CompTIA 220-1101 Core 1 Study Guide for IT Networking and Hardware, Exams of Nursing

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CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ Local Area Network (LAN) - correct answer ✅A network that covers a relatively small area such as a building or group of buildings (1.1 & 2.7) Personal Area Network (PAN) - correct answer ✅- 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) - correct answer ✅Lightweight & Inexpensive - Poor black levels due to Separate Backlight (1.2) TN (twisted nematic) - correct answer ✅Fast response Times - Low cost - Low Power Use - Limited Viewing Angles (1.2) IPS (In Plane Switching) - correct answer ✅Better Colors - Better Viewing Angles - More Expensive CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ (1.2) OLED (organic light-emitting diode) - correct answer ✅Thinner & Brighter - No Need for Backlight (1.2) MDM (mobile device management) - correct answer ✅- Manage company & user devices - Centralized management system - Ensures device security (1.4) MAM (mobile application management) - correct answer ✅- Set policies & restrictions on apps - Control Company software (Update, Remove, Etc.) (1.4) PRL (Preferred Roaming List) - correct answer ✅- Allows phone to connect to the right tower CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ Port 110 - correct answer ✅POP3 (Post Office Protocol 3) - TCP - Receive emails from an email server - Basic mail transfer functionality (2.1) Port 143 - correct answer ✅IMAP (Internet Mail Access Protocol) - TCP - Includes management of email inboxes from multiple clients. (Sync email across multiple devices) (2.1) Port 161/162 - correct answer ✅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 - correct answer ✅LDAP (Lightweight Directory Access Protocol) - TCP - Store & retrieve info in a network directory. - Commonly used in Microsoft Active Directory. CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ (2.1) Port 443 - correct answer ✅HTTPS (Hyper Text Transfer Protocol Secure) - TCP - Encrypted Communication in the Browser (2.1) Port 445 - correct answer ✅Server Message Block (SMB) & Common Internet File System (CIFS) - TCP - Provides direct connection & communication over TCP without the NetBIOS Transport (2.1) Port 3389 - correct answer ✅RDP (Remote Desktop Protocol) - TCP - Share a desktop from a remote location (2.1) Access Point - correct answer ✅Extends wired network & converts it into a wireless network. (2.2) CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ Router - correct answer ✅Routes traffic between IP subnets (2.2) Patch Panel - correct answer ✅- Goes between work desks & switches - Work desk connections to patch panel are permanent. (2.2) Firewalls - correct answer ✅-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) - correct answer ✅Devices that send Ethernet data and power over twisted-pair cable to compliant devices (for example, cameras, phones, etc). CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ - Standard system of file management - SMB (Server Message Block) - AFP (Apple Filing Protocol) (2.4) Print Server - correct answer ✅- 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 - correct answer ✅- A server that manages the storage and transfer of e-mail messages on a network. (2.4) CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ Syslog Server - correct answer ✅- A type of server used for collecting system messages from networked devices - Usually a central logging receiver (2.4) Web Server - correct answer ✅- 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 - correct answer ✅- 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 - correct answer ✅- Checks for Unsolicited Emails - Scans incoming mail to accept or reject it. CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ (2.4) UTM Gateway (Unified Threat Management Gateway) - correct answer ✅Services: - URL Filter / Content Inspection - Firewall - Malware Inspection - Spam Filter - VPN Endpoint - IDP / IPS (2.4) Load Balancer - correct answer ✅- 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 - correct answer ✅- A server that acts as an intermediary between a user and the Internet. - Access control, URL Filtering, Content Scanning CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ (2.5) Gateway - correct answer ✅- A node that handles communication between its LAN and other networks. (2.5) DNS Configuration - correct answer ✅- 13 root server clusters (Over 1,000 actual servers) - 100's of Generic Top Level Domains (gTLD) - Over 275 Country-Code Top-Level Domains (ccTLD) (2.6) Address Records - correct answer ✅- A records are for IPv4 addresses - AAAA records are for IPv6 addresses (2.6) MX (Mail Exchanger) - correct answer ✅- Determines host name for mail server (2.6) CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ TXT (Text Records) - correct answer ✅- Can be used for verification purposes - Commonly used for email security - External email servers validate info from your DNS. (2.6) Spam Management - correct answer ✅- Domain Keys Identified Mail (DKIM) - Digitally sign a domains outgoing mail - Public key is available in DKIM TXT record - Sender Policy Framework (SPF) - List of all servers authorized to send emails on behalf of this domain; prevents email spoofing - Mail server validates mail is coming from authorized host - Domain-based Message Authentication, Reporting, & Conformance (DMARC) - Extension of DKIM / SPF - Decides what servers do with mail that isn't accepted by SPF/DKIM (2.6) CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ Lease - correct answer ✅- Created by the DHCP server to allow a system requesting an IP to use that IP for a certain amount of time. (2.6) Reservation - correct answer ✅- An IP address that is set aside by a DHCP server for a specific network client, which is identified by its MAC address. (2.6) Scope - correct answer ✅- The predefined range of addresses that can be leased to any network device on a particular network. (2.6) VLAN (Virtual Local Area Network) - correct answer ✅- Separated logically instead of physically - Multiple domains under one physical switch (2.6) VPN (Virtual Private Network) - correct answer ✅- Concentrator - Encryption/Decryption access device CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ WAN (Wide Area Network) - correct answer ✅- Generally connects LANs across a distance - Many different technologies - Point-to-point Serial, MPLS, etc. (2.7) MAN (Metropolitan Area Network) - correct answer ✅- A network covering a city - Bigger than LAN, usually smaller than WAN - Common to see government ownership (2.7) SAN (Storage Area Network) - correct answer ✅- Looks & feels like a local storage device - Requires high bandwidth - Some people may use an isolated network solely for the SAN (2.7) WLAN (Wireless Local Area Network) - correct answer ✅- A self-contained network of two or more computers connected using a wireless connection. CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ - Usually within a building (2.7) Cable Crimpers - correct answer ✅- "Pinch" the connector onto a wire - Coaxial, twisted pair, fiber - Connect the modular connector to the Ethernet cable - Metal prongs are pushed through the insulation (2.8) WiFi Analyzer - correct answer ✅- Everyone "hears" everything - Specializes in 802.11 analysis - Identify errors and interference - Validate antenna location and installation (2.8) Tone Generator / Probe - correct answer ✅- Tone generator - Sends an analog sound through the cable it is attached to - Probe CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ - Makes noise and/or lights up when touching the cable with the generator attached - Easy wire tracing (2.8) Punch Down Tool - correct answer ✅- A pointed tool used to insert twisted-pair wire into receptors in a punch-down block - Organization is key - Maintain twists in cables (2.8) Cable Testers - correct answer ✅- Continuity test - Can identify missing pins or crossed wires - Not usually used for frequency testing (2.8) Loopback Plug - correct answer ✅- Useful for testing physical ports - Serial, Ethernet, T1, fiber - Data leaves the interface, loops back, and reenters CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ Direct Burial STP - correct answer ✅- Protected from elements - Cable is buried in the ground - Often filled with gel to repel water - Shielding in the STP protects against interference (3.1) Plenum - correct answer ✅- The area above the ceiling tile for the HVAC system and usually network wires to run - Traditional cable is Polyvinyl Chloride (PVC) and not safe against fires - Fire Rated Cable Jackets to use in a Plenum: - Fluorinated Ethylene Polymer (FEP) - Low-Smoke PVC (3.1) Fiber - correct answer ✅- Transmission by light - No RF signals - Difficult to monitor & tap - Multimode: Short Range Communication (2km) - Uses Cheaper LED's - Single Mode: Long Range Comm. (100km) - Uses Expensive Lasers CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ (3.1) T568A & T568B - correct answer ✅- The two color codes used for wiring eight- position RJ45 modular plugs. - Neither is better than the other - Many organizations typically use T568B (3.1) USB 2.0 - correct answer ✅- HighSpeed: 480 megabits per second - 5 meters max length (3.1) USB 3.0 - correct answer ✅- SuperSpeed: 5 gigabits per second - 3 meters (No specified Length) (3.1) Serial (Console Cable) - correct answer ✅- Used to configure telephone and networking equipment - Commonly used for RS-232 CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ (3.1) Thunderbolt Cable - correct answer ✅- High-speed serial connector - Thunderbolt v2 -20 Gbit/s aggregated channels -Mini DisplayPort connector - Thunderbolt v3 -40 Gbit/s aggregated throughput -USB-C connector - 3 meters w/ copper, 60 meters w/ optical (3.1) HDMI (High-Definition Multimedia Interface) - correct answer ✅- Digital audio and video interface - 19-pin type a connector - Around a 20 meter range (3.1) DisplayPort - correct answer ✅- Digital video connector in packetized form CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ - Originally called PATA (Parallel AT Attachment) (3.1) RJ-11 Connector - correct answer ✅- A phone line connection or port found on modems, telephones, and house phone outlets. - 6 Position, 2 Conductor (6P2C) (3.1) RJ-45 Connector - correct answer ✅- A connector on an Ethernet cable, containing four twisted pairs of wires. - Like a telephone cable connector (RJ-11), but slightly wider. - 8 Position, 8 Conductor (8P8C) (3.1) F-Type Connector - correct answer ✅- Most common coaxial cable connector which features a screw on attaching mechanism. - Uses DOCSIS (3.1) CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ ST (Straight Tip) Connector - correct answer ✅- A type of connector used by fiber- optic cables and can be used with either single-mode or multimode fiber-optic cables. - Connector does not support full-dupex transmissions and is not used on the fastest fiber-optic systems (3.1) SC (Subscriber Connector) - correct answer ✅- A fiber-optic cable connector that snaps and locks into place. (3.1) LC (Lucent Connector) - correct answer ✅- A small form-factor fiber optic connect - Uses a 1.25 mm furrule, half the size of the ST. (3.1) Punch down Block - correct answer ✅- A panel of data receptors into which twisted pair wire is inserted, or punched down, to complete a circuit. (3.1) CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ microUSB - correct answer ✅- Smaller than a standard USB and used usually for mobile devices to charge and pass information. (3.1) miniUSB - correct answer ✅- This connector is used by portable electronic devices, such as digital cameras and some portable storage devices. (3.1) USB-C - correct answer ✅- 24 pin double sided USB connector - Smaller than regular USB connector - Used for USB, Thunderbolt, etc. (3.1) Molex Connector - correct answer ✅- 4 pin power connector used by optical drives, hard drives, and case fans - Keyed to prevent it from being inserted into a port improperly. - Provides +12V and +5V (3.1) CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ -Should always match (exact matches are best) -Memory modules slots are often colored differently -Maximizes throughput (3.2) HDD (Hard Disk Drive) - correct answer ✅- The most common type of hard drive in computers. It includes spinning platters and read/write heads. - Speed to Latency (RPM/MS) - 15,000 (2ms) - 10,000 (3ms) - 7,200rpm (4.16ms) - 5,400rpm (5.55ms) - Typically 3.5" (3.3) SSD (Solid State Drive) - correct answer ✅- Non volatile memory (No moving parts) - Faster than HDD - Communicate over SATA, NVMe, and PCIe - Typically 2.5" drive CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ (3.3) NVMe (Non-Volatile Memory Express) - correct answer ✅- Lower Latency & Higher Throughputs - Runs off M.2 interface (3.3) M.2 - correct answer ✅- Can use a PCIe bus connector - Different connectors on drive (B, M, or B&M) - Won't always support NVMe (May be using AHCI) - Replaced mSATA quickly (3.3) Flash Drives - correct answer ✅- Use Flash Memory = EEPROM - Electronically Erasable Programmable Read-Only Memory - Limited number of writes allowed - You can always read the information - Memory Cards: SD, microSD, miniSD, CompactFlash, xD, etc. (3.3) CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ Optical Drives - correct answer ✅- Small bumps are read with a laser beam - CD-ROM, DVD-ROM, Blu-Ray - Can be an internal or external drive (3.3) RAID (Redundant Array of Independent Disks) - correct answer ✅- Has different levels - Some levels are redundant, some levels are not - Can be inexpensive disks (3.3) Raid 0 - correct answer ✅- Striping = Splits data evenly between two disks - High-Performance - No Redundancy (3.3) Raid 1 - correct answer ✅- Mirroring = Files are duplicated between 2 or more drives CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ - 4, 4+4, or 8 Pin CPU Connector (3.4) Front Panel Connectors - correct answer ✅- A group of small wires running from the front of the computer case to the motherboard. - Control buttons & LED's on the case (3.4) Intel and AMD (Advanced Micro Devices) - correct answer ✅- Two producers of CPU's for computers - AMD typically less expensive - Differences have become more subtle over the years (4.4) Server Motherboard - correct answer ✅- Has space for multiple CPUs to split the load - Typically has 4+ memory slots (4.4) CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ Laptop Motherboard - correct answer ✅- Small & Light - CPU is usually limited in speed, has thermal throttling to control temps - Limited ability to interchange parts (RAM, Storage, etc.) (3.4) BIOS Boot Options - correct answer ✅- Enable & Disable Hardware - Modify Boot Order for Connected Drives - Control what happens when your computer turns on (3.4) BIOS (basic input / output system) - correct answer ✅- The program a CPU uses to start a computer when it is turned on. (3.4) UEFI BIOS (Unified Extensible Firmware Interface BIOS) - correct answer ✅- Based on Intel's EFI (Extensible Firmware Interface) - Designed to replace Legacy BIOS - Extremely Outdated (3.4) CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ USB Permissions - correct answer ✅- Enable / Disable USB Ports through the BIOS - DoD disabled all USB ports for 15 months after malware attack (3.4) TPM (Trusted Platform Module) - correct answer ✅- A chip on a motherboard that holds an encryption key required at startup to access encrypted data on the hard drive. - Windows BitLocker Encryption can use the TPM chip. - Password protected (3.4) Secure Boot - correct answer ✅- UEFI feature that prevents a system from booting up with drivers or an OS that are not digitally signed and trusted by the motherboard / manufacturer - Boot-loader must contain signature from Secureboot (3.4) Boot Password - correct answer ✅- System will not boot up without password CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ (3.4) Sound Card - correct answer ✅- Device that can be slotted into a PCI slot to allow the use of audio components - Multiple input types (3.4) Video Card (GPU) - correct answer ✅- Processes video and graphics data - Higher performance vs integrated graphics (3.4) Capture Card - correct answer ✅- Sends video signal to a computer so that the signal can be recorded and saved to the storage drive - Video as an input - High performance (PCIe) (3.4) Case Fans - correct answer ✅- Layout, Location, and Size all matter - 80, 120, 140, & 200mm are common sizes CompTIA 220-1101 Core 1 Study exam Q& As 2023/2024 GRADED A+ - Variable speed and sound (3.4) Heatsinks - correct answer ✅- Passive cooling systems with metal fins to dissipate heat through thermal conduction (Copper or Aluminum Alloy) - Thermal paste creates contact between chip and heatsink (3.4) Thermal Pad - correct answer ✅- Not reusable - Not as effective as thermal paste - Mess free (3.4) Liquid Cooling - correct answer ✅- Coolant is circulated through a computer - Used in cars and mainframe computers - High-End systems - Gaming/Graphics processing - Contains radiator and fan (3.4)