Q. What is use of underscore variable in REPL session ?

• None of the options
• To get the last command used.
• To get the last result.
• To store the result. 

Q. Which method of fs module is used to close a file ?

• None of the options.
• fs.closeFile(fd, callback)
• fs.closePath(fd, callback)
• fs.close(fd, callback)

Q. Which of the following is true about EventEmitter.emit property ?

• emit property is used to fire an event.
• None of the options.
• emit property is used to bind a function with the event.
• emit property is used to locate an event handler.

Q. Which method of fs module is used to truncate a file ?

• None of the options.
• fs.delete(fd, len, callback)
• fs.ftruncate(fd, len, callback)
• fs.remove(fd, len, callback)

Q. Which of the following is true about EventEmitter.on property ?

• None of the options.
• on property is used to locate an event handler.
• on property is used to fire event.
• on property is used to bind a function with the event.

Q. Which method of fs module is used to write a file?

• fs.write(path, flags[, mode], callback)
• fs.writeFile(path, flags[, mode], callback)
• None of the options
• fs.writePath(path, flags[, mode], callback)

Q. A stream fires end event when there is no more data to read. Is this correct ?

• True
• False

Q. Which of the following command will show all the modules installed locally ?

• $ node ls -g
• $ npm ls
• $ node ls
• $ npm ls -g

Q. REPL stands for

• Read Eval Print Loop
• Read Earn Point Learn
• Research Eval Program  Learn.
• Read Eval Point Loop

Q. Print the relative path of your script using the pre defined global object

• console.log('filename');
• console.log(/filename);
• console.log(__filename);
• console.log(__dirname); 9)

Q. Which of the following is true about console global object ?

• There are built-in methods to be used for printing informational, warning and error messages in console.
• All the options.
• console is used in asynchronous way  when the destination is a pipe.
• None of the options.
• console is used in synchronous way when destination is file or a terminal.

Q. How Node based servers are different from traditional web servers ?

• There is no much difference between the two.
• None of the options.
• Node based server process request much faster than traditional server
• Node based server uses a single threaded model and can services much larger number of requests than traditional server like Apache HTTP Server.

Q.  What is node.js ?

• Node.js is a java based framework.
• one of the options.
• Node.js is a JavaScript based Framework /platform build on Google Chrome's JavaScript V8 engine.
• Node.js is a web server.

Q. Which of the following is true about node.js ?

• Node.js is used to develop I/O intensive web applications like a video streaming sites, single page applications and other web application.
• Node.js is open source and is completely free to use.
• None of the options.
• Node.js is a JavaScript based Framework / platform built on Google Chrome JavaScript VB engine.
• All the options.

Q. Which of the following is true about file I/O in Node application ?(I) node implements file I/O using simple rappers around standard POSIX functions.(II) node file system (fs) module should be imported from file I/O operations.

• I 
• I & II
• None of the options
• II

Q. Which of the following is true about restful Web Services ? (I) Web Services based on REST architecture are known as our RESTful Web Services.(II) Web Services uses HTTP methods to implement the concept of REST architecture.

• I & II
• None of the options.
• I
• II

Q. Which of the following module is required for operating system specific operations?

• os module
• fs module
• Net module
• None of the options.

Q. Which of the following statement is valid to use a node module http in a node based application ?

• var http = require ("http");
• var http = import("http");
• Package http;
• Import http;

Q. Which of the following is true about __dirname global objects ? (i) The __dirname represents the name of the directory that the currently executing scripts resides in. (ii) The __dirname represents the resolved absolute path of code file.

• i & ii
• None of the options.
• ii
• i