Reinforce 350-401 concepts with active-recall study cards covering all 6 blueprint domains. Each card shows the question on the front and the correct answer with a full explanation on the back.
Flashcards work through active recall — the process of retrieving information from memory rather than passively re-reading it. Research consistently shows that active recall produces stronger, longer-lasting memory than re-reading study guides. For 350-401 preparation, this means flashcards are one of the highest-return study tools available.
Attempt recall first
Read the 350-401 question on each card, pause, and attempt to formulate the answer in your own words before revealing. This retrieval attempt — even if wrong — dramatically strengthens memory compared to immediately reading the answer.
Review wrong cards again
When you get a card wrong, note it and add it back to your review pile. Spaced repetition — seeing difficult cards more frequently — is the mechanism that makes flashcard study far more efficient than linear reading.
Study by domain
Group your 350-401 flashcard sessions by domain for the first 3–4 weeks. Master one domain before moving to the next. In the final week, shuffle all cards together to test cross-domain recall — which is what the real 350-401 exam requires.
Short sessions beat marathon reviews
20–30 flashcard cards per session, done daily, produces better retention than a single 200-card marathon session. Five short daily sessions per week over 4 weeks gives you over 400 total card reviews — enough to reliably pass 350-401.
Sample cards from the 350-401 flashcard bank. Read the question, think of the answer, then read the explanation below.
A network engineer configured VRF TENANT_A and moved the subinterfaces into the VRF. After the change, the CEF table shows the prefixes but the next-hop addresses are unreachable. What is the most likely cause?
The next-hop IP addresses are in the global routing table, not in the VRF.
When subinterfaces are moved into a VRF, the CEF table for that VRF will contain the learned prefixes, but the next-hop addresses must also be reachable within the same VRF. If the next-hop IP addresses reside in the global routing table instead of the VRF, the VRF will have no route to those next hops, causing them to be marked as unreachable. This is a common misconfiguration where the next-hop adjacency is not established within the VRF context.
An engineer needs to configure a switchport to carry traffic for multiple VLANs to a router using a single physical link. Which configuration should be applied on the switchport?
Configure the port as a trunk port.
A trunk port is specifically designed to carry traffic for multiple VLANs over a single physical link using IEEE 802.1Q encapsulation. This allows the switch to tag frames with VLAN IDs, enabling the router (often configured as a router-on-a-stick) to route between VLANs.
A network engineer is deploying a new WLAN and needs to ensure that client traffic is encrypted using AES with a pre-shared key. Which security configuration should be applied to the wireless SSID?
WPA2-PSK with AES
WPA2-PSK with AES is the correct choice because the requirement specifies AES encryption with a pre-shared key. WPA2-PSK (Wi-Fi Protected Access 2 – Pre-Shared Key) mandates AES-CCMP (Counter Mode Cipher Block Chaining Message Authentication Code Protocol) as the encryption protocol, providing strong, standards-compliant security for client traffic. This configuration directly satisfies the need for both AES encryption and PSK authentication.
A network administrator needs to allow SSH access to a router from the management network 192.168.1.0/24. Which configuration should be applied?
Apply a standard ACL to the vty lines.
A standard ACL applied to the vty lines is the proper method to restrict SSH access to a router from a specific source network. Standard ACLs filter based on source IP address, and when applied to the vty lines with the 'access-class' command, they control which management hosts can initiate inbound SSH sessions to the router.
Based on the exhibit, which traffic will be permitted outbound on GigabitEthernet0/0?
HTTP and HTTPS traffic from 192.168.1.0/24
The exhibit shows an access control list (ACL) applied outbound on GigabitEthernet0/0. The ACL permits TCP traffic from source 192.168.1.0/24 to any destination with a destination port of 80 (HTTP) or 443 (HTTPS). Therefore, only HTTP and HTTPS traffic from the 192.168.1.0/24 network is permitted outbound.
A network administrator is troubleshooting a BGP routing issue where routes from an eBGP neighbor are not being installed in the routing table. The 'show ip bgp' output shows the routes are received but not valid. What is the most likely cause?
The next-hop IP address is not reachable.
For a BGP route to be considered valid and installed in the routing table, the next-hop IP address must be reachable via an IGP or a static route. If the next hop is not reachable, the route will appear in the 'show ip bgp' output but will be marked as not valid (often with a 'r' for received but not valid). This is the most common cause when routes are received from an eBGP neighbor but not installed.
Your company has deployed a Cisco Catalyst 9300 switch stack as the distribution layer for a campus network. The network uses VLANs 10 (data), 20 (voice), and 30 (management). The switch stack is configured with DHCP snooping, Dynamic ARP Inspection (DAI), and IP Source Guard (IPSG) on access ports. Recently, users in VLAN 10 report intermittent connectivity issues. You notice that some users receive duplicate IP addresses from the DHCP server. The DHCP server is connected to a trunk port on the switch stack. After reviewing logs, you see that DHCPACK messages are being dropped on the trunk port. The DHCP snooping binding table shows entries for legitimate clients, but also some entries with MAC addresses from a different vendor. Which action should you take to resolve the issue?
Configure the trunk port connecting to the DHCP server as a trusted port for DHCP snooping.
The DHCP snooping feature treats all ports as untrusted by default, which means DHCP server messages (DHCPOFFER, DHCPACK, DHCPNAK) are dropped on untrusted ports. Since the DHCP server is connected to a trunk port and DHCPACK messages are being dropped, that trunk port must be explicitly configured as a trusted port for DHCP snooping using the 'ip dhcp snooping trust' interface command. This allows legitimate DHCP server responses to reach clients, resolving the duplicate IP address issue caused by clients not receiving their assigned addresses.
A network team uses Ansible to automate VLAN configuration on Cisco IOS devices. The playbook fails with the error 'Failed to connect to the host via ssh: Permission denied (publickey)'. The control node runs Ubuntu, and the network devices are configured with SSH key authentication. Which solution should the engineer implement?
Run ssh-add on the control node to add the private key to the SSH agent
The error 'Permission denied (publickey)' indicates that the SSH key is not being presented to the IOS device. Running ssh-add on the control node loads the private key into the SSH agent, which Ansible uses by default when connecting via SSH. This resolves the authentication failure without requiring a passphrase or changing the inventory.
A network engineer is automating configuration backups using Ansible. The playbook uses the ios_config module to retrieve running configurations from Cisco IOS XE devices. However, the playbook fails with a timeout error on a specific device. Other devices respond correctly. What is the most likely cause of the failure?
The device has incorrect SSH credentials configured in the Ansible vault.
The ios_config module in Ansible uses SSH to connect to Cisco IOS XE devices and execute commands. A timeout error on a specific device while others succeed strongly indicates an authentication or authorization failure, such as incorrect SSH credentials stored in the Ansible vault. This prevents the SSH session from being established, causing the playbook to wait until the timeout threshold is reached.
The 350-401 flashcard bank covers all 6 official blueprint domains published by Cisco. Cards are distributed proportionally, so domains with higher exam weight have more cards.
Domain Coverage
Architecture
Virtualization
Infrastructure
Network Assurance
Security
Automation
Both flashcards and practice questions are evidence-based study tools. The difference is in what they train:
Flashcards — concept retention
Best for memorising definitions, acronyms, protocol behaviours, command syntax, and conceptual distinctions. Use flashcards to build the foundational vocabulary that 350-401 questions assume you know.
Best in: weeks 1–3
Practice tests — application
Best for applying concepts to realistic scenarios, eliminating distractors, and building exam stamina.350-401 questions test scenario reasoning — not just recall — so practice tests are essential.
Best in: weeks 3–6
The most effective 350-401 study plan combines both: use flashcards for the first 2–3 weeks to build conceptual foundations, then shift to practice tests and mock exams in the final 2–3 weeks to apply and benchmark that knowledge. Most candidates who pass on their first attempt use both tools.
Yes. Courseiva provides free 350-401 flashcards across all official exam domains. Every card includes the correct answer and a full explanation of why it is right and why the distractors are wrong. The platform also includes topic-based practice, mock exams, and readiness tracking — no account required.
Courseiva has 1420+ original 350-401 flashcards across all 6 exam blueprint domains. New cards are added regularly as the question bank grows. All cards are written by certified engineers against the official Cisco exam objectives.
Courseiva flashcards are purpose-built for IT certification exams. Unlike generic flashcard platforms where content quality varies, every Courseiva card is mapped to the official 350-401 exam blueprint, written by engineers who hold the certification, and includes a full explanation of the correct answer and why the distractors are wrong. This explanation quality is what separates genuine learning from rote memorisation.
Courseiva is a web platform — an internet connection is required. For offline study, we recommend creating free Courseiva account, using the platform in your browser, and using your device's offline capabilities if your browser supports offline web apps.
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