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- Top 135 Networking Interview Questions and Answers
- Computer Networks MCQ Questions and Answers with PDF Download
- Computer Networks Objective Questions and Answers Pdf - 1
- Networking Questions And Answers PDF Free Download
What is main difference between Communication and Transmission? Explain the concept of Cross Cable and Standard Cable?
Top 135 Networking Interview Questions and Answers
It also handles management of bandwidth and various channels. It refers to the connection between computers and other network devices that are located within a small physical location.
A node refers to a point or joint where a connection takes place. It can be computer or device that is part of a network. Two or more nodes are needed in order to form a network connection. 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.
It refers to a direct connection between two computers on a network. A point to point connection does not need any other network devices other than connecting a cable to the NIC cards of both computers. Anonymous FTP is a way of granting user access to files in public servers. Users that are allowed access to data in these servers do not need to identify themselves, but instead log in as an anonymous guest.
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. A single segment of UTP cable has an allowable length of 90 to meters. This limitation can be overcome by using repeaters and switches.
It is also in this process that the source and destination addresses are attached into the headers, along with parity checks.
It shows how devices and cables are physically laid out, as well as how they connect to one another. 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. This is a protocol that provides a way for multiple computers on a common network to share single connection to the Internet.
The Network layer is responsible for data routing, packet switching and control of network congestion. Routers operate under this layer. Network topology dictates what media you must use to interconnect devices. It also serves as basis on what materials, connector and terminations that is applicable for the setup. 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. There are several ways to do this. Install reliable and updated anti-virus program on all computers. Make sure firewalls are setup and configured properly. User authentication will also help a lot. All of these combined would make a highly secured network. This is a peripheral card that is attached to a PC in order to connect to a network.
It is an interconnection of computers and devices that are geographically dispersed. It connects networks that are located in different regions and countries. The physical layer does the conversion from data bits to electrical signal, and vice versa.
This is where network devices and cable types are considered and setup. 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. This layer provides the protocols and means for two devices on the network to communicate with each other by holding a session. This includes setting up the session, managing information exchange during the session, and tear-down process upon termination of the session.
Are there limitations? A fault tolerance system ensures continuous data availability. This is done by eliminating a single point of failure.
However, this type of system would not be able to protect data in some cases, such as in accidental deletions. The 10 refers to the data transfer rate, in this case is 10Mbps.
The word Base refers to base band, as oppose to broad band. T means twisted pair, which is the cable used for that network. Private IP addresses are assigned for use on intranets. These addresses are used for internal networks and are not routable on external public networks. NOS, or Network Operating System, is specialized software whose main task is to provide network connectivity to a computer in order for it to be able to communicate with other computers and connected devices.
DoS, or Denial-of-Service attack, is an attempt to prevent users from being able to access the internet or any other network services. Such attacks may come in different forms and are done by a group of perpetuators. One common method of doing this is to overload the system server so it cannot anymore process legitimate traffic and will be forced to reset. 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. The main purpose of this is to prevent crosstalk. Crosstalks are electromagnetic interferences or noise that can affect data being transmitted across cables.
By using address translation instead of routing, address sharing provides an inherent security benefit. It is also known as physical address or Ethernet address. A MAC address is made up of 6-byte parts. If the first octet begins with a 0 bit, that address is Class A. If it begins with bits 10 then that address is a Class B address. 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.
Firewalls serve to protect an internal network from external attacks. These external threats can be hackers who want to steal data or computer viruses that can wipe out data in an instant.
It also prevents other users from external networks from gaining access to the private network. This is one of the easiest to setup and maintain.
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. One major disadvantage of star topology is that once the central hub or switch get damaged, the entire network becomes unusable.
This is one of the protocols that are used for remote access. Tracert is a Windows utility program that can used to trace the route taken by data from the router to the destination network. It also shows the number of hops taken during the entire transmission route. When you are accessing the resources that are shared by one of the workstations on the network, that workstation takes a performance hit.
A hybrid network is a network setup that makes use of both client-server and peer-to-peer architecture. Its main task is to automatically assign an IP address to devices across the network. It first checks for the next available address not yet taken by any device, then assigns this to a network device. This is a set of protocol layers that is designed to make data exchange possible on different types of computer networks, also known as heterogeneous network.
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. This is possible because FTP is platform independent. The default gateway for connecting to the external network is usually the address of the external router port.
Computer Networks MCQ Questions and Answers with PDF Download
A Tell me something about yourself. Tell about your eductaion, place you belong to, some struggle in life which shows that you have positive attitude and will to fight the odds. It refers to the connection between computers and other network devices that are located within a small physical location. What could be the maximum length of the LAN cable? What is a cross cable?
Computer Networks Objective Questions and Answers Pdf - 1
If you wanted to deny all Telnet connections to only network No IP traffic will be allowed out E0. You discover that you are not able to execute the commandshow running-configuration. Ans: A, One access list may be configured, per direction, for each layer 3 protocol configured on an interface.
Short Messaging Service c. None of the above. Objective Questions and Answers on Mobile Communication. MCQ on Mobile Communication
Computer networks is one of the most important chapter for any candidate pursuing career in information technology field.
Networking Questions And Answers PDF Free Download
We have compiled the most frequently asked Networking Interview Questions and Answers that will help you to prepare for the Networking basics interview questions that an interviewer might ask you during your interview. In this list of Networking interview questions, we have covered all commonly asked basic and advanced interview questions on networking with detailed answers to help you clear the job interview. This detailed guide of Network Engineer interview questions will help you to crack your Job interview easily. A link refers to the connectivity between two devices.
These computers are linked together. The most common types of networks are:. Basically, the network is a connection made through the connecting links between two or more devices. You can even call it as the line configuration.