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CompTIA A+ 220-1101 Core 1 Study Flashcards Part 1
This deck covers key concepts and definitions related to networking, display technologies, and port protocols essential for the CompTIA A+ 220-1101 Core 1 exam.
Local Area Network (LAN)
A network that covers a relatively small area such as a building or group of buildings (1.1 & 2.7)
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Key Terms
Term
Definition
Local Area Network (LAN)
A network that covers a relatively small area such as a building or group of buildings (1.1 & 2.7)
Personal Area Network (PAN)
- Provides communication for devices owned by a single user that work over a short distance - Bluetooth, IR, NFC, etc. (1.1 & 2.7)
LCD (Liquid Crystal Display)
Lightweight & Inexpensive - Poor black levels due to Separate Backlight (1.2)
TN (twisted nematic)
Fast response Times - Low cost - Low Power Use - Limited Viewing Angles (1.2)
IPS (In Plane Switching)
Better Colors - Better Viewing Angles - More Expensive (1.2)
OLED (organic light-emitting diode)
Thinner & Brighter - No Need for Backlight (1.2)
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| Term | Definition |
|---|---|
Local Area Network (LAN) | A network that covers a relatively small area such as a building or group of buildings (1.1 & 2.7) |
Personal Area Network (PAN) | - Provides communication for devices owned by a single user that work over a short distance - Bluetooth, IR, NFC, etc. (1.1 & 2.7) |
LCD (Liquid Crystal Display) | Lightweight & Inexpensive - Poor black levels due to Separate Backlight (1.2) |
TN (twisted nematic) | Fast response Times - Low cost - Low Power Use - Limited Viewing Angles (1.2) |
IPS (In Plane Switching) | Better Colors - Better Viewing Angles - More Expensive (1.2) |
OLED (organic light-emitting diode) | Thinner & Brighter - No Need for Backlight (1.2) |
MDM (mobile device management) | - Manage company & user devices - Centralized management system - Ensures device security (1.4) |
MAM (mobile application management) | - Set policies & restrictions on apps - Control Company software (Update, Remove, Etc.) (1.4) |
PRL (Preferred Roaming List) | - Allows phone to connect to the right tower (1.4) |
Port 20/21 | FTP (File Transfer Protocol) - 20(TCP) for Data Transfers - 21(TCP) to Control Data Transfers (2.1) |
Port 22 | SSH (Secure Shell) - TCP - Encrypted Communication - Looks/Acts the same as Telnet (2.1) |
Port 23 | Telnet (Telecommunications Network) - TCP - Non-encrypted Communication - Log into devices remotely (2.1) |
Port 25 | SMTP (Simple Mail Transfer Protocol) - TCP - Used to send mail from device to mail server (2.1) |
Port 53 | DNS (Domain Name System) - UDP - Converts names to IP addresses - CRITICAL Resource (2.1) |
Port 67/68 | DHCP (Dynamic Host Configuration Protocol) - UDP - Automated configuration of IP addresses - IPs can be reserved for certain devices - IP Range: 10.1.10.10 through 10.1.10.199 (2.1) |
Port 80 | HTTP (Hypertext Transfer Protocol) - TCP - Non-encrypted communication in the browser (2.1) |
Port 110 | POP3 (Post Office Protocol 3) - TCP - Receive emails from an email server - Basic mail transfer functionality (2.1) |
Port 143 | IMAP (Internet Mail Access Protocol) - TCP - Includes management of email inboxes from multiple clients. (Sync email across multiple devices) (2.1) |
Port 161/162 | SNMP (Simple Network Management Protocol) - UDP - Port 161 queries devices for performance statistics. - Port 162 monitors when metrics exceed a certain threshold. (2.1) |
Port 389 | LDAP (Lightweight Directory Access Protocol) - TCP - Store & retrieve info in a network directory. - Commonly used in Microsoft Active Directory. (2.1) |
Port 443 | HTTPS (Hyper Text Transfer Protocol Secure) - TCP - Encrypted Communication in the Browser (2.1) |
Port 445 | Server Message Block (SMB) & Common Internet File System (CIFS) - TCP - Provides direct connection & communication over TCP without the NetBIOS Transport (2.1) |
Port 3389 | RDP (Remote Desktop Protocol) - TCP - Share a desktop from a remote location (2.1) |
Access Point | Extends wired network & converts it into a wireless network. (2.2) |
Router | Routes traffic between IP subnets (2.2) |