Network Services

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.

Having low initial costs Not needing to manage physical servers Using a server for a short amount of time

What is the main advantage of using DHCP?

Leases IP addresses, removing the need to manually assign addresses

Let's say that you handle the IT systems administration for your company. There's a server inside of your organization that checks how often client machines access it. If a client machine hasn't accessed the server in three months, the server won't allow the client machine to access its resources anymore. What can you set to make sure that your client machines and the server times are in sync?

NTP

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

NTP

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 (Platform as a Service)

What does PXE Boot stand for?

Pre boot execution

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.

PuTTY WinRM

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

SFTP

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

SSH VPN

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

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

Use nslookup in the terminal to rule out DNS issues

What are the advantages of using Infrastructure as a Service (or IaaS) solutions? Check all that apply.

You can have the hardware you need without upgrading any actual hardware You're not responsible for managing hardware tasks Operating system updates are taken care of for you

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

Your local machine

You're the sole IT employee at your company, and you don't know how many users or computers are in your organization. Uh oh! What can you use to easily manage the users in your company?

not Physical Infrasturucture Services, Platform Services