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信息安全工程师每日一练试题内容(2021/9/19)
试题1: 蜜罐是一种在互联网上运行的计算机系统,是专门为吸引并诱骗那些试图非法闯入他人计算机系统的人而设计的。以下关于蜜罐的描述中,不正确的是( )。 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, an (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 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 element. For instance, a single Long Term Evilution(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 net work.
电子邮件是传播恶意代码的重要途径,为了防止电子邮件中的恶意代码的攻击,用()方式阅读电子邮件
A、网页
B、纯文本
C、程序
D、会话
在以下网络威胁中,()不属于信息泄露
A、数据窃听
B、流量分析
C、偷窃用户账户
D、暴力破解
防火墙作为一种被广泛使用的网络安全防御技术,其自身有一些限制,它不能阻止()
A、内部威胁和病毒威胁
B、外部攻击
C、外部攻击、外部威胁和病毒威胁
D、外部攻击和外部威胁
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