Hálózati Eszközök és IEEE Szabványok

IEEE Standards and PoE

• 802.3af is the IEEE standard for PoE.

Multipurpose Network Devices

• A multipurpose network device typically integrates a switch, router, and wireless access point.

PoE-Powered Devices

• Access points and IP phones are commonly powered by PoE.

Signal Interference Reduction

• STP (Shielded Twisted Pair) reduces RFI (Radio Frequency Interference) and EMI (Electromagnetic Interference) more effectively than UTP (Unshielded Twisted Pair).

Printer as Network Host

• A printer is a network host when connected to a switch.

PAN Connection Technology

• Bluetooth is the most common technology for connecting devices to a Personal Area Network (PAN).

Network Media for EMI

• Fiber optic cables are recommended for networks in environments with high electromagnetic interference (EMI).

Bluetooth Device Connections

• A Bluetooth device can connect to up to 7 devices simultaneously.

MAC Address Forwarding

• A switch makes forwarding decisions based on destination MAC addresses in the network frame.

Proxy Server Functions

• A proxy server commonly stores frequently accessed web pages on the internal network.

WAN Characteristics

• A Wide Area Network (WAN) connects geographically spread networks.

TCP/IP Model Layers

• The correct order of the TCP/IP model layers from top to bottom is: Application, Transport, Internet, Network Access.

Wireless IEEE Standard

• 802.11n operates in both the 5 GHz and 2.4 GHz wireless frequency ranges.

Termination Order WIRES

• The green and orange wires change their termination order between 568A and 568B wiring standards.

Wireless Connectivity Device

• An access point provides wireless connectivity.

Fastest Internet Connection

• Fiber optic connections provide the fastest internet transfer rates.

Internet Connection Equipment

• A DSL modem is used to connect to the internet via the telephone network.

DHCP Port Number

• DHCP clients use port 68.

Data Flow Tracking

• PCs use source port numbers to track data flows between applications and ensure correct packet delivery to different applications.

Syslog Server

• A syslog server stores a historical record of messages from monitored network devices.

UTM Device

• A UTM device (Unified Threat Management) offers stateful packet filtering, email filtering, and VPN services.

Smart Home Wireless Technology

• Z-Wave is a smart home wireless technology supporting up to 232 devices with an open standard.

Cloud-Based Network Controller

• A cloud-based network controller allows administrators to manage multiple devices through a dashboard interface.

Line of Sight Wireless Connection

• Line of sight wireless is an always-on internet connection using radio signals from a tower to a home or business receiver.

Email Server Protocols

• Email servers support SMTP, POP, and IMAP protocols.

Dial-Up Connection Feature

• Dial-up connections use an analog modem over voice telephone lines.

Analog Modem Connector

• RJ-11 connectors are used to connect analog modems to telephone lines.

Patch Panel Function

• A patch panel terminates cables, securing them and keeping them organized to prevent tripping hazards.

Satellite Service Type

• LEO (Low Earth Orbit) satellite service supports up to approximately 100 Mbps with lower latency compared to standard satellite.

FTP Client Request Port

• Port 21 is the destination port for FTP client requests.

NetBIOS Request Port

• NetBIOS (NetBT) uses port 137.

SSH Request Port

• Port 22 is used for SSH client requests.

IMAP Request Port

• Port 143 is the destination port for IMAP client requests.

SNMP Request Port

• Port 161 is used for SNMP client requests.

Telnet Request Port

• Telnet uses port 23.

LDAP Request Port

• Port 389 is the destination port for LDAP client requests.

SMTP Request Port

• Port 25 is used for SMTP client requests.

DNS Request Port

• Port 53 is the destination port for DNS requests.

Access Point Purpose

• Access points provide wireless network access to wireless devices.

DSL Modem Purpose

• DSL modems connect a user's network to a phone company's digital infrastructure for always-on internet service.

Cloud-Based Network Controller Purpose

• Cloud-based network controllers allow network administrators to manage numerous remote networking devices from a central location.

Router Purpose

• Routers connect networks, forwarding traffic based on IP addresses.

Ethernet NIC Purpose

• Ethernet Network Interface Cards (NICs) connect computers to wired local area networks (LANs).

Firewall Purpose

• Firewalls protect networks and equipment from unauthorized access.

Wireless NIC Purpose

• Wireless Network Interface Cards (NICs) connect computers and devices to 802.11 wireless networks.

UTM Device Purpose

• UTM devices are all-in-one security appliances with IDS/IPS functionality and a stateful firewall.

Patch Panel Purpose

• Patch panels connect devices, switches, and routers; they can also regenerate weak signals.

Repeater Purpose

• Repeaters regenerate weak network signals to extend their transmission distance.

Ez a kvíz az IEEE szabványokról és a hálózati eszközök működéséről szól, beleértve a PoE-t (Power over Ethernet) és a jelzaj csökkentési technikákat is. Teszteld tudásodat a multipurpose eszközökről, Bluetooth kapcsolatokra és a hálózati média jellemzőire vonatkozóan.