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In broadcast topology there are further two types
1) SATELLITE\RADIO 2) RING TOPOLOGY
In a radio or satellite topology every computers are connected to each other via radio or satellite wave as given in the figure.
Figure: Satellite and Ring topologies:
In a ring topology every computer is connected to thorough a ring as given in the figure above.
Identify Possible Controls For each threat and linked vulnerabilities which have residual risk, create primary list of control ideas. Residual risk is the risk which remains to
Netfilter Firewall Netfilter is the popular name for the packet filtering system installed by default in the Linux kernel. The filtering system can be used as a very effective
Problem a) Give the destination IP address, upper layer protocol, TTL in decimal and header checksum in hexadecimal; the source port number and the destination port number in deci
what is relation ship between computer security goals?
PROCESSING AN INCOMING ARP MESSAGE When an ARP message reaches, the protocol specifies that the receiver must operate two basic steps. First the receiver finds the sender's add
How to pretect my computer from attacking
PARSING IPv6 HEADERS Base header is fixed in size i.e. 40 octets. NEXT HEADER field in the base header describe kind of header and it seems at end of fixed-size base header. S
Question: a) How many bits per second can be sent on a noiseless 4 MHz channel if four-level digital signals are used? b) If a binary signal is sent over a 3 KHz channel who
Cost Benefit Analysis (CBA) The common approach for information security controls is economic feasibility of implementation. CBA is begun by evaluating the worth of assets which
Attacks on Cryptosystems Attacks are attempts to achieve unauthorized access to secure communications have characteristically used brute force attacks. Attacker may alternatively
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