Questions 1–200 of 220
After a customer approves a vendor's firewall access, what should happen before the change, and how would you verify it afterward?
Asked in 4 of 337 interviews · last asked Oct 12 · Scenario · Mid-level
Show answer
Before changing the firewall, follow the change process: record approval, confirm the exact access needed, and agree on a change window. Back up the configuration and prepare a rollback plan. Afterward, test the vendor connection, check firewall logs, and confirm unauthorized access remains blocked. Get customer or vendor confirmation, document the results, and close the change ticket.
- Confirm source and destination addresses, ports, protocol, and direction; allow only the required access.
- Obtain any required internal change approval and notify affected teams before implementation.
- Test from the vendor’s actual connection and verify the intended application works.
- Record the final rules and test results; set an expiry if access is temporary.
What the interviewer checks: The interviewer is checking whether you follow change control, limit access, verify results, and document completion.
Other ways it was asked
- “After a customer approves a vendor connection to its environment, what must happen before changing the firewall?”
- “Once a firewall change for vendor access is authorized, how do you verify it worked and close out the change?”
- “After a customer approves a firewall port change for vendor access, what steps should happen before the change, and how would you verify and close it out?”
How would you check and troubleshoot connectivity between two computers or servers?
Asked in 3 of 337 interviews · last asked Sep 19 · Scenario · Junior
Other ways it was asked
- “How would you test connectivity between two servers?”
- “How would you check the connection between two servers?”
- “How do you troubleshoot a connectivity issue between two computers?”
Walk me through how you would troubleshoot a network issue.
Asked in 3 of 337 interviews · last asked Aug 4 · Scenario · Mid-level
Other ways it was asked
- “How do you approach network troubleshooting?”
- “How do you troubleshoot a network issue?”
- “Walk through how you would troubleshoot a major network issue.”
Tell me about a time you handled a significant network event. What happened, what steps did you take, and what tools or applications did you use to identify and resolve the problem?
Asked in 2 of 337 interviews · last asked Apr 23 · Behavioral · Mid-level
Other ways it was asked
- “Tell me about a time you responded to a Level 1 or Level 2 incident or network outage. What was the issue, and how did you resolve it?”
What command would you use in Linux to list the ports listening on a server?
Asked in 2 of 337 interviews · last asked Jul 30 · Tooling · Junior
Other ways it was asked
- “How can you check which ports a server is listening on?”
A user cannot connect to the company Wi-Fi, but other users can. How would you troubleshoot the issue step by step?
Asked in 2 of 337 interviews · last asked Aug 9 · Scenario · Mid-level
Other ways it was asked
- “How would you troubleshoot a user who cannot connect to Wi‑Fi?”
How would you identify the cause of a technical issue involving DHCP?
Asked once · last asked Feb 25 · Scenario · Mid-level
Other ways it was asked
- “How would you resolve a technical issue involving DHCP?”
What information do you generally need from networking teams when you are starting a project?
Asked once · last asked Oct 6 · Scenario · Mid-level
Other ways it was asked
- “What challenges do you face when gathering information from networking teams at the start of a project?”
How do you filter Wireshark traffic by source or destination IP address?
Asked once · last asked Oct 16 · Tooling · Junior
How would you troubleshoot a down fiber connection between two routers in the same room, where the connection runs from an optic to a patch panel, through structured fiber to another patch panel, and then to the other router?
Asked once · last asked Feb 3 · Scenario · Mid-level
How would you troubleshoot a machine connected to a switch port with an assigned VLAN that does not get an IP address dynamically, but works and communicates when configured with a static IP?
Asked once · last asked Feb 3 · Scenario · Mid-level
How would you design a network for a doctor's office with up to 100 client devices, 10 servers, a secure remote connection to the hospital, and wireless guest access to the internet but not the intranet?
Asked once · last asked Feb 3 · Design · Senior
If your application is running in production but cannot reach a database resource, how would you investigate the problem and identify its root cause?
Asked once · last asked Feb 9 · Scenario · Senior
If a call connects but has no audio for the first two seconds, even though signaling arrives on time, how would you troubleshoot the issue?
Asked once · last asked Feb 17 · Scenario · Mid-level
Other ways it was asked
- “What troubleshooting procedure would you use to investigate a call that has no audio for the first two seconds, and where would you check the logs?”
How would you set up a new ISDN or GSM gateway?
Asked once · last asked Feb 17 · Tooling · Mid-level
Other ways it was asked
- “How would you independently configure an ISDN or GSM gateway supplied by a reseller?”
How would you estimate the required bandwidth and internet speed for an office with 30 agents making calls through a dialer and 15 other users browsing the internet, including VPN usage?
Asked once · last asked Feb 17 · Scenario · Mid-level
Using the existing documentation as a baseline, how would you validate the infrastructure and understand the environment well enough to contribute?
Asked once · last asked Feb 19 · Scenario · Mid-level
A user cannot open a file at a network path such as \\server1\fileshare\filename. What would you check next?
Asked once · last asked Feb 24 · Scenario · Mid-level
How do you perform upgrades on F5 load balancers?
Asked once · last asked Feb 24 · Tooling · Mid-level
How would you check whether a system’s LAN card or port is working without connecting a LAN cable?
Asked once · last asked Feb 27 · Scenario · Junior
When planning a network consolidation, how do you define the target environment and identify the source networks or systems?
Asked once · last asked Mar 6 · Scenario · Mid-level
What is the difference between upgrading a network switch and upgrading its NX-OS software?
Asked once · last asked Mar 6 · Concept · Mid-level
If someone reports an issue with a machine and gives you its IP address, how would you troubleshoot and verify the issue, including which device you would log in to and what you would check?
Asked once · last asked Mar 6 · Scenario · Mid-level
How would you set up an Ansible environment and organize and manage playbooks?
Asked once · last asked Mar 11 · Tooling · Mid-level
How would you manage Ansible inventory, including how it is populated and how inventory changes are tracked?
Asked once · last asked Mar 11 · Tooling · Mid-level
How do you determine whether network changes should be made during a maintenance window or regular business hours?
Asked once · last asked Mar 20 · Scenario · Mid-level
How would you troubleshoot a report that a user is experiencing slow network connectivity? What would your thought process be?
Asked once · last asked Mar 20 · Scenario · Mid-level
When configuring Arista switches through CloudVision Portal, how do you generally apply the configuration?
Asked once · last asked Mar 20 · Tooling · Mid-level
If you found that bandwidth between access and core was an issue, what would you do, and how would you determine that was the cause?
Asked once · last asked Mar 23 · Scenario · Mid-level
What circumstances, if any, justify making a network change without formal change control?
Asked once · last asked Mar 23 · Scenario · Mid-level
What are the limitations of IoT in rural areas?
Asked once · last asked Mar 24 · Concept · Mid-level
If a server’s IPMI management cable has link lights on both ends but you can’t ping its management IP, where would you investigate, what would you look for on the switch, and what would you do if the MAC address didn’t match?
Asked once · last asked Mar 26 · Scenario · Senior
Can you explain out-of-band management, what a BMC does, and how you would use it?
Asked once · last asked Mar 26 · Tooling · Mid-level
What is zero-touch provisioning (ZTP), and how is it used in a data center?
Asked once · last asked Mar 26 · Concept · Mid-level
In what situations would a data center technician need to replace a network optic?
Asked once · last asked Mar 26 · Scenario · Mid-level
If a server does not receive its boot file during PXE boot, how would you check the DHCP options on Linux and troubleshoot the issue?
Asked once · last asked Mar 26 · Scenario · Mid-level
What is PXE, and how is it used to boot a server over the network?
Asked once · last asked Mar 26 · Concept · Junior
If a server's physical network link is down and it cannot download its boot file, how would you troubleshoot the connection?
Asked once · last asked Mar 26 · Scenario · Mid-level
How would you automate firmware upgrades across multiple switches and firewalls?
Asked once · last asked Apr 6 · Scenario · Senior
As a network design engineer, how would you design a network to be efficient and support future expansion?
Asked once · last asked Apr 7 · Design · Senior
When installing a router in a data center, what process do you follow to determine the rack elevation and spacing, choose the correct vendor-provided SFP, and complete the installation?
Asked once · last asked Apr 7 · Scenario · Mid-level
How would you diagnose a Fortinet device using the command line?
Asked once · last asked Apr 13 · Tooling · Mid-level
What network problems are common, and how would you diagnose them?
Asked once · last asked Apr 15 · Scenario · Mid-level
How would you diagnose a network problem on a web server, and which tools would you use?
Asked once · last asked Apr 15 · Scenario · Mid-level
Which ping options can help diagnose network connectivity, and what information do they provide?
Asked once · last asked Apr 15 · Tooling · Junior
If a softphone cannot connect to a softswitch despite correct client settings, how would you begin diagnosing the issue on the server?
Asked once · last asked Apr 15 · Scenario · Mid-level
If the logs show no connection attempts and the client settings are correct, what else would you check, and which tools would you use?
Asked once · last asked Apr 15 · Scenario · Mid-level
If a service's port is listening but the service is still unreachable, what other causes would you check?
Asked once · last asked Apr 15 · Scenario · Mid-level
How would you upgrade a switch using Cisco DNA Center?
Asked once · last asked Apr 15 · Tooling · Mid-level
How would you identify a network routing issue, and which commands or troubleshooting steps would you use?
Asked once · last asked Apr 23 · Scenario · Mid-level
A backend application can reach api.google.com on your machine but cannot reach it after deployment to production. How would you troubleshoot the issue, and what could be wrong?
Asked once · last asked Apr 24 · Scenario · Mid-level
When troubleshooting CyberArk Vault performance, why would you check network latency, and what would you try to validate?
Asked once · last asked Apr 25 · Scenario · Senior
A user working from home is connected to the VPN and can usually access the company file share through a mapped drive, but now cannot. How would you troubleshoot the issue?
Asked once · last asked Apr 27 · Scenario · Mid-level
You receive a monitoring alert that the single firewall at a branch site has gone down. What are the first five steps you would take?
Asked once · last asked Apr 27 · Scenario · Senior
How would you design a highly available network for a building if money were no issue?
Asked once · last asked Apr 27 · Design · Senior
If traffic is supposed to pass through a firewall but is not, how would you troubleshoot it?
Asked once · last asked Apr 27 · Scenario · Mid-level
How would you safely upgrade a pair of redundant building core switches from the 4500 chassis series to the 9500 series?
Asked once · last asked Apr 27 · Scenario · Senior
Other ways it was asked
- “How would you prepare for a migration from redundant 4500-series core switches to 9500-series switches?”
One user's wired office PC cannot access the internet, printers, or applications, while everyone else works normally. As a network engineer with router and switch access, how would you troubleshoot this, and which commands would you run?
Asked once · last asked Apr 27 · Scenario · Mid-level
Other ways it was asked
- “I come to the office, plug my PC into the wall, and nothing works: I can’t get online, print, or access any applications, while everyone else is working fine. As the network engineer with access to routers and switches, how would you troubleshoot the issue, and what commands would you run?”
How would you use Nmap to check whether an HTTP service is running on a particular IP address?
Asked once · last asked Apr 30 · Tooling · Junior
Can you explain your understanding of TCP/IP fundamentals and describe how you would troubleshoot a DNS, DHCP, or VPN connectivity issue, including what you would check first and how you would narrow down the cause?
Asked once · last asked May 1 · Scenario · Junior
What are Aruba AirWave, Aruba Central, Aruba Activate, and ClearPass used for in enterprise network management?
Asked once · last asked May 5 · Concept · Mid-level
If you cannot access any website in your browser, what troubleshooting steps would you take to fix it?
Asked once · last asked May 6 · Scenario · Junior
How can you check network settings in Linux, and what command would you use?
Asked once · last asked May 12 · Tooling · Junior
How would you test a TCP connection to a remote server on port 80?
Asked once · last asked May 13 · Scenario · Mid-level
How can you display a server's routing table using the ip command?
Asked once · last asked May 18 · Tooling · Junior
From a server's routing table, how can you identify its outgoing network interface and IP address?
Asked once · last asked May 18 · Scenario · Junior
How do you identify a server's primary IP address for SSH or ping, and is it shown in the routing table?
Asked once · last asked May 18 · Scenario · Junior
How would you configure and qualify network equipment from scratch by reviewing requirements and testing the device on a network?
Asked once · last asked May 26 · Scenario · Mid-level
How do you plan and perform a Cisco ACI upgrade, and how do you manage policy or model changes?
Asked once · last asked Jun 3 · Tooling · Senior
What factors do you consider when configuring and segmenting an office network, and how does network size affect your approach?
Asked once · last asked Jun 16 · Scenario · Mid-level
Tell me about a technical issue you identified during partner connectivity checks, how you resolved it, and what you improved.
Asked once · last asked Jun 18 · Behavioral · Mid-level
How would you troubleshoot a communication problem between two microservices?
Asked once · last asked Jun 19 · Scenario · Mid-level
How do you use tcpdump to capture traffic from a specific IP address going to a specific port? What command and filters would you use?
Asked once · last asked Jun 26 · Tooling · Mid-level
In Windows, what command shows which process is listening on a specific port, and what options would you use to show the process and port?
Asked once · last asked Jun 26 · Tooling · Mid-level
Where do you find the Windows logs for the Network Policy Server (NPS) service?
Asked once · last asked Jun 26 · Tooling · Mid-level
If a website is not reachable in the browser, how do you debug it?
Asked once · last asked Jul 16 · Scenario · Mid-level
If DNS is resolving the IP correctly but you still cannot reach the website, what might be wrong?
Asked once · last asked Jul 16 · Scenario · Mid-level
How do you use automation in network management, and what value do templates and scripting provide when configuring switches, routers, and firewalls?
Asked once · last asked Jul 16 · Tooling · Mid-level
How would you manage the technical integration of two networking portfolios after an acquisition?
Asked once · last asked Jul 16 · Scenario · Senior
Other ways it was asked
- “How would you manage the technical integration of Aruba and Juniper networking portfolios after an acquisition?”
How would you troubleshoot a customer report that downloads work in Chrome but fail in Safari, and what key details would you collect first?
Asked once · last asked Jul 16 · Scenario · Mid-level
What questions do you ask and what methodology do you use to troubleshoot connectivity and latency issues in a large multi-cloud and on-prem environment?
Asked once · last asked Jul 16 · Scenario · Senior
How would you use Forward Networks to help a customer troubleshoot connectivity issues after gathering initial details?
Asked once · last asked Jul 16 · Tooling · Mid-level
How would you design a change control procedure for an end-to-end network environment?
Asked once · last asked Jul 16 · Scenario · Senior
How are you seeing the AI boom impact the networking and sales engineering landscape compared to previous technology shifts?
Asked once · last asked Jul 16 · Senior
How would you approach a customer who wants EVPN-VXLAN because it is a buzzword, rather than because of a clear need?
Asked once · last asked Jul 16 · Scenario · Senior
How would you diagnose the cause of a connectivity issue affecting an AI agent?
Asked once · last asked Jul 17 · Scenario · Mid-level
A customer says their video stream buffers every few minutes, but only in the evenings. What would you ask and check, and in what order?
Asked once · last asked Jul 17 · Scenario · Mid-level
Other ways it was asked
- “Let's say a customer says their Netflix stream buffers every few minutes, but only in the evenings. Walk me through exactly what you ask and check in order.”
How much time does AI-driven troubleshooting save compared with manual network analysis?
Asked once · last asked Jul 17 · Concept · Mid-level
How would you lead the design of a multi-building campus network, including discovery and key solution decisions?
Asked once · last asked Jul 21 · Behavioral · Senior
Other ways it was asked
- “Tell me about a multi-building campus network architecture project you led, including the discovery process and key solution decisions.”
How would you approach a large WAN project, from discovery through the high-level design decisions needed to solve the customer's problem?
Asked once · last asked Jul 21 · Behavioral · Senior
Other ways it was asked
- “Describe a large WAN project you worked on, from discovery through the high-level design decisions used to solve the customer's problem.”
How would you build subject-matter expertise in wireless and switching through learning, training, and certifications so you can advise customers?
Asked once · last asked Jul 22 · Behavioral · Mid-level
How would you design a network based on its requirements and evaluate the necessary trade-offs?
Asked once · last asked Aug 4 · Behavioral · Senior
Other ways it was asked
- “Describe a network you designed, including its requirements and the trade-offs you made.”
What major challenges did you encounter while designing a network, and how did you overcome them?
Asked once · last asked Aug 4 · Behavioral · Senior
How do you use Cisco CCW Estimate to develop a bill of materials?
Asked once · last asked Aug 6 · Tooling · Mid-level
If you had to prepare a bill of materials and size products for a client in Johannesburg or elsewhere in South Africa, which global price list (GPL) would you use in CCW?
Asked once · last asked Aug 6 · Tooling · Senior
How does supporting a service provider network differ from supporting enterprise customers that use it?
Asked once · last asked Aug 10 · Concept · Senior
When you are talking to customers, what technical objections do you run into when positioning SD-WAN or SASE?
Asked once · last asked Aug 10 · Behavioral · Senior
If you are asked to build the network infrastructure for a new warehouse project, what is your approach?
Asked once · last asked Aug 12 · Scenario · Mid-level
Does a successful ping prove that a server is fully operational? What does it verify, and what does it not verify?
Asked once · last asked Aug 13 · Concept · Mid-level
Two physical servers in different locations can ping each other but cannot share data or access each other. How would you troubleshoot and resolve the connectivity problem?
Asked once · last asked Aug 13 · Scenario · Senior
When troubleshooting connectivity between two servers, how would you verify the service ports and inbound and outbound connections on both servers?
Asked once · last asked Aug 13 · Scenario · Mid-level
How do you troubleshoot repeated NAS disconnections?
Asked once · last asked Aug 18 · Scenario · Mid-level
A Windows Server can reach devices in its own subnet but not another VLAN. How do you troubleshoot that?
Asked once · last asked Aug 18 · Scenario · Mid-level
For an HP server, switch, or NAS firmware update, what risks or checks do you assess before implementation?
Asked once · last asked Aug 18 · Scenario · Senior
You have a nighttime maintenance window and 15 firewalls requiring approved changes. How would you schedule and execute the work?
Asked once · last asked Aug 19 · Scenario · Senior
How would you handle a rollback if a firewall change fails during the maintenance window?
Asked once · last asked Aug 19 · Scenario · Mid-level
An application that was working yesterday can no longer reach an API. How would you troubleshoot the issue?
Asked once · last asked Aug 19 · Scenario · Mid-level
How would you troubleshoot latency within the network when a customer reports an issue?
Asked once · last asked Aug 19 · Scenario · Mid-level
How does traceroute work internally?
Asked once · last asked Aug 19 · Concept · Mid-level
If a traceroute hop does not respond, how would you determine the remaining network path or troubleshoot the issue?
Asked once · last asked Aug 19 · Scenario · Mid-level
If a user can access a server by IP address but not by hostname, what would you check?
Asked once · last asked Aug 21 · Scenario · Mid-level
When internal DNS names fail only over VPN, what ticket fields would you capture to support knowledge base reuse and escalation?
Asked once · last asked Aug 24 · Scenario · Mid-level
How would you guide a nontechnical user remotely through running and sharing `ipconfig /all` and `nslookup` for an internal hostname, while reducing stress and protecting sensitive information?
Asked once · last asked Aug 24 · Tooling · Mid-level
How would you efficiently configure Akamai properties for 100 applications when you have their FQDNs and routing information but limited time?
Asked once · last asked Aug 26 · Scenario · Senior
For 100 Akamai application configurations, would you create them manually or use tools or Akamai functionality to automate the work?
Asked once · last asked Aug 26 · Scenario · Senior
If you inherited an environment with remote access technologies and hybrid endpoints, what would your first 90-day strategy look like?
Asked once · last asked Aug 27 · Scenario · Senior
After digging you still see intermittent timeouts. How do you isolate whether it's a local issue or upstream?
Asked once · last asked Sep 1 · Scenario · Mid-level
A user can resolve names but everything is very slow. How do you approach that?
Asked once · last asked Sep 1 · Scenario · Mid-level
If intermittent failures hit only one site, what would you rule out?
Asked once · last asked Sep 1 · Scenario · Mid-level
If you only see failures at peak hours what infrastructure angle jumps to mind?
Asked once · last asked Sep 1 · Scenario · Mid-level
How can Wireshark help troubleshoot Windows and database issues, including Remote Desktop Protocol (RDP) connectivity?
Asked once · last asked Sep 2 · Tooling · Mid-level
A user reports that their Windows PC cannot connect to the internet. How would you communicate with them and troubleshoot the issue?
Asked once · last asked Sep 2 · Scenario · Mid-level
If AD and the computer account look fine, but the user can’t log on and says no domain controller is found, what’s the next step?
Asked once · last asked Sep 2 · Scenario · Mid-level
What do you check with ipconfig /all?
Asked once · last asked Sep 2 · Tooling · Junior
A Windows 10 user reports no Internet, but the link is up and they have an IP via DHCP. What's your step-by-step approach to isolate DNS versus gateway versus local stack issues?
Asked once · last asked Sep 2 · Scenario · Mid-level
When troubleshooting network connectivity, what exact checks or commands would you run to isolate local network stack issues, and what results would lead you to investigate DNS or the gateway next?
Asked once · last asked Sep 2 · Scenario · Mid-level
Other ways it was asked
- “When you say isolate the local stack, what exact checks or commands would you run, and what results would make you pivot to DNS or gateway next?”
How do you isolate whether repeated Wi‑Fi drops are caused by the Mac, its profile or config, or the access point?
Asked once · last asked Sep 3 · Scenario · Mid-level
On macOS, what built-in tools or commands would you use to check DHCP, IPv4 details, DNS servers, and default gateway reachability when Wi‑Fi is connected but apps intermittently lose access?
Asked once · last asked Sep 3 · Tooling · Mid-level
A user can ping 8.8.8.8 but can't load any websites by name. What are your top three likely causes, and what would you check first for each?
Asked once · last asked Sep 3 · Scenario · Mid-level
When troubleshooting a DNS problem, what would you check first to distinguish a bad DNS server, an incorrect search domain or suffix, and a local hosts-file or proxy configuration issue?
Asked once · last asked Sep 3 · Scenario · Mid-level
How do you translate a DNS issue into a simple actionable set of steps for a nontechnical user to run remotely, and what outputs would you ask them to paste back?
Asked once · last asked Sep 3 · Scenario · Mid-level
How would you troubleshoot a server that has no network connection after you replace the cable?
Asked once · last asked Sep 3 · Scenario · Mid-level
A user cannot SSH into the server. How do you fix it?
Asked once · last asked Dec 11 · Scenario · Mid-level
A website is down, but the server is running. What do you check?
Asked once · last asked Dec 11 · Scenario · Mid-level
How would you configure a firewall or make a configuration change on a switch?
Asked once · last asked Sep 8 · Tooling · Junior
How would you verify whether a music-streaming platform uses less data than its competitors?
Asked once · last asked Sep 9 · Scenario · Mid-level
Other ways it was asked
- “How would you verify whether Spotify uses less data than competing music-streaming platforms?”
What is Terraform, and how can you use it to manage network changes such as changing a VLAN ID?
Asked once · last asked Sep 17 · Tooling · Mid-level
How would you back up the running configurations of network devices and support devices from different vendors?
Asked once · last asked Sep 17 · Scenario · Senior
How would you handle backing up Cisco device configurations when an existing tool does not support Cisco?
Asked once · last asked Sep 17 · Scenario · Senior
How would you configure new network devices to send alerts?
Asked once · last asked Sep 18 · Tooling · Mid-level
How would you replace a failed network switch and configure its replacement from scratch?
Asked once · last asked Sep 18 · Scenario · Mid-level
Other ways it was asked
- “If a network switch is down, would you be able to replace it and configure it from scratch?”
How do you update network documentation, especially network diagrams?
Asked once · last asked Sep 18 · Tooling · Mid-level
Could you walk me through how you would create a network topology from scratch?
Asked once · last asked Sep 18 · Design · Mid-level
If you had remote access to the network but no other information, how would you map the whole network?
Asked once · last asked Sep 18 · Scenario · Senior
How would you optimize a network based on its topology?
Asked once · last asked Sep 18 · Design · Senior
How do you use Cisco show commands to troubleshoot network issues?
Asked once · last asked Sep 18 · Tooling · Mid-level
How would you configure network devices from scratch, including staging, testing, deployment, and implementation planning?
Asked once · last asked Sep 18 · Scenario · Senior
How would you lead a hands-on tech refresh involving around 10 network switches?
Asked once · last asked Sep 18 · Scenario · Senior
How would you check whether a server or host is reachable and available?
Asked once · last asked Sep 24 · Scenario · Junior
How would you check whether a network port is reachable?
Asked once · last asked Sep 24 · Scenario · Junior
How would you isolate the failure domain, restore capacity, coordinate the incident, and prevent recurrence for a flapping BGP interregion link?
Asked once · last asked Sep 25 · Scenario · Senior
If an interregion link's optics are clean, BGP is stable, and interface counters show no loss, what would you check next?
Asked once · last asked Sep 25 · Scenario · Senior
How would you investigate intermittent network connectivity between a Kubernetes pod and a database?
Asked once · last asked Sep 29 · Scenario · Senior
How would you design a proactive, automated system to detect routing loops in real time?
Asked once · last asked Sep 29 · Design · Senior
How would you troubleshoot intermittent packet loss along a path crossing three devices when interface counters look clean?
Asked once · last asked Sep 29 · Scenario · Senior
What is the difference between interface-level drops and platform-level drops?
Asked once · last asked Sep 29 · Concept · Senior
If packet loss affects only one flow, what might that indicate, and how would you prove the cause?
Asked once · last asked Sep 29 · Scenario · Senior
How would you distinguish congestion-related packet loss from forwarding-related packet loss?
Asked once · last asked Sep 29 · Scenario · Senior
How would you automate a local password change across 1,200 network devices?
Asked once · last asked Sep 29 · Design · Senior
What features and error handling should a script for changing local passwords across network devices include?
Asked once · last asked Sep 29 · Tooling · Senior
What rollback strategy would you use for an automated password change across network devices?
Asked once · last asked Sep 29 · Scenario · Senior
How would you detect that a device was missing part of a standard configuration during a configuration push?
Asked once · last asked Sep 29 · Scenario · Senior
How would you design a configuration synchronization mechanism for network devices?
Asked once · last asked Sep 29 · Design · Senior
How would you verify that a device's configuration is up to date, rather than merely present?
Asked once · last asked Sep 29 · Scenario · Senior
Assuming the user’s email, intranet, and shared drives are unavailable while a neighboring user works, what would you check first?
Asked once · last asked Oct 5 · Scenario · Mid-level
Which command would you use to view a computer’s full IP configuration?
Asked once · last asked Oct 5 · Tooling · Junior
Tell me about a recent project involving cloud infrastructure and networking, and describe how you worked with the networking team.
Asked once · last asked Oct 6 · Behavioral · Mid-level
Walk me through the Linux commands you'd use to distinguish DNS problems from basic connectivity problems.
Asked once · last asked Oct 8 · Tooling · Mid-level
A server is reachable by everyone except one user. How do you troubleshoot this?
Asked once · last asked Oct 8 · Scenario · Mid-level
A site-to-site VPN tunnel is successful, but no traffic passes between the sites. What are the likely causes, and how do you narrow it down?
Asked once · last asked Oct 8 · Scenario · Mid-level
How would you determine which side of a site-to-site VPN tunnel is causing a traffic issue?
Asked once · last asked Oct 8 · Scenario · Mid-level
A site-to-site VPN allows ping, but file transfers and RDP sessions hang. How would you troubleshoot the issue?
Asked once · last asked Oct 8 · Scenario · Mid-level
A partner says they are no longer receiving a company's emails, but the sender gets no bounce message. Where would you investigate?
Asked once · last asked Oct 8 · Scenario · Mid-level
How would you verify whether an email message left the sender's mail system?
Asked once · last asked Oct 8 · Scenario · Mid-level
How do you determine whether a technical issue originates in the infrastructure, the network, or the application?
Asked once · last asked Oct 15 · Scenario · Mid-level
Other ways it was asked
- “How do you establish whether this is an infrastructure issue, a network issue, or an application issue?”
When a client requests an infrastructure or Active Directory audit, how do you conduct it?
Asked once · last asked Oct 15 · Scenario · Mid-level
Can you walk me through troubleshooting a website that is not reachable?
Asked once · last asked Oct 16 · Scenario · Mid-level
A customer reports that a Windows Server can't communicate with another system on the network. What commands or tools would you use to troubleshoot, and what would each help you determine?
Asked once · last asked Oct 16 · Scenario · Mid-level
If a Linux server has intermittent connectivity issues, what command-line tools might you use to investigate, and what would each show you?
Asked once · last asked Oct 16 · Scenario · Mid-level
How would you configure a new laptop on a LAN and join it to a Windows domain, step by step?
Asked once · last asked Oct 19 · Tooling · Junior
What troubleshooting process would you follow to help a user who cannot access a shared folder?
Asked once · last asked Oct 19 · Scenario · Junior
Other ways it was asked
- “How would you follow a process to help a user who cannot access a shared folder?”
When troubleshooting a user's inability to access a shared folder, what would you check at each layer of the OSI model, starting from the lowest layer?
Asked once · last asked Oct 19 · Scenario · Junior
A customer has lost their fiber internet connection. What would you check first to identify the cause?
Asked once · last asked Oct 19 · Scenario
How does a network-monitoring chatbot work, and what tools can be used to build one?
Asked once · last asked Oct 20 · Design · Mid-level
What entrepreneurial project idea would you propose in network switching or computer networking?
Asked once · last asked Oct 20 · Case
If a user's internet is not working on their desktop or laptop, how would you troubleshoot it?
Asked once · last asked Oct 21 · Scenario · Mid-level
When troubleshooting a single user's wired network outage, what would you check first, and what would you verify beyond the switch logs?
Asked once · last asked Apr 27 · Scenario · Mid-level
Other ways it was asked
- “When troubleshooting a single-user wired network outage, would you check switch logs before verifying the physical cable?”
When joining a new environment, how would you learn its infrastructure and identify the first steps needed to contribute?
Asked once · last asked Feb 19 · Scenario
Why might an organization deploy redundant network equipment but only one Riverbed appliance at each site?
Asked once · last asked Feb 24 · Scenario · Mid-level
If you are given a hostname on the network and need to locate it, how would you go about it?
Asked once · last asked Mar 6 · Scenario · Mid-level
When building a network, what work can be done remotely, and what physical tasks, such as cabling, may be required?
Asked once · last asked Mar 20 · Scenario · Mid-level
How does a network change-control process work?
Asked once · last asked Mar 23 · Concept · Mid-level
How many devices can an IoT system connect to?
Asked once · last asked Mar 24 · Concept · Junior
How would you use ifconfig to inspect or configure a device’s network interface?
Asked once · last asked Mar 26 · Tooling · Junior
What does collapsing network layers mean?
Asked once · last asked Apr 7 · Concept · Mid-level
What does the Linux ss utility do?
Asked once · last asked Apr 15 · Concept · Junior
What can cause high latency?
Asked once · last asked Apr 17 · Concept · Mid-level
What is the difference between Telnet and ping?
Asked once · last asked May 13 · Concept · Junior
How can you display a server's IP address?
Asked once · last asked May 18 · Tooling · Junior
What are partner connectivity checks?
Asked once · last asked Jun 18 · Concept · Junior
Other ways it was asked
- “How do you perform partner connectivity checks, investigate and resolve failures, and improve the process?”
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How this list is made
Every question here was asked by a real interviewer in a real job interview that a candidate ran MeetAssist in. After the call, the interviewer's questions are pulled from the transcript. Practice sessions, tests, exams and anything that was not a job interview are dropped.
Questions are rewritten so they make sense on their own: names of people, employers and clients are removed, and speech-to-text mistakes are fixed. Small talk, logistics and questions about one candidate's own résumé are left out. Rephrasings of the same question are merged, and the count is the number of different interviews it came up in.
The interviews come from candidates who use MeetAssist, so they lean towards software, data and AI roles: the shares describe these interviews, not every Computer Networks interview. Answers to the most asked questions are written and checked by an editor; a "common mistake" is shown only when reviews of real answers in these interviews show it, with the count.
337 interviews, 208 candidates, Nov 2025 to Oct 2026. Updated every month with new interviews.
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