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TCMG 303 Exam 1 Review Questions And Answers With Verified Solutions
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TCMG 303 Exam 1 Review Questions And Answers With Verified Solutions
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TCMG 303 Exam 1 Review Questions And AnswersWith Verified Solutions
The "add user" command is used to remove a user's account from the operating system. ANS False. (The
adducer command creates a new user and group. It also creates the user's home directory and initialization files.)
The switch user (su) command defaults to the current user, therefore, is safe to use for executing program files.
ANS False. (The su command is very dangerous to use since it defaults to the root user if no user name is given.
When was the Unix operating system developed and who developed it? ANS In 1969 by AT&T (Bell Labs).
The vi editor has two modes: insert mode and command mode. ANS True.
The vi editor is one of the default file editors that comes with the Unix/Linux operating system. ANS True.
The switch user (su) command allows the current user to temporarily become another user in order to execute a
file. ANS True.
Why is Unix/Linux a popular operating system? ANS Provides multi user, multitasking, and multiprocessing.
Uses direct inter-processor communication of devices (hardware seen as files) making it very efficient and easy to
integrate. Provides portability, stability, reliability, and better security.
Unix/Linux servers can be used as... ANS Unix server can be used for a web server, database server, application
server, mail server, for script programming, automated cron jobs, application development, and any type of client-
server application using the internet.
What is the different between open source and closed source operating systems? ANS Open-source software is
developed by a community and can be modified easily and closed source software is developed by a private
company and is unmodifiable for most platforms.
A system administrator manages the computer systems in an organization. The responsibilities of a system
administrator and network administrator often overlap; however, the system administrator is more geared to the
computer hardware and less on the network. ANS True. (A system administrator is responsible for managing,
overseeing and maintaining a multiuser computing environment and includes performing tasks such as monitoring
, system resources, applying system security, configuration, managing, handling user accounts, performing data
backups, and setting up new hardware and software within the infrastructure.
Which companies use the Unix/Linux operating system? ANS Many companies use Unix servers such as Google,
Twitter, Wikipedia, Pizza Hut, Toyota, etc.
The sudo command allows a user to temporarily change to another user in the system. ANS False. The sudo
command allows a user to run a command with the privileges of another user, usually as the root.
When was the Linux operating system developed, who developed it, and why was it developed? ANS In 1991 by
Linus Torvalds as an alternative to expensive and proprietary versions of Unix.
The nano editor is another default editor delivered with the Unix/Linux operating system, but is limited in
functionality compared to other editors. ANS True.
The command to change a user password in the Unix/Linux operating system is $ passwd <user>. ANS True.
What is Azure? ANS Microsoft's cloud computing platform, which provides compute power, storage, and
services over the Internet using a pay-as-you-go pricing model. (Azure provides raw compute power and storage, as
well as services to help you explore new software paradigms such as intelligent bots and mixed reality.)
Azure Application Platform: ANS Web Apps, Mobile Apps, API Apps, Cloud Services, Service Fabric, Notification
Hubs, Functions.
When should you scale out your deployment? ANS When you need additional virtual machines to speed up
your application. (Scaling out means adding additional systems, such as virtual machines.)
Deploying an app can be done directly to what level of physical granularity? ANS Region. Azure organizes
infrastructure around regions, which include multiple data centers.
To user Azure data centers that are made available with power, cooling, and network capabilities independent from
other data centers in a region, choose a region that supports.... ANS Availability Zones. (Availability Zones are
data centers set up to be an isolation boundary from others in the region, with their own power, cooling, and
networking. if one zone in a region goes down, other Availability Zones in the region continue to work.
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