【判断题】
防火墙一般采用“所有未被允许的就是禁止的”和“所有未被禁止的就是允许的”两个基本准则,其中前者的安全性要比后者高。
A. 对
B. 错
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相关试题
【判断题】
当硬件配置相同时,代理防火墙对网络运行性能的影响要比包过滤防火墙小。
A. 对
B. 错
【判断题】
与 IDS 相比,IPS 具有深层防御的功能。
A. 对
B. 错
【判断题】
暴力破解与字典攻击属于同类网络攻击方式,其中暴力破解中所采用的字典要比字典攻击中使用的字典的范围要大。
A. 对
B. 错
【判断题】
入侵检测系统是网络信息系统安全的第一道防线。
A. 对
B. 错
【判断题】
非军事化区DMZ是为了解决安全防火墙后外部网路不能访问内部网络服务器的问题,而设立的一个非安全系统与安全系统之间的缓冲区。
A. 对
B. 错
【判断题】
可以在局域网的网关处安装一个病毒防火墙,从而解决整个局域网的防病毒问题。
A. 对
B. 错
【判断题】
拒绝服务攻击属于被动攻击的一种。
A. 对
B. 错
【判断题】
网络边界保护中主要采用防火墙系统,为了保证其有效发挥作用,应当避免在内网和外网之间存在不经过防火墙控制的其他通信连接。
A. 对
B. 错
【判断题】
脆弱性分析技术,也被通俗地称为漏洞扫描技术。该技术是检测远程或本地系统安全脆弱性的一种安全技术。
A. 对
B. 错
【判断题】
有的Web应用登陆界面允许攻击者暴力猜解口令,在自动工具与字典表的帮助下,可以迅速找到弱密码用户。
A. 对
B. 错
【判断题】
防止网络窃听最好的方法就是给网上的信息加密,使得侦听程序无法识别这些信息模式。
A. 对
B. 错
【判断题】
防火墙安全策略定制越多的拒绝规则,越有利于网络安全。
A. 对
B. 错
【判断题】
状态检测防火墙检测每一个通过的网络包,或者丢弃,或者放行,取决于所建立的一套规则。
A. 对
B. 错
【判断题】
入侵检测具有对操作系统的校验管理,判断是否有破坏安全的用户活动。
A. 对
B. 错
【判断题】
IPS和IDS都是主动防御系统。
A. 对
B. 错
【判断题】
一个入侵检测系统至少包含事件提取、入侵分析、入侵响应和远程管理四部分功能。
A. 对
B. 错
【判断题】
在一个有多个防火墙存在的环境中,每个连接两个防火墙的计算机或网络都是DMZ。
A. 对
B. 错
【判断题】
防火墙规则集应该尽可能的简单,-规则集越简单,错误配置的可能性就越小,系统就越安全。
A. 对
B. 错
【判断题】
即使在企业环境中,个人防火墙作为企业纵深防御的一部分也是十分必要的。
A. 对
B. 错
【判断题】
防火墙必须要提供VPN、NAT等功能。
A. 对
B. 错
【判断题】
防火墙是设置在内部网络与外部网络(如互联网)之间,实施访问控制策略的一个或一组系统。
A. 对
B. 错
【判断题】
由于网络钓鱼通常利用垃圾邮件进行传播,因此,各种反垃圾邮件的技术也都可以用来反网络钓鱼。
A. 对
B. 错
【简答题】
如何利用ftp server的安全加固?
【简答题】
请阐述一个完整的XSS Worm的攻击流程。
【简答题】
请阐述跨站点脚本攻击步骤。
【简答题】
入侵检测系统与防火墙的区别是什么?
【简答题】
渗透测试的五个阶段分别是什么?
【简答题】
渗透测试与黑客入侵的区别是什么?以及阐述渗透测试必要性。
【简答题】
什么是渗透测试?
【简答题】
入侵检测系统主要执行功能是?
【简答题】
根据实际应用,以个人防火墙为主,简述防火墙的主要功能及应用特点。
【简答题】
基于数据源所处的位置,入侵检测系统可以分为哪5类?
【简答题】
列举五个以上防火墙的主要功能。
【简答题】
对安全的攻击可分为哪几种?
【简答题】
请列举IDS(入侵检测系统)的两种分析入侵行为的方法(检测方法)。
【简答题】
什么是漏洞?
【简答题】
什么是弱密码漏洞?
【简答题】
防火墙的实现技术有哪两类?防火墙存在的局限性又有哪些?
【简答题】
简述缓冲区溢出攻击的防范措施。
【简答题】
信息安全有哪些常见的威胁?信息安全的实现有哪些主要技术措施?
推荐试题
【单选题】
You have been tasked with blocking user access to websites that violate company policy, but the sites use dynamic IP addresses. What is the best practice for URl filtering to solve the problem?___
A. Enable URL filtering and use URL categorization to block the we bsites that violate company
B. Enable URL filtering and create a blacklist to block the websites that violate company policy
C. Enable URL filtering and create a whitelist to block the websites that violate company policy
D.
E. nable URL filtering and use URL categorization to allow only the websites that company policy allows users to access.
【单选题】
Within an 802. 1x-enabled network with the auth Fail feature configured, when does a switch port get placed into a restricted VLAN?___
A. When a conected client fails to authenticate after a certain number of attempts.
B. if a connected client does not support 802. 1x
C. when AAA new-model is ena bled
D. after a connected client exceeds a specified idle time
E. when 802. 1x is not globally enabled on the Cisco Catalyst switch
【单选题】
Which type of attack does a proxy firewall protect against ?___
A. cross-site scripting attack
B. worm traffic
C. port scanning
D. DDoS attacks
【单选题】
When an administrator initiates a device wipe command from the ISE, what is the immediate effect?___
A. It requests the administrator to choose between erasing all device data or only managed corporate data.
B. It requests the administrator to enter the device pin or password before proceeding with the operation
C. It notifies the device user and proceeds with the erase operation
D. It immediately erases all data on the device
【单选题】
What is a valid implicit permit rule for traffic that is traversing the ASa firewall?___
A. ARPs in both directions are permitted in transparent mode only
B. Unicast IPv4 traffic from a higher security interface to a lower security interface is permittee in routed mode only.
C. Unicast IPv6 traffic from a higher security interface to a lower security interface is permitted in transparent mode only.
D. Only BPDUs from a higher security interface to a lower secur ity interface are permitted in transparent mode.
E. Only BPDUs from a higher security interface to a lower secur ity interface are permitted in routed mode
【单选题】
A specific URL has been identified as containing malware. What action can you take to block users from accidentally visiting the URl and becoming infected with malware ?___
A. Enable URL filtering on the perimeter router and add the URls you want to block to the router's local URL list
B. Enable URL filtering on the perimeter firewall and add the URls you want to allow to the router's local URL list.
C. Enable URL filtering on the perimeter router and add the URls you want to allow to the firewall's local URL list
D. Create a blacklist that contains the URl you want to block and activate the blacklist on the perimeter rout
E. Create a whitelist that contains the URLs you want to allow and activate the whitelist on the perimeter router.
【单选题】
How does PEAP protect the EAP exchange ?___
A. It encrypts the exchange using the server certificate
B. It encrypts the exchange using the client certificate
C. It validates the server-supplied certificate,and then encrypts the exchange using the client certificate
D. It validates the client-supplied certificate,and then encrypts the excha nge using the server certificate
【单选题】
Which feature of the Cisco Email Security Appliance can mitigate the impact of snowshoe spam and sophisticated phishing attacks?___
A. contextual analysis
B. holistic understanding of threats
C. graymail management and filtering
D. signature-based IPS
【单选题】
Refer to the exhibit【nat (inside,outside)dunamic interface】 Which translation technique does this configuration result in?___
A. DynamIc PAT
B. Dynamic NAT
C. Twice NAT
D. Static NAT
【单选题】
Refer to the exhibit which are repre sents the data center?___
A. A
B. B
C. C
D. D
【单选题】
While trouble shooting site-to-site VPN, you issued the show crypto isakmp sa command. What does the given output show?___
A. IKE Phase 1 main mode was created on 10.1.1.5, but it failed to negotiate with 10.10 10.2
B. IKE Phase 1 main mode has successfully negotiated between 10.1.1.5 and 10.10..
C. IKE Phase 1 aggressive mode was created on 10.1.1.5, but it failed to negotiate with
【单选题】
Refer to the exhibit All ports on switch 1 have a primary vLan of 300 Which devices can host 1 reach?___
A. host 2
B. server
C. host 4
D. other devices within VLAN303
【单选题】
Which option is the cloud-based security service from Cisco the provides URL filtering, web browsing content security, and roaming user protection?___
A. Cloud Web service
B. Cloud Advanced Malware Protection
C. Cloud We b Security
D. Cloud Web Protection
【单选题】
How can you detect a false negative on an IPS?___
A. View the alert on the ips
B. Review the ips log
C. Review the is console
D. Use a third- party system to perform penetration testing.
E. Use a third- party to audit the next generation firewall rules
【单选题】
If a switch port goes directly into a blocked state only when a superior BPDU is received, what mechanism must be in use?___
A. STP BPDU guard
B. Loop guard
C. EtherChannel guard
D. STP Root guard
【单选题】
what improvement does EAP-FASTv2 provide over EAP-FAST? ___
A. It allows multiple credentials to be passed in a single EAP exchange.
B. It supports more secure encryption protocols
C. It allows faster authentication by using fewer packets.
D. It addresses security vulnerabilities found in the original protocol
【单选题】
When users login to the Client less Ssl Vpn using https://209.165.201.2/test ,which group policy will be applied?___
A. test
B. clientless
C. sales
D. DfitGrp Policy
E. Default RAGroup
F. Default WEB VPN
G. roup
【单选题】
Which user authentication method is used when users login to the Clientless SSLVPN portal using https://209.165.201.2/test?___
A. AAA with LOCAL database
B. AAA with RADIUS server
C. Certificate
D. :Both Certificate and aaa with LoCAL database
E. Both Certificate and AAA with RADIUS server
【单选题】
What' s the technology that you can use to prevent non malicious program to runin the computer that is disconnected from the network?___
A. Firewall
B. Sofware Antivirus
C. Network IPS
D. Host IPS
【单选题】
Which statement about the communication between interfaces on the same security level is true?___
A. Interfaces on the same security level require additional configuration to permit interinterface communication
B. Configuring interfaces on the same security level can cause asymmetric routing
C. All traffic is allowed by default between interfaces on the same security level
D. You can configure only one interface on a n individual security level
【单选题】
Which product can be used to provide application layer protection for tcp port 25 traffic?___
A. ESA
B. CWS
C. WSA
D. ASA
【单选题】
which iPS mode is less secure than other options but allows optimal network through put ?___
A. inline mode
B. inline-bypass mode
C. transparent mode
D. Promiscuous mode
【单选题】
Which feature of the Cisco Email security Appliance can mitigate the impact of snowshoe spam and sophisticated phishing attack?___
A. reputation based filtering
B. signature based IPS
C. contextual analysis
D. graymail management and filtering
【单选题】
Which type of social-engineering attack uses normal tele phone service as the attack vector?___
A. smishing
B. dialing
C. phishing
D. vishing
【单选题】
Which quantifiable item should you consider when you organization adopts new technologies?___
A. exploits
B. vulnerability
C. threat
D. Risk
【单选题】
Referencing the ClA model, in which scenario is a hash- only function most appropriate ?___
A. securing data at rest
B. securing real-time traffic
C. securing data in files
D. securing wireless transmissions
【单选题】
Which ports must be open between a aaa server and a microsoft server to permit Active Directory authentications?___
A. 445 and 389
B. 888 and 3389
C. 636 and 4445
D. 363 and 983
【单选题】
Refer to the exhibit for which reason is the tunnel unable to pass traffic___
A. the tunnel is failing to receive traffic from the remote peer
B. the local peer is unable to encrypt the traffic
C. the ip address of the remote peer is incorrect
D. UDP port 500 is blocked
【单选题】
Which type of attack can exploit design flaws in the implementation of an application without___
A. DHCP starvation attacks
B. low-rate dos attacks
C. application DDos flood attacks
D. application DDoS flood attacks
E. volume-based DDoS attacks
【单选题】
How can you protect CDP from reconnaissance attacks?___
A. Enable dynamic ARP inspection on all untrusted ports.
B. Enable dot1x on all ports that are connected to other switches.
C.
D. isable CDP on ports connected to endpoints.
【单选题】
Which type of attack can exploit design flaws in the implementation of an application without ?___
A. DHCP starvation attacks
B. low-rate dos attacks
C. application DDos flood attacks
D. application DDoS flood attacks
E. volume-based DDoS attacks
【单选题】
Which option is a key security compone nt of and MDM deployment ?___
A. using network-specific installer packages
B. using an application tunnel by default
C. using self-signed certificates to validate the server
D. using MS-CHAPv2 as the primary
E. AP method
【单选题】
Which Firepower Management Center feature detects and block exploits and hack attempts?___
A. Content blocker
B. file control
C. intrusion prevention
D. advanced malware protection
【单选题】
hich description of the nonsecret numbers that are used to start a Diffie- Hellman exchange is ture?___
A. They are preconfigured prime integers.
B. They are large pseudorandom numbers.
C. They are very small numbers chosen from a table of known valuses
D. They are numeric values extracted from ha shed system hostnames
【多选题】
Which two characteristics of an application layer firewall are true?___
A. provides stateful firewal functionality
B. has low processor usage
C. provides protection for multiple applications
D. provides rever se proxy services
E. is immune to URL manipulation
【多选题】
Which two devices are components of the BYOD architectural framework?___
A. Nexus 7010 switch
B. Cisco 3945 Router
C. Identify Services Engine
D. Wireless Access oints
E. Prime Infrastructure
【多选题】
Which two actions can a zone based firewall take when looking at traffic? ___
A. forward
B. inspect
C. drop
D. broadcast
E. filter
【多选题】
n which two situations should you use in-band management?___
A. when management applications need concurrent access to the device
B. when you require administrator access from multiple locations
C. when a network device fails to forward packets
D. when you require ROMMON access
E. when the control plane fails to respond
【多选题】
What are two ways to prevent eavesdropping when you perform device management tasks?___
A. Use an SSH connection.
B. Use SNMPv3
C. Use out-of-band management
D. Use SNMP
E. Use in-band management
【多选题】
Which two features are commonly used CoPP and CPPr to protect the control plane? ___
A. QoS
B. traffic classification
C. access lists
D. policy maps
E. class maps
F. Cisco Express Forwarding