DNI basics
Computers that hold shared programs, files, and the other Network OS; allows access to network resources to all the users of the network
What are Servers?
Communication in analog format being converted into digital signals. FaceTime is an example of this.
What is VoIP?
The instructions the network uses to function
What is Internet Protocol (IP)?
Involves the three-way handshake
What is TCP connection establishment?
Encrypt, Decrypt, compression, opening a dialog, translation, user interface
Connects computers, printers, and other hardware devices to a network; allows devices on your network to communicate with each other.
What is a Network Interface Card?
using the virtualized pool of resources such as processing power can be “borrowed” from servers separate from the computer
What is cloud computing?
Breaking up information so that it can move as fast as possible
What is Packet Switching?
Four building blocks of DNS
What is DNS resolver, DNS Root Server, TLD Name Server, Authoritative Name Server?
Five main protocols of the application layer
A device that splits network connections into multiple computers; acts as a distribution center.
What is a Hub?
Address resolution Protocol, which maps IP address to ethernet address (port)
What is RFC 826?
32-bits, most common address system
What is IPv4?
Utilizing the public network securely, uses the "host" part of the website and the TLD
What is FQDN ( Fully Qualified Domain Name)?
An inexperienced hacker who takes revenge against those who anger or challenge them.
What is a blue hat hacker?
Connects the user with multiple networks; acts as a dispatcher that moves data by using the IP address of a node.
What is a router?
The four layers of the TCP/IP model
Application, Transport, Internet, Network Interface Layer
Where the first octet is 1110 and is reserved for multicasting
What is Class D addresses?
Give me 5 of the DNS Records and what they do
A Record- IPv4, cache AAAA Record- IPv6, cache CNAME, canonical name records, recognizes when you type something in wrong MX- Mail exchange, email NS- Name server- DNS Zone PTR- reverse lookup ip to website CERT- certificate records, stores, money, SRV- service location, vpn makes this useless,SOA- Start of authority, metadata
Criminals who gain unauthorized access to a system and destroy vital data
What is a black hat hacker?
Sends, receives data, and controls data flow between the computer and the network.
What is a switch?
Topology where everything is partial connected
What is a Partial Mesh?
Class B Private ranges
What is 172.16.0.0- 172.31.255.255
Give me All of the RIR's
ARIN – American Registry for Internet Numbers - North America RIPE – Reseaux IP Europeans – Europe, Middle East, and Central Asia APNIC – Asia-Pacific Network Information Centre – Asia and Pacific region LACNIC – Latin American and Caribbean Internet Addresses Registry – Latin American and Caribbean AfriNIC – African Network Information Centre - Afric
Appointed by government officials to gain confidential information from other countries
What is a State/Nation Sponsored Hackers?