A small amount of spoofed packets are being sent across a network and a large amount of reply packets are being sent back to the network resource. Which of the following BEST describes this security threat?（）A、WormB、SmurfC、Logic BombD、Man-in-the-middle

题目

A small amount of spoofed packets are being sent across a network and a large amount of reply packets are being sent back to the network resource. Which of the following BEST describes this security threat?（）

  • A、Worm
  • B、Smurf
  • C、Logic Bomb
  • D、Man-in-the-middle
相似考题

1.Which is NOT a characteristic of an RISC processor?A．a high clock speedB．a highly optimized pipelineC．a few general-purpose registersD．a limited amount of small instructions

2.On a vessel, a CO2 extinguisher is checked by ______.A.reading the gage pressureB.weighing the extinguisherC.discharging a small amount of CO2D.seeing if the seal has been broken

3.A small amount of spoofed packets are being sent across a network and a large amount of reply packets are being sent back to the network resource. Which of the following BEST describes this security threat?（）A.WormB.SmurfC.Logic BombD.Man-in-the-middle

4.听力原文：W: What is function of the sale slip? It is so small that it is not always considered important.M: It is small, of course, but it contains the details of the card and they also show the details and amount of the sale.Q: What can we learn from the conversation?(20)A．The sales slips are not important.B．The sales slips show the amount of the sale.C．The sales slips perform. important functions in the bankcard transactions.D．The sales slips contain the details of the card.

参考答案和解析
正确答案:B
更多“A small amount of spoofed packet”相关问题

  • 第1题：

    Which of the following devices will allow a technician to measure the amount of data that is capable of traversing the network?()

    A. Event logs

    B. Throughput tester

    C. Packet sniffers

    D. OTDR


    参考答案：B

  • 第2题：

    ● When a large packet wants to travel through a network whose MTU is too small, one solution is to allow routers to break up the packet into （）. （）A. messages B. frames C. fragments D. bits


    正确答案：C
    当一个很大的数据包要通过网络传输时，但链路层的MTU，很小，将采用一种方法是这些数据包分片。MTU是Maximum Transmission Unit的缩写。意思是网络上传送的最大数据包。MTU的单位是字节。
    　　大部分网络设备的MTU都是1500。如果本机的MTU比网关的MTU大，大的数据包就会被拆开来传送，这样会产生很多数据包碎片，增加丢包率，降低网络速度。把本机的MTU设成比网关的MTU小或相同，就可以减少丢包。

  • 第3题：

    international air small packet翻译成中文的意思是（）

    • A、国际信函
    • B、国际航空小包
    • C、国际航空包裹
    • D、国际航空信函

    正确答案:B

  • 第4题：

    What are three features of voice traffic on a network？（）

    • A、bursty
    • B、constant
    • C、bandwidth intensive
    • D、small packet sizes
    • E、time-sensitive
    • F、retransmittable

    正确答案:B,D,E

  • 第5题：

    VOIP has been implemented at the main office of the Company network. Which two statements  are true about voice packets in a LAN？（）

    • A、 Voice carrier stream utilizes Real-Time Transport Protocol (RTP) to carry the audio/media  portion of the VoIP communication.  
    • B、 Voice traffic data flow involves large volumes of large packets.  
    • C、 Because a packet loss involves a small amount of data, voice traffic is less affected by packet  losses than traditional data traffic is.  
    • D、 Voice packets are encapsulated in TCP segments to allow for proper sequencing during  delivery. 
    • E、 Voice packets are very sensitive to delay and jitter. 

    正确答案:A,E

  • 第6题：

    收寄国际航空邮简时，正面左上角应印有“（）”字样。

    • A、air parcel
    • B、airmail
    • C、Aerogrammes
    • D、air small packet

    正确答案:C

  • 第7题：

    Which of the following devices will allow a technician to measure the amount of data that is capable of traversing the network?（）

    • A、Event logs
    • B、Throughput tester
    • C、Packet sniffers
    • D、OTDR

    正确答案:B

  • 第8题：

    单选题
    When in operation, it is unavoidable that a small amount of oil （） through leakage, and in order to compensate for these leaks the system is connected to a feed pump.
    A

    escapes

    B

    overheats

    C

    expands

    D

    accelerates


    正确答案： C
    解析： 暂无解析

  • 第9题：

    单选题
    Diesel engine main and connecting rod precision bearings are made in halvesEach half exceeds one-half the bearing circumference by a small amountThe small amount is termed （）.
    A

    clearance

    B

    crush

    C

    pitch

    D

    thrust


    正确答案： C
    解析： 暂无解析

  • 第10题：

    多选题
    VOIP has been implemented at the main office of the Company network. Which two statements  are true about voice packets in a LAN？（）
    A

    Voice carrier stream utilizes Real-Time Transport Protocol (RTP) to carry the audio/media  portion of the VoIP communication.

    B

    Voice traffic data flow involves large volumes of large packets.

    C

    Because a packet loss involves a small amount of data, voice traffic is less affected by packet  losses than traditional data traffic is.

    D

    Voice packets are encapsulated in TCP segments to allow for proper sequencing during  delivery.

    E

    Voice packets are very sensitive to delay and jitter.


    正确答案： B,D
    解析： 暂无解析

  • 第11题：

    多选题
    Which two statements are true about voice packets in a LAN？ （Choose two.）  （）
    A

    Voice traffic data flow involves large volumes of large packets.

    B

    Because a packet loss involves a small amount of data， voice traffic is less affected by packet losses than traditional data traffic is.

    C

    Voice carrier stream utilizes Real-Time Transport Protocol （RTP） to carry the audio/media portion of VoIP communication.

    D

    Voice packets are very sensitive to delay and jitter.

    E

    Voice packets are encapsulated in TCP segments to allow for proper sequencing during delivery.


    正确答案： B,A
    解析： 暂无解析

  • 第12题：

    单选题
    A CO2 portable extinguisher is annually checked by（）.
    A

    reading the gage pressure

    B

    weighing the extinguisher

    C

    discharging a small amount of CO2

    D

    seeing if the seal has been broken


    正确答案： D
    解析： 暂无解析

  • 第13题：

    It has meant that in the first place the amount of benefits must be small lest people’s willingness to work and support themselves suffers.


    正确答案：

    本题考核知识点：目的状语从句的翻译

    该句是一个含有lest引导的目的状语从句的复合句。主句部分又包含了一个that引导的宾语从句。主句的主语为代词it，考生翻译时应联系上下文找出它所指代的对象，避免产生歧义。在此句中，it指代的是前文整个句子，可以译为“这种观念”。Mean字面含义是“表示．．．的意思”，在这里因为主语译成观念，所以可将mean活译成“认为”与之相搭配。连词lest引导目的状语从句，按字面意思直译是“以免人们的积极性受到损害”，但是考虑到要突出主语以及具体动作，可依照汉语习惯译成主动句。

    词汇：benefit常见含义是“好处，利益”，因为整个文章谈论的是社会保障问题，所以应译成“救济金，保障金”。in the first place字面意思是“在第一的位置上”，一般译为“首先”。Willingness原意为“甘愿，自愿”，Suffer意为“受损害，受痛苦”，两个词搭配在一起，译为“积极性受到损害”或“损害积极性”。

    译文：首先，这种观念认为，救济金的数额必须小，以免损害人们主动工作，自食其力的积极性。

  • 第14题：

    She only needs a minute amount of money.

    A:.certain
    B: fair
    C: full
    D: small

    答案：D
    解析：
    题干意为“她只需要很少的钱。” 句中划线词是形容词，意为“微小的”，与tiny, ultra-telescopic是同义词。D项small意为 “小的，细微的”；例句：This coat is too small for me．这件上衣对我来说太小了。A项意为“必然的，已确定的”;B项意为“公平的，合理的”;C项意为“满的，完全的”；故选D。

  • 第15题：

    You need to troubleshoot some problems in the Company VOIP network associated with jitter.   What is the cause of jitter？  （）

    • A、 Packet drops
    • B、 Transmitting too many small packets
    • C、 Variable queue delays
    • D、 Compression
    • E、 None of the other alternatives apply

    正确答案:C

  • 第16题：

    Jitter is causing problems with the VOIP application in the Company network.  What causes  network jitter？（）

    • A、Variable queue delays
    • B、Packet drops
    • C、Transmitting too many small packets
    • D、Compression

    正确答案:A

  • 第17题：

    中国邮政挂号小包英文是 China Post Ordinary Small Packet Plus。


    正确答案:错误

  • 第18题：

    What are three factors used to determine the amount of bandwidth that is required for a single VoIP call？（）

    • A、codec
    • B、link speed
    • C、Layer 2 encapsulation
    • D、packet overhead （IP/UDP/RTP）
    • E、link delay
    • F、total number of simultaneous calls that are allowed

    正确答案:A,C,D

  • 第19题：

    A System p customer is planning to implement virtualization and is concerned about how to respond  to an increased workload and what limitations there are for very small workloads.  Which of the following describes the minimum size for an LPAR and the minimum amount that can be transferred from on LPAR to another（）

    • A、Smallest partition 10% of all available processors， as small as 1% of all available processors may be transferred.
    • B、Smallest partition 10% of a processor， as small 1% of a processor may be transferred.
    • C、Smallest partition one processor， as small 1% of a processor may be transferred.
    • D、Smallest partition one core， as small 10% of a processor may be transferred.

    正确答案:B

  • 第20题：

    单选题
    You need to troubleshoot some problems in the Company VOIP network associated with jitter.   What is the cause of jitter？  （）
    A

     Packet drops

    B

     Transmitting too many small packets

    C

     Variable queue delays

    D

     Compression

    E

     None of the other alternatives apply


    正确答案： B
    解析： 暂无解析

  • 第21题：

    判断题
    The speaker thinks that it is probably a good investment to spend a small amount of money on multivitamins though there is uncertain proof of their benefits.
    A

    对

    B

    错


    正确答案： 对
    解析：
    观点态度的找寻和判断。关于对multivitamins（复合维生素）的看法，录音中首先给出传统的观点，然后指出“Now it seems those doctors may have been wrong”，由此可推测，下文内容是对讲话者观点的描述。从录音最后的总结句“Although proof of the benefits of multivitamin is still far from certain, the few dollars you spend on them is probably a good investment”，可知在说话者看来，虽然尚无证明复合维生素有益的充足证据，但是花点钱在复合维生素上很可能还是值得的。因此，该题的内容与录音原文相符。
    【录音原文】
    For many years, doctors advised their patients that the only thing taking multivitamins dose is to give them expensive urine. After all, true vitamin deficiencies, such as scurvy and pellagra, are practically unheard of in industrialized countries. Now it seems those doctors may have been wrong. The results of a growing number of studies suggest that even a modest vitamin shortfall can be harmful to your health. Although proof of the benefits of multivitamin is still far from certain, the few dollars you spend on them is probably a good investment.

  • 第22题：

    单选题
    If the gyrocompass error is east，what describes the error and the correction to be made to gyrocompass headings to obtain true headings?（）
    A

    The readings are too low (small numerically) and the amount of the error must be added to the compass to obtain true

    B

    The readings are too low and the amount of the error must be subtracted from the compass to obtain true

    C

    The readings are too high (large numerically) and the amount of the error must be added to the compass to obtain true

    D

    The readings are too high and the amount of the error must be subtracted from the compass to obtain true


    正确答案： C
    解析： 暂无解析

  • 第23题：

    单选题
    The feed water to the boiler will comprise （）.
    A

    condensate

    B

    a small amount of make-up feed

    C

    A and B

    D

    None of the above


    正确答案： D
    解析： 暂无解析

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