220-1201 · domain
Networking
Domain 2 (Networking) covers 23% of Core 1 220-1201: OSI and TCP/IP models, ports and protocols, IP addressing and subnetting, wireless standards and security, network types and hardware, plus CLI tools like ipconfig, ping, tracert, nslookup, netstat, and network troubleshooting methodology. Questions are scenario-based, asking you to diagnose connectivity failures or pick the correct configuration.
Focused practice
Practice Networking questions
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What this domain covers
What to know about Networking
Diagnose network faults by layer: verify physical link, then IP configuration, then name resolution, then ports and services. The single most important skill is reading a scenario and choosing the correct command or setting, especially distinguishing DNS, DHCP, and wireless security problems.
IPv4/IPv6 addressing, subnetting, private ranges, APIPA, and default gateway configuration
Command-line tools: ipconfig, ping, tracert, nslookup, netstat, and troubleshooting methodology
Watch out for
Common Networking exam traps
- ▸Confusing DNS failure with DHCP failure: name resolution fails but direct IP access works, so test with nslookup or ping by name.
- ▸Assuming a link light means working connectivity; a dead link light points to cable, NIC, or switch port, not software.
- ▸Mixing up WPA2-Personal (pre-shared key) with WPA2-Enterprise (RADIUS authentication) when a client wants easy employee access.
Question index
All Networking questions (7)
Click any question to see the full explanation, or start a practice session above.
A company has a network with multiple VLANs. Users on VLAN 10 need to access a server on VLAN 20, but they cannot. The technician verifies that the switch ports are correctly assigned and the server is reachable from other VLANs. Which of the following is the MOST likely cause?
Hard2A technician is configuring a small office wireless router for a client. The client wants the network to be as secure as possible while still allowing employees to connect easily with a pre-shared key. The router supports WPA2, WPA3, WPA, and WEP. Which security protocol should the technician select?
Medium3A small business wants to add a guest wireless network that allows visitors to access the internet but prevents them from reaching internal company resources. The existing network uses a single wireless router with a default configuration. Which of the following should a technician implement?
Medium4A user reports that their workstation cannot connect to any network resources. The technician notices the network cable is plugged into the wall jack and the NIC, but the link light is off. Which of the following should the technician check FIRST?
Easy5A user reports that they cannot access any websites by typing domain names, but they can access websites by entering IP addresses directly. The technician suspects a DNS issue. Which command should the technician use first to verify the DNS server settings on the user's Windows 10 computer?
Easy6A technician is configuring a wireless access point for a small office. The office needs to support both older laptops that only support 2.4 GHz and newer devices that support 5 GHz. The technician wants to ensure optimal performance and compatibility. Which two of the following should the technician configure? (Choose two.)
Medium7A technician is troubleshooting a workstation that can access local network resources but cannot reach any websites on the internet. The technician runs ipconfig and sees the IP address, subnet mask, and default gateway are correct. Which of the following should the technician check NEXT?
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Frequently asked questions
- What does the Networking domain cover on the 220-1201 exam?
- Diagnose network faults by layer: verify physical link, then IP configuration, then name resolution, then ports and services. The single most important skill is reading a scenario and choosing the correct command or setting, especially distinguishing DNS, DHCP, and wireless security problems.
- How many questions are in this domain?
- This page lists all 7 Networking questions in the 220-1201 question bank. The actual exam draws from this domain proportionally to its weighting in the official exam blueprint.
- What is the best way to practise this domain?
- Start with a short focused session (10 questions) to identify gaps, then work through explanations. Repeat with a longer session once the weak areas feel solid.
- Can I practise only Networking questions?
- Yes — the session launcher on this page filters questions to this domain only. Choose any session length for inline explanations and scoring.