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LAN Network Interview Questions & Answers - Learning Mode
COOLINTERVIEW.COM NETWORKING INTERVIEW QUESTIONS LAN NETWORK INTERVIEW QUESTIONS QUESTIONS & ANSWERS - LEARNING MODE

LAN Network Interview Questions & Answers - Learning Mode

A local area network (LAN) is a group of computers and associated devices that share a common communications line or wireless link to a server. Typically, a LAN encompasses computers and peripherals connected to a server within a small geographic area such as an office building or home. A local-area network (LAN) is a computer network that spans a relatively small area. Most often, a LAN is confined to a single room, building or group of buildings, however, one LAN can be connected to other LANs over any distance via telephone lines and radio waves.

Try LAN Network Interview Questions & Answers - Exam Mode

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LAN Network Interview Questions & Answers - Learning Mode
Try LAN Network Interview Questions & Answers - Exam Mode
Question: What is local area network?

Answer: A local area network (LAN) is a computer network covering a small physical area, like a home, office, or small group of buildings, such as a school, or an airport. Source: CoolInterview.com
Question: What is Peer to Peer Network?

Answer: Peer to Peer Network are networks that does not reply on a server. All PCs on this network act as individual workstations. Source: CoolInterview.com
Question: What is OSI and what role does it play in computer networks?

Answer: OSI (Open Systems Interconnect) serves as a reference model for data communication. It is made up of 7 layers, with each layer defining a particular aspect on how network devices connect and communicate with one another. One layer may deal with the physical media used, while another layer dictates how data is actually transmitted across the network. Source: CoolInterview.com
Question: What are the layers of the OSI reference model?

Answer: There are 7 OSI layers: Physical Layer, Data Link Layer, Network Layer, Transport Layer, Session Layer, Presentation Layer and Application Layer. Source: CoolInterview.com
Question: What is the main purpose of Open Shortest Path First (OSPF)?

Answer: OSPF, or Open Shortest Path First, is a link-state routing protocol that uses routing tables to determine the best possible path for data exchange. Source: CoolInterview.com
Question: How many layers are there under TCP/IP?

Answer: There are four layers: the Network Layer, Internet Layer, Transport Layer and Application Layer. Source: CoolInterview.com
Question: What is Ping?

Answer: Ping is a utility program that allows you to check connectivity between network devices on the network. You can ping a device by using its IP address or device name, such as a computer name. Source: CoolInterview.com
Question: What is backbone network?

Answer: 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. Source: CoolInterview.com
Question: What are Media Access Control (MAC) addresses?

Answer: MAC, or Media Access Control, uniquely identifies a device on the network. It is also known as physical address or Ethernet address. A MAC address is made up of 6-byte parts. Source: CoolInterview.com
Question: Give some examples of private network addresses.

Answer: 10.0.0.0 with a subnet mask of 255.0.0.0
172.16.0.0 with subnet mask of 255.240.0.0
192.168.0.0 with subnet mask of 255.255.0.0 Source: CoolInterview.com
Question: What is the difference between CSMA/CD and CSMA/CA Data Transmission methods?

Answer: CSMA/CD, or Collision Detect, retransmits data frames whenever a collision occurred. CSMA/CA, or Collision Avoidance, will first broadcast intent to send prior to data transmission. Source: CoolInterview.com
Question: What is the maximum length allowed for a UTP cable?

Answer: A single segment of UTP cable has an allowable length of 90 to 100 meters. This limitation can be overcome by using repeaters and switches. Source: CoolInterview.com
Question: Describe Network Topology in case of a Computer Network?

Answer: 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. Source: CoolInterview.com
Question: What is the role of IEEE in computer networking?

Answer: IEEE, or the Institute of Electrical and Electronics Engineers, is an organization composed of engineers that issues and manages standards for electrical and electronic devices. This includes networking devices, network interfaces, cablings and connectors. Source: CoolInterview.com
Question: How can you manage a network using a Router?

Answer: Routers have built in console that lets you configure different settings, like security and data logging. You can assign restrictions to computers, such as what resources it is allowed access, or what particular time of the day they can browse the internet. You can even put restrictions on what websites are not viewable across the entire network. Source: CoolInterview.com
Question: What are the different type of networking / internetworking devices?

Answer: Also called a regenerator, it is an electronic device that operates only at physical layer. It receives the signal in the network before it becomes weak, regenerates the original bit pattern and puts the refreshed copy back in to the link.

Bridges:
These operate both in the physical and data link layers of LANs of same type. They divide a larger network in to smaller segments. They contain logic that allow them to keep the traffic for each segment separate and thus are repeaters that r Source: CoolInterview.com
Question: What is a Private IP address?

Answer: Private IP addresses are assigned for use on intranets. These addresses are used for internal networks and are not routable on external public networks. These ensures that no conflicts are present among internal networks while at the same time the same range of private IP addresses are reusable for multiple intranets since they do not ?see? each other. Source: CoolInterview.com
Question: What are Gateways?

Answer: Gateways provide connectivity between two or more network segments. It is usually a computer that runs the gateway software and provides translation services. This translation is a key in allowing different systems to communicate on the network. Source: CoolInterview.com
Question: Explain Clustering Support?

Answer: Clustering Support refers to the ability of a network operating system to connect multiple servers in a fault-tolerant group. The main purpose of this is the in the event that one server fails, all processing will continue on with the next server in the cluster. Source: CoolInterview.com
Question: What are some drawbacks of implementing a Ring Topology?

Answer: In case one workstation on the network suffers a malfunction, it can bring down the entire network. Another drawback is that when there are adjustments and reconfigurations needed to be performed on a particular part of the network, the entire network has to be temporarily brought down as well. Source: CoolInterview.com

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