2. 计算机
  3. There are different ways to perform IP based DoS Attacks．The most common IP based DoS attack is that an attacker sends an extens

There are different ways to perform IP based DoS Attacks．The most common IP based DoS attack is that an attacker sends an extens

admin2018-05-26  14
问题 There are different ways to perform IP based DoS Attacks．The most common IP based DoS attack is that an attacker sends an extensive amount of connection establishment  (1)   (e．g．TCP SYN requests)to establish hanging connections with the controller or a DPS．Such a way,the attacker can consume the network resources which should be available for legitimate users．In other  (2)  ，the attacker inserts a large amount of  (3)  packets to the data plane by spoofing all or part of the header fields with random values．These incoming packets will trigger table-misses and send lots of packet-in flow request messages to the network controller to saturate the controller resources．In some cases，all  (4)  who gains access to DPS can artificially generate lots of random packet-in flow request messages to saturate the control channel and the controller resources．Moreover,the lack of diversity among DPSs fuels the fast propagation of such attacks．
     Legacy mobile backhaul devices are inherently protected against the propagation of attacks due to complex and vendor specific equipment．Moreover,legacy backhaul devices do not require frequent communication with core control devices in a manner similar to DPSs communicating with the centralized controller．These features minimize both the impact and propagation of DoS attacks．Moreover,the legacy backhaul devices are controlled as a joint effort of multiple network elements．For instance，a single Long Term Evolution(LTE) eNodeB is connected up to 32 MMEs．Therefore，DoS／DDoS attack on a single core element will not terminate the entire operation of a backhaul device  (5)  the network．
(4)
选项 A、user
B、administrator
C、editor
D、attacker
答案D
解析
转载请注明原文地址:https://kaotiyun.com/show/GgTZ777K
本试题收录于： 信息安全工程师上午基础知识考试题库软考中级分类
0

信息安全工程师上午基础知识考试

软考中级

相关试题推荐
随机试题
最新回复(0)