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FromNumber of exam questionsExam nameExam codeLast updated
Lead4Pass15Certified Ethical Hacker Exam (CEHv12)312-50v12312-50v12 dumps
Question 1:

BitLocker encryption has been implemented for all Windows-based computers in an organization. You are concerned that someone might lose their cryptographic key. Therefore, a mechanism was implemented to recover the keys from Active Directory. What is this mechanism called in cryptography?

A. Key Archival

B. Key escrow.

C. Certificate rollover

D. Key renewal

Correct Answer: B

Question 2:

An incident investigator asks to receive a copy of the event logs from all firewalls, proxy servers, and Intrusion Detection Systems (IDS) on the network of an organization that has experienced a possible breach of security. When the investigator attempts to correlate the information in all of the logs, the sequence of many of the logged events does not match up.

What is the most likely cause?

A. The network devices are not all synchronized.

B. Proper chain of custody was not observed while collecting the logs.

C. The attacker altered or erased events from the logs.

D. The security breach was a false positive.

Correct Answer: A

Many network and system administrators don’t pay enough attention to system clock accuracy and time synchronization. Computer clocks can run faster or slower over time, batteries and power sources die, or daylight-saving time changes are forgotten. Sure, there are many more pressing security issues to deal with, but not ensuring that the time on network devices is synchronized can cause problems. And these problems often only come to light after a security incident. If you suspect a hacker is accessing your network, for example, you will want to analyze your log files to look for any suspicious activity. If your network\’s security devices do not have synchronized times, the timestamps\’ inaccuracy makes it impossible to correlate log files from different sources. Not only will you have difficulty in tracking events, but you will also find it difficult to use such evidence in court; you won’t be able to illustrate a smooth progression of events as they occurred throughout your network.

Question 3:

Which of the following is the primary objective of a rootkit?

A. It opens a port to provide an unauthorized service

B. It creates a buffer overflow

C. It replaces legitimate programs

D. It provides an undocumented opening in a program

Correct Answer: C

Question 4:

What is one of the advantages of using both symmetric and asymmetric cryptography in SSL/TLS?

A. Supporting both types of algorithms allows less-powerful devices such as mobile phones to use symmetric encryption instead.

B. Symmetric algorithms such as AES provide a failsafe when asymmetric methods fail.

C. Symmetric encryption allows the server to securely transmit the session keys out-of-band.

D. Asymmetric cryptography is computationally expensive in comparison. However, it is well-suited to securely negotiate keys for use with symmetric cryptography.

Correct Answer: A

Question 5:

Which command can be used to show the current TCP/IP connections?

A. Netsh

B. Netstat

C. Net use connection

D. Net use

Correct Answer: A

Question 6:

You need to deploy a new web-based software package for your organization. The package requires three separate servers and needs to be available on the Internet. What is the recommended architecture in terms of server placement?

A. All three servers need to be placed internally

B. A web server facing the Internet, an application server on the internal network, a database server on the internal network

C. A web server and the database server facing the Internet, an application server on the internal network

D. All three servers need to face the Internet so that they can communicate with themselves

Correct Answer: B

Question 7:

You are working as a Security Analyst in a company XYZ that owns the whole subnet range of and

While monitoring the data, you find a high number of outbound connections. You see that IP\’s owned by XYZ (Internal) and private IP\’s are communicating to a Single Public IP. Therefore, the Internal IP\’s are sending data to the Public IP.

After further analysis, you find out that this Public IP is a blacklisted IP, and the internal communicating devices are compromised.

What kind of attack does the above scenario depict?

A. Botnet Attack

B. Spear Phishing Attack

C. Advanced Persistent Threats

D. Rootkit Attack

Correct Answer: A

Question 8:

Harry. a professional hacker, targets the IT infrastructure of an organization. After preparing for the attack, he attempts to enter the target network using techniques such as sending spear-phishing emails and exploiting vulnerabilities on publicly available servers. Using these techniques, he successfully deployed malware on the target system to establish an outbound connection. What is the APT lifecycle phase that Harry is currently executing?

A. Preparation

B. Cleanup

C. Persistence

D. initial intrusion

Correct Answer: D

After the attacker completes preparations, the subsequent step is an effort to realize an edge within the target\’s environment.

A particularly common entry tactic is the use of spearphishing emails containing an internet link or attachment.

Email links usually cause sites where the target\’s browser and related software are subjected to varied exploit techniques or where the APT actors plan to social engineer information from the victim which will be used later.

If a successful exploit takes place, it installs an initial malware payload on the victim\’s computer. Figure 2 illustrates an example of a spearphishing email that contains an attachment. Attachments are usually executable malware, a zipper or other archive containing malware, or a malicious Office or Adobe PDF (Portable Document Format) document that exploits vulnerabilities within the victim\’s applications to ultimately execute the malware on the victim\’s computer.

Once the user has opened a malicious file using vulnerable software, malware is executing on the target system. These phishing emails are often very convincing and difficult to differentiate from legitimate email messages.

Tactics to extend their believability include modifying legitimate documents from or associated with the organization. Documents are sometimes stolen from the organization or its collaborators during previous exploitation operations.

Actors modify the documents by adding exploits and malicious code then send them to the victims. Phishing emails are commonly sent through previously compromised email servers, email accounts at organizations associated with the target, or public email services.

Emails also can be sent through mail relays with modified email headers to form the messages that appear to possess originated from legitimate sources.

The exploitation of vulnerabilities on public-facing servers is another favorite technique of some APT groups.

Though this will be accomplished using exploits for known vulnerabilities, 0-days are often developed or purchased to be used in intrusions as required

312-50v12 dumps practice q8

Gaining an edge within the target environment is the primary goal of the initial intrusion.

Once a system is exploited, the attacker usually places malware on the compromised system and uses it as a jump point or proxy for further actions.

Malware placed during the initial intrusion phase is usually an easy downloader, a basic Remote Access Trojan, or an easy shell. Figure 3 illustrates a newly infected system initiating an outbound connection to notify the APT actor that the initial intrusion attempt was successful which it\’s able to accept commands.

Question 9:

What does a firewall check to prevent particular ports and applications from getting packets into an organization?

A. Transport layer port numbers and application layer headers

B. Presentation layer headers and the session layer port numbers

C. Network layer headers and the session layer port numbers

D. Application layer port numbers and the transport layer headers

Correct Answer: A

Question 10:

Bob is acknowledged as a hacker of repute and is popular among visitors of “underground” sites.

Bob is willing to share his knowledge with those who are willing to learn, and many have expressed their interest in learning from him. However, this knowledge has a risk associated with it, as it can be used for malevolent attacks as well. In this context, what would be the most effective method to bridge the knowledge gap between the “black” hats or crackers and the “white” hats or computer security professionals? (Choose the test answer.)

A. Educate everyone with books, articles, and training on risk analysis, vulnerabilities, and safeguards.

B. Hire more computer security monitoring personnel to monitor computer systems and networks.

C. Make obtaining either a computer security certification or accreditation easier to achieve so more individuals feel that they are a part of something larger than life.

D. Train more National Guard and reservists in the art of computer security to help out in times of emergency or crises.

Correct Answer: A

Question 11:

You are the Network Admin, and you get a complaint that some of the websites are no longer accessible. You try to ping the servers and find them to be reachable. Then you type the IP address and then you try on the browser and find it to

be accessible. But they are not accessible when you try using the URL.

What may be the problem?

A. Traffic is Blocked on UDP Port 53

B. Traffic is Blocked on TCP Port 80

C. Traffic is Blocked on TCP Port 54

D. Traffic is Blocked on UDP Port 80

Correct Answer: A

Most likely have an issue with DNS.

DNS stands for “Domain Name System.” It\’s a system that lets you connect to websites by matching human-readable domain names (like with the server\’s unique ID where a website is stored.

Think of the DNS system as the internet\’s phonebook. It lists domain names with their corresponding identifiers called IP addresses, instead of listing people\’s names with their phone numbers. When a user enters a domain name like on their device, it looks up the IP address and connects them to the physical location where that website is stored.

NOTE: Often DNS lookup information will be cached locally inside the querying computer or remotely in the DNS infrastructure. There are typically 8 steps in a DNS lookup. When DNS information is cached, steps are skipped from the DNS

lookup process, making it quicker. The example below outlines all 8 steps when nothing is cached.

The 8 steps in a DNS lookup:


A user types `\’ into a web browser, and the query travels into the Internet and is received by a DNS recursive resolver;


The resolver then queries a DNS root nameserver;


The root server then responds to the resolver with the address of a Top-Level Domain (TLD) DNS server (such as .com or .net), which stores the information for its domains. When searching for, our request is pointed toward the .com TLD;


The resolver then requests the .com TLD;


The TLD server then responds with the IP address of the domain\’s nameserver,;


Lastly, the recursive resolver sends a query to the domain\’s nameserver;


The IP address for is then returned to the resolver from the nameserver;


The DNS resolver then responds to the web browser with the IP address of the domain requested initially;

Once the 8 steps of the DNS lookup have returned the IP address for, the browser can request the web page:


The browser makes an HTTP request to the IP address;


The server at that IP returns the webpage to be rendered in the browser. NOTE 2: DNS primarily uses the User Datagram Protocol (UDP) on port number 53 to serve requests. And if this port is blocked, then a problem arises already in the first step.

But the ninth step is performed without problems.

Question 12:

This TCP flag instructs the sending system to transmit all buffered data immediately.






Correct Answer: C

Question 13:

Fred is the network administrator for his company. Fred is testing an internal switch.

From an external IP address, Fred wants to try and trick this switch into thinking it already has established a session with his computer. How can Fred accomplish this?

A. Fred can accomplish this by sending an IP packet with the RST/SIN bit and the source address of his computer.

B. He can send an IP packet with the SYN bit and the source address of his computer.

C. Fred can send an IP packet with the ACK bit set to zero and the source address of the switch.

D. Fred can send an IP packet to the switch with the ACK bit and the source address of his machine.

Correct Answer: D

Question 14:

Security administrator John Smith has noticed abnormal amounts of traffic coming from local computers at night. Upon review, he finds that user data have been exfiltrated by an attacker. AV tools are unable to find any malicious software, and the IDS/IPS has not reported on any non-whitelisted programs, what type of malware did the attacker use to bypass the company\’s application whitelisting?

A. Phishing malware

B. Zero-day malware

C. File-less malware

D. Logic bomb malware

Correct Answer: C

Question 15:

Elliot is in the process of exploiting a web application that uses SQL as a back-end database. He\’s determined that the application is vulnerable to SQL injection, and has introduced conditional timing delays into injected queries to determine whether they are successful. What type of SQL injection is Elliot most likely performing?

A. Error-based SQL injection

B. Blind SQL injection

C. Union-based SQL injection

D. NoSQL injection

Correct Answer: B

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New Question 1:

When configuring wireless on his home router, Javik disables SSID broadcast. He leaves authentication “open” but sets the SSID to a 32-character string of random letters and numbers.

What is an accurate assessment of this scenario from a security perspective?

A. Since the SSID is required in order to connect, the 32-character string is sufficient to prevent brute-force attacks.

B. Disabling SSID broadcast prevents 802.11 beacons from being transmitted from the access point, resulting in a valid setup leveraging “security through obscurity”.

C. It is still possible for a hacker to connect to the network after sniffing the SSID from a successful wireless association.

D. Javik\’s router is still vulnerable to wireless hacking attempts because the SSID broadcast setting can be enabled using a specially crafted packet sent to the hardware address of the access point.

Correct Answer: C

New Question 2:

what are common files on a web server that can be misconfigured and provide useful Information for a hacker such as verbose error messages?

A. httpd.conf

B. administration.config

C. idq.dll

D. php.ini

Correct Answer: D

The php.ini file may be a special file for PHP. it\’s where you declare changes to your PHP settings. The server is already configured with standard settings for PHP, which your site will use by default. Unless you would like to vary one or more settings, there\’s no got to create or modify a php.ini file. If you\’d wish to make any changes to settings, please do so through the MultiPHP INI Editor.

New Question 3:

An attacker identified that a user and an access point are both compatible with WPA2 and WPA3 encryption. The attacker installed a rogue access point with only WPA2 compatibility in the vicinity and forced the victim to go through the WPA2 four-way handshake to get connected. After the connection was established, the attacker used automated tools to crack WPA2-encrypted messages. What is the attack performed in the above scenario?

A. Timing-based attack

B. Side-channel attack

C. Downgrade security attack

D. Cache-based attack

Correct Answer: B

New Question 4:

Which of the following statements is TRUE?

A. Packet Sniffers operate on the Layer 1 of the OSI model.

B. Packet Sniffers operate on Layer 2 of the OSI model.

C. Packet Sniffers operate on both Layer 2 and Layer 3 of the OSI model.

D. Packet Sniffers operate on Layer 3 of the OSI model.

Correct Answer: B

New Question 5:

Ralph, a professional hacker, targeted Jane, who had recently bought new systems for her company. After a few days, Ralph contacted Jane while masquerading as a legitimate customer support executive, informing that her systems need to be serviced for proper functioning and that customer support will send a computer technician. Jane promptly replied positively. Ralph entered Jane\’s company using this opportunity and gathered sensitive information by scanning terminals for passwords, searching for important documents in desks, and rummaging bins. What is the type of attack technique Ralph used on jane?

A. Dumpster diving

B. Eavesdropping

C. Shoulder surfing

D. impersonation

Correct Answer: D

New Question 6:

Leverox Solutions hired Arnold, a security professional, for the threat intelligence process. Arnold collected information about specific threats against the organization. From this information, he retrieved contextual information about security events and incidents that helped him disclose potential risks and gain insight into attacker methodologies. He collected the information from sources such as humans, social media, and chat rooms as well as from events that resulted in cyberattacks. In this process, he also prepared a report that includes identified malicious activities, recommended courses of action, and warnings for emerging attacks. What is the type of threat intelligence collected by Arnold in the above scenario?

A. Strategic threat intelligence

B. Tactical threat intelligence

C. Operational threat intelligence

D. Technical threat intelligence

Correct Answer: C

New Question 7:

Which tool can be used to silently copy files from USB devices?

A. USB Grabber

B. USB Snoopy

C. USB Sniffer

D. Use Dumper

Correct Answer: D

New Question 8:

Which of the following algorithms can be used to guarantee the integrity of messages being sent, in transit, or stored?

A. symmetric algorithms

B. asymmetric algorithms

C. hashing algorithms

D. integrity algorithms

Correct Answer: C

New Question 9:

Don, a student, came across a gaming app in a third-party app store and Installed it. Subsequently, all the legitimate apps in his smartphone were replaced by deceptive applications that appeared legitimate. He also received many advertisements on his smartphone after Installing the app. What is the attack performed on Don in the above scenario?

A. SMS phishing attack

B. SIM card attack

C. Agent Smith attack

D. Clickjacking

Correct Answer: D

New Question 10:

Bob, your senior colleague, has sent you a mail regarding a deal with one of the clients. You are requested to accept the offer and you oblige. After 2 days, Bab denies that he had ever sent a mail. What do you want to “”know”” to prove yourself that it was Bob who had send a mail?

A. Non-Repudiation

B. Integrity

C. Authentication

D. Confidentiality

Correct Answer: A

New Question 11:

John, a disgruntled ex-employee of an organization, contacted a professional hacker to exploit the organization. In the attack process, the professional hacker Installed a scanner on a machine belonging to one of the vktims and scanned several machines on the same network to Identify vulnerabilities to perform further exploitation. What is the type of vulnerability assessment tool employed by John in the above scenario?

A. Proxy scanner

B. Agent-based scanner

C. Network-based scanner

D. Cluster scanner

Correct Answer: B

New Question 12:

Gerard, a disgruntled ex-employee of Sunglass IT Solutions, targets this organization to perform sophisticated attacks and bring down its reputation in the market. To launch the attacks process, he performed DNS footprinting to gather information about ONS servers and to identify the hosts connected in the target network. He used an automated tool that can retrieve information about DNS zone data including DNS domain names, computer names. IP addresses. DNS records, and network Who is records. He further exploited this information to launch other sophisticated attacks. What is the tool employed by Gerard in the above scenario?

A. Knative


C. Towelroot

D. Bluto

Correct Answer: D

New Question 13:

Morris, an attacker, wanted to check whether the target AP is in a locked state. He attempted using

different utilities to identify WPS-enabled APs in the target wireless network. Ultimately, he succeeded with

one special command-line utility.

Which of the following command-line utilities allowed Morris to discover the WPS-enabled APs?

A. wash

B. ntptrace

C. macof

D. net View

Correct Answer: A

New Question 14:

E-mail scams and mail fraud are regulated by which of the following?

A. 18 U.S.C. par. 1030 Fraud and Related activity in connection with Computers

B. 18 U.S.C. par. 1029 Fraud and Related activity in connection with Access Devices

C. 18 U.S.C. par. 1362 Communication Lines, Stations, or Systems

D. 18 U.S.C. par. 2510 Wire and Electronic Communications Interception and Interception of Oral Communication

Correct Answer: A

New Question 15:

jane, an ethical hacker. Is testing a target organization\’s web server and website to identity security loopholes. In this process, she copied the entire website and its content on a local drive to view the complete profile of the site\’s directory structure, file structure, external links, images, web pages, and so on. This information helps jane map the website\’s directories and gain valuable information. What is the attack technique employed by Jane in the above scenario?

A. website mirroring

B. Session hijacking

C. Web cache poisoning

D. Website defacement

Correct Answer: A

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