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CompTIA A+ 220-1101 Core 1 Study Flashcards Part 2
This deck covers key concepts and components related to networking and internet protocols, including hardware, server types, and IP addressing as part of the CompTIA A+ 220-1101 Core 1 exam preparation.
Patch Panel
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Key Terms
Term
Definition
Patch Panel
- Goes between work desks & switches
- Work desk connections to patch panel are permanent.
(2.2)
Firewalls
-Filters traffic by TCP/UDP port number (OSI Layer 4 filtering)
-Some can filter based on the application
-Can encrypt traffic in/out of the network (...
PoE (Power over Ethernet)
Devices that send Ethernet data and power over twisted-pair cable to compliant devices (for example, cameras, phones, etc).
(2.2)
Modem
- Cable Version: Uses DOCSIS (Data over Cable Service Interface Specification) which is broadband.
- DSL Version: Uses ADSL (Asymmetrical Digital Subs...
ONT (optical network terminal)
- Fiber
- ISP fiber line stretches to demarc point at which your in-home copper wire takes over.
(2.2)
NIC (Network Interface Card)
- A device that serves as an interface between the computer and the network. Also called a network adapter or network card.
- Ethernet Connection
- Ma...
Related Flashcard Decks
| Term | Definition |
|---|---|
Patch Panel | - Goes between work desks & switches
- Work desk connections to patch panel are permanent.
(2.2) |
Firewalls | -Filters traffic by TCP/UDP port number (OSI Layer 4 filtering)
-Some can filter based on the application
-Can encrypt traffic in/out of the network (protect traffic between sites)
-Can proxy traffic (common security technique)
-Can be used as a Layer 3 device (routers)
(2.2) |
PoE (Power over Ethernet) | Devices that send Ethernet data and power over twisted-pair cable to compliant devices (for example, cameras, phones, etc).
(2.2) |
Modem | - Cable Version: Uses DOCSIS (Data over Cable Service Interface Specification) which is broadband.
- DSL Version: Uses ADSL (Asymmetrical Digital Subscriber Line) where download speed is higher than upload speed.
(2.2) |
ONT (optical network terminal) | - Fiber
- ISP fiber line stretches to demarc point at which your in-home copper wire takes over.
(2.2) |
NIC (Network Interface Card) | - A device that serves as an interface between the computer and the network. Also called a network adapter or network card.
- Ethernet Connection
- May need drivers installed before hardware is installed (Check Manual)
(2.2) |
802.11 Types | a (10/1999) - 5Ghz & 54 mbit/s
b (10/1999) - 2.4 Ghz & 11 mbit/s
g (06/2003) - 2.4 Ghz & 54 mbit/s
n (10/2009) - 2.4/5 Ghz & 600 mbit/s
ac (01/2014) - 5 Ghz & Almost 7 Gb/s
ax (02/2021) - 2.4/5 Ghz & About 9.6 Gb/s
(2.3) |
DNS Server | - Converts a website name to an IP Addresses
- Usually managed by ISP or enterprise IT Dept.
(2.4) |
DHCP Server | - The server leases IP addresses to network clients
- IP Range: 10.1.10.10 through 10.1.10.199
(2.4) |
File Server | - Centralized Storage of documents, files, etc.
- Standard system of file management
- SMB (Server Message Block)
- AFP (Apple Filing Protocol)
(2.4) |
Print Server | - Connect a printer to the network
- Provide printing services for all network devices
- May be built-in to the printer
- Uses standard printing protocols
- SMB (Server Message Block),
- IPP (Internet Printing Protocol),
- LPD (Line Printer Daemon)
(2.4) |
Mail Server | - A server that manages the storage and transfer of e-mail messages on a network.
(2.4) |
Syslog Server | - A type of server used for collecting system messages from networked devices
- Usually a central logging receiver
(2.4) |
Web Server | - A server that delivers requested webpages to your computer or mobile device
- Uses HTTPS/HTTPS & HTML/HTML5
- Web pages are stored on the server
(2.4) |
Authentication Server | - A server that keeps track of who's logging on to the network and which services on the network are available to each user.
- Redundant Server (Always Available)
(2.4) |
Spam Gateway | - Checks for Unsolicited Emails
- Scans incoming mail to accept or reject it.
(2.4) |
UTM Gateway (Unified Threat Management Gateway) | Services:
- URL Filter / Content Inspection
- Firewall - Malware Inspection
- Spam Filter - VPN Endpoint
- IDP / IPS
(2.4) |
Load Balancer | - A dedicated network device that can direct requests to different servers based on a variety of factors.
- Distributes load to multiple servers
- Server outages have no effect
- TCP & SSL Offload
(2.4) |
Proxy Server | - A server that acts as an intermediary between a user and the Internet.
- Access control, URL Filtering, Content Scanning
(2.4) |
SCADA / ICS (Supervisory Control and Data Acquisition / Industrial Control System) | - Large-scale
- PC Manages Equipment
- Requires extensive segmentation
- Usually expensive software, requires elevated permission to access.
(2.4) |
IoT (Internet of Things) | - Appliances such as fridges & microwaves
- Air control (Smart Thermostats)
- Access Devices (Smart doorbells and locks)
(2.4) |
IPv4 | - The dominant protocol for routing traffic on the Internet
- 4 Numbers (X.X.X.X)
- 32 bits or 4 bytes -> 8 bits per number
- Max value for each number is 255
(2.5) |
IPv6 (Internet Protocol version 6) | - 8 hexadecimals (X.X.X.X.X.X.X.X)
- 128 bits or 16 bytes -> 16 bits per number
|
APIPA (Automatic Private IP Addressing) | - Link Local addresses (no router forwarding)
- IETF has reserved 169.254.0.0 - 169.254.255.255
- Only communicates on your network
(2.5) |
Static IP | - An IP address that is manually assigned to a device and remains constant until it is manually changed.
(2.5) |