System Administration and IT
Infrastructure Services Solved Correctly
software or a machine that provides services to other software or machines ✔✔Server
A program that provides DNS, DHCP. TFTP, and PXE services in a
...
System Administration and IT
Infrastructure Services Solved Correctly
software or a machine that provides services to other software or machines ✔✔Server
A program that provides DNS, DHCP. TFTP, and PXE services in a simple package ✔✔dnsmasq
Clients that want to access an FTP server have to install an ✔✔FTP client
Command to check that an NTP daemon is running ✔✔service ntp status
These programs run as Background Processes. Also known as ________. This means that the
program doesn't need to interact with a user through the graphical interface or the command line
interface to provide the necessary service. ✔✔Daemons
Services
Networking has also been branched off into its own Cloud Service called? ✔✔Networking as a
Service or NaaS
The field in IT that's responsible for maintaining reliable computer systems in a multi-user
environment ✔✔System Administration
Services that employees use that allow them to do their daily job functions ✔✔Software Sevices
Keeps the clock synchronized on machines connected to a network ✔✔Network Time Protocol
NTP
In Windows Power-Shell, There is a Command that is used to record a group of commands as
they're being issued along their output. ✔✔Start-Transcript
It's a legacy way to transfer files from one computer to another over the Internet ✔✔FTP
True or False: Services are usually configured to start when the machine boots, so that if there's a
power outage or a similar event that causes the machine to reboot, you won't need a system
administrator to manually start the service ✔✔True
Maps human-understandable names to IP addresses ✔✔Domain Name System (DNS)
True or False: After applying your fix, retrace that same steps that took you to the bad experience.
If your fix worked, the expected experience should now take place. ✔✔True
Gives us the Name Server of a host or domain name ✔✔nslookup
A service running on _________________ will have better performance than a service running in
a _______________. ✔✔Dedicated Hardware / Virtualized Environment.
An ftp client program that allows us to connect to an ftp server ✔✔Iftp
For even bigger services, when you have lots of servers providing the service, you may want to
have _______________. You will use a small group of servers to detect any potential issues in the
larger changes you want to push out in the system. ✔✔canaries
What are the four main stages of the hardware lifecycle? ✔✔Procurement
Deployment
Maintenance
Retirement
Regular operating systems that are optimized for server functionality ✔✔Server operating systems
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