Network Servieces

Question 1

DNS Server

Answer 1

Domain Name System
-Converts name to IP addresses

Distributed naming system
-The lead is balanced across many different severs

Usually managed by the ISP or enterprise IT department
- A critical resource

Question 2

DHCP Server

Question 3

File Server

Question 4

print Server

Question 5

Mail Server

Question 6

Syslog

Question 7

Web Server

Question 8

Authentication Server

Answer 8

Login authentication to resources
-Centralized manafement

Almost alays an enterprise sevices
-not Required on a home network

Question 9

Spam

Answer 9

Unsolicited Messages
-Email, Forums, ETC.

Various content
- Commercial proselutzying

Question 10

Spam Gateways

Answer 10

Unsolicited Email
- Stop it at the gateway before it reaches the user

Question 11

All-in-one Secutity Appliance

Answer 11

Next Gen firewall, Unified Threat Management (OTM) / Web security Gateway

URL filter / Contact inspection

Question 12

Lead Blancers

Answer 12

Distribute the load
- Multiple servers
- Invisible

Question 13

What are the load blancer features

Answer 13

Configurable load
- Manage across servers

TCP offload
- Protocol overhead

SSl Offload
- Encryption/ Decrypation

Question 14

Procy Server

Answer 14

An intermediate Server
-Client makes the request to the procy
- the procy prefome the actuall request
-

Question 15

SCADA / ICS

Answer 15

PC manages eqquipment

Question 16

Legacy and Embedded Systems

Answer 16

Legacy Systems
- Another Expression for “really old”
-may also be “really important”
- Learning old things can be just as important as learning the new things

Embedded Systems
- Purpose - built Device
- Not usual to have direct access

Question 17

IoT(Internet Of Things) devices

Answer 17

Appliances
-Refrigerators

Smart devise
- Smart speakers respond to voice commands

Air Control
- Thermostats, Temperature Control

Access
- Smart doorbells

May require a segmented network
- Limit any Security Breaches