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 1. Research several Linux distributions (CentOS, Debian, Fedora, Gentoo, Mandriva, OpenSUSE, RedHat, Slackware, TurboLinux, Ubuntu, and so on) and recommend a distribution for each of the following applications. Explain your choice.
   a. A single user working in a home office 
+    
+    For a single user working in a home office, I prefer Ubuntu or Fedora. Both
+    distributions offer a version that is compatible for use in a desktop
+    environment. They ship with common software that a user may want to work in
+    a home office such as LibreOffice. They also make it easy to install
+    proprietary software that may be needed for working with or viewing
+    different types of multimedia. Both of these distrubutions have different
+    support cycles for their software and typically run on newer versions of the
+    Linux kernel. This means that the driver support is usually more up to date
+    for newer devices and hardware and newer versions of software packages are
+    usually available.
+
+    Fedora is a RHEL based distribution and Ubuntu is a Debian based
+    distribution. People who are more familiar with `yum` or `Gnome` will likely prefer 
+    Fedora. People who are more familiar with `apt` or `Unity` will likely
+    prefer Ubuntu.
+
+    I believe that Ubuntu is more popular than Fedora, so you may find more
+    community forums and helpful posts related to Ubuntu if you need help.
+    My current personal preference is Fedora.
+
   b. A university computer science lab
+
+    In a university computer science lab, I think there is less of a need for a
+    graphical user interface so OpenBSD might be a good choice. OpenBSD is known
+    as a security focused BSD. This would be very useful in a university lab
+    setting where you will multiple users working within the lab.
+
   c. A corporate web server
+
+    A corporation may prefer to use either RedHat Enterprise Linux (RHEL) or
+    CentOS. RHEL is an open source operating system but does need to be
+    purchased. The purchase includes support that may be very helpful in a
+    corporate environment. Depending on the corporation, they may not need the
+    support that a RHEL purchase provides because they have in house engineers
+    that can support the web server. In that case, they may choose to use
+    CentOS. CentOS is the Community Enterprise OS, which is a binary compatible
+    distribution of RHEL without the cost or support.
+
+    Both distributation offer longer term support and typically ship with more
+    stable versions of the linux kernel. This stability is important for key
+    pieces of infrastructure, such as a corporate web server. These OS also ship
+    with default yum repos that provide regular security updates.
+
+    RHEL based distros ship with the Security Enhanced (SELinux) Linux modules
+    that provides mechanisms for better management of access controls. To ensure
+    that different users of the system have the appropriate access controls to
+    be able to manage the server.
+
 2. What is the current status of Linux kernel development? What are the hot issues? Who are some of the key players? How is the project managed?
+
+  The current latest stable Linux kernel is [5.2.13](https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.13).
+  The current mainline is [5.3-rc7](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/rawdiff/?id=v5.3-rc7&id2=v5.2)
+  The current list of maintained kernel versions are:
+    * [4.19.71](https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.71)
+    * [4.14.142](https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.142)
+    * [4.9.191](https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.191)
+    * [4.4.191](https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.191)
+    * [3.16.73](https://cdn.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.73)
+
+  The current Linux kernel merge window is closed. [5.3-rc7](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/rawdiff/?id=v5.3-rc7&id2=v5.2)
+  is being stabilized so that a new stable version can be released. Once `5.3`
+  is stabilized and released, the next merge window will open. Once the merge
+  window is open, new feature can be added.
+
+  [The Big Picture](https://www.kernel.org/doc/html/v5.2/process/2.Process.html#the-big-picture) describes the following process for Kernel development.
+
+  1. Stable version is released.
+  2. Merge window for next release opens. (approximate for 2 weeks)
+  3. New features, patches are merged. The items that are chosen to be merged
+     into mainline are vetted by several subsystem maintainers. The patches
+     accepted by maintainers are then reviewed and merged into mainline by Linus
+     Torvalds.
+  4. RC-1 is cut and the merge window closes. Only changes that help stabilize
+     the release candidate are merged during this time.
+  5. Approximately, 7-9 release candidates are released before a new stable
+     release is cut and released. Go to step 1.
+
+  One of the most recent pieces of news about Linux kernel development is about [memory optimization in the slab memory controller](https://lkml.org/lkml/2019/9/5/1132).
+  This proposed change has been tested in production at Facebook with memory savings of:
+
+    1. web frontend, 650-700 Mb, ~42% of slab memory
+    2. database cache, 750-800 Mb, ~35% of slab memory
+    3. dns server, 700 Mb, ~36% of slab memory
+
+  The Linux kernel is supported by volunteers, RedHat, Packet, Fastly, Google,
+  The Linux Foundation and many other organizations. These organizations donate
+  money, engineers, patches, drivers to help support Linux kernel development.
+      
 3. Draw a dependency graph that shows which daemons must be started before other daemons on your Linux system.
 
+  Since 2015, most Linux distributations have moved away from `UNIX System V` to
+  `systemd`.
+
+  [systemd](https://en.wikipedia.org/wiki/Systemd) provides:
+
+  * A system and service manager.
+  * A software platform.
+  * A bridge between applications and the kernel via interfaces that expose Kernal API's.
+
+  * systemd
+    * initd 
+      * journald
+      * logind
+      * networkd
+      * tmpfiles
+      * timedated
+      * udevd
+      * libudev
+      * systemd-boot
+
+
 ## Lab 2
 
 Linux installation can happen smoothly and automatically, but sometimes there are problems to be solved.