Week 8 Flashcards
ARP stands for
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Address Resolution Protocol
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API
Called as the PHONE BOOK of the INTERNET; Converts website domain names to numerical IPs
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Domain Name System
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DHCP
arrangement of the elements of a communication network
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Topology
Network layer protocol used to diagnose network communication issue
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ICMP
Number of bits for IPv4
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32 bits
Number of bits for IPv6
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128 bits
an approach to network management that enables dynamic, programmatically efficient network configuration in order to improve network performance and monitoring making it more like cloud computing than traditional network management.
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Software Defined Networking
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OSPF
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SNMP
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Network Component
What layer does repeaters work
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PHYSICAL (Layer 1)
multiport repeater
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Hub
LAN device used to connect LAN segments
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Bridge
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Forwarding Tables
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Routing Tables
What algorithm does Bridges use?
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Spanning Tree Algorithm
What layer does router work?
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Layer 3 (Network)
combine the functionality of a repeater and the functionality of a bridge
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Switch
general term for software running on a device that connects two different environments and acts as a translator for them or restricts their interactions.
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Gateway
private telephone switch that is located on a company’s property.
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Private branch Exchange (PBX)
Default port of POP3
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110 (default)
995 (Secured)
Default port of IMAP
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143 (default)
993 (Secured)
What does VLAN utilize?
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Packet Tagging (802.1Q)
Described as CHOKE POINT because all communication should flow through IT and where traffic is inspected and restricted
FIREWALL
Which layer does stateful inspection fw work?
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L3 (network) and L4 (transport)
intercepts and inspects messages before delivering them to the intended recipients
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Proxy FIrewalls (2nd Gen)
Another name of locked down or hardened system?
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Bastion Host
a server(a computer system or an application) that acts as an intermediary for requests from clients seeking resources from other servers.
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Proxy Server
Approach to information security where a single hardware or software installation provides multiple security functions
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Unified Threat Management (UTM)
geographically distributed network of proxy servers and their data centers.
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Content Distribution Network (CDN)
Any computing device that is connected to the network but does not mediate anything in the network
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endpoint
a computer that usually sits in the screened subnet or DMZ and attempts to lure attackers to it instead of to actual production computers
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Honeypot system
attempts to unify endpoint security technology
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Network Access Control
a backbone that connects LANs to each other and LANs to WANs
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Metropolitan Area Network (MAN)
a standard for telecommunications transmissions over fiber-optic cables
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SONET
required when digital equipment will be used to connect a LAN to a WAN.
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Channel Service Unit/Data Service Unit (CSU/DSU)
What device converts digital signals from routers, bridges, and multiplexers into signals that can be transmitted over the telephone company’s digital lines
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Data Service Unit (DSU)
a method by which multiple analog or digital signals are combined into one signal over a shared medium.
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Multiplexing
Two types of switching
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Packet Switching and Circuit Switching
a WAN protocol that operates at the data link layer
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Frame Relay
True of False: Is frame relay cost based on the amount of bandwidth used?
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True
Who owns Data Terminal Equipment?
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Customer
Frame Relay equipment owned by Service Provider?
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Data Circuit-Terminating Equipment
Protocol that provides any-to-any connection and a packet switching technology
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X.25
Uses a cell-switching and good carrier of video and voice connections
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Asynchronous Transfer Mode
What does Synchronous Data Link Control (SDLC) support?
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error correction and multipoint links
IEEE standard that defines token ring media access method
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802.5
bit-oriented code-transparent synchronous data link layer protocol developed by the International Organization for Standardization
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High-Level Data Link COntrol
