How Do You Place Advertisement Banners in Your WordPress Website?

Problem Scenario
You have some rectangular icon image files that are advertisements. You want to post them for your advertiser in your WordPress website. What should you do?

Possible Solution #1 (if you can provide CSS code)
1. Log into WordPress
2. Appearance -> Themes
3. Find which theme is active and click "Customize".
4. Click "Additional CSS"
5. Insert the CSS code you want
6. Optional: if you need to upload an image, click "Site Identity", click "Upload files", then upload the file you want.

Possible Solution #2
Log into WordPress. Go to Settings -> Ad Inserter. There will be different tabs for different blocks.

What Typically Goes into /media in Linux?

Problem scenario
You want to know about the FHS in Linux. You see the /media directory (aka partition). What usually goes into /media?

Answer
CD-ROMs, DVD-ROMS, floppy disks etc. It is an optional directory that some Linuxes don't have. Page 212 of CompTIA Linux+ Complete Study Guide (by Roderick W. Smith published in 2010) by Sybex has more information

How Do You Troubleshoot “/usr/bin/java no such file or directory”?

Problem scenario
You run java commands but you get the error "/usr/bin/java no such file or directory." What should you do?

Possible Solution #1
Reinstall Java.

Possible Solution #2
You may have deleted a linked file. To find the destination file, run this: 

sudo find / -name java -type f

Based on the results, run a variation of this command draft (but substitute "/path/to/file/from/above/java" with the full path of the file found in the above command):

Then run this command (but substitute according to the results of the original "sudo find" command):

sudo ln -s /path/to/file/from/above/java /usr/bin/java

What is a Type 1 or Type 2 Company?

Problem scenario
You have heard about type 1 and type 2 companies. What are the differences?

Solution
We think that they are modes rather than types.

Gartner uses a word called "bimodal" to describe different patterns in the I.T. industry. Mode 1 refers to highly regulated environments whereas mode 2 refers to experimental, bleeding-edge environments. Thus a financial institution with private records would be an example of a mode 1 business. A video game designing company would be an example of a mode 2 business.

Mode 2 businesses may have a "bring your own device" policy whereas a mode 1 business may require development without access to the internet. In a mode 1 environment, software packages (such as .deb or .rpm packages or clones from GitHub) may require a security team to review and approve.

How Do You Use Partitions on a Disk and Have Complete Disk Encryption with Ubuntu?

Problem scenario
You want your entire hard disk to have encryption. You want to install Ubuntu Linux with partitions. What do you do?

Solution
Follow these directions, but make sure the second partition (with GRUB) uses 80 MB. To do this, mentally find this command "sgdisk --new=2:0:+2M $DEV" here:
https://help.ubuntu.com/community/Full_Disk_Encryption_Howto_2019

When you get to that command, use this command instead: sgdisk --new=2:0:+80M $DEV
We think the directions above would not work on many systems unless you allocated more space to the GRUB disk. The rest of the directions may be fine.

The LUKS unlock step (in the help.ubuntu link above) seems unnecessary or it may seem tedious if you have a long passphrase. However we recommend you try that step as it applies to the encrypted partitions you created.

How Do You Change Your WordPress Website’s Icon at The top of a Web Browser’s Tab?

Problem scenario
You are using WordPress and you want to change the icon that your website has (e.g., in a tab of a web browser). How do you change the website's icon when you use WordPress?

Solution
1. Log into WordPress
2. Appearance -> Themes
3. Find which theme is active and click "Customize".
4. Click "Site Identity"
5. Click "Select site icon"
6. Click "Upload files"
7. Upload the file you want
8. Then select it after it has been uploaded

What is the Difference between a Bottom-Up Approach and a Top-Down Approach in Computer Programming?

Problem scenario
You have heard of bottom-up programming and top-down programming. How are the two types different?

Solution
A bottom-up programming approach involves composing small sub-solutions into a bigger whole solution. There is an integration of components to make a whole with bottom-up programming. This method can be difficult to create the final, coherent product.

A top-down programming approach involves decomposing a big problem into smaller fragments. These fragments can be modules or chunks. The top-down programming approach involves working with something close to a final product from the beginning (not the modules themselves). This method is more of a "let's try to tackle everything" approach."

For more information, see the following:

https://www.geeksforgeeks.org/difference-between-bottom-up-model-and-top-down-model/

https://www.codingninjas.com/codestudio/library/top-down-vs-bottom-up-programming-whats-the-difference

https://dept-info.labri.fr/~strandh/Teaching/MTP/Common/Strandh-Tutorial/bottom-up-programming.html

https://dept-info.labri.fr/~strandh/Teaching/MTP/Common/Strandh-Tutorial/top-down-programming.html

https://en.wikipedia.org/wiki/Top-down_and_bottom-up_design#Programming