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Bluetooth Interview Questions & Answers - Learning Mode

Bluetooth Interview Questions & Answers - Learning Mode


Try Bluetooth Interview Questions & Answers - Exam Mode

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Bluetooth Interview Questions & Answers - Learning Mode
Try Bluetooth Interview Questions & Answers - Exam Mode
Question: Why is Bluetooth called a cable replacement technology?

Answer: Bluetooth technology allows the creation of Personal Area Networks without cables or wires that are usual in home networks. Source:
Question: Describe TCP flow control

Answer: The receiver will have buffers in order to collect the frames sent by sender. the buffer should not get over loaded. if the buffer becomes full, the receiver sends a stop signal to sender. the sender then stops transmitting data. after the receiver processes all data in buffer, it sends a go signal to the sender. then, the sender starts its transmission. it is flow control in tcp.
Question: What is Piconet?

Answer: A collection of devices connected through Bluetooth technology in an ad hoc fashion. Source:
Question: How does traceroute work

Answer: traceroute is used to find the quality of internet connection.

the cmd is used as: tracert

depending on the ms values displayed after the processing of the cmd, the latency is found and the quality is determined.
Question: What is RJ-45 and full name of RJ-45?


Question: What is IP Spoofing? What do hackers do with it

Question: What is ICMP, ARP, Multicast, Broadcast

Answer: ICMP:internet control message protocol

for PING command dis ICMP packets will come


To see the properties of TCP/IP protocol, means like if v want to know odar ssystem MAC address it ll b use ful

in dis (arp -a) and (arp -s) commands r der


class D is useful 4 multi casting

Broad casting

if all HID portion bits ones dat s broadcasting
Question: How can you keep a TCP connection from tearing down when no data will be sent for a long time?

Answer: What ever type of connection it is TCP cannot go tearing unless and untill the connection type is cut i.e if the connection type is dialup and you hung it up / if it is Ethernet port and you remove the rj 45 chord. No matter what time you send / do not send the data.
Question: Difference between TCP and UDP

Answer: TCP-Transmission Control Protocol.
Protocol responsible for control over Transmission of data over the network.
It breaks the data into packets.
It supports error correction.

UDP-User Datagram Protocol
It also breaks the data into packets like the TCP.
But it does not support error correction. Source:
Question: What are the other (competing or not) wireless technologies?

Answer: Wi-Fi, IrDa, EDGE, UWB (Ultra Wide Band) Source:
Question: Explain TCP connection establishment and tear down

Answer: Tcp connection is made as follows:

1) sender and receiver synchronizes so that a connection is made. The OS in both the end are informed that a conenction is established.

2) then sender starts transmitting data. it also gets acknowledgements. a timer is started as soon as the sender starts sending data.

3) if the sender has not received any ack even after the timer exceeds it limit, then it retransmits data.

4) in case of windowing,if the buffer on the recei Source:
Question: Which technology is used in Bluetooth for avoiding interference?

Answer: Frequency hopping is the technology used in Bluetooth. Source:
Question: What are the different applications of bluetooth?

Answer: Bluetooth applications are cellphones to transfer data between two mobiles.Using bluetooth device connection can be possible with internet to computer using cellphones. Source:
Question: What are the different types of routing possible at layer 3

Answer: static routing and dynamic routing

Question: What is FCC and how does it relate to Bluetooth?

Question: How is Bluetooth used?

Answer: Bluetooth can be used to wirelessly synchronize and transfer data among devices. Bluetooth can be thought of as a cable replacement technology. Typical uses include automatically synchronizing contact and calendar information among desktop, notebook and palmtop computers without connecting cables. Bluetooth can also be used to access a network or the Internet with a notebook computer by connecting wirelessly to a cellular phone. Source:
Question: What companies are involved in the Bluetooth initiative?


Question: What is Service Discovery Protocol?

Answer: Discovery services are crucial part of the Bluetooth framework. These services provide the basis for all the usage models. Using SDP, device information, services and the characteristics of the services can be queried and after that, a connection between two or more Bluetooth devices can be established. SDP is defined in the Service Discovery Protocol specification. Source:
Question: What is the data throughput speed of a Bluetooth connection?


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