[wplug] Linux questions for a job submitted - HR catches the person

[Tom Rhodes]

On Thu, 31 Jul 2008 07:35:58 -0400
DK <wplug at curlynoodle.com> wrote:

> If he really did "want to check his answers", he should have posted them.
> 
> Are there any gurus in the group that can answer all 20 questions
> WITHOUT reference?
> 
> 1. Give an example of set of shell commands that will give you the
> number of files in a directory
> 2. How do you tell what process has a TCP port open in Linux
> 3. On a Red Hat Linux Variant how do you control whether a service
> starts when the system boots
> 4. How do you tell the amount of free disk space left on a volume
> 5. Give an example of a set of shell commands to tell how many times
> "bob" has logged on to the system this month
> 6. Give an example of a recursively copying a directory from one
> location to another.
> 7. How do you modify the IP and Net mask of a system running a Red Hat
> Variant of Linux
> 8. Give an example of a set of shell commands that will give you the
> number of "httpd" processes running on a Linux box.
> 9. On CentOS or Fedora based system using the package management
> application, how do you tell what package provided the file
> "libnss_ldap.so"
> 10. What is the difference between VTP client, server, and transparent
> 11. What is the maximum length of CAT6
> 12. How does one set up a layer two link to share VLANs
> 13. How does one implement redundant links at Layer 2
> 14. What is the difference between a hub, switch, and a router
> a. What are the security advantages of switch vs. hub
> 15. Show an example of using telnet to learn the headers of an http server.
> 16. In what OSI layer does PPP exist
> 17. What's the difference between TCP and UDP
> 18. Given a DNS server that has just started (with an empty cache) and
> host contacting this DNS server (using it's OS setting) to learn an
> address for google.com, list the steps the DNS server will take to
> learn it with IP addresses (each step will have multiple possible IP
> addresses – you need choose only one per step).
> 19. Why are layer 2 loops bad, and what protocol was designed to prevent them
> 20. Given a radius server at 10.0.0.2 and a shared key of 'abc123'
> show the IOS commands necessary to authenticate switch users against
> the radius server, while still allowing the use of local username /
> password pairs
> 
> Just curious,

I can get 16 of them, but I am unable to tell you the accuracy as
I didn't look my answers up.

-- 
Tom Rhodes