Scenario Based Questions - CCNA level

In an office if a user is unable to connect to the internet what steps would you take to troubleshoot and resolve the issue?

If two computers, on the network are unable to communicate with each other how would you go about troubleshooting this problem?

In a scenario where a company has branch offices and wants to connect them over the internet, which technology or protocol would you recommend for establishing a secure connection between these offices?

To prevent unauthorized access to a wireless network, what security measures would you suggest implementing as a network administrator?

When faced with connectivity issues in a network how would you. Resolve this problem effectively?

A company has recently implemented a router. Wants all traffic from the internal network to go through it for internet connectivity. What configuration changes should be made to achieve this goal?

To ensure availability in the network as a network administrator how would you design a network architecture for increased reliability?

If there is a need to segment the network into broadcast domains as per the requirements of your role as a network administrator, which device or technology do you recommend for this purpose?

As part of your responsibilities as a network administrator if there is an interest, in monitoring network traffic and analyzing bandwidth usage patterns what methods or tools do you consider using?What are some recommended tools or methods, for monitoring network activity?

In a given scenario, where a company plans to establish a network (VPN) for remote employees to securely connect to the internal network, which VPN technology or protocol would you advise?

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Sir can you take the live class of all scenarios based questions

There is no special class for these questions. Students who watch my content properly will automatically gain this knowledge to crack interviews.

Ok sir I have some doubts so will check in live class

To troubleshoot internet connectivity issues in an office, check cables, restart devices, verify Wi-Fi, reset router, confirm DNS settings, run network tools, test with different browsers, and check firewall/antivirus. If unresolved, contact ISP or escalate to IT staff.

first of all check which routing protocol running in a company internal network like OSPF, EIGRP configure same routing protocol for internal network synchronization after
we configure Default Routing for internet connectivity on this router, we configure NAT (PAT) also because we need to convert private ip in to public ip for internet connectivity.

First we identify the problem, we checked any host able to ping their gateway or not. if not ping their gateway we checked configuration at router end, router interface ip which is connected towards LAN and check physical LAN connectivity also. if host are able to ping their gateway then we check connected router able to communicate each other or not, if not we check running configuration like routing protocol, routers connected interfaces are up or down on router.

Hi sir,

Please answer on below question.

In a given scenario, where a company plans to establish a network (VPN) for remote employees to securely connect to the internal network, which VPN technology or protocol would you advise?

To ensure availability in the network as a network administrator how would you design a network architecture for increased reliability?

Can someone please answer

Sir,

Can you please answer above question

Its almost 5 days gone no one answered yet

Here are some steps you can take to troubleshoot communication issues between two computers on a network:

  1. Check physical connections: Ensure that the network cables are securely plugged in and not damaged.
  2. Verify IP addresses: Confirm that both computers have valid IP addresses and are on the same subnet.
  3. Ping test: Use the ping command to check if the computers can reach each other. If there is no response, it may indicate a connectivity problem.
  4. Firewall settings: Check if any firewalls or security software are blocking the communication between the two computers. Temporarily disable them for testing purposes.
  5. Network configuration: Review the network configuration settings such as DNS, gateway, and subnet mask to ensure they are correct.
  6. Network devices: Check if any network devices, such as routers or switches, are functioning properly and not causing communication issues.
  7. Antivirus software: Temporarily disable antivirus software to see if it is causing any conflicts.
  8. Update drivers: Ensure that the network adapters on both computers have up-to-date drivers installed.
  9. Restart devices: Sometimes a simple restart of the computers, routers, or switches can resolve communication issues.
  10. Network administrator: If all else fails, contact your network administrator for further assistance.

Remember that troubleshooting steps may vary depending on the specific network setup and operating system being used.

  • Virtual Private Network (VPN)
  • Multiprotocol Label Switching (MPLS)
  • Secure Sockets Layer/Transport Layer Security (SSL/TLS) VPN
  • Internet Protocol Security (IPsec) VPN
  • Secure Shell (SSH)
  • Point-to-Point Tunneling Protocol (PPTP)
  • OpenVPN
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To achieve the goal of routing all traffic from the internal network through the router for internet connectivity, the following configuration changes should be made:

  • Configure the default gateway on all devices in the internal network to point to the IP address of the router.
  • Set up NAT (Network Address Translation) on the router to translate internal private IP addresses to a public IP address for internet communication.
  • Enable IP forwarding on the router to allow it to forward traffic between the internal network and the internet.
  • Implement appropriate firewall rules on the router to control inbound and outbound traffic.
  • Configure DHCP (Dynamic Host Configuration Protocol) on the router to automatically assign IP addresses to devices in the internal network if required.
  • Ensure that the router is connected to an ISP (Internet Service Provider) and has a valid IP address assigned by the ISP for internet connectivity.
  • Use strong and unique passwords for the wireless network.

  • Enable encryption, such as WPA2 or WPA3, to secure the wireless communications.

  • Disable broadcasting the Wifi Name known as network’s SSID (Service Set Identifier) to make it less visible to potential attackers.

  • Implement MAC address filtering to only allow specific devices to connect to the network.
    Its tough to add all mac addresses but still an option.

  • Regularly update the firmware of wireless routers and access points to patch any security vulnerabilities.
    Its required as companies keep fixing the bugs.

  • Enable a firewall on the network to filter incoming and outgoing network traffic.

  • Enable network logging and monitoring to detect any suspicious activities.

  • Regularly change the default login credentials of the wireless devices.

  • Educate users about safe wireless network practices, such as avoiding connecting to unsecured networks and being cautious of phishing attempts.

  • Use advance wifi devices like Cisco Meraki , Juniper MIST.

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To ensure availability in the network as a network administrator how would you design a network architecture for increased reliability?

Can someone help me on this question.