a) A loss of data packets b) An overload of network traffic resulting in slower performance c) Unauthorized access to a network d) A decrease in internet speed
Correct Answer: b) An overload of network traffic resulting in slower performance
Explanation: Network congestion occurs when there is excessive data traffic, causing delays and potential data loss during transmission.
Question 42
What is the primary use of a load balancer in a cloud environment?
a) To encrypt data b) To distribute workloads across multiple servers c) To monitor network performance d) To manage user permissions
Correct Answer: b) To distribute workloads across multiple servers
Explanation: Load balancers optimize resource utilization and enhance application availability by evenly distributing incoming traffic across multiple servers.
Question 43
What is a benefit of using SSL (Secure Sockets Layer) certificates?
a) They increase data transfer speeds b) They provide encryption for data transmitted over the internet c) They reduce storage costs d) They simplify network management
Correct Answer: b) They provide encryption for data transmitted over the internet
Explanation: SSL certificates establish encrypted links between web servers and browsers, ensuring secure communications over the internet.
Question 44
What is the purpose of a DMZ (Demilitarized Zone) in network security?
a) To protect internal networks from external threats b) To increase data transfer speeds c) To provide a backup for data storage d) To manage user access
Correct Answer: a) To protect internal networks from external threats
Explanation: A DMZ is a separate network segment that adds an additional layer of security by isolating public-facing services from the internal network.
Question 45
What does a subnet mask do?
a) It provides a unique IP address to each device b) It defines the range of IP addresses in a subnet c) It encrypts data for security d) It manages user permissions
Correct Answer: b) It defines the range of IP addresses in a subnet
Explanation: A subnet mask determines which portion of an IP address identifies the network and which part identifies the host within that network.
Question 46
What is the primary role of a database server?
a) To provide data backup b) To store and manage data for applications c) To enhance network security d) To monitor user access
Correct Answer: b) To store and manage data for applications
Explanation: Database servers handle data storage and retrieval, allowing applications to efficiently manage large volumes of data.
Question 47
What is a common characteristic of a file server?
a) It is primarily used for hosting applications b) It provides storage for files that can be accessed by multiple users c) It encrypts data d) It manages user permissions
Correct Answer: b) It provides storage for files that can be accessed by multiple users
Explanation: File servers centralize file storage, enabling users to access and share files across a network efficiently.
Question 48
What is the primary purpose of an application server?
a) To store backup data b) To host applications and provide business logic c) To encrypt sensitive data d) To monitor network traffic
Correct Answer: b) To host applications and provide business logic
Explanation: Application servers facilitate the execution of applications, managing business logic and serving requests from client devices.
Question 49
What is a common feature of a data warehouse?
a) It stores only real-time data b) It is optimized for analysis and reporting c) It requires constant internet access d) It manages user permissions
Correct Answer: b) It is optimized for analysis and reporting
Explanation: Data warehouses consolidate and organize large volumes of data from various sources to support business intelligence and analytical queries.
Question 50
What does “scalability” refer to in a cloud environment?
a) The ability to add more users to a network b) The capacity to increase resources as demand grows c) The speed of data transfer d) The security of data stored in the cloud
Correct Answer: b) The capacity to increase resources as demand grows
Explanation: Scalability allows cloud services to adjust resources dynamically to meet changing demands without interruption.