EC-COUNCIL EC0-350 問題集

質問 1：
A covert channel is a channel that
A. transfers information over, within a computer system, or network that is outside of the security policy.
B. transfers information over, within a computer system, or network that is encrypted.
C. transfers information over, within a computer system, or network that is within the security policy.
D. transfers information via a communication path within a computer system, or network for transfer of data.
正解：A

質問 2：
This attack technique is used when a Web application is vulnerable to an SQL Injection but the results of the Injection are not visible to the attacker.
A. Generic SQL Injection
B. Blind SQL Injection
C. Unique SQL Injection
D. Double SQL Injection
正解：B

質問 3：
What flags are set in a X-MAS scan?(Choose all that apply.
A. PSH
B. ACK
C. RST
D. URG
E. SYN
F. FIN
正解：A,D,F
解説: (Topexam メンバーにのみ表示されます)

質問 4：
In the following example, which of these is the "exploit"?
Today, Microsoft Corporation released a security notice. It detailed how a person could bring down the Windows 2003 Server operating system, by sending malformed packets to it. They detailed how this malicious process had been automated using basic scripting. Even worse, the new automated method for bringing down the server has already been used to perform denial of service attacks on many large commercial websites.
Select the best answer.
A. The exploit is the hacker that would use this vulnerability.
B. The documented method of how to use the vulnerability to gain unprivileged access.
C. Microsoft Corporation is the exploit.
D. Windows 2003 Server
E. The security "hole" in the product is the exploit.
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 5：
What are the three types of authentication?
A. Something you: show, have, prove
B. Something you: have, know, are
C. Something you: show, prove, are
D. Something you: know, remember, prove
正解：B

質問 6：
You are the security administrator of Jaco Banking Systems located in Boston. You are setting up e-banking website (http://www.ejacobank.com) authentication system. Instead of issuing banking customer with a single password, you give them a printed list of 100 unique passwords. Each time the customer needs to log into the e-banking system website, the customer enters the next password on the list. If someone sees them type the password using shoulder surfing, MiTM or keyloggers, then no damage is done because the password will not be accepted a second time. Once the list of 100 passwords is almost finished, the system automatically sends out a new password list by encrypted e-mail to the customer.
You are confident that this security implementation will protect the customer from password abuse.
Two months later, a group of hackers called "HackJihad" found a way to access the one-time password list issued to customers of Jaco Banking Systems. The hackers set up a fake website (http://www.e-jacobank.com) and used phishing attacks to direct ignorant customers to it. The fake website asked users for their e-banking username and password, and the next unused entry from their one-time password sheet. The hackers collected 200 customer's username/passwords this way. They transferred money from the customer's bank account to various offshore accounts.
Your decision of password policy implementation has cost the bank with USD 925, 000 to hackers. You immediately shut down the e-banking website while figuring out the next best security solution What effective security solution will you recommend in this case?
A. Configure your firewall to block logon attempts of more than three wrong tries
B. Enable a complex password policy of 20 characters and ask the user to change the password immediately after they logon and do not store password histories
C. Implement Biometrics based password authentication system. Record the customers face image to the authentication database
D. Implement RSA SecureID based authentication system
正解：D

質問 7：
What is the purpose of conducting security assessments on network resources?
A. Implementation
B. Documentation
C. Management
D. Validation
正解：D

質問 8：
_________ is a tool that can hide processes from the process list, can hide files, registry entries, and intercept keystrokes.
A. Backdoor
B. Trojan
C. RootKit
D. Scanner
E. DoS tool
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 9：
Identify SQL injection attack from the HTTP requests shown below:
A. http://www.victim.com/example accountnumber=67891&creditamount=999999999
B. http://www.myserver.c0m/search.asp?
lname=smith%27%3bupdate%20usertable%20set%20passwd%3d%27hAx0r%27%3b--%00
C. http://www.myserver.c0m/script.php?mydata=%3cscript%20src=%22
D. http%3a%2f%2fwww.yourserver.c0m%2fbadscript.js%22%3e%3c%2fscript%3e
正解：B