What is the purpose of subnetting in networking?

To divide a network into smaller subnetworks.

To increase the number of available IP addresses.

To establish faster network connections.

What is the purpose of VLANs in networking?

To logically segment a network into virtual LANs.

To enhance IP address management.

To secure network communications.

What is the purpose of DHCP in networking?

To dynamically assign IP addresses to devices on a network.

To establish secure VPN connections.

To optimize routing in a network.

What is the purpose of a firewall in networking?

To filter and control network traffic based on predetermined security rules.

To amplify network signals for extended reach.

To diagnose and troubleshoot network issues.

To encrypt network data for secure communication.

To manage network devices and configurations.

What is the purpose of a DNS server in networking?

To translate domain names into IP addresses.

To optimize network performance.

To regulate network traffic flow.

To establish secure remote access to a network.

To monitor network bandwidth usage.

What is the purpose of NAT in networking?

To translate IP addresses between private and public networks.

To optimize network routing tables.

To monitor network traffic for security breaches.

To manage network switches and routers.

What is the purpose of OSPF in networking?

To dynamically exchange routing information between routers.

To filter and control network traffic.

To allocate IP addresses to devices on a network.

To segment a network into virtual LANs.

To encrypt network data for secure communication.

What is the purpose of SNMP in networking?

To monitor and manage network devices.

To translate domain names into IP addresses.

To optimize network routing tables.

To dynamically assign IP addresses to devices.

To establish secure VPN connections.

What is the purpose of a subnet mask in networking?

To determine the network and host portions of an IP address.

To filter and control network traffic.

To establish secure remote access to a network.

To dynamically assign IP addresses to devices.

To translate domain names into IP addresses.

What is the purpose of an IP address in networking?

To uniquely identify a device on a network.

To secure network communications.

To divide a network into smaller subnetworks.

To filter and control network traffic.

To dynamically assign IP addresses to devices.

What is a subnet mask used for?

To determine the network and host portion of an IP address.

To encrypt network traffic for secure communication.

To provide redundancy and fault tolerance in a network.

To translate domain names into IP addresses.

What is the purpose of Quality of Service (QoS) in a network?

To prioritize certain types of network traffic over others.

To provide redundancy and fault tolerance in a network.

To filter and block unwanted network traffic.

To encrypt network traffic for secure communication.

What is the purpose of VLAN tagging?

To identify and separate network traffic into different broadcast domains.

To allow devices to communicate across different networks.

To increase network performance by aggregating multiple links.

To provide security by encrypting network traffic.

What is the purpose of a default gateway in a network?

To provide a path for network devices to communicate with devices on other networks.

To encrypt network traffic for secure communication.

To filter and block unwanted network traffic.

To increase network performance by aggregating multiple links.

What is the purpose of a DNS (Domain Name System) server?

To translate domain names into IP addresses.

To prioritize certain types of network traffic over others.

To provide redundancy and fault tolerance in a network.

To determine the network and host portion of an IP address.

What is the purpose of NAT (Network Address Translation)?

To allow multiple devices to share a single public IP address.

To determine the network and host portion of an IP address.

To provide redundancy and fault tolerance in a network.

To prioritize certain types of network traffic over others.

What is the purpose of a VPN (Virtual Private Network)?

To securely connect remote users or networks over the internet.

To determine the best path for routing IP packets in a network.

To increase network performance by aggregating multiple links.

To filter and block unwanted network traffic.

What is the purpose of BGP in network design?

To exchange routing information between different autonomous systems.

To connect two different networks together.

To encrypt network traffic for enhanced security.

Network engineer interview most asked questions

Spectacular - Spektakulär Unexpected - Oväntad A moment of truce - Ett vapenstillestånd Push the limits - Tänja på gränserna Free climber - Fria klättrare Descriptions - Beskrivningar Get a rush from - Få en kick från End up face to face with sharks - Sluta ansikte mot ansikte med hajar Crawling - Krypande Chalk powder - Kritpulver Pouch around your waist - Påse runt din midja On purpose - Med avsikt Seek thrills - Söka spänningar Accomplish my dreams - Uppnå mina drömmar Comes at a cost - Kommer med ett pris Permission - Tillstånd Achievements - Framgångar Fallen from heights - Fallit från höjder Fallen into a coma - Hamnat i koma Stiches - Stygn Target - Mål Reaching his goal - Nå sitt mål Retell - Berätta om Ordinary people - Vanliga människor Uncommon - Ovanlig On American soil - På amerikansk mark Hijacked - Kapat The outcome - Resultatet The public - Allmänheten Structural engineer - Byggnadsingenjör Port - Hamn Witnessing - Vittna Make it down the stairwell - Ta sig ner för trapphuset A roaring sound - Ett brölande ljud Take cover - Söka skydd Crouched down - Hopkrupen The walls cracked open - Väggarna sprack upp Underneath - Under Fall unconscious - Förlora medvetandet In the rubble - I rasmassorna Unaware of - Omedveten om Devastating moment in history - Förödande ögonblick i historien The mobile network is down - Mobilnätverket ligger nere Commit crimes - Begå brott Throughout history - Genom historien Path - Väg Whiny voice - Gnällig röst Wearing him down - Slita ner honom Long for - Längta efter Thumping - Dunkande Spiked with a deadly dose of poison - Spetsad med en dödlig dos gift Gone through with it - Genomfört det Constant nagging - Ständigt gnäll Infidelity - Otrohet Carved - Skuren Perform on the big stages - Uppträda på de stora scenerna Unrealistic demands - Orealistiska krav Something fishy is going on - Något skumt pågår Offered a reward - Erbjöd en belöning Downfall - Fall Accomplice - Medbrottsling Undoubtedly - Utan tvekan Board a ship - Stiga ombord på ett skepp Suspense - Spänning Trip on a wire - Snubbla på en tråd Invention - Uppfinning Customs officer - Tulltjänsteman Extraordinary - Extraordinär Nearly - Nästan The entire population - Hela befolkningen Cease to exist - Upphöra att existera Great courage - Stort mod Goodwill - God vilja A little bit of humanity - Lite mänsklighet In the midst - Mitt ibland Lose faith in - Förlora tro på Snowflakes - Snöflingor Turn the doorknob - Vrida dörrknoppen Shelter - Skydd Gesture towards the cabin - Gesta mot stugan Pale - Blek Commotion - Uppståndelse Medic - Sjukvårdare Ease up the tension - Minska spänningen Extend his hand - Sträcka ut sin hand Painkillers - Smärtstillande Supper - Kvällsmat Foolish - Dum Establish - Etablera Drop a nuclear bomb - Släppa en kärnvapenbomb The Great Plague - Den stora pesten Civil rights - Medborgerliga rättigheter Underline - Understryka Keen on - Angelägen om

Computing - Year 3 - We are network engineers

Plăcile de rețea (Network Interface Cards-NICs) conectează un echipament la rețea. Plăcile de rețea Ethernet sunt folosite pentru o conexiune cablată, în timp ce plăcile de rețea WLAN (Wireless Local Area Network) sunt folosite pentru wireless. Un echipament cu utilizator final ar putea include unul sau ambele tipuri de plăci de rețea. De exemplu, o imprimantă de rețea poate avea doar o placă de rețea Ethernet, așadar, trebuie să se conecteze la rețea printr-un cablu Ethernet. Alte echipamente, precum tabletele sau telefoanele pot conține o placă de rețea WLAN și trebuie să folosească o conexiune wireless. Layer-ul Fizic Layer-ul fizic de la OSI furnizează mijloacele de transport a biților care realizează un frame de data link în mediul de rețea. Acest layer acceptă un frame complet de la layer-ul data link și îl codifică sub forma unor serii de semnale care sunt transmise în mediul local. Biții codificați care comprimă un frame sunt primiți fie de un echipament final, fie de unul intermediar. Procesul prin care trec datele de la nodul sursă la nodus destinație este: • Datele utilizatorului sunt segmentate de layer-ul transport, plasate în pachete de către layer-ul rețea, iar apoi încapsulate sub formă de frame-uri de către layer-ul data link. • Layer-ul fizic codifică frame-urile și creează semnalele undelor electrice, optice și radio care reprezintă biții în fiecare frame. • Aceste semnale sunt trimise în mediu pe rând. • Nodul destinație preia aceste semnale individuale de la nivelul fizic, le transformă în reprezentare binară și transmit biții la nivelul superior, data link, sub forma unui frame. Mediul layer-ului Fizic Există trei forme de bază ale mediului de rețea. Layer-ul fizic produce reprezentarea și gruparea biților pentru fiecare mediu, după cum urmează: • Cablu de cupru: Semnalele sunt modele ale pulsurilor electrice. • Cablul cu fibră optică: Semnalele sunt modele de lumină. • Wireless: Semnalele sunt modele ale transmisiunilor cu microunde. Figura afișează exemple de semnalizare pentru cupru, fibră optică și wireless. Pentru a activa interoperabilitatea layer-ului fizic, toate aspectele acestor funcții sunt guvernate de organizațiile de standardizare. Standardele Layer-ului Fizic Protocoalele și operațiile layerelor superioare din OSI sunt efectuate în software proiectat de ingineri și oameni de știință. De exemplu, serviciile și protocoalele din suita TCP/IP sunt definite de Internet Engineering Task Force (IETF) în RFC-uri așa cum se arată în Figura 1. Layer-ul fizic constă în circuite electronice, mediu și conectori dezvoltați de ingineri. Așadar, este corespunzător ca standardele care guvernează acest hardware să fie definite de orgnizațiile relevante din domeniul ingineriei și electronicii. Există mai multe organizații naționale și internaționale diferite, organizații guvernamentale de reglementare și companii private implicate în stabilirea și menținerea standardelor layer-ului fizic. De exemplu, hardware-ul layer-ului fizic, mediul, codificarea și standardele de semnalizare sunt definite și guvernate de către: • International Organization for Standardization (ISO) • Telecommunications Industry Association/Electronic Industries Association (TIA/EIA) • International Telecommunication Union (ITU) • American National Standards Institute (ANSI) • Institute of Electrical and Electronics Engineers (IEEE) • Autoritățile de reglementare națională a telecomunicațiilor, inclusiv Federal Communication Commission (FCC) din USA și European Telecommunications Standards Institute (ESTI) Pe lângă acestea, există grupuri de standardizare a cablărilor regionale precum CSA (Canadian Standards Association), CENELEC (European Committee for Electrotechnical Standardization) și JSA/JSI (Japanese Standards Association), care dezvoltă specificații locale. Figura 2 listează contribuitorii principali și câteva standarde relevante ale layer-ului fizic.

Network

Network Systems & Social Computing Cloud Computing

Network cabling

Network, alternate, dynasty, conflict, recruit, decade, respectively, peak, prosperous, decline

Related quizzes

Related quizzes