1)    Difference between On-page and Off-page optimization

A) On Page Optimization is the activity that is done on the page for search engine ranking like using alt tags, keywords is meta tag, tool tip and proximity, keyword-density, proper usage of keywords in heading tags. 

Off Page Optimization is the activity that is done on other sites for our site to increase search engine ranking. Off Page Optimization activities include directory submission, article submission, forum discussion, blog posting, press release, blog commenting, white paper submission and along with this social bookmarking (in digg, delicious, reddit, stumbleupon) and social media promotion (in facebook, twitter, linkedin). Off page optimization creates strong back links for our site which not only helps for search engine ranking but also for drive traffic from sites where we have done all these submissions

2)    what is backlinks and how many types of backlinks are they?

A) An incoming hyperlink from one web page to another website.

The Different Types of Back Links

Inbound back links– are links that point directly back to any of your web properties, that in turn , point back to your website. This allows search engines to crawl your website as major search engines discover new sites and content via anchor links on established web properties, websites, and web services.
One way backlinks– they pass page rank and link juice to web properties. These types of anchor links are used for directing search engine crawlers “one way” to follow these  links back to your website, blog, social profile, media release or press release, videos, web 2.0 properties, do follow social bookmarking profiles, local directories, established web directories, and / or any other web property.
Reciprocal backlinks– this type of backlinking is the act of basically exchanging links between different websites and web properties. The phrase, “I’ll scratch your back, if you scratch mine” theory should help with explaining what a reciprocal back link is. This method is not as popular with search engines as it used to be back in the day because they see this as artificially boosting the page authority.
Do Follow Backlinks– this is the act of building links to your website or web properties by using other websites, web properties, and web services that allow the passing of pagerank and link juice from their website to your website or other web property. This type of link building is known to be the most powerful way of garnering other web properties exposure with search engines for your own website or web properties benefit.
No Follow Backlinks– these are basically the opposite definition of what a DoFollow back link is. This type of link building is not as powerful as DoFollow contextual backlinks, but are still considered important as part of a well rounded and successful link building campaign
Authority Back Links– these are generated from high traffic and high PR established websites and web properties. Authority backlinks are typically on websites that have a high page rank of 6 or above, can be on an educational or government websites (.edu back links & .gov backlinks), or on any other web property that can be perceived as an authority website or web property that has an established presence with a healthy back link portfolio and established website history.

3)    Different b/w one-way ,two way, three way?

A) One way backlinks– they pass page rank and link juice to web properties. These types of anchor links are used for directing search engine crawlers “one way” to follow these  links back to your website, blog, social profile, media release or press release, videos, web 2.0 properties, do follow social bookmarking profiles, local directories, established web directories, and / or any other web property.
Two way (or) Reciprocal backlinks– this type of backlinking is the act of basically exchanging links between different websites and web properties. The phrase, “I’ll scratch your back, if you scratch mine” theory should help with explaining what a reciprocal back link is. This method is not as popular with search engines as it used to be back in the day because they see this as artificially boosting the page authority.
Three way backlinks - It is nothing but a traffic builder or search engine optimization. In a three-way link exchange, three different domains must be involved..A, B, C are three websites. it is considered negative. its a triangle A linking to B, B linking to C,and C linking to A.

4)    Why do not use two way back link method ?

A) A reciprocal link is a mutual link between two objects, commonly between two websites, to ensure mutual traffic. For example, Alice and Bob have websites. If Bob's website links to Alice's website, and Alice's website links to Bob's website, the websites are reciprocally linked. Website owners often submit their sites to reciprocal link exchange directories in order to achieve higher rankings in the search engines . Reciprocal linking between websites is no longer an important part of the search engine optimization process.

5)    What is directory submissions  & why do directory submissions?

Website directories are lists of links to websites which are sorted into categories. Website owners can submit their site to many of these directories. Some directories accept payment for listing in their directory, while others are free.

Blog directories make your blog visible beyond the realms of your own blogging circle. Here are some of the benefits of joining blog directories that make the process do lucre.

1)      Get quality and safe backlinks:

2)      Getting massive exposure

    3)      Chances of getting review requests or paid post opportunities:

    4)      Increase in blog’s overall earnings: