Hálózati Eszközök és IEEE Szabványok

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Questions and Answers

Melyik IEEE szabványt használják a PoE-hez?

802.3af (correct)

802.1Q

802.11n

802.3at

Egy multipurpose hálózati eszközbe általában mely három eszköz van integrálva?

firewall

switch (correct)

wireless access point (correct)

router (correct)

Melyik két eszköz kap általában tápellátást PoE-n keresztül?

IP telefon (correct)

nyomtató

hozzáférési pont (correct)

kapcsoló

Melyik típusú jelzavar csökkentésében segít az STP jobban, mint az UTP?

RFI Signup and view all the answers

Mikor tekinthető a nyomtató hálózati gazda eszköznek?

Ha kapcsolóhoz csatlakozik Signup and view all the answers

Melyik technológia használatos leggyakrabban eszközök PAN-hoz való csatlakoztatására?

Bluetooth Signup and view all the answers

Melyik típusú hálózati média javasolt az elektromágneses interferenciától terhelt területeken?

Fiber optic Signup and view all the answers

Hány eszköz csatlakoztatható egyidejűleg egy Bluetooth eszközhöz?

7 Signup and view all the answers

Melyik típusú szerver tart nyilván történelmi feljegyzéseket a megfigyelt hálózati eszközök üzeneteiről?

Syslog szerver Signup and view all the answers

Melyik hálózati eszköz biztosít állapotfüggő csomagszűrést és email szűrést?

UTM Signup and view all the answers

Melyik vezeték nélküli okosotthon technológia támogatja az akár 232 eszköz csatlakoztatását egy nyílt szabvány keretén belül?

Z-Wave Signup and view all the answers

Melyik internetkapcsolat típus folyamatos szolgáltatást nyújt rádiójelek használatával?

Látótávolságos vezeték nélküli Signup and view all the answers

Melyik szolgáltatás alkalmazás kérhető, ha a célport 22?

SSH Signup and view all the answers

Melyik típusú csatlakozó szükséges egy analóg modem telefonvonalhoz való csatlakoztatásához?

RJ-11 Signup and view all the answers

Milyen funkciója van a patch panelnek?

Hálózati eszközök közötti összekapcsolás Signup and view all the answers

Melyik eszköz regisztrálja a gyenge jeleket, hogy meghosszabbítsa a jel távolságát?

Repeater Signup and view all the answers

Mi a Cisco ASA 5505-X (UTM) célja?

Biztonsági funkciók egyesítése Signup and view all the answers

Study Notes

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.

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Description

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.