ACA-Sec1

Reliable server daily operation and security management are essential for continuous service running . Which of the following statement is NOT correct regarding to this scenario?A . set easy to remember password to help administrator quickly login and solve problemsB . patch system timely and frequentlyC . enable build-in OS...

In order to stop the service provided through a particular port in Windows OS, which of the following methods can be used to achieve this objective? (the number of correct answers: 3)A . adjust firewall ruleB . adjust local security policyC . update OS patchD . stop the service itselfE...

Which of the following function is provided by 'server guard' patch management service?A . fix vulnerability found in open source software using Alibaba self-developed patchB . detect any vulnerability before it burstsC . release official patches for any exposed vulnerabilityD . stop hacker's vulnerabilities probingView AnswerAnswer: B

Which of the following shell command can be used to check disk usage in a Linux OS ECSA . Df ChB . EchoC . Free CmD . Ps Ce CoView AnswerAnswer: A

What of the followings will happen if encounter DoS or DDoS attack?A . Data received successfullyB . Delay of data receptionC . Slow access web resourcesD . unauthorized access controlView AnswerAnswer: B,C

Which of the following DDoS descriptions are correct?A . In order to get admin passwordB . Steal confidential informationC . Causes the target server unable to process legitimate requestsD . If the target server has no vulnerabilities, the remote attack may still succeed.View AnswerAnswer: C,D

Which of the following statements about VLAN are NOT true? (the number of correct answers: 3) Score 1A . users in different VLAN can connect each other directly without pre-configurationB . different VLAN means different physical location of switchesC . VLAN configuration can be done through an TCP/IP router deviceD...

Which of the following protocol is dedicated to resolve IP and MAC addresses?A . TCPB . ARPC . DNSD . ICMPView AnswerAnswer: B

You are planning on hosting an eCommerce Web server. You are intent on making the server secure against all external attacks possible . Which of the following would be the best way to test your server for its weaknesses? Choose the best answer.A . Ping to the serverB . Simulate...

Which protocol is a 'data link' layer protocol in ISO/OSI 7 layer network model? Score 2A . ICMPB . ARPC . FTPD . UDPView AnswerAnswer: B