is an error detection code that most data communication networks use。A．CRCB．Manchester CodeC．Huffman CodeD．4B/5B Code
is an error detection code that most data communication networks use。
A．CRC
B．Manchester Code
C．Huffman Code
D．4B/5B Code
相关考题：
●For each blank，choose the best answer from the four choices and write down on the answer sheet．(66) is a protocol that a host uses to inform. a router when it joins or leaves an Internet multicast group．(67) is an error detection code that most data communication networks use．(68) is an interior gateway protocol that uses a distance vector algorithm to propagate routing information．(69) is a transfer mode in which all types of information are organized into fixed form. cells on an asynchronous or non-periodic basis over a range of media．(70) is an identifier of a web page．(66) A．SMTPB．ICMPC．RARPD．IGMP(67) A．4B／SBB．CRCC．Manchester CodeD．Huffman Code(68) A．OSPFB．RIPC．RARPD．BGP(69) A．ADSLB．ATMC．Frame. RelayD．DDN(70) A．HTTPB．URLC．HTMLD．TAG
●One use of networks is to let several computers share (71) such as file systems，printers，and tape drives.(71) A．CPUB．memoryC．resourcesD．data
● (66) is a protocol that a host uses to inform. a router when it joins or leaves anInternet multicast group.(67) is an error detection code that most data conlmunication networks use.(68) is an interior gateway protocol that uses a distance vector algorithm to propagaterouting information.(69) is a transfer mode in which all types of information are organized into fixed form. cells on all asynchronous or nonperiodic basis over a range of mediA．(70) is an identifier of a web page.(66) A．ICMPB．SMTPC．IGMPD．ARP(67) A．4B／5BB．CRCC．Manchester CodeD．Huffman Code(68) A．OSPFB．RIPC．RARPD．BGP(69) A．ISDNB．x.25C．Frame. RelayD．ATM(70) A．HTTPB．URLC．HTMLD．TAG
In most wide area networks, the communication subnet consists of two distinct components：transmission lines andA．networtsB．switching elementsC．computersD．data terminal equipment
You need to serialize an object of type Listint in a binary format.The object is named data.Which code segment should you use?() A.B.C.D.
You are developing a client that sends several types of SOAP messages to a Windows Communication Foundation (WCF) service method named PostData. PostData is currently defined as follows:[OperationContract]void PostData(Order data);You need to modify PostData so that it can receive any SOAP message. Which code segment should you use？（）A. [OperationContract(IsOneWay=true, Action=*, ReplyAction=*)] void PostData(Order data);B. [OperationContract(IsOneWay=true, Action=*, ReplyAction = *)] void PostData(BodyWriter data);C. [OperationContract] void PostData(BodyWriter data);D. [OperationContract] void PostData(Message data);
The data station usually means a(71)unit that provides data for transmission, that accepts transmitted data, and that performs all functions necessary for communication with another functional unit. Data stations may be divided into two kinds, the primary stations and the secondary stations, (72)control functions.In(73)data link control, the primary station is the data station that supports the primary control functions of the data link, generates commands to be transmitted, and interprets received responses. Specific responsibilities assigned to the primary station include initialization of control signal interchange, organization of data flow and actions regarding error control and error recovery functions. The secondary station executes data link control functions as (74)by the primary station, interprets received commands and (75) responses to be transmitted.A．performanceB．functionalC．capacityD．quality
Most IP layer-based proxy mechanisms，such as network address translation (NAT)，only supportuni-directional proxy，from the internal network to external network(the Interned．The proxvestablishes the communication channel by (71) IP addresses．The IP addresses must be (72) ．These proxy mechanisms prevent applications that must establish return data channels from establishing their data channels，such as，multimedia applications．IP layer-based proxy mechanisms need additional software (73) for each application that uses (74) channels． SOCKS identifies communication targets through domain names，overcoming the restriction of Usina private IP addresses．SOCKS can use domain names to establish communication between separate LANs，with (75) IP addresses．(66)A．manufacturingB．manipulatingC．conductD．implement
For each blank, choose the best answer from the four choices and write down on the answer'sheet.(66)is a protocol that a host uses to inform. a router when it joins or leaves an Internet multicast group.(67)is an error detection code that most data communication networks use.(68)is an interior gateway protocol that uses a distance vector algorithm to propagate routing information.(69)is a transfer mode in which all types of information are organized into fixed form. cells on an asynchronous or non-periodic basis over a range of media.(70)is an identifier of a web page.A．ICMPB．SMTPC．IGMPD．ARP
Which of the following networks would MOST likely require EGP routing?() A. Networks that use OSPF in addition to static routesB. Networks with classless Internet domain routingC. Networks with multiple ISPsD. Networks that use encryption
is an error detection code that most data communication networks use。A．Cyclic Redundancy CodeB．Manchester CodeC．Huffman CodeD．4B/5B Code
Error detection schemes check errors in the data packets by reading which field frame IDs?() A.MTUB.PDUC.FCSD.FlagE.MACF.BRI
根据下面的文字资料回答 68～72 题For each blank．choose the best answerfrom the four choices and write down on the answer sheet．（ 1 ）is a protocol that a host uses toinform. a router when it joins or leaves an Internet muhicast group．（ 2 ） is an error detection code that most data communication networks use．（ 3 ）is an interior gateway protocol that uses a distance vector algorithm topropagate routing information．（ 4 ）is a transfer mode in which all types of information ate organized intofixed form. cells onan asynchronous or non－periodic basis over a range of media．（ 5 ）is an identifier of a web page．第68题：文中（ 1 ）处正确的答案是（ ）。A．SMTPB．ICMPC．RARPD．IGMP
Which of the following networks would MOST likely require EGP routing?（）A、Networks that use OSPF in addition to static routesB、Networks with classless Internet domain routingC、Networks with multiple ISPsD、Networks that use encryption
Two autonomous networks who wish to exchange routing data should use which of the following protocols?（）A、OSPFB、BGPC、EIGRPD、IS-IS
For what two purposes does the Ethernet protocol use physical addresses？（）A、to uniquely identify devices at Layer 2B、to allow communication with devices on a different networkC、to differentiate a Layer 2 frame from a Layer 3 packetD、to establish a priority system to determine which device gets to transmit firstE、to allow communication between different devices on the same networkF、to allow detection of a remote device when its physical address is unknown
Error detection schemes check errors in the data packets by reading which field frame IDs?（）A、MTUB、PDUC、FCSD、FlagE、MACF、BRI
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单选题Error detection schemes check errors in the data packets by reading which field frame IDs?（）AMTUBPDUCFCSDFlagEMACFBRI
单选题Which of the following networks would MOST likely require EGP routing?（）ANetworks that use OSPF in addition to static routesBNetworks with classless Internet domain routingCNetworks with multiple ISPsDNetworks that use encryption
单选题Two autonomous networks who wish to exchange routing data should use which of the following protocols?（）AOSPFBBGPCEIGRPDIS-IS
单选题Which technique retrieves the error number when explicit DML fails?（）ASQLCODE in an On-Error trigger. BSQLCODE in an exception handler. CDBMS_ERROR_CODE in an On-Error trigger. DDBMS_ERROR_CODE in an exception handler.