Interview questions for field Engineer and Network Engineer
Field Engineer
Field Engineers are tasked with managing site operations, testing equipment, overseeing repairs, coordinating projects, running inspections, mitigating risk, liaising with clients and preparing reports.
1. How do you deal with a demanding client?
Look for candidates with good conflict resolution and problem-solving skills.
2. What have you learned from mistakes on the field service engineer job?
Candidates without specific examples often do not seem credible. However, the example shared should be fairly inconsequential, unintentional, and a learned lesson should be gleaned from it. Moving ahead without group assistance while assigned to a group project meant to be collaborative is a good example.
3. How do you communicate and simplify technical data to non-technical persons?
Look for candidates with good communication skills. Candidates should also demonstrate good interpersonal skills.
4.What challenges are you looking for in a position?
The best way to answer questions about the challenges you are seeking is to discuss how you would like to be able to effectively utilize your skills and experience if you were hired for the job. You can also mention that you are motivated by challenges, have the ability to effectively meet challenges, and have the flexibility and skills necessary to handle a challenging job. You can continue by describing specific examples of challenges you have met and goals you have achieved in the past.
5. What resources do you use to keep up with engineering trends?
Look for candidates that subscribe to industry related publications and demonstrate good researching skills.
6. Did the salary we offer attract you to this field service engineer job?
The interviewer could be asking you this question for a number of reasons. “The salary was very attractive, but the job itself is what was most attractive to me.
7. Which projects have you worked on where your ideas have improved results?
Look for candidates that demonstrate strong analytical abilities. Candidates should also demonstrate work experience.
8. Which engineering tools or software are you familiar with?
Look for candidates that use the same or similar software as your organization.
Network Engineer
Network engineers are associated with the responsibility of creating a computer network systems for a company using information technology so that its employees can use it. These networks can include local area networks (LAN), wide area networks (WAN), intranets and extranets. The work of a typical network engineer varies with the size and function of an organisation. To become an expert network engineer, you need to have all the requisite skills, which you can acquire with the help of professional certification courses.
1. What is a ‘link’?
A link refers to the connectivity between two devices. It includes the type of cables and protocols used in order for one device to be able to communicate with the other.
2. What are the layers of the OSI reference model?
There are 7 OSI layers: Physical Layer, Data Link Layer, Network Layer, Transport Layer, Session Layer, Presentation Layer and Application Layer.
3. What are the types of LAN cables used?
There are two types of LAN cables used – ‘Cat 5’ and ‘Cat 6.’ Cat 5 can support 100Mbps of speed while Cat 6 can support 1Gbps of speed
4. What is backbone network?
A backbone network is a centralized infrastructure that is designed to distribute different routes and data to various networks. It also handles management of bandwidth and various channels.
5. What is a ‘cross table’?
This is a type of connection between same types of devices without using a hub/switch so that they can communicate.
6. What are routers?
Routers can connect two or more network segments. These are intelligent network devices that store information in its routing table such as paths, hops and bottlenecks. With this info, they are able to determine the best path for data transfer. Routers operate at the OSI Network Layer.
7. What is DNS? Why is it used?
DNS (Domain Name System) is a central part of the Internet, providing a way to match names (a website you’re seeking) to numbers (the address for the website).
8. What is subnet mask?
A subnet mask is combined with an IP address in order to identify two parts: the extended network address and the host address. Like an IP address, a subnet mask is made up of 32 bits.
9. What is data encapsulation?
Data encapsulation is the process of breaking down information into smaller manageable chunks before it is transmitted across the network. It is also in this process that the source and destination addresses are attached into the headers, along with parity checks.
10. A gateway works in which layer of the OSI model?
Transport layer.
11. How many layers are there in the OSI reference model? Name them?
There are 7 layers: physical layer, data link layer, network layer, transport layer, session layer, presentation layer and application layer.
12. What is VPN?
VPN means Virtual Private Network, a technology that allows a secure tunnel to be created across a network such as the Internet. For example, VPNs allow you to establish a secure dial-up connection to a remote server.
13. What is a ‘backbone network’?
A backbone network is a centralised infrastructure that is designed to distribute different routes and data to various networks. It also handles management of bandwidth and various channels.
14. Describe Network Topology?
Network Topology refers to the layout of a computer network. It shows how devices and cables are physically laid out, as well as how they connect to one another.
15. What is a router? What are its basic roles?
A router is a layer 3 network device used to establish communication between different networks. The roles of a router are –
Inter-network communication
• Best path selection
• Packet forwarding
• Packet filtering
16. What is RIP?
RIP, short for Routing Information Protocol is used by routers to send data from one network to another. It efficiently manages routing data by broadcasting its routing table to all other routers within the network. It determines the network distance in units of hops.
17. Define ‘anonymous FTP’?
Anonymous FTP is a way of granting a user access to files in public servers.
18. What are proxy servers and how do they protect computer networks?
Proxy servers primarily prevent external users who identifying the IP addresses of an internal network. Without knowledge of the correct IP address, even the physical location of the network cannot be identified. Proxy servers can make a network virtually invisible to external users.
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