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| Certification Vendor: | CompTIA |
|---|---|
| Exam Name: | CompTIA SecurityX Certification Exam |
| Exam Number: | CAS-005 |
| Passing Score: | Pass/Fail (no scaled score) |
| Available Languages: | English |
| Exam Price: | $512 USD |
| Exam Format: | Multiple-choice, Performance-based |
| Exam Duration: | 165 minutes |
| Related Certifications: | CompTIA SecurityX (formerly CASP+) |
| Real Exam Qty: | Up to 90 |
| Certificate Validity Period: | 3 years |
| Sample Questions: | CompTIA CAS-005 Sample Questions |
| Exam Way: | Online (via Pearson VUE) or In-person (at Pearson VUE testing centers) |
| Pre Condition: | Minimum of 10 years of general hands-on IT experience, including 5 years of broad hands-on IT security experience. Recommended knowledge of Network+, Security+, CySA+, Cloud+, and PenTest+ or equivalent. |
| Official Syllabus URL: | https://www.comptia.org/certifications/securityx |
>> CAS-005 Reliable Test Topics <<
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NEW QUESTION # 32
A company migrated a critical workload from its data center to the cloud. The workload uses a very large data set that requires computational-intensive data processing. The business unit that uses the workload is projecting the following growth pattern:
- Storage requirements will double every six months.
- Computational requirements will fluctuate throughout the year.
- Average computational requirements will double every year.
Which of the following should the company do to address the business unit's requirements?
Answer: D
NEW QUESTION # 33
An auditor is reviewing the logs from a web application to determine the source of an incident. The web application architecture includes an internet-accessible application load balancer, a number of web servers in a private subnet, application servers, and one database server in a tiered configuration. The application load balancer cannot store the logs. The following are sample log snippets:
Web server logs:
192.168.1.10 - -
[24/Oct/2020 11:24:34 +05:00] "GET /bin/bash" HTTP/1.1" 200 453 Safari/536.36
192.168.1.10 - -
[24/Oct/2020 11:24:35 +05:00] "GET / HTTP/1.1" 200 453 Safari/536.36
Application server logs:
24/Oct/2020 11:24:34 +05:00 - 192.168.2.11 - request does not match a known local user. Querying DB
24/Oct/2020 11:24:35 +05:00 - 192.168.2.12 - root path. Begin processing Database server logs:
24/Oct/2020 11:24:34 +05:00
[Warning] 'option read_buffer_size1 unassigned value 0 adjusted to 2048
24/Oct/2020 11:24:35 +05:00
[Warning] CA certificate ca.pem is self-signed.
Which of the following should the auditor recommend to ensure future incidents can be traced back to the sources?
Answer: D
Explanation:
['REMOTE_ADDR'] received by the web servers.
Explanation:
The issue is tracing the original source of requests in a tiered architecture with a load balancer. The web server logs show internal IPs (192.168.1.10), not the external client IPs, because the load balancer forwards requests without preserving the source. Enabling theX-Forwarded-Forheader on the load balancer adds the client's original IP to the HTTP request headers, allowing downstream servers to log it. This ensures traceability without altering the architecture significantly.
Option A:Correct-X-Forwarded-For is the standard solution for preserving client IPs through load balancers.
Option B:A Host-based Intrusion Detection System (HIDS) detects anomalies but doesn't address IP traceability.
Option C:A trusted CA certificate fixes the self-signed warning but is unrelated to source tracking.
Option D:Stored procedures improve database security but don't help with IP logging.
Option E:Storing $_SERVER
['REMOTE_ADDR'] captures the loadbalancer's IP, not the client's, unless X-Forwarded-For is enabled.
NEW QUESTION # 34
A security engineer needs to review the configurations of several devices on the network to meet the following requirements:
* The PostgreSQL server must only allow connectivity in the 10.1.2.0/24 subnet.
* The SSH daemon on the database server must be configured to listen
to port 4022.
* The SSH daemon must only accept connections from a Single
workstation.
* All host-based firewalls must be disabled on all workstations.
* All devices must have the latest updates from within the past eight
days.
*All HDDs must be configured to secure data at rest.
* Cleartext services are not allowed.
* All devices must be hardened when possible.
Instructions:
Click on the various workstations and network devices to review the posture assessment results. Remediate any possible issues or indicate that no issue is found.
Click on Server A to review output data. Select commands in the appropriate tab to remediate connectivity problems to the pOSTGREsql DATABASE VIA ssh
WAP A
PC A
Laptop A
Switch A
Switch B:
Laptop B
PC B
PC C
Server A
Answer:
Explanation:
See the Explanation below for the solution.
Explanation:
WAP A: No issue found. The WAP A is configured correctly and meets therequirements.
PC A = Enable host-based firewall to block all traffic
This option will turn off the host-based firewall and allow all traffic to pass through. This will comply with the requirement and also improve the connectivity of PC A to other devices on the network. However, this option will also reduce the security of PC A and make it more vulnerable to attacks. Therefore, it is recommended to use other security measures, such as antivirus, encryption, and password complexity, to protect PC A from potential threats.
Laptop A: Patch management
This option will install the updates that are available for Laptop A and ensure that it has the most recent security patches and bug fixes. This will comply with the requirement and also improve the performance and stability of Laptop A. However, this option may also require a reboot of Laptop A and some downtime during the update process. Therefore, it is recommended to backup any important data and close any open applications before applying the updates.
Switch A: No issue found. The Switch A is configured correctly and meets the requirements.
Switch B: No issue found. The Switch B is configured correctly and meets the requirements.
Laptop B: Disable unneeded services
This option will stop and disable the telnet service that is using port 23 on Laptop B. Telnet is a cleartext service that transmits data in plain text over the network, which exposes it to eavesdropping, interception, and modification by attackers. By disabling the telnet service, you will comply with the requirement and also improve the security of Laptop B. However, this option may also affect the functionality of Laptop B if it needs to use telnet for remote administration or other purposes. Therefore,it is recommended to use a secure alternative to telnet, such as SSH or HTTPS, that encrypts the data in transit.
PC B: Enable disk encryption
This option will encrypt the HDD of PC B using a tool such as BitLocker or VeraCrypt. Disk encryption is a technique that protects data at rest by converting it into an unreadable format that can only be decrypted with a valid key or password. By enabling disk encryption, you will comply with the requirement and also improve the confidentiality and integrity of PC B's data. However, this option may also affect the performance and usability of PC B, as it requires additional processing time and user authentication to access the encrypted data. Therefore, it is recommended to backup any important data and choose a strong key or password before encrypting the disk.
PC C: Disable unneeded services
This option will stop and disable the SSH daemon that is using port 22 on PC C. SSH is a secure service that allows remote access and command execution over an encrypted channel. However, port 22 is thedefault and well-known port for SSH, which makes it a common target for brute-force attacks and port scanning. By disabling the SSH daemon on port 22, you will comply with the requirement and also improve the security of PC C. However, this option may also affect the functionality of PC C if it needs to use SSH for remote administration or other purposes. Therefore, it is recommended to enable the SSH daemon on a different port, such as 4022, by editing the configuration file using the following command:
sudo nano /etc/ssh/sshd_config
Server A. Need to select the following:
A black and white screen with white text Description automatically generated
NEW QUESTION # 35
An analyst needs to identify security event trends. The following is an excerpt from the SIEM:
Time
Alert
Source
Destination
20250407-UTC
Successful login from uncommon auth method in 24 hours
user1
AD-DC-01.corp
20250407-UTC
User accessed sensitive resources
user1
NFS-01/financial/share
20250407-UTC
Potential password spraying from host
10.10.15.100
iga-server.corp
20250407-UTC
Threshold exceeded user visiting high risk websites
user2
freehacks.com
20250407-UTC
Risk score exceeded for user
user1
bar.ru
20250407-UTC
NULL
NULL
NULL
Which of the following is the most practical way to identify trends?
Answer: C
Explanation:
The best answer is C. Correlating based on source field in batches of time . To identify trends in SIEM data, the analyst should group related events over a time window and correlate them around a common field. In this excerpt, user1 appears repeatedly across multiple alert types, including unusual authentication, access to sensitive resources, and elevated risk score. That pattern is exactly the sort of repeated behavior that becomes visible when events are correlated by source over time. CompTIA's official SecurityX objectives in the Security Operations domain include "Data analysis: indicators of malicious activity, trend analysis, statistics, and deduplication/correlation." That objective language directly supports this answer.
Why the other options are not best:
A narrows only one rule window and does not systematically identify trends across multiple event types. B may reduce volume, but reduction alone does not reveal trends. D is risky because noisy rules might still provide useful context, and disabling them based only on total daily alerts can hide meaningful multi-event patterns. The practical, operational ap proach is to correlate records by a shared field such as source/user across time batches so repeated suspicious behavior stands out.
References:
CompTIA SecurityX official exam objectives summary, Security Operations domain including trend analysis and correlation .
CompTIA SecurityX CAS-005 exam objectives PDF mirror with the same operational analysis themes.
NEW QUESTION # 36
You are a security analyst tasked with interpreting an Nmap scan output from company's privileged network.
The company's hardening guidelines indicate the following:
There should be one primary server or service per device.
Only default ports should be used.
Non-secure protocols should be disabled.
INSTRUCTIONS
Using the Nmap output, identify the devices on the network and their roles, and any open ports that should be closed.
For each device found by Nmap, add a device entry to the Devices Discovered list, with the following information:
The IP address of the device
The primary server or service of the device (Note that each IP should by associated with one service/port only) The protocol(s) that should be disabled based on the hardening guidelines (Note that multiple ports may need to be closed to comply with the hardening guidelines) If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.
Answer:
Explanation:
10.1.45.65 SFTP Server Disable 8080
10.1.45.66 Email Server Disable 415 and 443
10.1.45.67 Web Server Disable 21, 80
10.1.45.68 UTM Appliance Disable 21
NEW QUESTION # 37
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