A network administrator is explaining to a junior technician why private IP addresses are used internally. Which statement accurately describes a key characteristic of private IP addresses?

They are assigned by IANA and require registration.

They are globally unique and can be routed on the internet.

They are not routable on the public internet and can be reused across different networks.

They are always assigned dynamically via DHCP.

A network has a single public IP and many internal devices. An internal server hosts a web application on port 443 and an FTP server on port 21. External users need to access both services. What is the most efficient configuration?

Use a different private IP for each service.

Assign a second public IP to the server.

Configure PAT to forward port 443 and port 21 on the public IP to the server's private IP.

Use static NAT to map the public IP to the server.

A network administrator is designing a network for a company that has two sites. Each site uses the same private IP range, 192.168.1.0/24. The sites are connected via a VPN. The administrator notices that devices at both sites have the same IP addresses. What is the most likely issue?

The VPN is using the wrong encryption protocol

The VPN is not encrypting traffic

The private IP ranges overlap, causing routing conflicts

The sites are using public IP addresses

CiscoCertified Support Technician (CCST) Networking

Domain 2Objective 1

2.1. Compare and Contrast Private Addresses and Public Addresses. 100-150 Practice Questions (Page 4)

Part of the Addressing and Subnet Formats domain, which makes up ~11% of our current practice bank. Cisco does not publish an official question count, but from its 50-minute exam (~20–35 total, ~2–4 in this domain), expect 1–1 from this objective — we provide 36 practice questions to prepare you well beyond it. (estimate)

36questions here

8free pages

5concepts

Questions 16–20

16expert · hard
A company is migrating from a classful addressing scheme to CIDR. They have a network with the address 172.16.0.0/16 and need to create subnets that each support up to 500 hosts. Which subnet mask should they use to maximize the number of subnets?
Select an answer first
17application · medium
A network administrator is explaining to a junior technician why private IP addresses are used internally. Which statement accurately describes a key characteristic of private IP addresses?
Select an answer first
18application · medium
A small business has 20 computers that need internet access. The ISP provides only one public IPv4 address. The network administrator configures the computers with private addresses and enables NAT on the router. Which address range is appropriate for the computers?
Select an answer first
19expert · hard
A network has a single public IP and many internal devices. An internal server hosts a web application on port 443 and an FTP server on port 21. External users need to access both services. What is the most efficient configuration?
Select an answer first
20expert · hard
A network administrator is designing a network for a company that has two sites. Each site uses the same private IP range, 192.168.1.0/24. The sites are connected via a VPN. The administrator notices that devices at both sites have the same IP addresses. What is the most likely issue?
Select an answer first

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2.1. Compare and Contrast Private Addresses and Public Addresses. 100-150 Practice Questions (Page 4)

Questions 16–20

A company is migrating from a classful addressing scheme to CIDR. They have a network with the address 172.16.0.0/16 and need to create subnets that each support up to 500 hosts. Which subnet mask should they use to maximize the number of subnets?

A network administrator is explaining to a junior technician why private IP addresses are used internally. Which statement accurately describes a key characteristic of private IP addresses?

A small business has 20 computers that need internet access. The ISP provides only one public IPv4 address. The network administrator configures the computers with private addresses and enables NAT on the router. Which address range is appropriate for the computers?

A network has a single public IP and many internal devices. An internal server hosts a web application on port 443 and an FTP server on port 21. External users need to access both services. What is the most efficient configuration?

A network administrator is designing a network for a company that has two sites. Each site uses the same private IP range, 192.168.1.0/24. The sites are connected via a VPN. The administrator notices that devices at both sites have the same IP addresses. What is the most likely issue?

Keep studying — Addressing and Subnet Formats