CS6250/l CSl 6250l Examl 1l (Latestl 2025/l 2026l Update)l Guidel Q/Al |l Gradel A|l 100%l Correctl (Verifiedl Answers)
Q:l Whatl arel thel twol typesl ofl transportl protocols?
Answer:
TCPl andl UDP
Q:l Whatl doesl UDPl offer?l Howl isl itl differentl froml TCP?
Answer:
-l Connectionless,l bestl effortl service -l Nol flowl control,l congestionl control,l orl reliability
Q:l Whatl doesl TCPl offer?
Answer:
-l Connection-orientedl service -l Guaranteedl deliveryl ofl Applicationl layerl message -l Flowl controll (matchl thel transmissionl speedl ofl thel senderl tol thel receiver) -l Congestionl controll (slowl datal transmissionl forl congestedl network)
Q:l Whatl isl al packetl referredl tol inl thel Transportl layer?
Answer:
-l Segment
Q:l Whatl isl al packetl referredl tol inl thel Networkl layer?
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Answer:
-l Datagram
Q:l Howl isl thel Networkl layerl involvedl inl thel networkingl process?
Answer:
-l Movesl datagramsl froml onel internetl hostl tol another -l Deliversl packets,l schedules,l buffers -l Mustl deliverl datagraml tol Transportl layerl ofl destinationl host
Q:l Whatl arel thel Networkl layer'sl protocols?
Answer:
-l IPl -l Routingl protocols
Q:l Dol alll internetl hostsl andl devicesl runl IP?
Answer:
Yes
Q:l Whatl arel routingl protocolsl inl relationl tol thel networkl layer?
Answer:
Determinel routesl datagramsl canl takel froml sourcel tol destination
Q:l Whatl arel twol goalsl ofl thel networkl layer?
Answer:
-l Definesl globallyl uniquel addresses -l Maintainsl routingl tables
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Q:l Whatl arel packetsl calledl onl thel Datal Linkl layer?
Answer:
-l Frames
Q:l Whatl isl thel rolel ofl thel Datal Linkl layerl inl networking?
Answer:
-l Movel framesl tol thel nextl nodel -l betweenl 2l hostsl connectedl tol thel samel media -l Mayl offerl otherl servicesl dependingl onl protocol
Q:l Givel 2l examplesl ofl Datal linkl layer.
Answer:
-l Wifi -l Ethernet -l bridges -l switches
Q:l Whatl layerl arel wifil andl ethernetl examplesl of?l Bridgesl andl Switches?
Answer:
Datal Link
Q:l Whatl doesl thel Physicall layerl do?
Answer:
-l Interactsl withl hardware -l Transfersl bitsl inl al framel betweenl twol nodesl connectedl inl al physicall link
Q:l Givel twol examplesl ofl Physicall layerl protocols.
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Answer:
Coaxl cable,l fiberl optics
Q:l Whatl layerl arel coaxl cablesl andl fiberl opticsl partl of?
Answer:
Physical
Q:l Definel encapsulation.l Whatl datal doesl itl include?
Answer:
-l Takingl datal froml onel layerl andl translatingl itl intol datal usedl byl anotherl layer -l Includesl payloadl ofl upperl layerl andl currentl layer'sl headerl info
Q:l Howl doesl encapsulationl work?l Usel anl examplel withl thel Transportl layer,l Networkl layer,l andl Datal linkl layer.
Answer:
-l Transportl sendsl itsl Segmentl tol Network -l Whenl received,l networkl encapsulatesl Segmentl asl al Datagraml byl addingl itsl headerl tol thel segmentl datal l andl sendingl tol Datal link -l Whenl received,l Datal linkl encapsulatesl Datagraml byl addingl itsl headerl tol Datagraml datal andl sendingl itl tol thel Physicall laterl asl al Frame
Q:l Howl doesl decapsulationl work?l Usel anl examplel withl thel Transportl layerl andl Networkl layer.
Answer:
-l reversesl encapsulation -l datal linkl sendsl framel tol network -l networkl removesl headerl infol froml framel andl usesl itl asl asl datagram,l sendsl itl tol transport -l whenl transportl receives,l removesl headerl infol froml datagraml andl sendsl internall segmentl tol application
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