Networked Hosts and Their Services

Question 1

What is a Web Server

Answer 1

A Web Server delivers web-based content

Web Servers can be public or private

Public: Pluralsight.com
Private: intranet.globomatics.org

Example Technologies
- Apache
- IIS

Question 2

What is a File Server?

Answer 2

A file server is a central location to store documents and files

Question 3

What is a Print Server?

Answer 3

A print Server Manages and Distributes Print Jobs

Allows users to print across Multiple Printers in the enterprise

Gives Administrators visibility and management capabilities

Question 4

What is a Mail Server?

Answer 4

A Mail Server Handles e-mail services in the organization

Microsoft Exchange Server is popular example

Question 5

Syslog Server

Answer 5

A syslog Server consolidates logs from multiple sources in a single location

For example:
Routers
Firewalls
Web Servers

Question 6

Authorization, Authentication and Accounting, (AAA)

Answer 6

Handles user Authentication and permissions

Authentication
Are you who you say your are

Authorization
Are you allowed to access this specific resource

Accounting
Auditing

Active Directory is a popular example

Question 7

What is DNS Server?

Answer 7

Translate fully qualified domain names into IP Addresses

Pluralsight.com > 54.202.43.122

Question 8

What is a DHCP Server?

Answer 8

A Dynamic Host Configuration Server delivers IP Addressing to clients using the DHCP Protocol

Ensure there are no duplicate addresses

Question 9

What is a Load Balancer?

Answer 9

A load balancer distributes traffic across multiple resources
- Transparent to the end user

Very Popular for web servers and web based applications

Provides Fault Tolerance

Question 10

What is a Proxy Server?

Answer 10

A proxy server handles external requests, Can provide different level of securities

Can provide different levels of
Security
Privacy
Functionality - Cache site content

Question 11

What are Span Gateways?

Answer 11

Spam Gateways check every e-mail and block spam before it even reaches the e-mail server

Question 12

What is UTM?

Answer 12

The Unified Threat Management combines security features in a single hardware appliance
Routing
Firewall
VPN
Anti-Spam

Question 13

What is SCADA? (Legacy)

Answer 13

SCADA is Supervisory Control and Data Acquisition System

Used on large scale industrial devices
Sensors
Valves
Motors

Dedicated hardware to manage those stems

Question 14

What Is IoT?

Answer 14

The Internet of Things Devices are traditionally dumb devices are now connected to the internet

-Lightbulb
-Door Locks
-Electrical Plugs
-Sensors
-Cars