参考答案和解析
正确答案:D
更多“What prevents routin”相关问题
  • 第1题:

    What are two characteristics of the RED algorithm as implemented in JUNOS software?()

    A. It profiles based on bandwidth.

    B. It profiles based on loss priority.

    C. It prevents traffic loss through buffering.

    D. It prevents global synchronization with tail drops.


    参考答案:B, D

  • 第2题:

    What can we infer from the underlined sentence in Paragraph 3?

    A.people are far less familiar witn the world of fantasy

    B.the world around us could serve as a source of wonder

    C.the world of fantasy can be mirrored by a small and lively pond.

    D.Modern technology prevents us from developing our sense of wonder


    正确答案:B

  • 第3题:

    What does “evel-luffing” accomplish during crane operations ________.

    A.It prevents the load from swinging when the boom level is adjusted

    B.Less power is needed when topping the boom with a load on the hook

    C.It maintains the height of the load above the deck

    D.All of the above


    正确答案:D

  • 第4题:

    When I try to understand( )that prevents so many Americans from being as happy as one might expect,it seems to me that there are two causes.

    A.why it does
    B.what it does
    C.what it is
    D.why it is

    答案:C
    解析:
    该题考查句子结构。根据题干,“that...might expect”在句中做understand的宾语。宾语从句可由连接词that引导,that仅起连接作用,常可省略。若连接词在句中兼起一个句子成分的作用,则应使用what,how,when,why,who,which,where等连词,但要用陈述语气,根据句意答案为C,连接词在句中做表语。

  • 第5题:

    What are two characteristics of the RED algorithm as implemented in JUNOS software?()

    • A、It profiles based on bandwidth.
    • B、It profiles based on loss priority.
    • C、It prevents traffic loss through buffering.
    • D、It prevents global synchronization with tail drops.

    正确答案:B,D

  • 第6题:

    Which is a benefit of implementing RFC 2827?()

    • A、Prevents DoS from legimate, non-hostile end systems
    • B、Prevents disruption of "special services", such as Mobile IP
    • C、Defeats DoS Attacks which employ IPSource Address Spoofing
    • D、Restricts directed broadcasts at the ingress router
    • E、Allows DHCP or BOOTP packets to reach the relay agents asappropriate

    正确答案:C

  • 第7题:

    You have an Exchange Server 2010 organization.  You need to recommend a solution that prevents the permanent deletion of e-mail messages from themailboxes of employee who have been dismissed from the company.  What should you recommend?()

    • A、Implement managed folders.
    • B、Implement a legal hold for each mailbox.
    • C、Implement a Retention Policy for each mailbox.
    • D、Implement an Outlook Protection Rule for each mailbox.

    正确答案:B

  • 第8题:

    单选题
    What prevents Jack, an experienced taxi driver, working for Capes Taxi?
    A

    Unable to speak a foreign language.

    B

    Punished for speeding and wrong parking.

    C

    Not having college education.


    正确答案: B
    解析:
    分析推理题。由题句中的driver一词首先找到第一个广告(Driver Wanted)。该广告的条件是无不良驾驶记录、五官端正、25岁以上。故只有B项不符合“无不良驾驶记录”一条。

  • 第9题:

    单选题
    Chafing gear().
    A

    reduces and prevents corrosion of standing rigging

    B

    prevents corrosion of running rigging

    C

    reduces and prevents wear caused by the rubbing of one object against another

    D

    protects the body against extreme cold


    正确答案: B
    解析: 暂无解析

  • 第10题:

    多选题
    What are two characteristics of the RED algorithm as implemented in JUNOS software?()
    A

    It profiles based on bandwidth.

    B

    It profiles based on loss priority.

    C

    It prevents traffic loss through buffering.

    D

    It prevents global synchronization with tail drops.


    正确答案: C,D
    解析: 暂无解析

  • 第11题:

    单选题
    What is true about this statement used during import?() imp hr/hr tables= (employee, departments) file=hr.dmp ignore=y
    A

    It ignores duplicates.

    B

    It prevents character set translation on import.

    C

    It allows rows to be inserted into a table that already exists.

    D

    It ignores storage parameters in the DML executed during import.


    正确答案: D
    解析: 暂无解析

  • 第12题:

    单选题
    What does “evel-luffing” accomplish during crane operations().
    A

    It prevents the load from swinging when the boom level is adjusted

    B

    Less power is needed when topping the boom with a load on the hook

    C

    It maintains the height of the load above the deck

    D

    All of the above


    正确答案: D
    解析: 暂无解析

  • 第13题:

    What is the use of MSDP across multiple PIM domains?()

    A. It scopes multicast traffic.

    B. It prevents multicast routing loops.

    C. It advertises active multicast sources.

    D. It advertises RPs to all downstream routers.


    参考答案:C

  • 第14题:

    Chafing gear ______.

    A.reduces and prevents corrosion of standing rigging

    B.prevents corrosion of running rigging

    C.reduces and prevents wear caused by the rubbing of one object against another

    D.protects the body against extreme cold


    正确答案:C

  • 第15题:

    What prevents water running along the shaft of a leaking centrifugal pump from entering the shaft bearing ________.

    A.Shaft seal

    B.Water flinger

    C.Drain hole

    D.Lantern ring


    正确答案:B

  • 第16题:

    What is the importance of using Virtual Output Queues on ingress Line Cards in a high-end router?()

    • A、Prevents head-of-line blocking
    • B、Uses less memory
    • C、Increases forwarding performance
    • D、Simplifies configuration

    正确答案:A

  • 第17题:

    A constraint in a table is defined with the INITIALLY IMMEDIATE clause. You executed the ALTER TABLEcommand with the ENABLE VALIDATE option to enable the constraint that was disabled.  What are the twoeffects of this command()

    • A、It fails if any existing row violates the constraint.
    • B、It does not validate the existing data in the table.
    • C、It enables the constraint to be enforced at the end of each transaction.
    • D、It prevents insert, update, and delete operations on the table while the constraint is in the process of beingenabled

    正确答案:A,D

  • 第18题:

    What is the use of MSDP across multiple PIM domains?()

    • A、It scopes multicast traffic.
    • B、It prevents multicast routing loops.
    • C、It advertises active multicast sources.
    • D、It advertises RPs to all downstream routers.

    正确答案:C

  • 第19题:

    单选题
    If the winch should fail while you are hauling in the anchor,what prevents the anchor cable from running out?()
    A

    Chain stopper

    B

    Devil's claw

    C

    Hawse ratchet

    D

    Riding pawl


    正确答案: B
    解析: 暂无解析

  • 第20题:

    单选题
    The riding pawl is().
    A

    a safety interlock in a cargo winch that prevents the runner from overspeeding

    B

    a stopper that prevents the anchor cable from running free if the cable jumps the wildcat

    C

    the device that locks the deck lashings of the Peck and Hale system

    D

    the lug that rides on the eccentric rib and engages the locking ring on the windlass


    正确答案: A
    解析: 暂无解析

  • 第21题:

    单选题
    Which statement is correct about HTTP trickling?()
    A

    It prevents the HTTP client or server from timing-out during an antivirus update

    B

    It prevents the HTTP client or server from timing-out during antivirus scanning.

    C

    It is an attack.

    D

    It is used to bypass antivirus scanners.


    正确答案: A
    解析: 暂无解析

  • 第22题:

    单选题
    Mooring lines should be turned end-for-end occasionally. This is because().
    A

    a line is weakened by constantly pulling on it in one direction

    B

    normal wear on the line is thus distributed to different areas

    C

    it prevents the line from kinking or unlaying

    D

    it prevents permanent misalignment of the line's internal strands


    正确答案: B
    解析: 暂无解析

  • 第23题:

    单选题
    What prevents routing loops when MSDP is configured across multiple domains?()
    A

    PIM-SM

    B

    Scoping

    C

    Auto-RP

    D

    MBGP


    正确答案: B
    解析: 暂无解析