) Dn = log 2 (n+1) Explanation: A complete binary tree is a binary tree where all the levels have maximum number of nodes except possibly the last level.   The depth of complete binary tree of n nodes will be Dn=log 2 (n+1) where Dn is the height or depth of the tree and n is the number of nodes.

Answer: A) Arithmetic and Control unit Explanation:

Answer: C) Primary Memory Unit Explanation: Memory is the part of the computer that temporarily holds data and instructions before and after they are processed by the ALU.   Memory is also known as primary storage, primary memory, main storage, internal storage, and main memory.   Manufacturers often use the term RAM, which stands for random-access memory.​

Answer: A) CPU Explanation: Central Processing Unit (CPU) is the brain of any computer system.

Answer: C) Delete a program from the hard drive Explanation: The task manager enables you to monitor processes, applications and services currently running on your computer. You can use it to start and stop programs and processes. In addition, you can use the task manager to show informative stats about your PC’s performance and network.   Hence, to delete a program from the hard drive, you have to go to the control panel to uninstall an application properly.

Answer: D) All of the above Explanation:

Answer: C) 8 bit Explanation: Word length refers to the number of bits processed by a computer's CPU in one go. These days, typically 32 bits or 64 bits are used. Data bus size, instruction size, address size are usually multiples of the word size.

Answer: B) Knowledge information processing system Explanation: