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| Certification Vendor: | CompTIA |
|---|---|
| Exam Name: | CompTIA DataSys+ Certification Exam |
| Exam Number: | DS0-001 |
| Passing Score: | 700 (scale 100โ900) |
| Related Certifications: | CompTIA Security+ CompTIA Data+ |
| Exam Format: | Performance-based, Multiple-choice |
| Available Languages: | English, Japanese |
| Exam Duration: | 90 minutes |
| Real Exam Qty: | Up to 90 |
| Exam Price: | $246 USD |
| Certificate Validity Period: | 3 years |
| Recommended Training: | CompTIA Official Study Guide CompTIA DataSys+ Learning Path |
| Exam Registration: | CompTIA Official Registration Pearson VUE Testing Center |
| Sample Questions: | CompTIA DS0-001 Sample Questions |
| Exam Way: | Online proctored or in-person at authorized test centers |
| Pre Condition: | No mandatory prerequisites; recommended 2โ3 years of experience in database administration or related roles |
| Official Syllabus URL: | https://www.comptia.org/en/certifications/datasys/ |
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NEW QUESTION # 100
A database administrator wants to create a database that does not have a predefined schema.
Which of the following tools should the administrator use to create this type of database?
(Choose two.)
Answer: A,E
NEW QUESTION # 101
Which of the following sets the age requirement for data that should be recovered after a major disaster?
Answer: A
Explanation:
The option that sets the age requirement for data that should be recovered after a major disaster is RPO. RPO, or Recovery Point Objective, is a metric that defines the maximum amount of data that can be lost or acceptable data loss in the event of a disaster or disruption. RPO indicates how frequently the data should be backed up or replicated to minimize the risk of data loss. RPO also sets the age requirement for data that should be recovered after a major disaster, as it determines how far back in time the recovery process should go. For example, if the RPO is one hour, then the data should be backed up or replicated every hour, and the recovery process should restore the data to the state it was in one hour before the disaster. The other options are either different metrics or not related to data recovery at all. For example, MTBF, or Mean Time Between Failures, is a metric that measures the average time that a system or component operates without failure; RTO, or Recovery Time Objective, is a metric that defines the maximum amount of time that can be taken to restore a system or service after a disaster or disruption; MTTF, or Mean Time To Failure, is a metric that measures the average time that a system or component operates until it fails. References: CompTIA DataSys+ Course Outline, Domain 5.0 Business Continuity, Objective 5.3 Given a scenario, implement backup and restoration of data.
NEW QUESTION # 102
Which of the following is a potential issue raised by enterprise database users?
Answer: B
Explanation:
A potential issue raised by enterprise database users is the need for concurrent access and multiuser updates. Concurrent access means that multiple users can access the same data at the same time, while multiuser updates mean that multiple users can modify the same data at the same time. These features are essential for enterprise database users who need to share and collaborate on data in real time. However, they also pose challenges such as maintaining data consistency, preventing conflicts or errors, and ensuring transaction isolation and durability. The other options are either not issues or not specific to enterprise database users. For example, the need for multiple views or windows into the same database may be a preference or a convenience, but not an issue; the need to manage long transactions may be a challenge for any database user, not just enterprise ones; the need to manually transfer records to paper may be an outdated or inefficient practice, but not an issue. Reference: CompTIA DataSys+ Course Outline, Domain 1.0 Database Fundamentals, Objective 1.3 Given a scenario, identify common database issues.
NEW QUESTION # 103
An automated script is using common passwords to gain access to a remote system. Which of the following attacks is being performed?
Answer: B
Explanation:
The attack that is being performed is brute-force. A brute-force attack is a type of attack that tries to guess a password or a key by systematically trying all possible combinations of characters or values until the correct one is found. A brute-force attack can use common passwords, such as "123456", "password", or "qwerty", as well as dictionaries, word lists, or patterns to speed up the process. A brute-force attack can target a remote system, such as a web server, an email account, or a network device, and gain unauthorized access to its data or resources. The other options are either different types of attacks or not related to password guessing. For example, a DoS, or Denial-of-Service, attack is a type of attack that floods a system with requests or traffic to overwhelm its capacity and prevent legitimate users from accessing it; an SQL injection attack is a type of attack that inserts malicious SQL statements into an input field or parameter of a web application to manipulate or compromise the underlying database; a phishing attack is a type of attack that sends fraudulent emails or messages that appear to come from a trusted source to trick users into revealing their personal or financial information. Reference: CompTIA DataSys+ Course Outline, Domain 4.0 Data and Database Security, Objective 4.4 Given a scenario, identify common types of attacks against databases.
NEW QUESTION # 104
(A business analyst queries the same few tables every quarter and does not want to write new SQL code every time. Which of the following would best support the business analyst's needs and allow the database administrator to optimize disk space?)
Answer: A
Explanation:
The correct answer is B. View. CompTIA DataSys+ documentation explains that views are virtual tables created from stored SQL queries that present data from one or more underlying tables without physically storing the data themselves. This makes views an ideal solution when users repeatedly query the same datasets and want consistent results without rewriting SQL statements.
In this scenario, the business analyst runs the same queries every quarter. By using a view, the analyst can simply query the view as if it were a table, eliminating the need to re-create complex SQL joins, filters, or aggregations each time. From a usability standpoint, views simplify access to data and reduce the likelihood of query errors, which aligns with DataSys+ objectives related to usability and abstraction.
From the database administrator's perspective, views also help optimize disk space. Because views do not store data physically (unlike tables), they consume minimal storage while still providing a reusable query structure. This is especially important in environments where storage efficiency and performance tuning are key responsibilities of the DBA.
Option A, a table, would require duplicating data, increasing disk usage and maintenance overhead. Option C, a function, is typically used to return a calculated value and is not designed to represent reusable multi-row query results for reporting purposes. Option D, a stored procedure, can encapsulate logic and queries, but it is generally used for executing operations rather than providing a simple, queryable dataset for analysts. Stored procedures may also introduce additional complexity and are less intuitive for ad-hoc querying.
CompTIA DataSys+ emphasizes views as a best practice for abstraction, security, and efficiency. They support repeated reporting needs while preserving storage resources and simplifying database management.
Therefore, B. View is the most accurate and fully aligned answer.
Guage
NEW QUESTION # 105
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