CEH-001 トレーリング学習、CBAF-001 参考書
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試験番号：CEH-001 トレーリング学習試験科目：「Certified Ethical Hacker (CEH)」
最近更新時間：2017-03-01
問題と解答：878
試験番号：CBAF-001 参考書試験科目：「Certified Business Analyst (CBA) - Foundation」
最近更新時間：2017-03-01
問題と解答：160
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NO.1 Which are true statements concerning the BugBear and Pretty Park worms?
Select the best answers.
A. Pretty Park can terminate anti-virus applications that might be running to bypass them.
B. BugBear propagates via network shares and email
C. Both programs use email to do their work.
D. Pretty Park tries to connect to an IRC server to send your personal passwords.
E. Pretty Park propagates via network shares and email
Answer: B,C,D
CEH-001 模擬
Explanation:
Both Pretty Park and BugBear use email to spread. Pretty Park cannot propagate via network shares,
only email. BugBear propagates via network shares and email. It also terminates anti-virus
applications and acts as a backdoor server for someone to get into the infected machine. Pretty Park
tries to connect to an IRC server to send your personal passwords and all sorts of other information
it retrieves from your PC. Pretty Park cannot terminate anti-virus applications. However, BugBear
can terminate AV software so that it can bypass them.
NO.2 Under what conditions does a secondary name server request a zone transfer from a primary
name server?
A. When the TTL falls to zero
B. When a primary name server has had its service restarted
C. When a secondary name server has had its service restarted
D. When a primary SOA is higher that a secondary SOA
E. When a secondary SOA is higher that a primary SOA
Answer: D
CEH-001 段階
NO.3 An attacker is attempting to telnet into a corporation's system in the DMZ.
The attacker doesn't want to get caught and is spoofing his IP address.
After numerous tries he remains unsuccessful in connecting to the system.
The attacker rechecks that the target system is actually listening on Port 23 and he verifies it with
both nmap and hping2. He is still unable to connect to the target system. What could be the reason?
A. He needs to use an automated tool to telnet in
B. He cannot spoof his IP and successfully use TCP
C. He is attacking an operating system that does not reply to telnet even when open
D. The firewall is blocking port 23 to that system
Answer: B
CEH-001 虎の巻
NO.4 Rebecca has noted multiple entries in her logs about users attempting to connect on ports
that are either not opened or ports that are not for public usage. How can she restrict this type of
abuse by limiting access to only specific IP addresses that are trusted by using one of the built-in
Linux Operating System tools?
A. Ensure all files have at least a 755 or more restrictive permissions.
B. Configure and enable portsentry on his server.
C. Install an intrusion detection system on her computer such as Snort.
D. Configure rules using ipchains.
Answer: D
CEH-001 改訂 CEH-001 勉強法
Explanation:
ipchains is a free software based firewall for Linux. It is a rewrite of Linux's previous IPv4 firewalling
code, ipfwadm. In Linux 2.2, ipchains is required to administer the IP packet filters. ipchains was
written because the older IPv4 firewall code used in Linux
2.0 did not work with IP fragments and didn't allow for specification of protocols other than TCP ,
UDP , and ICMP .
