Inventa Digital Technologies Network Engineer Interview Questions and Answers

VLAN is a virtual LAN that separates broadcast domains, access port connects end devices to a VLAN, trunk port carries traffic for multiple VLANs.

• VLAN stands for Virtual Local Area Network and is used to separate broadcast domains within a network.

• Access port is used to connect end devices like computers or printers to a specific VLAN.

• Trunk port is used to carry traffic for multiple VLANs over a single link.

• VLANs help ...read more

L3 switches operate at the network layer and can perform routing functions, while L2 switches operate at the data link layer and only switch packets based on MAC addresses.

• L3 switches operate at the network layer and can route traffic based on IP addresses.

• L2 switches operate at the data link layer and switch packets based on MAC addresses.

• L3 switches are capable of performing routing functions, while L2 switches are n...read more

Routers connect multiple networks together, while switches connect devices within a single network.

• Routers operate at the network layer (Layer 3) of the OSI model, while switches operate at the data link layer (Layer 2).

• Routers use IP addresses to forward data between networks, while switches use MAC addresses to forward data within a network.

• Routers determine the best path for data packets based on routing tables, whi...read more

A MAC address is a unique identifier assigned to network interfaces for communications on a network.

• MAC stands for Media Access Control

• MAC addresses are 48 bits long

• They are usually represented in hexadecimal format, like 00:1A:2B:3C:4D:5E

There are 5 types of IP classes: A, B, C, D, and E.

• Class A: Used for large networks with over 16 million hosts. Example: 10.0.0.0

• Class B: Used for medium-sized networks with up to 65,000 hosts. Example: 172.16.0.0

• Class C: Used for small networks with up to 254 hosts. Example: 192.168.0.0

• Class D: Reserved for multicast addresses. Example: 224.0.0.0

• Class E: Reserved for experimental use. Example: 240.0.0.0

I am currently earning a competitive salary based on my experience and qualifications.

• My current salary is in line with industry standards for a Network Engineer.

• I am open to discussing salary expectations during the interview process.

• I believe my skills and experience warrant a competitive salary.

• I am looking for a salary that reflects my expertise in network engineering.

• I am confident in my value as a Network Enginee...read more

Salary expectations for a Network Engineer depend on experience, location, and company size.

• Research average salaries for Network Engineers in your area

• Consider your level of experience and any certifications you hold

• Factor in the size and industry of the company you are applying to

• Be prepared to negotiate based on the overall compensation package offered

Current living refers to the present state of one's living conditions, including housing, location, and lifestyle.

• Current living encompasses factors such as housing type (apartment, house, etc.), location (urban, rural, etc.), and lifestyle choices.

• It can also include details about roommates, family members, pets, and daily routines.

• Factors like income level, job status, and personal preferences can all impact one's cu...read more

As a Network Engineer, my day-to-day activities include designing, implementing, and maintaining network infrastructure to ensure smooth operations.

• Designing network infrastructure based on organizational needs

• Implementing network solutions such as routers, switches, firewalls, etc.

• Monitoring network performance and troubleshooting issues

• Collaborating with other IT teams to ensure seamless connectivity

• Documenting netwo...read more

A VLAN (Virtual Local Area Network) segments a physical network into multiple logical networks for improved management and security.

• VLANs allow network administrators to group devices logically, regardless of their physical location.

• They enhance security by isolating sensitive data traffic from the rest of the network.

• Example: A company can create separate VLANs for HR, Finance, and IT departments to control access.

• VLA...read more

OSPF and BGP are essential routing protocols used for efficient data packet routing in networks.

• OSPF (Open Shortest Path First) is a link-state routing protocol used within an autonomous system.

• BGP (Border Gateway Protocol) is a path vector protocol used for routing between different autonomous systems.

• OSPF uses Dijkstra's algorithm to calculate the shortest path, while BGP uses path attributes to determine the best ro...read more

BGP stands for Border Gateway Protocol, a routing protocol used to exchange routing information between different networks. AD value is the administrative distance, a measure of the trustworthiness of a routing information source.

• BGP is a standardized exterior gateway protocol used to exchange routing information between different autonomous systems.

• AD value is a numerical value assigned to a routing protocol to indica...read more

L2 switches operate at the data link layer and use MAC addresses to forward packets, while L3 switches operate at the network layer and use IP addresses.

• L2 switches operate at the data link layer of the OSI model.

• L2 switches use MAC addresses to forward packets within the same network.

• L3 switches operate at the network layer of the OSI model.

• L3 switches use IP addresses to make routing decisions between different netwo...read more