Posted on December 28, 2016
Android is a Linux-based operating system designed primarily for touchscreen mobile devices such as smartphones and tablet computers. Initially developed by Android Inc., which Google backed financially and later bought in. Android was unveiled in 2007 along with the founding of the Open Handset Alliance: a consortium of hardware, software, and telecommunication companies devoted to […]
Posted on November 14, 2016
1) What is constructor? Constructor is just like a method that is used to initialize the state of an object. It is invoked at the time of object creation. eg: class Student4{ int id; String name; Student4(int i,String n){ id = i; name = n; } void display(){System.out.println(id+” “+name);} public static void main(String args[]){ Student4 s1 = new Student4(111,”Karan”); Student4 s2 = new Student4(222,”Aryan”); s1.display(); s2.display(); } } Output: 111 Karan 222 Aryan 2) What is Inheritance? Inheritance […]
Posted on November 5, 2016
What are the advantages of Distributed Processing? Security/Encapsulation Distributed database Faster Problem solving Security through redundancy Collaborative Processing What are the criteria necessary for an effective and efficient network? Performance: It can be measured in many ways, including transmit time and response time. Reliability: It is measured by frequency of failure, the time it takes […]
Posted on May 10, 2016
uname -a Check the version of kernel running free [option(s)] The command free displays information about RAM and swap space usage, showing the total and the used amount in both categories. top [options(s)] top provides a quick overview of the currently running processes. Press H to access a page that briefly explains the main options to customize the program. diff [option(s)] file1 file2 The diff command compares […]
Posted on May 2, 2016
Frequently asked technical questions? 1. Explain the booting process in linux The system BIOS checks the system and launches the first stage boot loader on the MBR of the primary hard disk. The Frist stage boot loader loads itself into memory and launches the second stage boot loader from the /boot/partition. The second stage boot loader loads the […]
