1. Transport layer protocols deals with ____________
a) application to application communication
b) process to process communication
c) node to node communication
d) man to man communication
Explanation: Transport layer is 4th layer in TCP/IP model and OSI reference model. It deals with logical communication between process. It is responsible for delivering a message between network host.
2. Which of the following is a transport layer protocol?
a) stream control transmission protocol
b) internet control message protocol
c) neighbor discovery protocol
d) dynamic host configuration protocol
Explanation: The Stream Control Transmission Protocol (SCTP) is a transport layer protocol used in networking system where streams of data are to be continuously transmitted between two connected network nodes. Some of the other transport layer protocols are RDP, RUDP, TCP, DCCP, UDP etc.
3. Physical or logical arrangement of network is __________
a) Topology
b) Routing
c) Networking
d) Control
Explanation: Topology in networks is the structure or pattern in which each and every node in the network is connected. There are many topologies in networking like bus, tree, ring, star, mesh, and hybrid topology. There is no particular best topology and a suitable topology can be chosen based on the kind of application of the network .
4. Which network topology requires a central controller or hub?
a) Star
b) Mesh
c) Ring
d) Bus
Explanation: In star topology, no computer is connected to another computer directly but all the computers are connected to a central hub. Every message sent from a source computer goes through the hub and the hub then forwards the message only to the intended destination computer.
5. _______ topology requires a multipoint connection.
a) Star
b) Mesh
c) Ring
d) Bus
Explanation: In bus topology, there is a single cable to which all the network nodes are connected. So whenever a node tries to send a message or data to other nodes, this data passes through all other nodes in the network through the cable. It is really simple to install but it’s not secure enough to be used in most of the computer network applications.
6. Data communication system spanning states, countries, or the whole world is ________
a) LAN
b) WAN
c) MAN
d) PAN
Explanation: WAN is the abbreviation for Wide Area Network. This network extends over a large geographical area. WANs are used to connect cities, states or even countries. A wireless connection is required to build a WAN. The best example of WAN is the Internet.
7. Data communication system within a building or campus is________
a) LAN
b) WAN
c) MAN
d) PAN
Explanation: LAN is an abbreviation for Local Area Network. This network interconnects computers in a small area such as schools, offices, residence etc. It is the most versatile kind of data communication system where most of the computer network concepts can be visibly used.
8. WAN stands for __________
a) World area network
b) Wide area network
c) Web area network
d) Web access network
Explanation: WAN is the abbreviation for Wide Area Network. This network extends over a large geographical area. These are used to connect cities, states or even countries. They can be connected through leased lines or satellites.
9. In TDM, slots are further divided into __________
a) Seconds
b) Frames
c) Packets
d) Bits
Explanation: TDM is the abbreviation for Time division multiplexing. It is technique for combining several low rate channels to a single high rate channel. For a certain time slot, the several channels could use the maximum bandwidth. Each channel is inactive for a period of time too. Some other multiplexing techniques are Frequency division multiplexing and Phase division multiplexing.
10. _____ is the multiplexing technique that shifts each signal to a different carrier frequency.
a) FDM
b) TDM
c) Both FDM & TDM
d) PDM
Explanation: FDM is an abbreviation for Frequency Division Multiplexing. This technique is used when the bandwidth of the channel is greater than the combined bandwidth of all the signals which are to be transmitted. The channel is active at all times unless a collision occurs with another channel trying to use the same frequency. Some other multiplexing techniques are Time division multiplexing and Phase division multiplexing.
Why Computer Network ?
What's the Buzz with Topology?
First things first, let's break down the tech jargon. Topology in computer networks is basically the layout or structure of how devices are connected. It's like the architectural blueprint of your digital realm.
Star Struck: The Social Butterfly of Networks
Imagine your network as a buzzing party, and the star topology is the extroverted social butterfly. In this setup, all devices are connected to a central hub, creating a hub of communication. Think of it as the heart of your network, sending love (or data) to all connected devices.
Ring-a-Ding-Ding: Where Circles Rule!
Now, picture a network where everyone is connected in a circle. That's the ring topology for you! It's like passing a digital talking stick around. Each device gets a chance to speak, creating a seamless circle of communication. No interruptions, just data making its merry-go-round.
Mesh Magic: Building Bridges, Not Walls
Ever played that game where you pass a message through a chain of people? That's mesh topology in action! Every device is a link, ensuring multiple paths for data to travel. It's like having a network with built-in GPS – always finding the quickest route.
Conclusion: Untangling the Web of Networks
Topology isn't just a tech buzzword; it's the DNA of your network's structure. Whether it's the star's social hub, the ring's seamless circle, or the mesh's web of links, each topology brings its own flavor to the digital table.
So, there you have it, a brief exploration of the network landscape. Now go forth, fellow digital adventurers, and let your data flow in the most stylish and efficient way possible!