CompTIA A+ Core 1 220-1201 - Domain 2 Networking

By Jordan Blake · Updated May 25, 2026

Questions25
Passing Score75%
Format100% Multiple Choice
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Question catalog for this preview

Catalog listing of the 5 preview questions for this quiz.

Question 1

A technician is setting up a wireless network in a warehouse with many metal shelves. Users at the far end experience poor signal. Which action would MOST improve coverage without replacing the existing AP?

Answer choices

  • A. Switch from 5 GHz to 2.4 GHz on all devices

  • B. Add a wireless range extender/repeater in the middle of the warehouse

  • C. Increase the DHCP lease time

  • D. Switch to Cat 6 Ethernet cabling

Question 2

Which protocol translates human-readable domain names (like www.google.com) into IP addresses?

Answer choices

  • A. DHCP

  • B. DNS (Domain Name System)

  • C. ARP

  • D. SNMP

Question 3

A user is unable to resolve website names but can connect to servers using IP addresses directly. Which command should the technician run FIRST to diagnose?

Answer choices

  • A. `ping 127.0.0.1`

  • B. `nslookup google.com`

  • C. `ipconfig /release`

  • D. `tracert 192.168.1.1`

Question 4

A technician needs to test if a specific network port is open on a remote server. Which command-line tool can test TCP port connectivity?

Answer choices

  • A. `ipconfig`

  • B. `nslookup`

  • C. `telnet [host] [port]` or `Test-NetConnection` (PowerShell)

  • D. `arp -a`

Question 5

Which of the following BEST describes the purpose of subnetting?

Answer choices

  • A. Encrypting traffic between network segments

  • B. Dividing a large network into smaller, more manageable logical segments to improve performance and security

  • C. Translating private IP addresses to public IP addresses

  • D. Resolving domain names to IP addresses