Datadog Datadog Fundamentals Exam Actual Questions
Datadog Fundamentals (Page 6 )

Updated On: 19-Jul-2026

In the context of system memory, swap space is used to

  1. substitute disk space for RAM when RAM is at capacity.
  2. perform a bitwise swap on an arbitrary memory location
  3. define and export a block device for external file storage

Answer(s): A

Explanation:

Swap space allows the operating system to use disk storage as an extension of physical RAM when memory demand exceeds available RAM, enabling inactive memory pages to be temporarily moved to disk to free up RAM for active processes.



The metric system.cpu.system represents the percent of time the CPU spent running

  1. the virtual processor
  2. user space processes
  3. the kernel

Answer(s): C

Explanation:

The metric measures the percentage of CPU time spent executing kernel-level operations, which include system calls, interrupt handling, and other core operating system tasks.



Which of the following BEST describes the role of RAM in a computer system?

  1. It is where the applications and data that are in current use are kept
  2. It is a non-volatile, persistent storage device
  3. It is responsible for executing instructions of a computer program

Answer(s): A

Explanation:

RAM temporarily stores the applications and data that are actively in use so the CPU can access them quickly, providing fast read and write access compared to persistent storage.



A high number of page faults usually indicates insufficient

  1. storage
  2. RAM
  3. CPU

Answer(s): B

Explanation:

A high number of page faults indicates that the system frequently has to retrieve memory pages from disk because there is not enough physical memory available to keep active pages in RAM.



Which two IP addresses are located in the same subnet?

  1. 192.168.1.1/16 and 192.168.2.1/16
  2. 192.168.1.1/32 and 192.168.1.65/32
  3. 192.168.1.1/24 and 192.168.2.1/24

Answer(s): A

Explanation:

With a /16 prefix, the first 16 bits define the network portion, so both addresses share the same network (192.168.0.0/16) and therefore are in the same subnet.



For the IP address 192.168.1.1/24 what does the value/24 indicate?

  1. the subnet mask value assigned to the address
  2. the broadcast domain for the physical network segment
  3. the default gateway value assigned to the address

Answer(s): A

Explanation:

The /24 value represents the subnet mask length, indicating that the first 24 bits of the IP address define the network portion used to determine subnet membership.



Compared to TCP-based communication. UDP-based communication is

  1. more secure
  2. less reliable
  3. more compressed

Answer(s): B

Explanation:

UDP does not provide connection establishment, packet acknowledgment, retransmission, or ordering, which makes it less reliable than TCP.



Which of the following can be graphed with metrics exposed by Cloud Networking Monitoring?

  1. throughput
  2. UDP retransmits
  3. packet size

Answer(s): A

Explanation:

Cloud Networking Monitoring exposes metrics related to network traffic volume, allowing throughput to be measured and graphed over time based on the amount of data transmitted across network interfaces.



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