Bluetooth and Network Interview questions

Bluetooth and Network Interview questions
1)Explain the following terms: ICMP, ARP, Multicast, Broadcast?
2)What is TCP connection establishment and tear down?
3)What method is used for Voice transfer? Brief about the method used.
4)Explain the term 'Airport' in Bluetooth.
5)How frequency hopping is used for security in Bluetooth?
6)Why is Bluetooth 2.0 better than previous versions?
7)What do you mean by the term Frequency-Hopping Spread Spectrum (FHSS)?
8)Disadvantages of Symmetric Cryptosystems.
9)Explain the concept of PKI, Public Key Infrastructure.
10)Explain the concepts of digital certificates.
11)Explain the concept of Voluntary and Compulsory Tunnels.
12)Explain Point-To-Point Tunneling Protocol, PPTP
13)What is CHAP (Challenge-Handshake Authentication protocol)?

Interview on Bluetooth technology

1. Why is Bluetooth called a cable replacement technology? -
Bluetooth technology allows the creation of Personal Area Networks without cables or wires that are usual in home networks.
2. Give a generic description of Bluetooth? -
Bluetooth is a low-cost, short-range (RF) links between mobile PCs, mobile phones and other portable devices. Bluetooth can transmit through solid, non-metal objects.
3. Why can Bluetooth equipment integrate easily in TCP/IP network? - Because Bluetooth uses wireless LAN standards IEEE for data transmission.
4. Is it possible to connect multiple Bluetooth hubs? -
No, only one hub can be used at a time with a computer. USB or Serial devices can be added.