Airowire Networks Interview Questions and Answers

Q1. What is use of arp
Ans. 
ARP is used to map IP addresses to MAC addresses on a local network.
• ARP stands for Address Resolution Protocol.

• It is used to find the MAC address of a device based on its IP address.

• ARP is essential for communication between devices on the same network.

• ARP cache stores the mapping of IP addresses to MAC addresses for faster communication.

• Example: When a computer wants to communicate with another device on the network, ...read more
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Q2. RIP eigrp ospf and static routing
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Q3. Diff bw hsrp vrrp glbp
Ans. 
HSRP, VRRP, and GLBP are all protocols used for providing redundancy in network environments.
• HSRP (Hot Standby Router Protocol) is Cisco's proprietary protocol for providing high availability by allowing two or more routers to work together in a group.

• VRRP (Virtual Router Redundancy Protocol) is an open standard protocol similar to HSRP, used for providing a virtual IP address that can be shared among multiple routers.

• ...read more
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Q4. Stp rstp mstp diff
Ans. 
STP, RSTP, and MSTP are protocols for preventing loops in network topologies, each with unique features and improvements.
• STP (Spanning Tree Protocol) is the original protocol, introduced by Dr. Radia Perlman in 1985.

• RSTP (Rapid Spanning Tree Protocol) improves STP by providing faster convergence, typically within seconds.

• MSTP (Multiple Spanning Tree Protocol) allows multiple VLANs to be mapped to a single spanning tree...read more
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Q5. How root bridge election will happen
Ans. 
Root bridge election in a network is determined by the bridge ID and the lowest path cost to the root bridge.
• Root bridge is the bridge with the lowest bridge ID in the network.

• Bridge ID consists of a priority value and a MAC address.

• If two bridges have the same priority, the bridge with the lowest MAC address will become the root bridge.

• Each bridge calculates the path cost to the root bridge based on the cumulative cos...read more
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Q6. How will you troubleshoot network issue
Ans. 
I will troubleshoot network issues by following a systematic approach to identify and resolve the root cause.
• Start by gathering information about the issue reported

• Check physical connections and cables

• Verify network configurations and settings

• Use network monitoring tools to identify any anomalies

• Isolate the issue by testing connectivity between devices

• Check for any network congestion or bandwidth issues

• Consult network ...read more
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Q7. Stp states and explain it
Ans. 
STP (Spanning Tree Protocol) is a network protocol that ensures a loop-free topology in Ethernet networks.
• STP prevents loops in Ethernet networks by blocking redundant paths.

• It elects a root bridge to serve as the central point for the network.

• STP uses Bridge Protocol Data Units (BPDUs) to exchange information between switches.

• Common STP states include Blocking, Listening, Learning, Forwarding, and Disabled.

• STP converg...read more
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Q8. Explain dhcp process along with dora
Ans. 
DHCP process involves four steps: Discover, Offer, Request, Acknowledge (DORA).
• Discover: Client broadcasts a DHCP Discover message to find available DHCP servers.

• Offer: DHCP server responds with a DHCP Offer message containing IP address lease information.

• Request: Client sends a DHCP Request message to request the offered IP address.

• Acknowledge: DHCP server sends a DHCP Ack message confirming the IP address lease to th...read more
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Q9. Osi model explain and tcp/ip
Ans. 
The OSI model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven different layers. TCP/IP is a protocol suite that is used for communication over the internet.
• OSI model has 7 layers: Physical, Data Link, Network, Transport, Session, Presentation, Application

• TCP/IP is a protocol suite that includes TCP (Transmission Control Protocol) and IP (Internet Protocol)

• ...read more
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Q10. Subnetting and what is use of it
Ans. 
Subnetting is the process of dividing a network into smaller subnetworks to improve performance and security.
• Subnetting helps in optimizing network performance by reducing network congestion.

• It allows for better organization and management of IP addresses.

• Subnetting enhances network security by isolating different parts of the network.

• Example: Dividing a large network into smaller subnets based on departments or locati...read more
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Q11. Vsf vs vsx diff
Ans. 
VSF and VSX are both technologies used in networking for virtualization and redundancy, but they have key differences in terms of implementation and capabilities.
• VSF (Virtual Switching Framework) is used in HPE Aruba switches to create a single logical switch from multiple physical switches, providing redundancy and scalability.

• VSX (Virtual Switching Extension) is used in Cisco Nexus switches to create a virtual chassi...read more
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Q12. Control plane , data plane, management plane difference
Ans. 
Control plane manages routing decisions, data plane handles traffic, and management plane oversees network operations.
• Control Plane: Responsible for routing and signaling; e.g., OSPF, BGP protocols.

• Data Plane: Forwards user data packets; e.g., switches and routers processing traffic.

• Management Plane: Manages network devices and configurations; e.g., SNMP, network management systems.
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Q13. DHCP port numbers
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Q14. DHCP related issue and how will you troubleshoot
Ans. 
Troubleshooting DHCP issues involves checking configurations, connectivity, and logs to ensure proper IP address assignment.
• Verify DHCP server is running and reachable. Example: Use 'ping' to check server connectivity.

• Check DHCP scope and ensure there are available IP addresses. Example: Use 'show ip dhcp binding' on Cisco devices.

• Inspect client configurations for correct DHCP settings. Example: Ensure clients are set ...read more
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Q15. What is the purpose Acl
Ans. 
ACL stands for Access Control List and is used to control network traffic by allowing or denying packets based on defined rules.
• ACLs can be used to filter traffic based on source or destination IP address, protocol, port number, etc.

• They can be applied on routers, switches, and firewalls to control access to network resources.

• ACLs can improve network security by restricting unauthorized access to sensitive data.

• Example...read more
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Q16. How will you upgrade firmware
Ans. 
To upgrade firmware, you need to download the latest firmware version from the manufacturer's website and follow the specific instructions provided.
• Download the latest firmware version from the manufacturer's website

• Backup current configuration before upgrading

• Follow specific instructions provided by the manufacturer

• Test the new firmware in a controlled environment before deploying it in production
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Q17. Ap heartbeat time
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Q18. How will you configure ssid
Ans. 
To configure SSID, access the wireless router's settings and enter the desired network name, security type, and password.
• Access the wireless router's settings through a web browser

• Locate the wireless settings section

• Enter the desired SSID (network name)

• Select the appropriate security type (WPA2, WEP, etc.)

• Set a strong password for the network

• Save the changes and restart the router if necessary
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Q19. How will you configure 802.1x protocol
Ans. 
To configure 802.1x protocol, you need to set up authentication servers, configure network devices, and define access policies.
• Set up authentication servers such as RADIUS or TACACS+

• Configure network devices (switches, routers, wireless access points) to support 802.1x

• Define access policies for different user roles and devices

• Enable 802.1x on network ports and specify authentication methods (EAP-TLS, PEAP, etc.)
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Already I will crack it

Q1. What is network and types in detail
Ans. 
A network is a collection of interconnected devices that can communicate with each other. Types include LAN, WAN, MAN, WLAN, and VPN.
• LAN (Local Area Network) - connects devices within a limited area like a home or office building

• WAN (Wide Area Network) - connects devices over a large geographical area, like different cities or countries

• MAN (Metropolitan Area Network) - covers a larger area than a LAN but smaller than a...read more
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Q2. Which type of jobs in their airowire Network
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Q3. What is Internet and which type of Network are using in the company and industry
Ans. 
The Internet is a global network of interconnected computers and devices that allows for communication and sharing of information.
• The Internet is a network of networks, connecting billions of devices worldwide

• Companies and industries typically use a combination of local area networks (LANs) and wide area networks (WANs)

• LANs are used within a single location, such as an office building, while WANs connect multiple locat...read more
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Q4. What are more most important thing in the IT sector
Ans. 
Innovation, cybersecurity, data analytics, automation, and cloud computing are important in the IT sector.
• Innovation drives technological advancements and competitive edge.

• Cybersecurity is crucial to protect sensitive data and systems from cyber threats.

• Data analytics helps in making informed decisions and improving business processes.

• Automation streamlines repetitive tasks and increases efficiency.

• Cloud computing enab...read more
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General aptitude and simple coding and networking questions

On any general knowledge topic is given we should share our thoughts on that.

Q1. What is difference between a server and storage? What is network, internet and some more basics. (This was for technical part)
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Q2. Tell me about yourself. What is the biggest fear which you overcame? (This is for HR we had both at the same time.)
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