OA Exams

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  • November 21, 2024

Question 41

What does “network congestion” refer to?

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.

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