What are the possible ways of data exchange?
(i) Simplex
(ii) Half-duplex
(iii) Full-duplex.
What are the two types of transmission technology available?
(i) Broadcast
(ii) point-to-point.
How do I convert a numeric IP address like 192.18.97.39 into a hostname like java.sun.com?
String hostname = InetAddress.getByName(”192.18.97.39″).getHostName();
What is cladding?
A layer of a glass surrounding the center fiber of glass inside a fiber-optic cable.
What is subnet?
A generic term for section of a large networks usually separated by a bridge or router.
A gateway operates at the upper levels of the OSI model and translates information between two completely different network architectures or data [...]
What is virtual path?
Along any transmission path from a given source to a given destination, a group of virtual circuits can be grouped together into what is called path.
Explain the function of Transmission Control Block?
A TCB is a complex data structure that contains a considerable amount of information about each connection.
What is a DNS resource [...]
What are the important topologies for networks?
BUS topology:
In this each computer is directly connected to primary network cable in a single line.
Advantages:
Inexpensive, easy to install, simple to understand, easy to extend.
STAR topology:
In this all computers are connected using a central hub.
Advantages:
Can be inexpensive, easy to install and reconfigure and easy to trouble shoot physical problems.
RING [...]
What is difference between baseband and broadband transmission?
In a baseband transmission, the entire bandwidth of the cable is consumed by a single signal. In broadband transmission, signals are sent on multiple frequencies, allowing multiple signals to be sent simultaneously.
What is ICMP?
ICMP is Internet Control Message Protocol, a network layer protocol of the TCP/IP suite used [...]
What is Gateway-to-Gateway protocol?
It is a protocol formerly used to exchange routing information between Internet core routers.
What is Project 802?
It is a project started by IEEE to set standards that enable intercommunication between equipment from a variety of manufacturers. It is a way for specifying functions of the physical layer, the data link layer and [...]
What is EGP (Exterior Gateway Protocol)?
It is the protocol the routers in neighboring autonomous systems use to identify the set of networks that can be reached within or via each autonomous system.
What is IGP (Interior Gateway Protocol)?
It is any routing protocol used within an autonomous system.
What is OSPF?
It is an Internet routing protocol that scales [...]
What is redirector?
Redirector is software that intercepts file or prints I/O requests and translates them into network requests. This comes under presentation layer.
What is packet filter?
Packet filter is a standard router equipped with some extra functionality. The extra functionality allows every incoming or outgoing packet to be inspected. Packets meeting some criterion are forwarded normally. [...]
What are major types of networks and explain?
Server-based network.
Peer-to-peer network.
Peer-to-peer network, computers can act as both servers sharing resources and as clients using the resources.
Server-based networks provide centralized control of network resources and rely on server computers to provide security and network administration.
What is SAP?
Series of interface points that allow other computers to communicate with [...]
What is attenuation?
The degeneration of a signal over distance on a network cable is called attenuation.
What is Protocol Data Unit?
The data unit in the LLC level is called the protocol data unit (PDU). The PDU contains of four fields a destination service access point (DSAP), a source service access point (SSAP), a control field and [...]
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