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NEW QUESTION # 44
(Evidence from logs shows multiple ongoing attempts to connect with a default account that was disabled.
Which of the following best describes this type of attack?)
Answer: C
Explanation:
The correct answer is B. Brute-force. CompTIA DataSys+ identifies brute-force attacks as a common authentication-based threat in database and system environments. A brute-force attack involves repeatedly attempting to authenticate to an account by systematically trying different credentials or repeatedly targeting known or default accounts in hopes that one attempt will succeed. The presence of multiple ongoing connection attempts in logs is a key indicator of this attack type.
In this scenario, the attacker is attempting to connect using a default account, even though it has been disabled. Default accounts are well-known targets because attackers are often aware of their usernames and may assume weak or unchanged credentials. DataSys+ emphasizes that attackers frequently attempt brute- force or password-spraying attacks against default or administrative accounts, especially when exposed services are accessible over the network. Even if the account is disabled, repeated attempts still generate log entries and clearly signal brute-force behavior.
Option A, malware, typically involves malicious software executing on a system and does not primarily manifest as repeated login attempts in authentication logs. Option C, on-path (man-in-the-middle) attacks, involve intercepting or altering network traffic between two parties and would not appear as repeated failed authentication attempts from a single source. Option D, SQL injection, targets application input fields and database queries, not authentication mechanisms tied to account logins.
CompTIA DataSys+ stresses the importance of monitoring logs for failed authentication attempts as part of intrusion detection and security auditing. It also highlights defensive controls such as account lockout policies, disabling default accounts, strong authentication mechanisms, and intrusion detection systems to mitigate brute-force attacks.
Because the defining characteristic in the scenario is repeated connection attempts against an account, the activity is best classified as a brute-force attack, making option B the correct and fully verified answer.
NEW QUESTION # 45
Which of the following are the best resources for monitoring potential server issues? (Choose two.)
Answer: A,C
Explanation:
The two resources that are best for monitoring potential server issues are CPU usage and memory usage. CPU usage is the percentage of time that the processor (CPU) of the server is busy executing instructions or processes. CPU usage indicates how much workload the server can handle and how fast it can process requests. High CPU usage may affect the performance or availability of the server and cause delays or errors.
Memory usage is the amount of physical memory (RAM) or virtual memory (swap space) that the server uses to store data or run applications. Memory usage indicates how much space the server has to store temporary or intermediate data or results. High memory usage may affect the performance or availability of the server and cause swapping or paging. The other options are either not relevant or not direct indicators of server health. For example, user connections are the number of users who are connected to a database server at any given time; firewall usage is the amount of data that passes through a firewall device or software; index usage is the frequency or efficiency of using indexes on tables to speed up queries; query execution is the process of running SQL statements on a database server. References: CompTIA DataSys+ Course Outline, Domain 3.0 Database Management and Maintenance, Objective 3.2 Given a scenario, monitor database performance.
NEW QUESTION # 46
Which of the following resources is the best way to lock rows in SQL Server?
Answer: C
Explanation:
The resource that is the best way to lock rows in SQL Server is RID. RID, or Row IDentifier, is an attribute that uniquely identifies each row in a heap table in SQL Server. A heap table is a table that does not have a clustered index, which means that the rows are not stored in any particular order. A RID consists of the file number, page number, and slot number of the row in the database. A RID can be used to lock rows in SQL Server to prevent concurrent access or modification by other transactions or users. A RID lock is a type of lock that locks a single row using its RID. A RID lock can be applied using the HOLDLOCK or XLOCK hints in a SELECT statement. The other options are either not related or not effective for this purpose. For example, TID, or Transaction IDentifier, is an attribute that uniquely identifies each transaction in a database; SID, or Security IDentifier, is an attribute that uniquely identifies each user or group in a Windows system; PID, or Process IDentifier, is an attribute that uniquely identifies each process in an operating system.
NEW QUESTION # 47
Which of the following can be used to protect physical database appliances from damage in a server room? (Choose two.)
Answer: C,F
Explanation:
The two options that can be used to protect physical database appliances from damage in a server room are fire suppression systems and cooling systems. Fire suppression systems are systems that detect and extinguish fires in a server room using water, gas, foam, or other agents.
Fire suppression systems help prevent damage to physical database appliances caused by fire hazards such as overheating, electrical faults, or flammable materials. Cooling systems are systems that regulate the temperature and humidity in a server room using fans, air conditioners, chillers, or other devices. Cooling systems help prevent damage to physical database appliances caused by excessive heat or moisture that may affect their performance or lifespan. The other options are either not related or not effective for this purpose. For example, biometric access systems, camera systems, and key card systems are systems that control the access to a server room using fingerprints, facial recognition, video surveillance, or magnetic cards; these systems help prevent unauthorized entry or theft of physical database appliances, but not damage caused by environmental factors; database control systems are systems that manage the functionality and security of databases using software tools or commands; these systems help protect logical database appliances from errors or attacks, but not physical damage caused by environmental factors.
NEW QUESTION # 48
A database administrator needs to ensure continuous availability of a database in case the server fails. Which of the following should the administrator implement to ensure high availability of the database?
Answer: B
Explanation:
The option that the administrator should implement to ensure high availability of the database is replication.
Replication is a process that copies and synchronizes data from one database server (the primary or source) to one or more database servers (the secondary or target). Replication helps ensure high availability of the database by providing redundancy, fault tolerance, and load balancing. If the primary server fails, the secondary server can take over and continue to serve the data without interruption or data loss. The other options are either not related or not suitable for this purpose. For example, ETL is a process that extracts, transforms, and loads data from one source to another for analysis or reporting purposes; database dumping is a process that exports the entire content of a database to a file for backup or migration purposes; backup and restore is a process that copies and recovers data from a backup device or media in case of a disaster or corruption. References: CompTIA DataSys+ Course Outline, Domain 5.0 Business Continuity, Objective 5.3 Given a scenario, implement replication of database management systems.
NEW QUESTION # 49
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