1. Can you please explain the difference between Posts vs. Pages?

► Posts are timely vs. Pages are timeless.
► Posts are social vs. Pages are NOT.
► Posts can be categorized vs. Pages are hierarchical.
► Posts are included in RSS feed vs. Pages are not.
► Pages have custom template feature vs. Posts do not.

2. Why we used child theme in CMS?

Child themes are often used when you want to customize or tweak an existing WordPress theme without losing the ability to upgrade that theme.
Advantage is child theme is Safe Updates,Easy to Extend,Fallback Safe.

3. Explain child theme?

A WordPress child theme is a WordPress theme that inherits its functionality from its parent WordPress theme.

4. What are the types of hooks in wordpress?

► has_action()
► add_action()
► do_action()
► do_action_ref_array()
► did_action()
► remove_action()
► remove_all_actions()

5. What are hooks?

Hooks are provided by WordPress to allow your plugin to 'hook into' WordPress; that is, to call functions in your plugin at specific times, and thereby set your plugin in motion. There are two types of hooks used in WordPress are Actions and Filters.

6. Explain how to Change the Length of the Default WordPress Excerpt?

The default WordPress excerpt is 55 words long. By modified bit to your functions.php file you can change the length to as you required.

7. Explain is WordPress good for Google ranking and SEO?

Yes, That is one of the major selling points of using WordPress is that it includes excellent built in search engine optimization (SEO).In Other CMS you have to install SEO extention they either free or Commercial.In WordPress you can also extend SEO feature by using some Nice FREE SEO plugins likes All in one SEO,Yoast These are popular plugins that are known to help your rank on search engines such as Google and Bing.

8. Tell me how many tables a default WordPress will have?

A default wordpress will have 11 tables. They are-
► wp_commentmeta
► wp_comments
► wp_links
► wp_options
► wp_postmeta
► wp_posts
► wp_terms
► wp_term_relationships
► wp_term_taxonomy
► wp_usermeta
► wp_users

9. What is "the_time() function" in CMS?

To Display the time the post was published. (uses PHP date formatting as a parameter):