CompTIA认证考试
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
相似问题和答案
第1题：
On a vessel, a CO2 extinguisher is 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
在船上，CO2灭火器是通过称重灭火器来检查的。
第2题：
A. Event logs
B. Throughput tester
C. Packet sniffers
D. OTDR
第3题：
Which is NOT a characteristic of an RISC processor?
A．a high clock speed
B．a highly optimized pipeline
C．a few general-purpose registers
D．a limited amount of small instructions
第4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5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
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6题：
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
第7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.
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8题：
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.
解析：当女士问男士销售单的功能时，男士答到，它包含了信用卡的详细信息，也能显示出销售金额以及其他详细信息，可见销售单在信用卡交易中发挥着重要作用。
第9题：
B: fair
C: full
D: small
第10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