WEEK 2 INFRASTRUCTURE

Let's say that you're the sole IT person in your company, and your boss wants a way to block certain websites from employees. What can you set up to help with this request?

A proxy server can be used to regulate access to certain websites.

Which of the benefits below make using an Infrastructure as a Service (IaaS) provider a better option than purchasing dedicated physical hardware? Check all that apply.

IaaS providers have lower startup costs than buying dedicated hardware and are generally easier to manage. IaaS providers have lower startup costs than buying dedicated hardware and are generally easier to manage. Using a server for a short time

What is the main advantage of using DHCP?

If you enable DHCP, your computers will be leased an IP address from a DHCP server. They'll automatically get IP addresses and you don't have to worry about manually setting addresses. It's automatic!

You want to access the CLI (command line interface) of a Linux terminal at work from your Apple laptop at home. You have the proper client installed on your laptop. What needs to be installed on the remote Linux machine?

In Linux, the most popular remote access tool is OpenSSH. To SSH into another machine, you need to install an SSH client on the machine you're connecting from, then install an SSH server on the machine you're connecting to.

Which of the following is not a network file transfer protocol?

NTP ?

You want to access the CLI (command line interface) of a Linux terminal at work from your Apple laptop at home. You have the proper client installed on your laptop. What needs to be installed on the remote Linux machine?

Open SSH

An app developer is shopping for a cloud service that will allow him to build code, store information in a database and serve his application from a single place. What type of cloud service is he looking for?

PaAs

A sysadmin is looking to use Pre Booth Execution over a network by keeping operating system installation files on a server. Which type of server is this most likely to be?

TFTP server

A sysadmin is looking to use Pre Booth Execution over a network by keeping operating system installation files on a server. Which type of server is this most likely to be?

TFTP stands for trivial FTP. It's a simpler way to transfer files than using FTP and is often used to host installation files.

A network service developer is looking to install the most secure file transfer protocol. Which protocol would best fit this criteria?

SFTP

If you wanted to securely transfer files from your local machine to a web server, what file transfer protocol could you use?

SFTP

A network service developer is looking to install the most secure file transfer protocol. Which protocol would best fit this criteria?

SFTP stands for Secure File Transfer Protocol. It is more secure than the unsecured FTP or TFTP.

Which of the following options allow you to access a computer remotely? Check all that apply.

SSH & VPN

Which are advantages of using a server operating system?

Server operating systems are usually more secure and can come with additional services, such as security, already built in, so you don't have to set up these services separately. More network connection more RAM and storage capacity

Let's say that you're the sole IT person at your company. The company is a very small startup, and they need to set up a few non-critical services and have a single physical server in place. What's the best approach to fully utilize this server?

Set up virtualized servers on the server. Virtualized servers allow services to be run on a single machine in different virtual instances.

Google's GSuite is an example of which Cloud service?

Software as a Service (SaaS) is a neat Cloud product that gives users the ability to edit word documents, process spreadsheets, make presentations, and more, all from a web browser. This simplifies things for you, with less to install and manage.

A website is inaccesible via its URL. You've pinged the site and see no problem there. What is the next troubleshooting step?

We can rule out if DNS is an issue by verifying that the hostname points to a nameserver. If we copy the IP address of the results and paste it into the web browser, it should resolve the website name if the DNS is working

In Linux, the most popular remote access tool is OpenSSH. Which software performs the same remote command line (CLI) access from a Windows machine? Check all that apply.

WinRM & Putty

What are some reasons DNS is necessary? Check all that apply.

Without DNS, we'd have to type in full IP addresses to access the websites we want to use. DNS is what maps human understandable names to IP addresses. If you don't set it up correctly, no one will be able to access websites by their names. ?

When you make a DNS query, where does your computer first check to find an IP address to name mapping?

Your local machine