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Explore questions in the Computer Science category that you can ask Spark.E!
- Which part of the mail created by the UA(User Agent) contains the sender and receiver names?A. envelope B. addressC. headerD. none of theme
- Those five primitives (Operations): LISTEN, CONNECT, RECEIVE, SEND, and DISCONNECT are for implementingA. Flow control in the Transport LayerB. Connectionless services in the Transport LayerC. None of these D. Connection-Oriented services in the Transport Layer
- This command identifies the sender of the message.A. RCPT TOB. HELOC. MAIL FROMD. none of them
- What is the service that the UDP protocol provides ?A. Error detection B. Flow controlC. None is correctD. Guaranteed delivery
- Which cable type used for segment length more than 2000 meters?A. Thick coaxB. Twisted pairC. Fiber opticsD. Thin coax
- Relating to CRC, a sequence of bits 100101 can be presented as polynomialA. None of them B. X^3+x^2+1C. X^2+X+1D. X^5+X^2+1
- Assume that Seoul National University is assigned with IP addresses wirtten as 194.6.96.0/30 what is the first address and the lass address of the university?A. 194.6.96.0 and 194.96.255B. 194.96.250 and 194.6.96.255C. 194.6.96.0 and 194.6.96.3D. 194.6.96.1 and 194.6.96.255
- The ________ domains define registered hosts according tho their generic behavior A. none is correctB. genericC. countryD. inverse
- Bridges work in the _______ layers.A. network and transportB. data link and networkC. physical and data link D. none is correct
- What is the default subnet mask for a class C network?A. 255.255.0.0B. 255.0.0.0C. 0.0.0.225D. 255.255.255.0
- IN a Datagram networks.A. No state about end-to-end connections at the routersB. Packets may take differnet paths for the same source-destination pairC. All are correct D. No call setup at network layer
- A set rules which is used by computers to communicate with each other across a network is called _________A. Network protocolsB. Network policies C. Network archieturesD. Network conventions
- An HTTP request message always contains _______.A. a status line, a header, and a bodyB. a header and a bodyC. none is correctD. a request and a header
- The OSI model consists of ________ layersA. Eight B. seven C. five D. three
- DNS can use the services of ________ using the well-known port 53.A. either (UDP) of (TCP)B. TCPC. none of them D. UDP
- What is the data unit used in Internet Protocol (IP)?A. Frame B. DatagramC. Message D. Segment
- Which one(s) is (are) routing algorithm(s) for IP?A. None of themB. Both (Distance vector algorithms (DVA) and (Link-state algorithms (LSA))C. Distance vector algorithms (DVA)D. Link-state algorithms (LSA)
- Which of the following statement is correct?A. Half-Duplex: Communcations that can go only one directionB. Full-Duplex: Communcations that can go only one directionC. Half-Duplex: Communcations in which both sender and receiver can send at the same timeD. Full-Duplex: Communcations in which both sender and receiver can send at the same time
- What does NAT stand for?A. Network Address TranslationB. Network Address TableC. Network Address TransferD. Network Address Taking
- In error reporting the encapsulated ICMP packet goes toA. None of themB. The original senderC. The receiverD. A router