Networking Interview Questions and Answers, Networking Interview Questions and Answers Freshers, Networking Interview Questions and Answers, Networking Interview Questions
Before getting on to the Networking interview questions, the student must know that the Networking is a continuously varying field which needs the students as well as professionals to upgrade their skills with the new features and knowledge, to get fit for the jobs associated with Networking. This post related to Networking Interview Questions and Answers, Networking Interview Questions and Answers Freshers, Networking Interview Questions and Answers, Networking Interview Questions will help you let out find all the solutions that are frequently asked in you upcoming Networking interview.
Over thousands of vacancies available for the Networking developers, experts must be acquaintance with all the component of Networking technologies. This is necessary for the students in order to have in-depth knowledge of the subject so that they can have best employment opportunities in the future. Knowing every little detail about Networking is the best approach to solve the problems linked with problem.
APTRON has spent hours and hours in researching about the Networking Interview Questions and Answers, Networking Interview Questions and Answers Freshers, Networking Interview Questions and Answers, Networking Interview Questions that you might encounter in your upcoming interview. All these questions will alone help you to crack the interview and make you the best among all your competitors.
First of all, let us tell you about how the Networking technology is evolving in today’s world and how demanding it is in the upcoming years. In fact, according to one study, most of the companies and businesses have moved to the Networking. Now, you cannot predict how huge the future is going to be for the people experienced in the related technologies.
Hence, if you are looking for boosting up your profile and securing your future, Networking will help you in reaching the zenith of your career. Apart from this, you would also have a lot of opportunities as a fresher.
These questions alone are omnipotent. Read and re-read the questions and their solutions to get accustomed to what you will be asked in the interview. These Networking interview questions and answers will also help you on your way to mastering the skills and will take you to the giant world where worldwide and local businesses, huge or medium, are picking up the best and quality Networking professionals.
This ultimate list of best Networking interview questions will ride you through the quick knowledge of the subject and topics like connections, Wireless networking, Security threats and mitigation. This Networking interview questions and answers can be your next gateway to your next job as a Networking expert.
These are very Basic Networking Interview Questions and Answers for freshers and experienced both.
Q1: Define Network?
A1: Network in general terms means a group of devices, connected with the help of some media in order to share some resources from a source to a destination and networking is a process of sharing the resources.
Q2: What is a Link?
A2: Link is a physical or a logical component of a network to interconnect nodes or devices.
Q3: What is a node?
A3: Node is a connection point on network for data transmission. It can be a computer or printer or any type of device that is capable of sending and receiving the data over the network.
Q4: What is a gateway?
A4: Gateway is a node of a network which can be used as an entrance for other network. It is a piece of hardware and different from default gateway.
Q5: What is point-point link?
A5: A connection between two nodes of the network is referred as point to point network and that link which connects both nodes is point to point link.
Q6: What is Multiple Access?
A6: Multiple Access allows more than one devices to transmit data at the same time span. Star or Mesh topology can be used for this.
Q7: What’s the benefit of subnetting?
A7: With the help of subnetting we can break a large network into smaller networks and assign IP addresses to those networks without changing our major network. It helps in utilizing our IP addresses more efficiently.
Q8: What is BGP (Border Gateway Protocol)?
A8: BGP is an exterior gateway protocol used to connect two or more different autonomous systems. It is widely being used to route the traffic of Internet. It can also work for internal AS but we have better protocols for internal connectivity. It has Administrative distance of 20 for external routes and 200 for internal routes.
Q9: What is Gateway-to-Gateway protocol?
A9: Gateway-to-Gateway protocol is now obsolete. This was being used for routing datagrams between internet gateways. It uses Minimum hop Algorithm.
Q10: What is a Multi-homed Host?
A10: Multi-homed host is defined as a node connected with more than one networks. Like a PC can be connected with both Home network and a VPN. These kind of hosts can be assigned with multiple addresses, one for each network.
Q11: What is OSPF?
A11: OSPF stands for Open Shortest Path First. It is a link state routing protocol that can connect a large number of networks without having any limitation to number of hops. It uses Dijkstra Algorithm and considers Cost as its’ metric. It has AD of 110 and uses the concepts of Areas, Router-id, Process-id and Virtual link for connectivity.
Q12: What is Routing?
A12: Routing is a process of exchanging route information form one router to another. Without routing it is impossible to connect two or more networks located at different or same geographical areas.
Q13: What is a Protocol?
A13: Protocol is set of rules on which a sender and a receiver agrees to transmit the data. Protocols are responsible for data communication in between networks.
Q14: What is Checksum?
A14: A checksum is a count of the number of bits in a transmission data that is included with the data so that the receiver can check to see whether the same number of bits arrived. If the counts match, it’s assumed that the complete transmission was received.
Q15: What is Redundancy ?
A15: Redundancy is a method of insuring network availability in case of network or path failure. Generally referred as backup paths in a networks.
Q16: What are the criteria necessary for an effective and efficient network?
A16: For an effective network, there must be alternate paths available, convergence should be fast and whatever happens network should never go down. Network should be cost effective and properly secure.
Q17: What is the key advantage of using switches?
A17: Switch doesn’t broadcast on all the ports. They can be managed and vlans cab be created. They are fast, can store MAC addresses. They also don’t divide the speed on each ports.
Q18: When does network congestion occur?
A18: Congestion can occur cause of the over capacity of the media. When a media carries data beyond its limit, congestion can happen.
Q19: Does a bridge divide a network into smaller segments?
A19: NO, bridge doesn’t divide a network in smaller segments.
Q20: What is the range of class C address?
A20: Class C varies from 192 – 223.
Q21: What is PoE (Power over Ethernet) ?
A21: PoE allows electrical current to be carried by the cable rather than the power cords. It minimizes the number of wires required to install the network.
Q22: What are the advantages of Distributed Processing?
A22: Lower cost, reliability, improved performance, reduced processing time, flexibility are the advantages of Distributed processing.
Q23: When were OSI model developed and why its standard called 802.XX and so on?
Q23: In Feb 1980, OSI model was developed. In 802.xx, 80 represent 1980 and 2 represents February.
Q24: What is Full form of AD?
A24: Administrative Distance
Q25: What is a peer-peer process?
A25: The processes on each machine that communicate at a given layer are called peer to peer process.
Q26: What is the difference between broadcast domain and collision domain ?
A26: Broadcast domain is a domain where if a broadcast frame is forwarded, every devices pays attention and receives the data. While in Collision domain,chances of data collision is maximum. Like in Hub , if two or more send traffic at the same time, data will collide in between and none of the devices will receive the data.
Q27: What is ping? Why you use ping?
A27: Ping is a utility used to test the connectivity in the network. It stands for Packet Internet Groper.
Q28: What is Round Trip Time?
A28: RTT is the propagation time between two nodes. It is the time taken to send a packet out of the interface and receiving the acknowledgement.
Q29: Define the terms Unicasting, Multiccasting and Broadcasting and Anycasting?
A29: Unicasting means “one on one” communication, Multicasting means “one to many” communication but there must be atleast one devices that is not receiving the traffic while broadcasting means “one to all” communication. Each device receives packets in case of broadcasting. Anycast works in IPv6 and it means to “one to nearest” communication.
Q30: How many pins do serial ports of routers have?
A30: In computer it’s known as com port and could be available in 9pin or 25 pin. On router it have 60 pins.
Q31: What are the differences between static ip addressing and dynamic ip addressing?
A31: In static IP Addressing, IP addresses are assigned by Network Administrator while in Dynamic, IP addresses are assigned with the help of a DHCP server.
Q32: Difference between CSMA/CD and CSMA/CA ?
A32: CSMA/CD is responsible for detecting collision in wired media mainly, while CSMA/CA works on wireless media to completely avoid collision because detecting collision in wireless media is a bit hard.
Q33: What is DHCP scope?
A33: DHCP Scope is the range of IP Addresses from which DHCP server will be assigning IP Addresses to the clients.
Q34: What are the different memories used in a CISCO router?
A34: Flash, RAM, NVRAM and ROM are the memories available in the router.
Q35. What are the different types of passwords used in securing a CISCO router?
A35: Enable password, Secret Password, Line passwords (VTY, Console and Aux) are the passwords used in Router.
Q36. Explain difference between straight and crossover cable with examples?
A36: Straight cable is used to connect two different layer devices like router-switch, router-pc, and switch-pc while cross cable is used to connect two same layer devices like router-router, switch-switch, and pc-pc. Color coding for both cable is different. If color coding on both ends of the cable is same, it is a straight cable, while if 1<–>3, 2<–>6 is being used, it is a cross cable for data transfer.
Q37. What is the difference between tracert and traceroute
A37: Tarcert works on PC while Traceroute works on routers.
Q38. What is the size of IP Address?
A38: IPv4 is a 32 bits address and IPv6 is 128 bits address.
Networking Conclusion Interview FAQs
We know the list of Networking Interview Questions and Answers, Networking Interview Questions and Answers Freshers, Networking Interview Questions and Answers, Networking Interview Questions is overwhelming but the advantages of reading all the questions will maximize your potential and help you crack the interview. The surprising fact is that this Networking interview questions and answers post covers all the basic of the Networking technology and you have to check out the FAQs of different components of Networking too.
However, you will be asked with the questions in the interview related to the above mentioned questions. Preparing and understanding all the concept of Networking technology will help you strengthen the other little information around the topic.
After preparing these interview questions, we recommend you to go for a mock interview before facing the real one. You can take the help of your friend or a Networking expert to find the loop holes in your skills and knowledge. Moreover, this will also allow you in practicing and improving the communication skill which plays a vital role in getting placed and grabbing high salaries.
Remember, in the interview, the company or the business or you can say the examiner often checks your basic knowledge of the subject. If your basics is covered and strengthened, you can have the job of your dream. The industry experts understand that if the foundation of the student is already made up, it is easy for the company to educate the employ towards advance skills. If there are no basics, there is no meaning of having learnt the subject.
Therefore, it’s never too late to edge all the basics of any technology. If you think that you’ve not acquired the enough skills, you can join our upcoming batch of Networking Training in Noida. We are one of the best institute for Networking in noida which provide advance learning in the field of Networking Course. We’ve highly qualified professionals working with us and promise top quality education to the students.
We hope that you enjoyed reading Networking Interview Questions and Answers, Networking Interview Questions and Answers Freshers, Networking Interview Questions and Answers, Networking Interview Questions and all the FAQs associated with the interview. Do not forget to revise all the Networking interview questions and answers before going for the Networking interview. In addition to this, if you’ve any doubt or query associated with Networking, you can contact us anytime. We will be happy to help you out at our earliest convenience. At last, we wish you all the best for your upcoming interview on Networking Technology.