prettier formatting

css/css-quiz.md

@@ -31,9 +31,15 @@ div a
 #### Q4. What element(s) do the following selectors match to?
 
 ```css
-1) .nav {...}
-2) nav {...}
-3) #nav {...}
+1) .nav {
+  ...;
+}
+2) nav {
+  ...;
+}
+3) #nav {
+  ...;
+}
 ```
 
 - [ ]
@@ -43,9 +49,11 @@ div a
   3. An element with a class of "nav"
   ```
 - [ ] 
-  ```markdown 
-  They all target the same nav element.
+
+- ```markdown
+      They all target the same nav element.
   ```
+
 - [x]
   ```markdown
   1. An element with an class of "nav"

it-operations/it-operations-quiz.md

@@ -14,13 +14,13 @@
   - Reset administrator password.
   - Set network name.
   - Set network password.
-  
+
 - [ ] 
 
   - Set network name.
   - Set network password.
   - Assign DNS servers.
-  
+
 - [ ]
 
   - Change administrator account name.

mongodb/mongodb-quiz.md

@@ -487,7 +487,7 @@
 
 - [ ] index
 - [ ] Name
-- [x] _id
+- [x] `_id`
 - [ ] row number
 
 [Reference](https://docs.mongodb.com/manual/reference/operator/aggregation/project/#definition)

mysql/mysql-quiz.md

@@ -408,7 +408,7 @@
 - [ ] insert into
 - [x] show create table
 
-Note that the question is about *getting* the data and not about the *duplicating* operation itself. And actually there is no need to run `SHOW CREATE TABLE` at all. [To duplicate the table](https://popsql.com/learn-sql/mysql/how-to-duplicate-a-table-in-mysql) structure you can `CREATE TABLE new_table LIKE original_table;`.
+Note that the question is about _getting_ the data and not about the _duplicating_ operation itself. And actually there is no need to run `SHOW CREATE TABLE` at all. [To duplicate the table](https://popsql.com/learn-sql/mysql/how-to-duplicate-a-table-in-mysql) structure you can `CREATE TABLE new_table LIKE original_table;`.
 
 #### Q46. you need to make your mysql system secure against attackers. What are you _not_ supposed to do?
 

node.js/node.js-quiz.md

@@ -7,7 +7,7 @@
 - [ ] the poll phase
 - [ ] the events queue
 
-**Explanation:** _From javascripttutorial: [reference](https://www.javascripttutorial.net/javascript-call-stack/#:~:text=If%20a%20function%20calls%20another,top%20of%20the%20call%20stack.)
+**Explanation:** From javascripttutorial: [reference](https://www.javascripttutorial.net/javascript-call-stack/#:~:text=If%20a%20function%20calls%20another,top%20of%20the%20call%20stack.)
 
 #### Q2. Which of the following is a core module in Node?
 
@@ -16,7 +16,7 @@
 - [ ] request
 - [ ] chalk
 
-**Explanation:** _From flaviocopes docs: [reference](https://flaviocopes.com/node-core-modules/)
+**Explanation:** From flaviocopes docs: [reference](https://flaviocopes.com/node-core-modules/)
 
 #### Q3. Which of the following Buffer class methods returns an uninitialized buffer?
 
@@ -25,7 +25,7 @@
 - [ ] from
 - [ ] alloc
 
-**Explanation:** _From official docs: [reference](https://nodejs.org/dist/latest-v13.x/docs/api/buffer.html#buffer_class_method_buffer_allocunsafe_size)
+**Explanation:** From official docs: [reference](https://nodejs.org/dist/latest-v13.x/docs/api/buffer.html#buffer_class_method_buffer_allocunsafe_size)
 
 #### Q4. Which of the following modules is NOT a built-in module in Node?
 
@@ -34,7 +34,7 @@
 - [ ] dgram
 - [ ] http2
 
-**Explanation:** _From flaviocopes docs: [reference](https://flaviocopes.com/node-core-modules/)
+**Explanation:** From flaviocopes docs: [reference](https://flaviocopes.com/node-core-modules/)
 
 #### Q5. Which fs module method can be used to read the content of a file without buffering it in memory?
 
@@ -53,7 +53,7 @@ To minimize memory costs, when possible prefer streaming via fs.createReadStream
 - [ ] resolve4
 - [ ] reverse
 
-**Explanation:** _From official docs: [reference](https://nodejs.org/api/dns.html#dns_dns_lookup_hostname_options_callback)
+**Explanation:** From official docs: [reference](https://nodejs.org/api/dns.html#dns_dns_lookup_hostname_options_callback)
 
 #### Q7. How do you check that a value is a date object in Node?
 
@@ -62,7 +62,7 @@ To minimize memory costs, when possible prefer streaming via fs.createReadStream
 - [ ] console.isDate(value)
 - [ ] util.date(value)
 
-**Explanation:** _From official docs: [reference](https://nodejs.org/api/util.html#util_util_types_isdate_value)
+**Explanation:** From official docs: [reference](https://nodejs.org/api/util.html#util_util_types_isdate_value)
 
 #### Q8. Can you create an https web server with Node.js?
 
@@ -71,7 +71,7 @@ To minimize memory costs, when possible prefer streaming via fs.createReadStream
 - [ ] yes, through the path module
 - [ ] yes, with the http module
 
-**Explanation:** _From official docs: [reference](https://nodejs.dev/learn/making-http-requests-with-nodejs)
+**Explanation:** From official docs: [reference](https://nodejs.dev/learn/making-http-requests-with-nodejs)
 
 #### Q9. What is the Api that is designed to insulate Addons from changes in the underlying JavaScript engine?
 
@@ -80,7 +80,7 @@ To minimize memory costs, when possible prefer streaming via fs.createReadStream
 - [x] N-API
 - [ ] X-API
 
-**Explanation:** _From official docs: [reference](https://nodejs.org/api/n-api.html#n_api_node_api)
+**Explanation:** From official docs: [reference](https://nodejs.org/api/n-api.html#n_api_node_api)
 
 #### Q10. Which CLI option can you use to debug a node script in Chrome DevTools?
 
@@ -89,7 +89,7 @@ To minimize memory costs, when possible prefer streaming via fs.createReadStream
 - [ ] --chrome
 - [ ] --debug
 
-**Explanation:** _From official docs: [reference](https://nodejs.org/en/docs/guides/debugging-getting-started/)
+**Explanation:** From official docs: [reference](https://nodejs.org/en/docs/guides/debugging-getting-started/)
 
 #### Q11. How can you count the number of logical CPUs on the machine that is running Node?
 
@@ -98,7 +98,7 @@ To minimize memory costs, when possible prefer streaming via fs.createReadStream
 - [ ] node -p "process.os.cpus"
 - [x] node -p "os.cpus().length"
 
-**Explanation:** _From coderrocketfuel docs: [reference](https://coderrocketfuel.com/article/get-the-number-of-system-cpu-cores-using-node-js)
+**Explanation:** From coderrocketfuel docs: [reference](https://coderrocketfuel.com/article/get-the-number-of-system-cpu-cores-using-node-js)
 
 #### Q12. Which of the following is a method on the console object?
 
@@ -107,7 +107,7 @@ To minimize memory costs, when possible prefer streaming via fs.createReadStream
 - [x] time
 - [ ] print
 
-**Explanation:** _From official docs: [reference](https://nodejs.org/api/console.html)
+**Explanation:** From official docs: [reference](https://nodejs.org/api/console.html)
 
 #### Q13. Which object is used to manage the cache of required modules?
 
@@ -116,7 +116,7 @@ To minimize memory costs, when possible prefer streaming via fs.createReadStream
 - [ ] process.cache
 - [x] require.cache
 
-**Explanation:** _From official docs: [reference](https://nodejs.org/api/modules.html#modules_require_cache)
+**Explanation:** From official docs: [reference](https://nodejs.org/api/modules.html#modules_require_cache)
 
 #### Q14. What is the command to silence all process warnings?
 
@@ -125,7 +125,7 @@ To minimize memory costs, when possible prefer streaming via fs.createReadStream
 - [ ] node -trace-warnings
 - [ ] node index.js --no-warnings
 
-**Explanation:** _From official docs: [reference](https://nodejs.org/api/cli.html#cli_no_warnings)
+**Explanation:** From official docs: [reference](https://nodejs.org/api/cli.html#cli_no_warnings)
 
 #### Q15. How can you use the promise API with a callback-based function such as child_process.exec?
 
@@ -134,7 +134,7 @@ To minimize memory costs, when possible prefer streaming via fs.createReadStream
 - [x] util.promisify(child_process.exec)
 - [ ] new Promise(child_process.exec)
 
-**Explanation:** _From official docs: [reference](https://nodejs.org/api/child_process.html)
+**Explanation:** From official docs: [reference](https://nodejs.org/api/child_process.html)
 
 #### Q16. Which of the following is NOT a Node repl command?
 
@@ -143,7 +143,7 @@ To minimize memory costs, when possible prefer streaming via fs.createReadStream
 - [ ] .editor
 - [ ] .save
 
-**Explanation:** _From official docs: [reference](https://nodejs.org/api/repl.html#repl_commands_and_special_keys)
+**Explanation:** From official docs: [reference](https://nodejs.org/api/repl.html#repl_commands_and_special_keys)
 
 #### Q17. Which statement is true when you run the code shown below?
 
@@ -154,7 +154,7 @@ To minimize memory costs, when possible prefer streaming via fs.createReadStream
 - [x] The forked process will have its own VM instance.
 - [ ] The forked process shares the same VM thread with the parent process.
 
-**Explanation:** _From official docs: [reference](https://nodejs.org/api/child_process.html#child_process_child_process_fork_modulepath_args_options)
+**Explanation:** From official docs: [reference](https://nodejs.org/api/child_process.html#child_process_child_process_fork_modulepath_args_options)
 
 #### Q18. If EventEmitter is in scope, which of the following lines of code will have an event emitter emitting a change event?