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Star Topology A star may be a topology for a Local Area Network (LAN) during which all nodes are individually connected to a central connection point, sort of a hub or a switch. A star takes more cable than e.g. a bus, but the benefit is that if a cable fails, just one node is going to be brought down. Each device within the network is connected to a central device called a hub. If one device wants to send data to another device, it’s to first send the info to the hub then the hub transmits that data to the designated device. The number of links required to connect nodes in the star topology is N where N is the number of nodes.
Advantages of Star Topology
- It is very reliable – if one cable or device fails then all the others will still work
- It is high-performing as no data collisions can occur
- Less expensive because each device only need one I/O port and wishes to be connected with hub with one link.
- Easier to put in
- Robust in nature
- Easy fault detection because the link are often easily identified.
- No disruptions to the network when connecting or removing devices.
- Each device requires just one port i.e. to attach to the hub.
- If N devices are connected to every other in star, then the amount of cables required to attach them is N. So, it’s easy to line up.
Disadvantages of Star Topology
- Requires more cable than a linear bus .
- If the connecting network device (network switch) fails, nodes attached are disabled and can’t participate in network communication.
- More expensive than linear bus topology due to the value of the connecting devices (network switches)
- If hub goes down everything goes down, none of the devices can work without hub.
- Hub requires more resources and regular maintenance because it’s the central system of star .
- Extra hardware is required (hubs or switches) which adds to cost
- Performance is predicated on the one concentrator i.e. hub.
What Does Star Topology Mean?
Star topology is a network topology in which each network component is physically connected to a central node such as a router, hub or switch.
In a star topology, the central hub acts like a server and the connecting nodes act like clients. When the central node receives a packet from a connecting node, it can pass the packet on to other nodes in the network. A star topology is also known as a star network.
Techopedia Explains Star Topology
Star networks require a point-to-point connection between the central node and connecting devices. To improve communication between the devices on the network, the central node can provide signal reconditioning and amplification services.
Star topologies are often used in home networks. The benefits of a star network topology include the following:
- Limits the impact of a single point of failure. In star networks, each connecting node is isolated from other connecting nodes. If one connecting node goes down, it will not impact the performance of other connecting nodes in the network.
- Facilitates adding or removing individual components to and from a network. Star networks are usually kept small because network performance can suffer when too many devices compete for access to the central node.
This article lists 100 Star Topology MCQs for engineering students. All the Star Topology Questions and Answers given below include a hint and a link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up their fundamentals on Star Topology.
Digital communication deals with both wired and wireless networks using various networking devices such as Hubs, routers, Ethernet cables, and more. These devices are arranged in such a manner depending upon the topology and other consideration parameters.
A wireless communication network can be designed flexibly depending on different network topologies available such as Star, Tree & Mesh topologies. A star topology also known as communication topology is a LAN network that connects each node in the network to a centralized hub.
The main components involved in this star topology namely host, hub, and transmission lines. A hub on this network collects the data from the sender and distributes the same to other components on the network. Hence the hub component acts as a controller of the network.
They benefit in terms of low latency between the hub and remote nodes. But lacks in terms of connection where if any one of the nodes gets disturbed or goes down the entire nodes on the same network gets disturbed. A star topology is mainly deployed in areas such as corporate offices, schools, and homes.
1). A topology is considered from _____ of interconnections of circuits components?
Networks
Device
Equipment’s
All the above
Hint
2). A topology that does not concern with _______ parameters?
Components physical layout
Position of circuit
Size
All the above
Hint
3). An electronic type network topology depends on _____topology?
Science
Mathematical
Physics
Chemical
Hint
4). Circuit topology in electronics depends on _____ theory?
Diagram
Graph
Flow chart
All the above
Hint
5). A network type of nodes are ______ type of graphical theory?
Horizontal
Vertical
Tangential
All the above
Hint
Read more about Nodes.
6). Topologies in networks are derived from ______ letters?
Latin
Greek
Roman
All the above
Hint
7). How many types of topologies are present?
Hint
8). Identify the type of network topology shown in the figure below?
Topology
Star
Delta
Triangle
Both b and c
Hint
9). Identify the type of network topology shown in the figure below?
Topology
Star
Delta
Triangle
Both b and c
Hint
10). A network containing minimum of 2 branches pose ____number of minimum topologies?
Hint
11). Star and delta topology is applicable for _____ types of networks?
Linear
Non linear
Lateral
Bilateral
Hint
12.) A network is specified using ____ approaches?
Physical
Logical
Mathematical
Both a and b
Hint
13). Logical type topology approach relates data transmission within network with respect to _____.
Design
Location
Size
All the above
Hint
14). Physical type topology approach relates data transmission within network with respect to _____.
Design
Location
Network layout
All the above
Hint
15). A star topology is connects other network components using _____ cables?
Common
Separate
Distinct
Both b and c
Hint
16). Which of the following component in star topology connects different components?
Hint
17). Which of the following is the example of hub device?
Ethernet hubs
USB
CAN
All the above
Hint
18). Hubs are classified in to ____ types?
Hint
19). A hub that has independent power source is called _____ hub?
Active hub
Passive hub
Intelligent hub
Both a and c
Hint
20). Which of the following are the properties of active hub?
Removes noise
Boosts the signal
Relay the signal
All the above
Hint
21). An active type of hub acts as _______?
Repeater
Wiring center
Broadcaster
All the above
Hint
22). Which of the following is the advantage of using a HUB in a network?
Extends the distance
Increases number of components in circuit
Simple design
Both a and b
Hint
23). Which of the following type of Hub collects wiring from different nodes and sends the supply power to other hub?
Active hub
Passive hub
Intelligent hub
Both a and c
Hint
24). Which of the following type of hub lacks in extending nodes distance?
Active hub
Passive hub
Intelligent hub
Both a and c
Hint
25). Which of the following type of hub has remote management capacity?
Active hub
Passive hub
Intelligent hub
Both a and c
Hint
Star Topology Interview Questions and Answers
26). A star topology does not have____?
Traffic congestions
No direction between devices
Simple in design
Both a and b
Hint
27). Which of the following component is responsible for traffic flow in star topology?
Transmitter
Receiver
Controller
Both a and b
Hint
28). How many minimum number of links a device requires in star topology?
Hint
29). A Hub device is also called______?
Switch
Server
Nodes
All the above
Hint
30). A node in star topology includes_______?
Hosts
Cables
Server
Both a and b
Hint
31). Which of the following are mostly used cables in star topology?
Optical fiber
Coaxial cables
RJ-45 connectors
All the above
Hint
32). A coaxial cable is also called _____?
Coax
Electrical cable
Twisted pair cable
All the above
Hint
33). A coaxial cable consist of _____ components?
Conductor
Insulator
Dielectric material
All the above
Hint
34). Which of the following are the application of coaxial cable?
Transmission line
RF transmitters and receivers
Ethernet
All the above
Hint
35). Which of the following are the components of central Hub in star topology?
Computer
Bridge
Hub
All the above
Hint
36). A Router device in star topology is also called__________?
Repeater
Gateway
Switch
Cable
Hint
37). A switch device in star topology is also called__________?
Repeater
Gateway
Bridge
Cable
Hint
38). At which condition Hub stores information address of nodes in topology?
Server
Switch
Cable
All the above
Hint
39). At which condition Hub cannot store information address of nodes in topology?
Server
Switch
Cable
All the above
Hint
40). Which of the following is the valid point according to star topology acting as server?
A failure in topology at any node blocks impact other networks nodes
A failure in topology at any node shows impact other networks nodes
A failure in topology at any node blocks impact other networks nodes complete network stops working
Both b and c
Hint
41). Which of the following are the advantages of a star topology?
User approachable
Enhance reliability
Extended topology
All the above
Hint
42). Which of the following are the disadvantages of a start topology?
Costly
Immobile
Damage exposure
All the above
Hint
43). At which locations star topologies are used?
Home networks
Organization’s networks
Business networks
All the above
Hint
44). Which of the following a features of star topology?
Acts as a central hub
Effect at single node does not effect other nodes
All the above
Hint
45). A repeater in networking is a ____ device?
Mechanical device
Electronic device
Chemical device
All the above
Hint
46). Which of the following are the applications of repeaters?
Telephonic lines
Radio
Optical fiber
All the above
Hint
47). Repeaters are classified into _____ types?
Hint
48). There are ___ number of topologies in networks?
Hint
49). In which of the following topology nodes are connected to a central networking controller.
Star
Mesh
Ring
All the above
Hint
50). Which of the following network topology is mostly preferred over other topology?
Star
Mesh
Ring
All the above
Hint
Star Topology Question and Answers for Exams
51). Which of the following type of topology have multiple bus connections?
Star
Mesh
Ring
All the above
Hint
52). Which of the following type of topology has high fault tolerance?
Star
Mesh
Ring
All the above
Hint
53). In which of the following network type star topology is observed?
Wired
Wireless
Connection
All the above
Hint
54). Abbreviate WSN?
Wireless Sensor Network
Wired Sensor Network
Wireless Sound Network
Wired Sound Network
Hint
55). A star topology in WSN is a ____ topology?
Communication
Disturbance
Noise
Both b and c
Hint
56). In which of the following topology nodes in the network are disabled from sending data to other nodes?
Star
Mesh
Delta
Both a and b
Hint
57). Which of the following is a valid point according to star topology?
Has low level of latency between nodes while communication
Consumes minimum power
Connects to central hub
All the above
Hint
58). Based on which of the following component cables used in star topology depends on?
Computers NIC
Type of configuration
Type of topology
All the above
Hint
59). Abbreviate NIC according to computer terminology?
Network Interface Card
Network Interact Card
Nil Interface Card
Network Intra Card
Hint
Read more about NIC.
60). A NIC card is ____ type of card?
Extendable
Un-extendable
Limited
All the above
Hint
61). RJ-45 cable stands for______?
Registered Jack 45
Rejoin Jack 45
Renew Jack 45
Both b and c
Hint
62). A NIC card connects 2 devices using ____?
Network Switch
Hub
Controller
All the above
Hint
63). At which of the following location NIC cards are located on computer?
USB port
Power port
Keyboard port
All the above
Hint
64). Which of the following are the class of Ethernet cable used in star topology?
10BaseT
100BaseT
Gigabit
All the above
Hint
65). Which of the following is a valid point of star network?
A star network blocks echo related issues in communication process
A star network allows noises while communication
A star network does not function when there is a damage at any point
Both b and c
Hint
66). Which of the following are the characteristics of star topology?
They run at central hub
They are scalable
Much expansion of network
All the above
Hint
67). At which layer of OSI model hub used in star topology functions?
Physical layer
Data link layer
Network layer
Both a and c
Hint
68). At which layer of OSI model repeater used in star topology functions?
Physical layer
Data link layer
Network layer
Both a and c
Hint
69). At which layer of OSI model Bridge component functions?
Physical layer
Data link layer
Network layer
Both a and c
Hint
70). At which layer of OSI model switch component functions?
Physical layer
Data link layer
Network layer
Both a and c
Hint
71). At which layer of OSI model gateways component functions?
Physical layer
Data link layer
Network layer
Various layers
Hint
72). A star topology is also called____?
Star network
Star lines
Star design
All the above
Hint
73). Which of the following type of connection a star topology requires?
Point to Point connection
One to many connection
Many to one connection
All the above
Hint
74). A Hub in star topology acts as _____ device?
Signal booster
Repeater
Jammer
Both a and b
Hint
75). Based on how many factors a hub can be determined whether it is an active or a passive hub?
Hint
Quiz
76). Which of the following is the first factor to decide a hub is an active or a passive hub?
Electric power sources required
Restriction on central node
Amplification process
Regeneration process
Hint
77). Which of the following is the 2 nd factor to decide a hub is an active or a passive hub?
Electric power sources required
Type of central node
Amplification process
Regeneration process
Hint
78). Which of the following is the 3 rd factor to decide a hub is an active or a passive hub?
Electric power sources required
Amplification process
Regeneration process
Both b and c
Hint
79). Which of the following type of topology is a combination of Star and bus topology?
Tree topology
Hybrid topology
Mesh topology
Both a and b
Hint
80). A tree topology is also called ______?
Extended star topology
Extended mesh topology
Extended bus topology
Both a and b
Hint
81). Which of the following are the advantages of tree topology?
Higher network expansion
Higher error correction rate
Higher error detection rate
All the above
Hint
82). Which of the disadvantages of tree topology?
Single damage in circuit disturbs entire network performance
Entire connection depends on main cable
Higher maintenance
All the above
Hint
83). Identify the other LAN networks used in star topology?
Local talk
Asynchronous Transfer Mode (ATM)
Fiber Distributed Data Interface
All the above
Hint
84). When single node in star topology goes down then ____ happens to other nodes in the network?
Goes down
Activates
Terminates process
Both a and b
Hint
85). Which of the following type of network a star topology is suitable for?
LAN
MAN
WAN
All the above
Hint
86). ___ is the term that defines the Logical or Physical arrangement of network?
Control
Networking
Protocol
Topology
Hint
87). Abbreviate LAN?
Local Area Network
Large Area Network
Linear Area Network
Both b and c
Hint
88). Abbreviate WAN?
Wide Area Network
Wired Area Network
Wide Amid Network
Both b and c
Hint
89). Abbreviate MAN?
Metropolitan Area Network
Meter Area Network
Metropolitan Amid Network
Both b and c
Hint
90). A digital communication used in organizations is an example of ____ topology?
Hint
91). In which of the following topology single device requires only single I/O port?
Hint
92). Which of the following type of topology is a combination of multiple topologies?
Hint
93). ___ are the participating gadgets in network communication?
Clients
Servers
Nodes
Computer
Hint
94). Which of the following type of topology does not involves in tokens?
Ring
Star
Bus
All the above
Hint
95). Which of the following type of LAN network is developed using transmission facility?
3 tired
2 tired
Peer to peer
Hybrids
Hint
Read more about LAN.
96). In which of the following type of topology systems are serially connected?
Daisy chain
Star
Mesh
All the above
Hint
97). Which of the following term defines a piece of info transmitted with data to receiving computer?
Data
Module
Token
Element
Hint
98). How many minimum number of devices a wireless LAN can interface?
Hint
99). Which of the following type of LAN is used in computer?
IEEE 802.11
IEEE 802.1i
All the above
Hint
100). A 802.11g type LAN is of _____ capacity?
Hint