Network Services

Question 1

windows based file and print server

Answer 1

relies on NetBIOS protocol or SMB

Question 2

samba

Answer 2

• linux
• host files or printers used by windows using SMB protocol

Question 3

802.1x

Answer 3

standardized framework used for port based authentication over network
- TACACS, RADIUS

Question 4

RADIUS

Answer 4

centralized admin of dialup, VPN, wireless authentication services
- app layer
- UDP = fast

Question 5

TACACS+

Answer 5

• cisco only
• role of authenticator in network
• TCP
• supports all network protocols

Question 6

kerberos

Answer 6

authentication protocol used by windows for 2 way authentication using system of tickets

Question 7

RDG

Answer 7

remote desktop gateway
- creates secure connection to tunnel into RDP

Question 8

VNC

Answer 8

port 5900
- designed for thin client architectures
- cross platform

Question 9

TTY

Answer 9

terminal emulator
- replicate I/O functionality to remotely connect to a device

Question 10

syslog

Answer 10

de facto standard for logging events
- runs on most OS
- PRI (priority code), header (host name), message (content)

Question 11

proxy servers

Answer 11

create network between end user’s client machine and remote resource/web server
- increased security
- web caching
- auditing capability

Question 12

load balancers/ content switch

Answer 12

distributes incoming requests across number of servers inside server farm/cloud
- defend against DoS or DDoS

Question 13

blackholing/sinkholing

Answer 13

ids any attacking IP addresses and routes their traffic through null interference

Question 14

ICS

Answer 14

• industrial control system
• control machinery using embedded devices

Question 15

SCADA

Answer 15

• supervisory control and data acquisition
• type of ICS to manage large scale multi-site devices and equipment in geographic region from host computer

Question 16

embedded systems

Answer 16

computer system designed to perform specific and dedicated functions
- static systems
- system on a chip (roku, fireTV)