What is the role of a subnet mask in IPv4 addressing?

It determines the default gateway for a subnet

It translates private IP addresses to public IP addresses

It identifies the network portion and the host portion of an IPv4 address

It assigns a unique IP address to each device on the network

A network architect is planning a new data center network. The architect has a /22 block (1024 addresses) and needs to create subnets for three tiers: web (200 devices), application (100 devices), and database (50 devices). The architect wants to minimize wasted addresses while leaving room for growth. Which subnet plan is most appropriate?

Web: /24, Application: /24, Database: /24

Web: /25, Application: /26, Database: /27

Web: /24, Application: /25, Database: /26

Web: /23, Application: /24, Database: /25

CiscoCertified Support Technician (CCST) Networking

Domain 2Objective 2

2.2. Identify IPv4 Addresses and Subnet Formats. 100-150 Practice Questions (Page 3)

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 38 practice questions to prepare you well beyond it. (estimate)

38questions here

8free pages

5concepts

Questions 11–15

11application · medium
A network engineer is troubleshooting a connectivity issue. A host has IP address 192.168.5.77 with subnet mask 255.255.255.248. The engineer needs to determine the usable host range for this subnet. Which range is correct?
Select an answer first
12application · medium
A network technician is assigning IP addresses to devices in a new branch office. The office uses the subnet 192.168.10.64/26. The technician needs to assign a static IP to a printer. Which IP address is a valid usable host address on this subnet?
Select an answer first
13foundation · easy
What is the role of a subnet mask in IPv4 addressing?
Select an answer first
14expert · hard
A network architect is planning a new data center network. The architect has a /22 block (1024 addresses) and needs to create subnets for three tiers: web (200 devices), application (100 devices), and database (50 devices). The architect wants to minimize wasted addresses while leaving room for growth. Which subnet plan is most appropriate?
Select an answer first
15application · easy
A network technician is configuring a new device and needs to set the subnet mask. The device will be part of the 10.1.1.0/28 network. Which subnet mask should the technician enter in dotted decimal notation?
Select an answer first

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2.2. Identify IPv4 Addresses and Subnet Formats. 100-150 Practice Questions (Page 3)

Questions 11–15

A network engineer is troubleshooting a connectivity issue. A host has IP address 192.168.5.77 with subnet mask 255.255.255.248. The engineer needs to determine the usable host range for this subnet. Which range is correct?

A network technician is assigning IP addresses to devices in a new branch office. The office uses the subnet 192.168.10.64/26. The technician needs to assign a static IP to a printer. Which IP address is a valid usable host address on this subnet?

What is the role of a subnet mask in IPv4 addressing?

A network technician is configuring a new device and needs to set the subnet mask. The device will be part of the 10.1.1.0/28 network. Which subnet mask should the technician enter in dotted decimal notation?

Keep studying — Addressing and Subnet Formats