CCNA Interview Questions and Answers, CCNA Interview Questions and Answers Freshers, CCNA Interview Questions and Answers, CCNA Interview Questions
Before getting on to the CCNA interview questions, the student must know that the CCNA 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. This post related to CCNA Interview Questions and Answers, CCNA Interview Questions and Answers Freshers, CCNA Interview Questions and Answers, CCNA Interview Questions will help you let out find all the solutions that are frequently asked in you upcoming CCNA interview
Over thousands of vacancies available for the CCNA developers, experts must be acquaintance with all the component of CCNA 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 CCNA is the best approach to solve the problems linked with problem.
APTRON has spent hours and hours in researching about the CCNA Interview Questions and Answers, CCNA Interview Questions and Answers Freshers, CCNA Interview Questions and Answers, CCNA Interview Questions that you might encounter in your upcoming interview. This post related to CCNA interview questions and answers will help you let out find all the solutions that are frequently asked in you upcoming CCNA 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 CCNA 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 CCNA. 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, CCNA 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 CCNA 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 CCNA professionals.
This ultimate list of best CCNA interview questions will ride you through the quick knowledge of the subject and topics like IP addressing, VLANs, interswitch communications. This CCNA interview questions and answers can be your next gateway to your next job as a CCNA expert.
These are very Basic CCNA Interview Questions and Answers for freshers and experienced both.
Q1: What is Routing?
A1: Routing is the process of finding a path on which data can pass from source to destination. Routing is done by a device called routers, which are network layer devices.
Q2: What is the purpose of the Data Link?
A2: The job of the Data Link layer is to check messages are sent to the right device. Another function of this layer is framing.
Q3: What is the key advantage of using switches?
A3: When a switch receives a signal, it creates a frame out of the bits that was extracted from that signal. With this process, it gains access and reads the destination address, after which it forwards that frame to the appropriate port. This is a very efficient means of data transmission, instead of broadcasting it on all ports.
Q4: When does network congestion occur?
A4: Network congestion occurs when too many users are trying to use the same bandwidth. This is especially true in big networks that do not resort to network segmentation.
Q5: What is a Window in networking terms?
A5: A Window refers to the number of segments that is allowed to be sent from source to destination before an acknowledgement is sent back.
Q6: Does a bridge divide a network into smaller segments?
A6: Not really. What a bridge actually does is to take the large network and filter it, without changing the size of the network.
Q7: Which LAN switching method is used in CISCO Catalyst 5000?
A7: This model uses the Store-and-forward switching method. It stores the entire frame to its buffers and performs a crc check before deciding whether or not to forward that data frame.
Q8: Name the different types of networks
A8: There are two different types of networks – 1) peer-to-peer and 2) server-based
Q9: What is the difference between a ‘half-duplex’ and a ‘full-duplex’ system?
A9: In a half-duplex system, communication takes place in only one direction, while in a full-duplex system, communication takes place in both directions.
Q10: What is PoE (Power over Ethernet)?
A10: Power over Ethernet (PoE) refers to the technology which allows electric power along with data on Ethernet cabling.
Q11: What is the use of ‘ping’ command?
A11: Ping (Packet Internet Groper) is a computer network tool that is used to test whether a particular host is reachable across an IP network.
Q12: What is ‘round-trip time’?
A12: Round-trip time, or round-trip delay, is the time required for a packet to travel from a specific source to a specific destination and back again.
Q13: What is the difference between static and dynamic IP addressing?
A13: Dynamic IP addresses can change every time a device connects to the internet. Static IP addresses are reserved and do not change with time.
Q14: What is ‘subnet’? Why is it used?
A14: Subnets are used in IP network to optimise the performance of a network because it reduces traffic by breaking a large network into smaller networks.
Q15: What is the difference between private IP and public IP?
A15: Public IP is used across internet while private IP is used within the local LAN.
Q16: What is the difference among straight cable, cross cable and rollover cable?
A16: Straight cable: Straight cable is used to connect different group devices. For example: Switch- Router.
Cross cable: Cross cable is used to connect same group devices. For example: Switch-Switch.
Rollover cable: Rollover cable is used to connect console port to computer.
Q17: What is the difference between tracert and traceroute?
A17: Both tracert and traceroute commands are used to do the same work. The only diffence is that traceroute command is used on a router or switch while the tracert command is used on pc.
Q18: Explain the terms Unicast, Multicast, Broadcast and Multicast.
A18:
- Unicast: It specifies one to one communication.
- Multicast: It specifies one to a group communication.
- Broadcast: It specifies one to all communication.
- Multicast: It specifies one to nearest communication.
Q19: What is the difference between cross cable and straight cable?
A19: Cross cables are used to connect same group devices while straight cables are used to connect different group devices.
For example: If you want to connect one PC to another PC, you have to use cross cable while, to connect one switch to a router, you have to use straight cable.
Q20: What is the difference between CSMA/CD and CSMA/CA?
A20: CSMA/CD stands for Carrier Sense Multiple Access with Collision Detection. It is a media access control method used in local area networking using early Ethernet technology to overcome the occurred collision.
CSMA/CA stands for Carrier Sense Multiple Access with Collision Avoidance. It is used in wireless network to avoid collision.
Q21: What is the purpose of Data Link Layer?
A21: The main purpose of data link layer is to check that whether messages are sent to the right devices. Another function of data link layer is framing.
Q22: What is VLAN?
A22: VLAN stands for Virtual Local Area Network.
Q23: What is subnet? Why is it used?
A23: Subnets are used in IP network to break up larger network into smaller network. It is used to optimize the performance of network because it reduces traffic by breaking the larger network into smaller networks. It is also used to identify and isolate network’s problem and simplify them.
Q24: What are the different types of password used in securing a Cisco router?
A24: There are five types of passwords can be set on a Cisco router:
1. Consol
2. Aux
3. VTY
4. Enable Password
5. Enable Secret
Q25: Is HSRP is cisco proprietary or introduced by IEEE?
A25: HSRP is Cisco’s proprietary
Q26: What is the maximum value of administrative you can use?
A26: 255
Q27: What does AAA stands for?
A27: Authentication, authorization and accounting
Q28: Which feature should a routing protocol have to support VLSM?
A28: It should include subnet mask of each destination address.
Q29: What are the three sources of signal degradation on a data link?
A29: The three sources of signal degradation on a data link are attenuation, interference, and distortion. Attenuation is a function of the resistance of the medium. Interference is a function of noise entering the medium. Distortion is a function of the reactive characteristics of the medium, which react differently to different frequency components of the signal.
Q30: What purpose does aging serve in a link state protocol?
A30: Aging prevents old, possibly obsolete, link state information from residing in a topological database or from being accepted by a router.
Q31: Explain how an SPF algorithm works?
A31: A router builds a shortest path tree by first adding itself as the root. Using the information in the topological database, the router creates a list of all of its directly connected neighbors. The lowest cost link to a neighbor becomes a branch of the tree, and that router’s neighbors are added to the list. The list is checked for duplicate paths, and if they exist, the higher-cost paths are removed from the list. The lowest-cost router on the list is added to the tree, that router’s neighbors are added to the list, and the list is again checked for duplicate paths. This process continues until no routers remain on the list.
Q32: How do areas benefit a link state inter network?
A32: Within a routing domain, areas are subdomains. They make link state routing more efficient by limiting the size of the link state database of each router in the area.
Q33: What is an autonomous system?
A33: Depending on the usage, an autonomous system can be defined as an inter network under a common administrative domain or a single routing domain.
Q34: What is the difference between an IGP and an EGP?
A34: An Interior Gateway Protocol is a routing protocol that routes within an autonomous system. An Exterior Gateway Protocol is a routing protocol that routes between autonomous systems.
Q35: What port does RIP use?
A35: RIP uses UDP port 520.
Q36: What metric does RIP use? How is the metric used to indicate an unreachable network?
A36:RIP uses a hop count metric. An unreachable network is indicated by setting the hop count to 16, which RIP interprets as an infinite distance.
Q37: What is the update period for RIP?
A37: RIP sends periodic updates every 30 seconds minus a small random variable to prevent the updates of neighboring routers from becoming synchronized.
CCNA Conclusion Interview FAQs
We know the list of CCNA Interview Questions and Answers, CCNA Interview Questions and Answers Freshers, CCNA Interview Questions and Answers, CCNA 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 CCNA interview questions and answers post covers all the basic of the CCNA technology and you have to check out the FAQs of different components of CCNA 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 CCNA 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 CCNA 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 CCNA Training in Noida. We are one of the best institute for CCNA in Noida which provide advance learning in the field of CCNA Course. We’ve highly qualified professionals working with us and promise top quality education to the students.
We hope that you enjoyed reading CCNA Interview Questions and Answers, CCNA Interview Questions and Answers Freshers, CCNA Interview Questions and Answers, CCNA Interview Questions and all the FAQs associated with the interview. Do not forget to revise all the CCNA interview questions and answers before going for the CCNA interview. In addition to this, if you’ve any doubt or query associated with CCNA, 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 CCNA Technology.
