100-150 Question 61
Select 3A company is setting up a small office network and needs to ensure that devices in the network can communicate with each other while also accessing the internet. The IT administrator assigns IP addresses from the 192.168.1.0/24 range to all internal devices. Which of the following describes the type of addresses used and how they work in this scenario?
- A
These are private addresses, which allow internal communication but require NAT for internet access.
- B
These are public addresses, which allow both internal and external communication without additional configuration.
- C
Private addresses like these are not routable over the internet directly.
- D
Public addresses must be used for devices to access the internet without NAT.
- E
Private addresses are assigned by a globally recognized authority to ensure uniqueness.
Show answer and explanation
Correct answers: A, C, D
Explanation
The 192.168.1.0/24 range is part of the private IP address space, which is meant for internal network use. These addresses are not routable over the public internet and require Network Address Translation (NAT) to allow devices to access external resources. Public IP addresses, on the other hand, are globally unique and are necessary for direct internet communication without NAT.
- A. Correct.
Correct. Private addresses (e.g., 192.168.x.x) are used for internal communication and require Network Address Translation (NAT) to access the internet.
- B. Incorrect.
Incorrect. Public addresses, not private addresses, allow direct communication over the internet without NAT. The given address range belongs to the private IP space.
- C. Correct.
Correct. Private addresses are not routable over the internet directly and need to rely on NAT or a similar mechanism to communicate externally.
- D. Correct.
Correct. Public addresses are required for direct, NAT-less internet communication. NAT enables private IPs to appear as public IPs when accessing the internet.
- E. Incorrect.
Incorrect. Private addresses are not assigned by a globally recognized authority; they are defined by the IANA and can be used freely within private networks.