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CompTIA CAS-004 certification exam is challenging, and candidates need to have a deep understanding of cybersecurity concepts and technologies to pass the exam. However, passing the certification exam can provide IT professionals with a competitive edge in the job market and open up new career opportunities. Overall, the CompTIA CAS-004 certification exam is an excellent choice for IT professionals who want to advance their careers in the cybersecurity field.
Preparing for the CompTIA CAS-004 exam requires a significant amount of study and practice. Candidates are advised to use a variety of study materials, including textbooks, online courses, and practice exams. They should also gain hands-on experience in configuring and implementing security solutions in real-world environments. By passing the CompTIA CAS-004 exam, candidates can demonstrate their advanced skills and knowledge in cybersecurity, increase their career opportunities, and contribute to the protection of organizations against cyber threats.
NEW QUESTION # 147
The Chief Information Security Officer (CISO) of an organization is concerned with the transmission of cleartext authentication information across the enterprise.
A security assessment has been performed and has identified the use of ports 80, 389, and 3268.
Which of the following solutions would BEST address the CISO's concerns?
- A. Force HTTPS, enable LDAPS, and disable cleartext global catalog communication.
- B. Proxy HTTP traffic and migrate to a more secure directory service
- C. Disable the ports that are determined to contain authentication information
- D. Deploy a VPN between networks that transmits authentication information via cleartext
Answer: C
NEW QUESTION # 148
A security analyst is researching containerization concepts for an organization. The analyst is concerned about potential resource exhaustion scenarios on the Docker host due to a single application that is overconsuming available resources.
Which of the following core Linux concepts BEST reflects the ability to limit resource allocation to containers?
- A. Union filesystem overlay
- B. Cgroups
- C. Linux namespaces
- D. Device mapper
Answer: B
NEW QUESTION # 149
Given the following log snippet from a web server:
Which of the following BEST describes this type of attack?
- A. Brute-force
- B. Cross-site request forgery
- C. SQL injection
- D. Cross-site scripting
Answer: C
Explanation:
Clearly trying to pass SQL code for the user field, this is clearly an example of SQL injection.
Cross site forgery is when you try to bypass or change the web path to by pass the index.
NEW QUESTION # 150
A security engineer performed an assessment on a recently deployed web application. The engineer was able to exfiltration a company report by visiting the following URL:
www.intranet.abc.com/get-files.jsp?file=report.pdf
Which of the following mitigation techniques would be BEST for the security engineer to recommend?
- A. DLP
- B. WAF
- C. Firewall
- D. Input validation
Answer: D
Explanation:
Explanation
Input validation is a technique that checks the user input for any errors, malicious data, or unexpected values before processing it by the application. Input validation can prevent many common web application attacks, such as:
SQL injection, which exploits a vulnerability in the application's database query to execute malicious SQL commands.
Cross-site scripting (XSS), which injects malicious JavaScript code into the application's web page to execute on the client-side browser.
Directory traversal, which accesses files or directories outside of the intended scope by manipulating the file path.
In this case, the security engineer should recommend input validation as the best mitigation technique, because it would:
Prevent the exfiltration of a company report by validating the file parameter in the URL and ensuring that it matches a predefined list of allowed files or formats.
Enhance the security of the web application by filtering out any malicious or invalid input from users or attackers.
Be more effective and efficient than other techniques, such as firewall, WAF (Web Application Firewall), or DLP (Data Loss Prevention), which may not be able to detect or block all types of web application attacks.
NEW QUESTION # 151
A local university that has a global footprint is undertaking a complete overhaul of its website and associated systems. Some of the requirements are:
* Handle an increase in customer demand of resources
* Provide quick and easy access to information
* Provide high-quality streaming media
* Create a user-friendly interface
Which of the following actions should be taken FIRST?
- A. Deploy high-availability web servers.
- B. Enhance network access controls.
- C. Implement a content delivery network.
- D. Migrate to a virtualized environment.
Answer: C
Explanation:
A content delivery network (CDN) is a geographically distributed network of servers that can cache content close to end users, allowing for faster and more efficient delivery of web content, such as images, videos, and streaming media. A CDN can also handle an increase in customer demand of resources, provide high-quality streaming media, and create a user-friendly interface by reducing latency and bandwidth consumption. A CDN can also improve the security and availability of the website by mitigating DDoS attacks and providing redundancy. Verified Reference:
https://www.cloudflare.com/learning/cdn/what-is-a-cdn/
https://learn.microsoft.com/en-us/azure/cdn/cdn-overview
https://en.wikipedia.org/wiki/Content_delivery_network
NEW QUESTION # 152
Which of the following technologies should the company deploy to meet its security objectives? (Select TWO)_
- A. NIDS
- B. WAF
- C. Bastion host
- D. NAC
- E. Reverse proxy
- F. NGFW
Answer: A,D
NEW QUESTION # 153
A security analyst is reviewing the following vulnerability assessment report:
Which of the following should be patched FIRST to minimize attacks against Internet-facing hosts?
- A. Servers
- B. Server2
- C. Server1
- D. Server 3
Answer: C
NEW QUESTION # 154
A user experiences an HTTPS connection error when trying to access an Internet banking website from a corporate laptop. The user then opens a browser on a mobile phone and is able to access the same Internet banking website without issue. Which of the following security configurations is MOST likely the cause of the error?
- A. Certificate pinning
- B. TLS 1.2
- C. HSTS
- D. Client authentication
Answer: C
NEW QUESTION # 155
A developer wants to maintain integrity to each module of a program and ensure the code cannot be altered by malicious users.
Which of the following would be BEST for the developer to perform? (Choose two.)
- A. Make the DACL read-only.
- B. Encrypt with 3DES.
- C. Implement certificate-based authentication.
- D. Compress the program with a password.
- E. Verify MD5 hashes.
- F. Utilize code signing by a trusted third party.
Answer: A,F
Explanation:
Utilizing code signing by a trusted third party and making the DACL (discretionary access control list) read-only are actions that the developer can perform to maintain integrity to each module of a program and ensure the code cannot be altered by malicious users. Code signing is a technique that uses digital signatures to verify the authenticity and integrity of code, preventing unauthorized modifications or tampering. A trusted third party, such as a certificate authority, can issue and validate digital certificates for code signing. A DACL is an attribute of an object that defines the permissions granted or denied to users or groups for accessing or modifying the object. Making the DACL read-only can prevent unauthorized users or groups from changing the permissions or accessing the code. Implementing certificate-based authentication is not an action that the developer can perform to maintain integrity to each module of a program and ensure the code cannot be altered by malicious users, but a method for verifying the identity of users or devices based on digital certificates, preventing unauthorized access or impersonation. Verifying MD5 hashes is not an action that the developer can perform to maintain integrity to each module of a program and ensure the code cannot be altered by malicious users, but a method for checking the integrity of files based on cryptographic hash functions, detecting accidental or intentional changes or corruption. Compressing the program with a password is not an action that the developer can perform to maintain integrity to each module of a program and ensure the code cannot be altered by malicious users, but a method for reducing the size of files and protecting them with a password, preventing unauthorized access or extraction. Encrypting with 3DES is not an action that the developer can perform to maintain integrity to each module of a program and ensure the code cannot be altered by malicious users, but a method for protecting the confidentiality of data based on symmetric-key encryption algorithms, preventing unauthorized disclosure or interception. Verified Reference: https://www.comptia.org/blog/what-is-code-signing https://partners.comptia.org/docs/default-source/resources/casp-content-guide
NEW QUESTION # 156
A security architect updated the security policy to require a proper way to verify that packets received between two parties have not been tampered with and the connection remains private. Which of the following cryptographic techniques can be used to ensure the security policy is being enforced properly?
- A. PGP
- B. HMAC SHA256
- C. PBKDF2
- D. MD5-based envelope method
Answer: B
Explanation:
The company should use HMAC SHA256 as a cryptographic technique to ensure that packets received between two parties have not been tampered with and the connection remains private. HMAC stands for hash-based message authentication code, which is a method of generating a message authentication code using a cryptographic hash function and a secret key. HMAC can provide both integrity and authenticity of the packets, as well as resistance to replay attacks. SHA256 is a specific hash function that produces a 256-bit output. SHA256 is considered secure and widely used in various cryptographic applications. Verified References:
https://www.ericsson.com/en/blog/2021/7/cryptography-and-privacy-protecting-private-data
https://www.mdpi.com/journal/cryptography/special_issues/Preserve_Enhance_Privacy
https://link.springer.com/article/10.1007/s11432-021-3393-x
NEW QUESTION # 157
An organization is developing a disaster recovery plan that requires data to be backed up and available at a moment's notice.
Which of the following should the organization consider FIRST to address this requirement?
- A. Implement a change management plan to ensure systems are using the appropriate versions.
- B. Hire additional on-call staff to be deployed if an event occurs.
- C. Design an appropriate warm site for business continuity.
- D. Identify critical business processes and determine associated software and hardware requirements.
Answer: C
NEW QUESTION # 158
Due to adverse events, a medium-sized corporation suffered a major operational disruption that caused its servers to crash and experience a major power outage. Which of the following should be created to prevent this type of issue in the future?
- A. BCP
- B. BIA
- C. BCM
- D. RTO
- E. SLA
Answer: D
NEW QUESTION # 159
An energy company is required to report the average pressure of natural gas used over the past quarter. A PLC sends data to a historian server that creates the required reports.
Which of the following historian server locations will allow the business to get the required reports in an OT and IT environment?
- A. In the IT environment, allow PLCs to send data from the OT environment to the IT environment.
- B. In the OT environment, use a VPN from the IT environment into the OT environment.
- C. Use a screened subnet between the OT and IT environments.
- D. In the OT environment, allow IT traffic into the OT environment.
Answer: A
NEW QUESTION # 160
A company launched a new service and created a landing page within its website network for users to access the service. Per company policy, all websites must utilize encryption for any authentication pages. A junior network administrator proceeded to use an outdated procedure to order new certificates. Afterward, customers are reporting the following error when accessing a new web page:
NET:ERR_CERT_COMMON_NAME_INVALID. Which of the following BEST describes what the administrator should do NEXT?
- A. Request a new certificate with the correct subject alternative name that includes the new websites.
- B. Request a new certificate with a stronger encryption strength and the latest cipher suite.
- C. Request a new certificate with the same information but including the old certificate on the CRL.
- D. Request a new certificate with the correct organizational unit for the company's website.
Answer: C
NEW QUESTION # 161
A company wants to implement a cloud-based security solution that will sinkhole malicious DNS requests.
The security administrator has implemented technical controls to direct DNS requests to the cloud servers but wants to extend the solution to all managed and unmanaged endpoints that may have user-defined DNS manual settings.
Which of the following should the security administrator implement to ensure the solution will protect all connected devices?
- A. Implement DHCP options as follows:
- B. Implement firewall ACLs as follows
- C. Implement NAT as follows:
- D. Implement policy routing as follows:
Answer: D
NEW QUESTION # 162 
Answer:
Explanation:
An organization is planning for disaster recovery and continuity of operations.
INSTRUCTIONS
Review the following scenarios and instructions. Match each relevant finding to the affected host.
After associating scenario 3 with the appropriate host(s), click the host to select the appropriate corrective action for that finding.
Each finding may be used more than once.
If at any time you would like to bring back the initial state of the simul-ation, please click the Reset All button.
NEW QUESTION # 163
A security analyst needs to recommend a remediation to the following threat:
Which of the following actions should the security analyst propose to prevent this successful exploitation?
- A. Enable TLS 1.2.
- B. Patch the system.
- C. Update the antivirus.
- D. Install a host-based firewall.
Answer: A
NEW QUESTION # 164
A customer reports being unable to connect to a website at www.test.com to consume services. The customer notices the web application has the following published cipher suite:
Which of the following is the MOST likely cause of the customer's inability to connect?
- A. The default should be on port 80.
- B. The public key should be using ECDSA.
- C. The server name should be test.com.
- D. Weak ciphers are being used.
Answer: D
NEW QUESTION # 165
A junior developer is informed about the impact of new malware on an Advanced RISC Machine (ARM) CPU, and the code must be fixed accordingly. Based on the debug, the malware is able to insert itself in another process 'memory location. Which of the following technologies can the developer enable on the ARM architecture to prevent this type of malware?
- A. Noexecute
- B. Total memory encryption
- C. Virtual memory protection
- D. Execute never
Answer: D
Explanation:
Execute never is a technology that can be enabled on the ARM architecture to prevent malware from inserting itself in another process' memory location. Execute never (also known as XN or NX) is a feature that marks certain memory regions as non-executable, meaning that they cannot be used to run code. This prevents malware from exploiting buffer overflows or other memory corruption vulnerabilities to inject malicious code into another process' memory space.
NEW QUESTION # 166
An organization is in frequent litigation and has a large number of legal holds. Which of the following types of functionality should the organization's new email system provide?
- A. DLP
- B. E-discovery
- C. Encryption
- D. Privacy-level agreements
Answer: B
Explanation:
The organization's new email system should provide e-discovery functionality. E-discovery stands for electronic discovery, which is the process of identifying, preserving, collecting, processing, reviewing, analyzing, and producing electronically stored information (ESI) that is relevant to a legal matter. E-discovery can help the organization comply with legal holds, which are orders or notices to preserve relevant ESI when litigation is anticipated or ongoing. E-discovery can also help the organization reduce the costs and risks of litigation, as well as improve the efficiency and accuracy of the discovery process. Verified Reference:
https://www.techtarget.com/searchsecurity/definition/electronic-discovery
https://www.techtarget.com/searchsecurity/definition/legal-hold
https://www.ibm.com/topics/electronic-discovery
NEW QUESTION # 167
A security analyst is investigating a series of suspicious emails by employees to the security team. The email appear to come from a current business partner and do not contain images or URLs. No images or URLs were stripped from the message by the security tools the company uses instead, the emails only include the following in plain text.
Which of the following should the security analyst perform?
- A. Configure the email gateway to automatically quarantine all messages originating from the business partner.
- B. Pull the devices of the affected employees from the network in case they are infected with a zero-day virus.
- C. Contact the security department at the business partner and alert them to the email event.
- D. Block the IP address for the business partner at the perimeter firewall.
Answer: C
NEW QUESTION # 168
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