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)?

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