多选题Which two statements about the diffserv model are true？（）Aa class can be inentified as a single application .multiple applications with similar service nees.or be based on the source or destination ip addresses.Ba drawback of the diffserv model is that

题目
多选题
Which two statements about the diffserv model are true？（）
A

a class can be inentified as a single application .multiple applications with similar service nees.or be based on the source or destination ip addresses.

B

a drawback of the diffserv model is that it does not provide backward compatibility with devices that can only use the tos field.

C

diffserv uses the diffserv field in the MAC header to mark frames into behavior aggregates（BAs）

D

the diffserv field occupies the same eight bits of the mac header that were previously used for the tos field.

E

the first six high-order bits of the diffserv field are used to identify the resource reservation protocol（RSVP） value .

F

the primary goal of diffserv is scalabilty.

相似考题

1.System analysis is traditionally done top-down using structured analysis based on（ ）.Object-oriented analysis focuses on creation of models.The three types of theanalysis model are（请作答此空）.There are two substages of object-oriented analysis.（ ）focuses on real-world things whose semantics the application captures.The object constructedin the requirement analysis shows the（ ）of the real-world system and organizes it intoworkable pieces.（ ）addresses the computer aspects of the application that are visible tousers.The objects are those which can be expected to vary from time to time quite rapidly.A.function model，class model and state model B.class model，interaction model and state model C.class model，interaction model and sequence model D.function model，interaction model and state model

2.Which two models are the models of DiffServ-Award traffic Engineering？（）A、Class-based ModelB、Maximum Allocation ModelC、Russian Doll ModelD、Global Tunnel ModelE、Policy-based Model

3.Which three statements are true about the application of QoS models？ （）A、 The DiffServ model requires applications to signal the network with QoS requirements.B、 The DiffServ model can be used to deliver QoS based upon IP precedence， or source and destination addresses.C、 The DiffServ model requires RSVP.D、 The best effort model is suitable for applications such as file transfer and e-mailE、 The IntServ model requires applications to signal the network with QoS requirements.F、 The IntServ model attempts to deliver a level of service based on the QoS specified by each packet

4.System analysis is traditionally done top-down using structured analysis based on____.Object-oriented analysis focuses on creation of models.The three types of the analysis model are__请作答此选项__.There are two substages of object-oriented analysis.____focuses on real-world things whose semantics the application captures.The object constructed in the requirement analysis shows the____of the real-world system and organizes it into workable pieces.____addresses the computer aspects of the application that are visible to users.The objects are those which can be expected to vary from time to time quite rapidly.A.function model,class model and state model B.class model,interaction model and state model C.class model,interaction model and sequence model D.function model,interaction model and state model

参考答案和解析
正确答案： A,C
解析： 暂无解析
更多“多选题Which two statements about the diffserv model are true？（）Aa class can be inentified as a single application .multiple applications with similar service nees.or be based on the source or destination ip addresses.Ba drawback of the diffserv model is that”相关问题

  • 第1题：

    Which two statements about the DiffServ  model are true？（）

    • A、a class can be identified as a single application， multiple applications with similar service needs，or be based on the source or destination IP address
    • B、a drawback of the DiffServ field in the MAC header to mark frames into behavior aggregates （BAs）
    • C、DiffServ uses the DiffServ field in the MAC header to mark frames into behavior
    • D、the DiffServ field occupies the same eight bits of the MAC header that were previously used for the ToS field
    • E、the first six high-order bits of the DiffServ field are used to identify the Resource Reservation Protocol （RSVP） value
    • F、the primary goal of DiffServ is scalability

    正确答案:A,F

  • 第2题：

    Which two statements are true about RSVP and the InServ QoS model？（）

    • A、a drawback of implementing RSVP is the requirement to migrate to a supporting routing protocol
    • B、RSVP uses DSCP to signal QoS requirements to routers 
    • C、RSVP is a routing protocol
    • D、RSVP is an IP protocol that uses IP protocol ID 46， and TCP/UDP ports 3455
    • E、RSVP specifically provides a level of service for rate-sensitive and delay-sensitive traffic
    • F、the flow-based approach of RSVP is ideal for large， scalable implementations such as the public internet

    正确答案:D,E

  • 第3题：

    What are two characteristics of the DiffServ model？（）

    • A、service guarantee
    • B、traffic that is divided into classes
    • C、not scalable to large implementations
    • D、QoS mechanisms that are used without prior signaling
    • E、applications that signal their particular QoS and bandwidth requirements

    正确答案:B,D

  • 第4题：

    Which two statements about the DiffServ model are true？ （）

    • A、 A class can be identified as a single application， multiple applications with similar service needs， or be based on the source or destination IP addresses.
    • B、 A drawback of the DiffServ model is that it does not provide backward compatibility with devices that can only use the ToS field.
    • C、 DiffServ uses the DiffServ field in the MAC header to mark frames into behavior aggregates （BAs）. 
    • D、 The DiffServ field occupies the same eight bits of the MAC header that were previously used for the ToS field.
    • E、 The first six high-order bits of the DiffServ field are used to identify the Resource Reservation Protocol （RSVP） value.
    • F、 The primary goal of DiffServ is scalability.

    正确答案:A,F

  • 第5题：

    Which three statements are true about the appliance of QoS models？（）

    • A、the DiffServ model requires applications to signal the network with QoS requirements
    • B、the DiffServ model can be used to deliver QoS based upon IP precedence， or source and destination addresses
    • C、the DiffServ model requires RSVP
    • D、the best effort model is suitable for applications such as file transfer and e-mail
    • E、the IntServ model requires applications to signal the network with QoS requirements
    • F、the IntServ model model attempts to deliver a level of service based on the QoS specified by each packet

    正确答案:B,D,E

  • 第6题：

    多选题
    Which two statements are true about RSVP and the InServ QoS model？（）
    A

    a drawback of implementing RSVP is the requirement to migrate to a supporting routing protocol

    B

    RSVP uses DSCP to signal QoS requirements to routers

    C

    RSVP is a routing protocol

    D

    RSVP is an IP protocol that uses IP protocol ID 46， and TCP/UDP ports 3455

    E

    RSVP specifically provides a level of service for rate-sensitive and delay-sensitive traffic

    F

    the flow-based approach of RSVP is ideal for large， scalable implementations such as the public internet


    正确答案： D,F
    解析： 暂无解析

  • 第7题：

    多选题
    Which two statements about the DiffServ  model are true？（）
    A

    a class can be identified as a single application， multiple applications with similar service needs，or be based on the source or destination IP address

    B

    a drawback of the DiffServ field in the MAC header to mark frames into behavior aggregates （BAs）

    C

    DiffServ uses the DiffServ field in the MAC header to mark frames into behavior

    D

    the DiffServ field occupies the same eight bits of the MAC header that were previously used for the ToS field

    E

    the first six high-order bits of the DiffServ field are used to identify the Resource Reservation Protocol （RSVP） value

    F

    the primary goal of DiffServ is scalability


    正确答案： F,E
    解析： 暂无解析

  • 第8题：

    多选题
    Which two statements about the DiffServ model are true？ （）
    A

    A class can be identified as a single application， multiple applications with similar service needs， or be based on the source or destination IP addresses.

    B

    A drawback of the DiffServ model is that it does not provide backward compatibility with devices that can only use the ToS field.

    C

    DiffServ uses the DiffServ field in the MAC header to mark frames into behavior aggregates （BAs）.

    D

    The DiffServ field occupies the same eight bits of the MAC header that were previously used for the ToS field.

    E

    The first six high-order bits of the DiffServ field are used to identify the Resource Reservation Protocol （RSVP） value.

    F

    The primary goal of DiffServ is scalability.


    正确答案： C,B
    解析： 暂无解析

  • 第9题：

    多选题
    Which three statements are true about the application of QoS models？ （）
    A

    The DiffServ model requires applications to signal the network with QoS requirements.

    B

    The DiffServ model can be used to deliver QoS based upon IP precedence， or source and destination addresses.

    C

    The DiffServ model requires RSVP.

    D

    The best effort model is suitable for applications such as file transfer and e-mail

    E

    The IntServ model requires applications to signal the network with QoS requirements.

    F

    The IntServ model attempts to deliver a level of service based on the QoS specified by each packet


    正确答案： A,C
    解析： 暂无解析

  • 第10题：

    多选题
    Which three statements are true about the appliance of QoS models？（）
    A

    the DiffServ model requires applications to signal the network with QoS requirements

    B

    the DiffServ model can be used to deliver QoS based upon IP precedence， or source and destination addresses

    C

    the DiffServ model requires RSVP

    D

    the best effort model is suitable for applications such as file transfer and e-mail

    E

    the IntServ model requires applications to signal the network with QoS requirements

    F

    the IntServ model model attempts to deliver a level of service based on the QoS specified by each packet


    正确答案： F,C
    解析： 暂无解析

  • 第11题：

    多选题
    Which two statements about an IDS are true？（）
    A

    The IDS is in the traffic path.

    B

    The IDS can send TCP resets to the source device.

    C

    The IDS can send TCP resets to the destination device.

    D

    The IDS listens promiscuously to all traffic on the network.

    E

    Default operation is for the IDS to discard malicious traffic.


    正确答案： E,A
    解析： 暂无解析

  • 第12题：

    多选题
    Which two models are the models of DiffServ-Aware Traffic Engineering？ （）
    A

    Policy-based Model

    B

    Class based Model

    C

    Russian Doll Model

    D

    Global Tunnel Model

    E

    Maximum Allocation Model


    正确答案： B,E
    解析： 暂无解析

  • 第13题：

    Which two statements about the diffserv model are true？（）

    • A、a class can be inentified as a single application .multiple applications with similar service nees.or be based on the source or destination ip addresses.
    • B、a drawback of the diffserv model is that it does not provide backward compatibility with devices that can only use the tos field.
    • C、diffserv uses the diffserv field in the MAC header to mark frames into behavior aggregates（BAs）
    • D、the diffserv field occupies the same eight bits of the mac header that were previously used for the tos field.
    • E、the first six high-order bits of the diffserv field are used to identify the resource reservation protocol（RSVP） value .
    • F、the primary goal of diffserv is scalabilty.

    正确答案:A,F

  • 第14题：

    Which two statements about the best effort model for QoS are true？（）

    • A、delay sensitive packets are given preferential treatment
    • B、the default policy identifies a delay sensitive class and default class
    • C、the default policy identifies a delay sensitive class， best effort class， and default class
    • D、the model is highly scalable
    • E、the model is still predominant on the internet F the model provides guaranteed service

    正确答案:D,E

  • 第15题：

    Which two models are the models of DiffServ-Aware Traffic Engineering？ （）

    • A、Policy-based Model
    • B、Class based Model
    • C、Russian Doll Model
    • D、Global Tunnel Model
    • E、Maximum Allocation Model

    正确答案:C,E

  • 第16题：

    Which two statements about the DiffServ QoS model are true？（）

    • A、DiffServ requires RSVP to set up a path through the network to accommodate the requested QoS.
    • B、Network traffic is identified by class， and the level of service is chosen for each class.
    • C、The DiffServ model relies on a fairly simple mechanism to provide QoS over a wide range of equipment.
    • D、RSVP enables the DiffServ model to provide end-to-end QoS.
    • E、The DiffServ model is more scalable than the IntServ model.
    • F、The flow-based approach of the DiffServ model is ideal for large scalable implementations such as the public Internet.

    正确答案:B,E

  • 第17题：

    多选题
    Which three statements about subqueries are true?（）
    A

    A single row subquery can retrieve only one column and one row.

    B

    A single row subquery can retrieve only one row but many columns.

    C

    A multiple row subquery can retrieve multiple rows and multiple columns.

    D

    A multiple row subquery can be compared by using the “>” operator.

    E

    A single row subquery can use the IN operator.

    F

    A multiple row subquery can use the “=” operator.


    正确答案： A,D
    解析： 暂无解析

  • 第18题：

    多选题
    Which two statements about VACLs on Cisco Nexus 7000 Series Switches are true？ （）
    A

    A single VACL can be shared across two or more VDCs.

    B

    Use of VACLs requires no special license to be installed.

    C

    VACLs make use of IP or MAC ACLs.

    D

    Only options drop and forward are permitted.


    正确答案： C,A
    解析： 暂无解析

  • 第19题：

    多选题
    Which two statements about the DiffServ QoS model are true？（）
    A

    DiffServ requires RSVP to set up a path through the network to accommodate the requested QoS.

    B

    Network traffic is identified by class， and the level of service is chosen for each class.

    C

    The DiffServ model relies on a fairly simple mechanism to provide QoS over a wide range of equipment.

    D

    RSVP enables the DiffServ model to provide end-to-end QoS.

    E

    The DiffServ model is more scalable than the IntServ model.

    F

    The flow-based approach of the DiffServ model is ideal for large scalable implementations such as the public Internet.


    正确答案： C,B
    解析： 暂无解析

  • 第20题：

    多选题
    Which two statements about the diffserv model are true？（）
    A

    a class can be inentified as a single application .multiple applications with similar service nees.or be based on the source or destination ip addresses.

    B

    a drawback of the diffserv model is that it does not provide backward compatibility with devices that can only use the tos field.

    C

    diffserv uses the diffserv field in the MAC header to mark frames into behavior aggregates（BAs）

    D

    the diffserv field occupies the same eight bits of the mac header that were previously used for the tos field.

    E

    the first six high-order bits of the diffserv field are used to identify the resource reservation protocol（RSVP） value .

    F

    the primary goal of diffserv is scalabilty.


    正确答案： A,B
    解析： 暂无解析

  • 第21题：

    多选题
    Which two statements about the best effort model for QoS are true？（）
    A

    delay sensitive packets are given preferential treatment

    B

    the default policy identifies a delay sensitive class and default class

    C

    the default policy identifies a delay sensitive class， best effort class， and default class

    D

    the model is highly scalable

    E

    the model is still predominant on the internet F the model provides guaranteed service


    正确答案： D,A
    解析： 暂无解析

  • 第22题：

    多选题
    Which two statements are true about Oracle Real Applications Insight ？（）
    A

    it provides enhanced visibility across the entire application infrastructure

    B

    it provides a set of management tools that enable automation of configuraion

    C

    it significantly increases the performance of Web-based applications with no code change

    D

    it dramatically reduces costs associated with diagnostics， configuration， and deployment on production servers


    正确答案： B,A
    解析： 暂无解析

  • 第23题：

    多选题
    Which tow statements are most correct regarding opt-in models?（）
    A

    A based opt-in model uses virtualized identifiers

    B

    A based opt-in model uses hardware values as identifiers

    C

    A logical server opt-in model uses virtualized identifiers

    D

    A logical server opt-in model uses hardware values as identifiers


    正确答案： C,A
    解析： 暂无解析

  • 第24题：

    多选题
    Which two models are the models of DiffServ-Award traffic Engineering？（）
    A

    Class-based Model

    B

    Maximum Allocation Model

    C

    Russian Doll Model

    D

    Global Tunnel Model

    E

    Policy-based Model


    正确答案： D,B
    解析： 暂无解析

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