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NEW QUESTION # 114
(A database administrator wants users to be able to access resources remotely from home. Which of the following best describes how the administrator can enable this access without compromising the security of the stored data?)
Answer: B
Explanation:
The correct answer is A. Implement a virtual private network (VPN). CompTIA DataSys+ emphasizes secure remote access as a critical requirement for modern database environments, especially when users need to connect from untrusted networks such as home internet connections. A VPN provides a secure, encrypted tunnel between the user's device and the organization's internal network, allowing remote users to access database resources as if they were physically on-site.
By using strong encryption and authentication mechanisms, a VPN ensures that data transmitted over public networks cannot be intercepted, read, or altered by unauthorized parties. DataSys+ highlights VPNs as a best practice for protecting data-in-transit and preventing exposure of sensitive database services directly to the internet. VPNs also allow administrators to enforce centralized access controls, logging, and monitoring, further strengthening security.
Option B, implementing strong password policies, is an important security measure but does not by itself enable secure remote connectivity. Password policies address authentication strength, not secure network transport. Option C, configuring and deploying a firewall, is essential for controlling traffic flow, but a firewall alone does not provide secure remote access for home users. It typically blocks or allows connections rather than securely tunneling them. Option D, implementing a perimeter network (DMZ), is designed to host internet-facing services while isolating internal systems. Exposing databases through a perimeter network increases risk and is not recommended for direct user access to internal data.
CompTIA DataSys+ stresses the principle of minimizing attack surface. A VPN supports this principle by avoiding direct exposure of database services while still enabling authorized remote access. It also integrates well with multifactor authentication and identity management systems.
Therefore, the most secure and appropriate method to enable remote access without compromising stored data is to implement a virtual private network, making option A the correct and fully verified answer.
NEW QUESTION # 115
A database administrator realizes that a database does not have the correct columns. The administrator needs to modify the structure using a DDL command. Which of the following should the administrator use?
Answer: A
Explanation:
ALTER TABLE is a Data Definition Language (DDL) command used to modify the structure of an existing table, such as adding or changing columns.
NEW QUESTION # 116
Which of the following is part of logical database infrastructure security?
Answer: D
Explanation:
The option that is part of logical database infrastructure security is perimeter network. Perimeter network, also known as DMZ (Demilitarized Zone), is a network segment that lies between an internal network and an external network, such as the internet. Perimeter network provides an additional layer of security for the internal network by isolating and protecting the servers or services that are exposed to the external network, such as web servers, email servers, database servers, etc. Perimeter network also helps prevent unauthorized access or attacks from the external network to the internal network by using firewalls, routers, proxies, etc.
The other options are either part of physical database infrastructure security or not related to database infrastructure security at all. For example, surveillance is a method of monitoring and recording physical activities or events in a location or resource; biometric access is a device that uses biological characteristics to control access to a physical location or resource; cooling system is a device or system that regulates the temperature and humidity of a location or resource. References: CompTIA DataSys+ Course Outline, Domain
4.0 Data and Database Security, Objective 4.1 Given a scenario, implement database infrastructure security.
NEW QUESTION # 117
Which of the following are ORM tools? (Choose two.)
Answer: B,E
NEW QUESTION # 118
A database administrator would like to create a table named XYZ. Which of the following queries should the database administrator use to create the table?
Answer: C
Explanation:
The query that the administrator should use to create the table is option B. This query uses the CREATE TABLE statement to define a new table named XYZ with three columns: ID, Name, and Age. Each column has a data type and a constraint, such as NOT NULL, PRIMARY KEY, or CHECK. The other options either have syntax errors, use incorrect keywords, or do not specify the table name or columns correctly. References: CompTIA DataSys+ Course Outline, Domain 1.0 Database Fundamentals, Objective
1.1 Given a scenario, identify and apply database structure types.
NEW QUESTION # 119
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