The concept of NAVTEX is of a（）system for the broadcast and reception of MSI. -题库考试答案搜索网

The concept of NAVTEX is of a（）system for the broadcast and reception of MSI.

单选题

2022-08-10 17:16

A、complete service
B、partial controlled
C、quite new
D、total co-ordinated

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正确答案

D

试题解析

标签： GMDSS

感兴趣题目

In information theory, "information" is regarded as knowledge which reduces or removes(71) about the occurrence of a specific event from a given set of possible events. The concept "event" is to be understood as used in the theory of probability. For instance, an event may be the occurrence of a(72) character or word in a given message or in a given position of a message.In communication theory, channel is defined as that part of a communication system that connects the message source with the message sink. An encoder may be inserted between the message source and the input to the channel, and a(73) between the output of the channel and the message sink. Generally, these two units are not considered as being parts of the channel. In certain cases, however, they may be considered as pans of the message source and message sink,(74) In information theory(75) to Shannon, the channel can be characterized by the set of conditional probabilities of occurrence of all the messages received at the message sink when a given message emanates from the message source.

The basic concept of GMDSS is（）.

The terrestrial system of GMDSS consists of（）.

When it is necessary to open a refrigeration system for repairs and the system will be open for more than a few minutes, the open ends of the system should be （）.

Which of the following is a required GMDSS function?

The Border Gateway Protocol(BGP)is an interautonomous system【S1】protoco1．The primary function of a BGP speaking system is to exchange network【S2】information withother BGP system．This network reachability information includes information on the list of Auton0．mous System(ASs)that reachability information traverses．BGP一4 provides a new set of mecha-nisms for supposing【S3】interdomain routing．These mechanisms include support for adver-tising an IP【S4】and eliminate the concept of network class within BGP．BGP-4 also intro-duces mechanisms that allow aggregation of routes，including【S5】of AS paths．These chan-ges provide support for the proposed supernettting schem【S1】

（1） analysis emphasizes the drawing of pictorial system models to document and validate both existing and/or proposed systems．Ultimately, the system models become the（2） for designing and constructing an improved system. （3） is such a technique. The emphasis in this technique is process-centered．Systems analysts draw a series of process models called （4） . （5） is another such technique that integrates data and process concerns into constructs called objects.

The concept of NAVTEX is of a（）system for the broadcast and reception of MSI.

【With the 4G telecommunications systems now starting to be deployed,people are looking towards the development of 5th generation or 5G technology services.Although the deployment of any wireless or cellular system take years,development of the 5G technology systems is being investigated.The new 5G technologies will need to be chosen developed and perfected to enable timely and reliable deployment. The new 5th generation,5G technology for cellular systems will probably start to come to fruition around 2020. The current status of the 5G technology for cellular systems is very much in the early development stages.Many companies are looking into the technologies that could be used to become part of the system.In addition to this,a number of universities have set up 5G research units focused on developing the technologies for 5G. In addition, the standards bodies,particularly 3GPP are aware of the development but are not actively planing the 5G systems yet.Many of the technologies to be used for 5G will start to appear in the systems used for 4G and then as the new 5G cellular system starts to formulate in a more concrete manner,they will be incorporated into the new 5G cellular system. The major issue with 5G technology is that there is such an enormously wide variation in the requirements:super fast downloads to small data requirements for IoT than any one system will not be able to meet these needs.Accordingly a layer approach is likely to be adopted.As one commentator stated:5G is not just a mobile technology.It is ubiquitous access to high & low data rate services.】 Based on the paragraph above,at present,5G technology for cellular systems （）, many of the technologies to be used for 5G （） in the systems used for 4G,the major issue facing with 5G technology is （）.

If the coolant temperature of a closed cooling water system for a diesel engine gradually increases, the trouble usually is （）

If the coolant temperature of a closed cooling water system for a diesel enginegradually increases, the trouble usually is( ).

●A (68) is a feature of the system or adescription of something the system is capable of doing in order to fulfill the system's purpose.

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