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100
Define the following devices and their uses? (Host/Client, Application Server, Hub,Switch, Router)
Host/Client- computer or server requester App Server- software framework that executes programs Hub- device for connecting multiple devices together and making them act as a single network segment Switch- rechanneling feeds and turning on or off Router- connects two network and manages flow of information
100
State the difference between IPv4 and IPv6?
IPv4 was the beginning and didn't provide enough web addresses then updated to IPv6 which allowed for more domain range
100
ONENET
open-source standard for wireless networking. A Navy-wide initiative to install a common and secure IT infrastructure to OCONUS Navy locations.
100
Buffer overflow
error that occurs when incoming data rate exceeds acceptance capacity of a system
100
Describe the functionality of a PKI
Public Key Infrastructure- verification of who you are- digital siganture
200
Define the following devices and their uses? (WAP, Proxy server, Firewall, Repeater)
WAP (Wireless Application Protocol)- wireless service Proxy Server- a server that acts as an intermediary for requests seeking resources from other servers Firewall- block foreign or malicious access Repeater: device that receives signal and retransmits it at high level power
200
Define NIPRNET, SIPRNET, JWICS?
Non-classified Internet Protocol Router Network Secret Internet Protocol Router Network Joint Worldwide Intelligence Communications Systems
200
IT21
(IT fir 21st Century) Investment strategy for procuring electronics employed on afloat commands
200
Dictionary attack
An attack that uses words from a database (dictionary) to test against passwords until matched.
200
purpose of DNS
Domain Name System- translation of IPv6 into actual website: digital name to common name
300
Explain the following network terminology (topology-bus, star, ring, Mesh)
Bus Topology- A bus network runs one network cable from one end of the network to the other. all computers connected to a common medium. Star Topology- Allows all devices to communicate as if they were all directly connected. Ring Topology- information travels both directions- if one network goes down info can travel opposite direction Mesh Topology- every computer is directly connected to every other computer on the network.
300
Explain the following networks and where they are employed (DoDN-GIG)
Global information Grid-communication project of the DoD summation of all military networks
300
Privilege Escalation
the result when a user obtains access to a resource they normally wouldn’t be able to access.
400
Explain the following network terminology? (LAN, WAN,MAN,GAN)
Local Area network Wide Area Network Global Area Network Metropolitan Area Network
400
DISN
Defense information system network. DoD's network for providing data, video and voice service
400
Describe the following to include the risks associated? (virus, worm, Trojan, backdoor, Phishing)
Virus: A program intended to damage a computer system Worm: A program similar to a virus, however, a worm propagates itself over a network. Trojan: you think its one thing but its another Backdoor: find a vulnerability in the program and take advantage Phising: A form of social engineering in which you simply ask someone for a piece of information that you are missing by making it look as if it is a legitimate request.
400
Brute force attack
A type of attack that relies purely on trial and error.
500
Identify the functions, by layer, of the following model: OSI
Open Systems Interconnection Mode (OSI): divides communication systems into smaller parts called layers 1. bit-physical, 2. frame-data link, 3. packet-network, 4. segments-transport, 5 data-session, 6 data-presentation, 7 data-application
500
NMCI
Navy/Marine Corps Intranet: outsourcing program. Creates one network throughout CONUS locations using similar hardware and software.
500
Network enumeration and risk associated
retrieves usernames, info on groups, shares and services of network computers
500
Social engineering
an attack that uses others by deceiving them