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Q1) In data communication we often use the term "bandwidth" when we refer to the capacity (bits-persecond) of a link. Strictly speaking, however, bandwidth refers to the range of frequencies (highest frequency minus lowest frequency) that can be carried on a link. Using the frequency definition of bandwidth, what must the bandwidth of a 10 Mbps Ethernet link be if the signal-to-noise ratio is 20 dB?
Write down some popular reconnaissance tools?
Assume that sender sends silence suppressed RTP stream of G.711 audio to receiver (G.711 is the name of standard for 64Kbps PCM). Outline algorithm which uses sequence numbers and time stamps of RTP packets to find out beginning of new talk spurt?
You are provided with some continuous signals for the number of sensors on a sensor array. The signals detect various categories of signals.
Explain whether this is still true today, and write down factors are moving wireless NICs into more dominant role, if any.
What do you think is the most effective method to explain if an attack has been made on the computer network include what malicious activities.
When a DNS resolver queries the name server, does case of the domain name affect response?
Most homeowners select to install a DSL for Internet connection what kind of networking hardware would you suggest?
problems of IPV, DNS server software, TCP SYN attack, Ping of Death, Land attack, Teardrop attack, Smurf attack, Fraggle attack
Define the type of packet filters that you might build to capture traffic destined to you six critical Web servers?
Coaxial cable is two-wire transmission system, determine the advantage of connecting outer conductor to ground? Explain the two layers: LLC & MAC.
Are organizations likely to find better solutions to information overload through changes to their technical systems or their social systems, or both? Why?
Users are familiar with some network services like HTTP (Hypertext Transport Protocol) - Web, NNTP (Network News Transport Protocol). How do they figure into organizational security?
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