Data transfer is slow between the source and destination. The quality of service requested by the transport layer in the OSI reference model is not being maintained. To fix this issue, at which layer should the troubleshooting process begin?（）A. presentat

题目

Data transfer is slow between the source and destination. The quality of service requested by the transport layer in the OSI reference model is not being maintained. To fix this issue, at which layer should the troubleshooting process begin?（）

A. presentation

B. session

C. transport

D. network

E. physical

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3.根据下面的文字资料回答 66～70 题In low-speed network，it is usually adequate to wait for congestion to occur andthen react to it by telling the source of packets to slow down．In high-speednetworks，this approach oftenworks poorly，because in the（ 1 ）between sending thenotification and notification arriving at the source，thousands ofadditional（ 2 ）may aITive．In ATM network，a major tool forpreventing（ 3 ）is（ 4 ）control．when a host wants a new virtual（ 5 ），it mustdescribe the traffic to be offered and the service expected．第66题：文中（ 1 ）处正确的答案是（ ）。A．intervalB．timeC．slotD．delay

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参考答案和解析
参考答案：D
更多“Data transfer is slow between the source and destination. The quality of service requested ”相关问题

  • 第1题：

    ●Thebasic concept of a data (72) is the difference between data and information.

    (72) A．warehouse

    B．storage

    C．base

    D．service


    正确答案：A
    【解析】数据仓库的基本概念就是数据和信息的不同。

  • 第2题：

    (iii) assesses TSC in terms of financial performance, competitiveness, service quality, resource utilisation,

    flexibility and innovation and discusses the interrelationships between these terms, incorporating

    examples from within TSC; and (10 marks)


    正确答案：
    (iii) The terms listed may be seen as representative of the dimensions of performance. The dimensions may be analysed into
    results and determinants.
    The results may be measured by focusing on financial performance and competitiveness. Financial performance may
    be measured in terms of revenue and profit as shown in the data in the appendix of the question in respect of TSC. The
    points system in part (a) of the answer shows which depots have achieved or exceeded the target set. In addition,
    liquidity is another aspect of the measurement of financial performance. The points total in part (a) showed that
    Leonardotown and Michaelangelotown depots appear to have the best current record in aspects of credit control.
    15
    Competitiveness may be measured in terms of sales growth but also in terms of market share, number of new
    customers, etc. In the TSC statistics available in (a) we only have data for the current quarter. This shows that three of
    the four depots listed have achieved increased revenue compared to target.
    The determinants are the factors which may be seen to contribute to the achievement of the results. Quality, resource
    utilisation, flexibility and innovation are cited by Fitzgerald and Moon as examples of factors that should contribute to
    the achievement of the results in terms of financial performance and competitiveness. In TSC a main quality issue
    appears to be customer care and service delivery. The statistics in the points table in part (a) of the answer show that
    the Raphaeltown depot appears to have a major problem in this area. It has only achieved one point out of the six
    available in this particular segment of the statistics.
    Resource utilisation for TSC may be measured by the level of effective use of drivers and vehicles. To some extent, this
    is highlighted by the statistics relating to customer care and service delivery. For example, late collection of consignments
    from customers may be caused by a shortage of vehicles and/or drivers. Such shortages could be due to staff turnover,
    sickness, etc or problems with vehicle maintenance.
    Flexibility may be an issue. There may, for example, be a problem with vehicle availability. Possibly an increased focus
    on sources for short-term sub-contracting of vehicles/collections/deliveries might help overcome delay problems.
    The ‘target v actual points system’ may be seen as an example of innovation by the company. This gives a detailed set
    of measures that should provide an incentive for improvement at all depots. The points system may illustrate the extent
    of achievement/non-achievement of company strategies for success. For example TSC may have a customer care
    commitment policy which identifies factors that should be achieved on a continuing basis. For example, timely collection
    of consignments, misdirected consignments re-delivered at no extra charge, prompt responses to customer claims and
    compensation for customers.

  • 第3题：

    In the open systems interconnection (OSI) reference model, "layer" means one of seven conceptually complete,(71) arranged groups of services, functions, and protocols, that extend across all open systems.Application layer provides means for the application(72) to access the OSI environment. Presentation layer provides for the selection of a common syntax for representing data.(73) layer provides the means necessary for cooperating presentation entities to organize and synchronize their dialog and to manage their data exchange. Transport layer provides a reliable end-to-end data transfer service. Network layer provides for the entities in the transport layer the means for transferring blocks of data, by(74) and switching through the network between the open systems in which those entities reside. Data link layer provides services to transfer data between network layer entities. Physical layer provides the mechanical, electrical, functional, and procedural means to establish, maintain and(75) physical connections for transfer of bits over a transmission medium.

    A．rankly

    B．levelly

    C．layered

    D．hierarchically


    正确答案：D

  • 第4题：

    The basic concept of a data(72)is the difference between data and information.

    A．warehouse

    B．storage

    C．base

    D．service


    正确答案：A
    解析：数据仓库的基本概念就是数据和信息的不同。

  • 第5题：

    建立Web Service应该使用下面哪个工具：（）。

    • A、Query As A Web Service
    • B、Web Intelligence Rich Client
    • C、Data Source Migration Wizard
    • D、Universe Builder

    正确答案:D

  • 第6题：

    When exporting metadata for the transportable tablespaces， what is the correct next step after confirming endian format？（）

    • A、 Export the tablespaces using data pump.
    • B、 Determine if the transportable set is self-contained.
    • C、 Convert the datafiles using RMAN.
    • D、 Copy the datafiles from source to destination.

    正确答案:B

  • 第7题：

    Which of the following is the definition of CAS latency？（）

    • A、 CAS latency is the ratio between the column access time and the clock cycle time.
    • B、 CAS latency is the ratio between the row access time and the clock cycle time.
    • C、 CAS latency is the ratio between the column access time and the data burst transfer time.
    • D、 CAS latency is the ratio between the row access time and the data burst transfer time.

    正确答案:A

  • 第8题：

    单选题
    以下不是RANAP SERVICE的是（）
    A

    General control services

    B

    Notification services

    C

    Dedicate dcontrol services

    D

    Connectionless data transfer service


    正确答案： C
    解析： 暂无解析

  • 第9题：

    单选题
    Which of the following is the definition of CAS latency？（）
    A

     CAS latency is the ratio between the column access time and the clock cycle time.

    B

     CAS latency is the ratio between the row access time and the clock cycle time.

    C

     CAS latency is the ratio between the column access time and the data burst transfer time.

    D

     CAS latency is the ratio between the row access time and the data burst transfer time.


    正确答案： A
    解析： 暂无解析

  • 第10题：

    单选题
    Data transfer is slow between the source and destination. The quality of service requested by the transport layer in the OSI reference model is not being maintained. To fix this issue, at which layer should the troubleshooting process begin?（）
    A

    presentation

    B

    session

    C

    transport

    D

    network

    E

    physical


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    You design a Business Intelligence （BI） solution by using SQL Server 2008. You create a SQL Server 2008 Reporting Services （SSRS） solution by using SQL Server 2008. Several reports on the server use a shared data source named DSProduction. You modify an existing report that uses the DSProduction data source. After deployment， the modified report must use an alternate data source. You need to prevent the modified report from affecting other reports. What should you do？（）
    A

     Update the connection string of the DSProduction shared data source to point to the alternate data source.

    B

     Update the modified report to use a report-specific data source. Update the connection string of the report-specific data source to point to the alternate data source.

    C

     Create a new shared data source named DSProduction in the same folder as that of the modified report. Update the connection string of the new shared data source to point to the alternate data source.

    D

     Disable the DSProduction data source. Update the modified report to use a report-specific data source. Update the connection string of the report-specific data source to point to the alternate data source.


    正确答案： D
    解析： 暂无解析

  • 第12题：

    单选题
    You design a Business Intelligence （BI） solution by using SQL Server 2008. You design a SQL Server 2008 Analysis Services （SSAS） solution. Customer data is stored in the tables named CustomerDetails and CustomerContact. The solution uses the following two data sources from two different servers： ·Contoso that accesses the CustomerDetails table ·ContosoCRM that accesses the CustomerContact table You plan to create a dimension named DimCustomer to analyze customer data. You need to ensure that the DimCustomer dimension represents the tables as a snowflake schema to include attributes from the two tables. What should you do？（）
    A

     Create a data source view named DsvContoso that is associated with the two data sources and add the tables to the data source view.

    B

     Create a data source view named DsvContoso that is associated with the two data sources and create a named query in the data source view to merge the tables.

    C

     Create a data source view named DsvCustomer that is associated with the Contoso data source and add the CustomerDetails table to the data source view.Create a data source view named DsvCustomerContact that is associated with the ContosoCRM data source and add the CustomerContact table to the data source view.

    D

     Create a data source view named DsvCustomer that is associated with the Contoso data source and create a named query in the data source view to select data from the CustomerDetails table.Create a data source view named DsvCustomerContact that is associated with the ContosoCRM data source and create a named query in the data source view to select data from the CustomerContact table.


    正确答案： D
    解析： 暂无解析

  • 第13题：

    Service(71)Architecture aims to provide a model for the creation of service components in a wide range of languages and a model for assembling service components into a business solution -activities which are at the heart of building applications using a(72)architecture.

    Service Data Objects aims to provide consistent means of handling(73)within applications, whatever its source or(74)may be. SDO provides a way of unifying data handling for databases and for services. SDO also has mechanisms for the handling of data while(75)from its source.

    A．Oriented

    B．Level

    C．Component

    D．Conference


    正确答案：C

  • 第14题：

    In low-speed network，it is usually adequate to wait for congestion to occur and then react to it bytelling the source of packets to slow down．In high-speed networks，this approach often works poorly，because in the(71) between sending the notification and notification arriving at the source，thousands of additional(72) may arrive．In ATM network，a major tool for preventing(73)is(74)control．When a host wants a new virtual(75)，it must describe the traffic to be offeredand the service expected．

    (69)

    A．interval

    B．time

    C．slot

    D．delay


    正确答案：A

  • 第15题：

    In low - speed network ,it is usually adequate to wait for congestion to occur and then react to it by telling the source of packets to slow down. In high - speed networks, this approach often works poorly, because in the(71)between sending the notification and notification arriving at the source, thousands of additional(72)may arrive. In ATM network , a major tool for preventing(73)is(74)control. When a host wants a new virtual(75),it must describe the traffic to be offered and the service expected.

    A．interval

    B．time

    C．slot

    D．delay


    正确答案：A
    解析：interval：时间间隔

  • 第16题：

    You are the administrator of a SQL Server 2000 computer. The server contains a database that stores financial data. You want to use Data Transformation Services packages to import numeric data from other SQL server computers. The precision and scale values of this data are not defined consistently on the other servers.

    You want to prevent any loss of data during the import operations. What should you do?

    A．Use the ALTER COLUMN clause of the ALTER TABLE statement to change data types in the source tables. Change the data types so that they will use the lowest precision and scale values of the data that will be transferred.

    B．Use the ALTER COLUMN clause of the ALTER TABLE statement to change data types in the destination tables. Change the data types to reflect the highest precision and scale values involved in data transfer.

    C．Set a flag on each DTS transformation to require an exact match between source and destination columns.

    D．Set the maximum error count for each DTS transformation task equal to the number of rows of data you are importing. Use an exception file to store any rows of data that generate errors.

    E．Write Microsoft ActiveX script. for each DTS transformation. Use the script. to recast data types to the destinations precision and scale values.


    正确答案：B
    解析：Explanation: The ALTER COLUMN clause of the ALTER TABLE statement can be used to change the definition of a column and can be used to alter the precision and scale values of the data types. The destination precision should be changed so no data would be lost. The transformation to a data type with higher precision is automatic and would not require any coding.

    Note: The precision of the data type refers to the number of digits in a number while the scale is the number of digits to the right of the decimal point in a number. Thus the number 702.85 has a precision of 5 and a scale of 2. The default maximum precision of numeric and decimal data types is 38.

    Incorrect Answers:
    A: The ALTER COLUMN clause of the ALTER TABLE statement can be used to change the definition of a column and can be used to alter the precision and scale values of the data types. However, we want to prevent any loss of data therefore we need to ensure that the data being imported correlates with the definition of the destination column. If it does not, any constraint that might exist on the destination column will prevent the data from being inserted.

    C: Setting DTS transformation to require an exact match between source and destination columns refers to the data in the columns.

    D: When the a maximum error count value for a DTS transformation task specifies the sum of row-level errors detected by the Transform. Data task and batch failures. When the Max error count value is exceeded, DTS task execution is terminated. Because rows containing errors detected by the DTS transformation task are discarded before batch submission, these errors do not trigger nor count as batch failures. Errors caught at the destination will fail the batch and add one to the error count regardless of how many rows are in the batch.

    E: Recasting data types to the destinations precision could result in loss of data. The destination precision should be changed so no data would be lost.

    Note: The capabilities of a Data Transformation Service package can be extended by using
    Microsoft ActiveX scripts that implement the objects, properties, methods, and collections of the DTS object model. With ActiveX scripts the data can be formatted and transformed as it is copied from its source to the destination location.

    An ActiveX script. transformation applies to tasks that work on the source data on a row-by-row basis and can be used to replace a two-digit state code in the source data with the legal abbreviation of the state in the destination data; set columns to a default of spaces, validate important columns in the source data and skip records that contain invalid data to prevent them from being copied to the destination, and alter the precision and scale values of data as the data copied from the source to the destination.

  • 第17题：

    What are two benefits of control plane policing？（）

    • A、protection against denial of service （DoS） attacks at infrastructure routers and switches
    • B、 protection against known worm attacks in routers and switches
    • C、quality of service （QoS） control for packets that are sourced from the data plane of Cisco routers and switches
    • D、quality of service control （QoS） for packets that are destined to the control plane of Cisco routers and switches
    • E、quality of service （QoS） control for packets that are destined to the data plane of Cisco routers and switches

    正确答案:A,D

  • 第18题：

    Data transfer is slow between the source and destination. The quality of service requested by the transport layer in the OSI reference model is not being maintaineD.To fix this issue, at which layer should the troubleshooting process begin?（）

    • A、presentation
    • B、session
    • C、transport
    • D、network
    • E、physical

    正确答案:D

  • 第19题：

    Why is a data source required？（）

    • A、 Data source contains data required for impact event enrichment.
    • B、 Data source contains data required for calculating server downtime.
    • C、 Data source contains data required for services and other related service information.
    • D、 Data source contains data required for LDAP configurations， including login attempts and errors.

    正确答案:C

  • 第20题：

    单选题
    Which of the following statements is correct concerning heat transfer?（）
    A

    Heat is given off from a high temperature region known as a heat sink

    B

    Heat transfer rate is affected most by the size of the heat sink involved

    C

    Heat transfer rate is affected most by the temperature difference between the heat source and the heat sink

    D

    Heat transfer by radiation will occur only by mass motion of a fluid substance


    正确答案： C
    解析： 暂无解析

  • 第21题：

    单选题
    Why is a data source required？（）
    A

     Data source contains data required for impact event enrichment.

    B

     Data source contains data required for calculating server downtime.

    C

     Data source contains data required for services and other related service information.

    D

     Data source contains data required for LDAP configurations， including login attempts and errors.


    正确答案： C
    解析： 暂无解析

  • 第22题：

    单选题
    When exporting metadata for the transportable tablespaces， what is the correct next step after confirming endian format？（）
    A

     Export the tablespaces using data pump.

    B

     Determine if the transportable set is self-contained.

    C

     Convert the datafiles using RMAN.

    D

     Copy the datafiles from source to destination.


    正确答案： B
    解析： 暂无解析

  • 第23题：

    单选题
    Which Coherence caching pattern matches the sequence of events ？（）  1. Data is requested from cache  2. The requested data does not exist in the cache （cache miss）  3. The Coherence cache store is used to red data from the back-end persistent data source， and placed in ther cache  4. Data requested from the cache is returned to the caller
    A

     read through

    B

     write through

    C

     refresh ahead

    D

     write behind


    正确答案： B
    解析： 暂无解析

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