Which statements are true regarding ISDN channels?()A. Each B channel can transmit up to 64 kbpsB. The ISDN B channel carries voice or dataC. The ISDN D channel transmits control information.D. The D channel transmission rate varies depending on the servi

题目
Which statements are true regarding ISDN channels?()

A. Each B channel can transmit up to 64 kbps

B. The ISDN B channel carries voice or data

C. The ISDN D channel transmits control information.

D. The D channel transmission rate varies depending on the service used.

E. HDLC or PPP can be used to encapsulate D channel information.

相似考题

1.Which of the statements regarding benefit-cost analysis in the Special window are true?A . 1 and 2B . 2 and 3C . 1 and 3D . 1, 2 and 3E . None of the above.

2.Which statements are true regarding the Query Result Cache? ()A. It can be set at the system, session, or table level.B. It is used only across statements in the same session.C. It can store the results from normal as well as flashback queries.D. It can store the results of queries based on normal, temporary, and dictionary tables.

3.Which two statements are true regarding L2TP? ()(Choose two.)A. Tunnels are initiated by the LACB. Tunnels are initiated by the LNSC. By default, subscriber authentication occurs on the LNSD. By default, subscriber authentication occurs on the LAC

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更多“Which statements are true regarding ISDN channels?() ”相关问题

  • 第1题：

    Which of the following statements regarding ISDN are correct?（）

    • A、Each ISDN B channel has transmission speeds of up to 64 kbps.
    • B、The ISDN B channel can carry video, voice or data.
    • C、The ISDN B channel transmission rate varies depending on the service used.
    • D、The ISDN D channel transmits control information.
    • E、The ISDN B channels can be configured with different subnets and encapsulation types when dialer profiles are configured.

    正确答案:A,B,D

  • 第2题：

    Which two statements are true regarding the role of the Routing Engine (RE)?（）

    • A、The RE controls and monitors the chassis.
    • B、The RE manages the Packet Forwarding Engine (PFE).
    • C、The RE receives a copy of the forwarding table from the forwarding plane.
    • D、The RE implements class of service (COS).

    正确答案:A,B

  • 第3题：

    Which statement is true regarding the INTERSECT operator?（）

    • A、It ignores NULL values 
    • B、Reversing the order of the intersected tables alters the result 
    • C、The names of columns in all SELECT statements must be identical 
    • D、The number of columns and data types must be identical for all SELECT statements in the query 

    正确答案:D

  • 第4题：

    Which statements are true regarding ISDN channels?（）

    • A、Each B channel can transmit up to 64 kbps
    • B、The ISDN B channel carries voice or data
    • C、The ISDN D channel transmits control information.
    • D、The D channel transmission rate varies depending on the service used.
    • E、HDLC or PPP can be used to encapsulate D channel information.

    正确答案:A,B,C

  • 第5题：

    Which two statements are TRUE regarding Coherence Indexes ？ （）

    • A、 indexes are maintained by cache entry ownes
    • B、 an application should not suggest an index that another aplication had suggested
    • C、 indexes cannot be sorted
    • D、 each application using Coherence may suggest the same set of indexes when it starts

    正确答案:A,D

  • 第6题：

    Which statements are true regarding the Query Result Cache? （）

    • A、It can be set at the system, session, or table level.
    • B、It is used only across statements in the same session.
    • C、It can store the results from normal as well as flashback queries.
    • D、It can store the results of queries based on normal, temporary, and dictionary tables.

    正确答案:A,C

  • 第7题：

    多选题
    Which two statements are true regarding the ORDER BY clause? （）
    A

    It is executed first in the query execution

    B

    It must be the last clause in the SELECT statement

    C

    It cannot be used in a SELECT statement containing a HAVING clause

    D

    You cannot specify a column name followed by an expression in this clause

    E

    You can specify a combination of numeric positions and column names in this clause


    正确答案： B,C
    解析： 暂无解析

  • 第8题：

    多选题
    Which of the following statements are true regarding the Recycle Bin？（）
    A

    The Recycle Bin is a physical storage area for dropped objects.

    B

    The Recycle Bin is a logical container for dropped objects.

    C

    The Recycle Bin stores the results of a Flashback Drop operation.

    D

    The objects in the Recycle Bin are stored in the tablespace in which they were created.


    正确答案： B,D
    解析： 暂无解析

  • 第9题：

    多选题
    Which two statements are TRUE regarding Coherence Indexes ？ （）
    A

    indexes are maintained by cache entry ownes

    B

    an application should not suggest an index that another aplication had suggested

    C

    indexes cannot be sorted

    D

    each application using Coherence may suggest the same set of indexes when it starts


    正确答案： C,A
    解析： 暂无解析

  • 第10题：

    多选题
    Which two statements are true regarding the role of the Routing Engine (RE)?（）
    A

    The RE controls and monitors the chassis.

    B

    The RE manages the Packet Forwarding Engine (PFE).

    C

    The RE receives a copy of the forwarding table from the forwarding plane.

    D

    The RE implements class of service (COS).


    正确答案： B,C
    解析： 暂无解析

  • 第11题：

    单选题
    Which statement is true regarding the INTERSECT operator?（）
    A

    It ignores NULL values 

    B

    Reversing the order of the intersected tables alters the result 

    C

    The names of columns in all SELECT statements must be identical 

    D

    The number of columns and data types must be identical for all SELECT statements in the query 


    正确答案： D
    解析： 暂无解析

  • 第12题：

    单选题
    Which of the following statements is true regarding the VERSIONS BETWEEN clause？（）
    A

     The VERSIONS BETWEEN clause may be used in DML statements.

    B

     The VERSIONS BETWEEN clause may be used in DDL statements.

    C

     The VERSIONS BETWEEN clause may not be used to query past DDL changes to tables.

    D

     The VERSIONS BETWEEN clause may not be used to query past DML statements to tables.


    正确答案： A
    解析： 暂无解析

  • 第13题：

    Which statements is true about Foreign Exchange Station （FXS） ports on a router？（）

    • A、the FXS interface allows an analog connection to be directed at the public switched telephone network （PSTN’s） central office
    • B、the FXS interface connect directly to a standard telephone， fax machine， or sililar device and supplies ring， voltage， and dial tone
    • C、the FXS interface connect directly to an IP phone and supplies ring， voltage， and dial tone
    • D、the FXS interface connect directly to ISDN voice channels

    正确答案:B

  • 第14题：

    Which of the following statements is true regarding the VERSIONS BETWEEN clause？（）  

    • A、 The VERSIONS BETWEEN clause may be used in DML statements.
    • B、 The VERSIONS BETWEEN clause may be used in DDL statements.
    • C、 The VERSIONS BETWEEN clause may not be used to query past DDL changes to tables.
    • D、 The VERSIONS BETWEEN clause may not be used to query past DML statements to tables.

    正确答案:C

  • 第15题：

    Which statements are true regarding classless routing protocols?（）

    • A、The use of discontiguous subnets is not allowed
    • B、The use of variable length subnet masks is permitted
    • C、RIP v1 is a classless routing protocol
    • D、IGRP supports classless routing within the same autonomous system
    • E、RIP v2 supports classless routing

    正确答案:B,E

  • 第16题：

    Which two statements are true regarding L2TP? （）(Choose two.)

    • A、Tunnels are initiated by the LAC
    • B、Tunnels are initiated by the LNS
    • C、By default, subscriber authentication occurs on the LNS
    • D、By default, subscriber authentication occurs on the LAC

    正确答案:A,C

  • 第17题：

    Which of the following statements are true regarding the Recycle Bin？（）

    • A、 The Recycle Bin is a physical storage area for dropped objects.
    • B、 The Recycle Bin is a logical container for dropped objects.
    • C、 The Recycle Bin stores the results of a Flashback Drop operation.
    • D、 The objects in the Recycle Bin are stored in the tablespace in which they were created.

    正确答案:B,D

  • 第18题：

    多选题
    Which two statements are true regarding the USING and ON clauses in table joins?（）
    A

    Both USING and ON clauses can be used for equijoins and nonequijoins

    B

    Amaximum of one pair of columns can be joined between two tables using the ON clause

    C

    The ON clause can be used to join tables on columns that have different names but compatible data types

    D

    The WHERE clause can be used to apply additional conditions in SELECT statements containing the ON or the USING clause


    正确答案： A,D
    解析： 暂无解析

  • 第19题：

    多选题
    Regarding an IPsec security association （SA）， which two statements are true？（）
    A

    IKE SA is bidirectional.

    B

    IPsec SA is bidirectional.

    C

    IKE SA is established during phase 2 negotiations.

    D

    IPsec SA is established during phase 2 negotiations.


    正确答案： D,C
    解析： 暂无解析

  • 第20题：

    多选题
    Which statements are true regarding ISDN channels?（）
    A

    Each B channel can transmit up to 64 kbps

    B

    The ISDN B channel carries voice or data

    C

    The ISDN D channel transmits control information.

    D

    The D channel transmission rate varies depending on the service used.

    E

    HDLC or PPP can be used to encapsulate D channel information.


    正确答案： C,A
    解析： 暂无解析

  • 第21题：

    多选题
    Which statements are true regarding the Query Result Cache？（）
    A

    It can be set at the system， session， or table level.

    B

    It is used only across statements in the same session.

    C

    It can store the results from normal as well as flashback queries.

    D

    It can store the results of queries based on normal，temporary，and dictionary tables.


    正确答案： B,A
    解析： 暂无解析

  • 第22题：

    单选题
    Which statements is true about Foreign Exchange Station （FXS） ports on a router？（）
    A

    the FXS interface allows an analog connection to be directed at the public switched telephone network （PSTN’s） central office

    B

    the FXS interface connect directly to a standard telephone， fax machine， or sililar device and supplies ring， voltage， and dial tone

    C

    the FXS interface connect directly to an IP phone and supplies ring， voltage， and dial tone

    D

    the FXS interface connect directly to ISDN voice channels


    正确答案： D
    解析： 暂无解析

  • 第23题：

    多选题
    Which of the following statements regarding ISDN are correct?（）
    A

    Each ISDN B channel has transmission speeds of up to 64 kbps.

    B

    The ISDN B channel can carry video, voice or data.

    C

    The ISDN B channel transmission rate varies depending on the service used.

    D

    The ISDN D channel transmits control information.

    E

    The ISDN B channels can be configured with different subnets and encapsulation types when dialer profiles are configured.


    正确答案： C,E
    解析： 暂无解析

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