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Q1) Users are familiar with some network services like HTTP (Hypertext Transport Protocol) - Web; and SMTP (Simple Mail Transport Protocol) and POP (Post Office Protocol) - e-mail and instant messaging. But there are others like DHCP (Dynamic Host Configuration Protocol), DNS (Domain Name System), FTP (File Transport Protocol), NNTP (Network News Transport Protocol), Telnet, SSH (Secure Shell), SSL-TLS (Secure Sockets Layer-Transport Layer Security). How do they figure into organizational security? What are the most recent threats against them? Explain in 2-3 paragraphs.
In Lamport'so mutual exclusion protocol, if process i is implementing critical section, Is this still true when there are no messages in transit?
For a language L over alphabet Sigma, let sup(L) denote language of all strings in Sigma* that contain a string of L as s substring.
Explain role of antennas in transmitting radio waves. What kind of antenna is typically used in wireless LAN?
Write down the advantages of some of the current technologies including VoIP, Unified Communications, Virtual Private Networks.
Depreciation will be calculated using the 3-year MACRS rates of 33%, 45%, 15%, and 7% for the first through the fourth year, respectively. Looner Industries' marginal tax rate is 40%, and its cost of capital is 10%. Should the plant be built?
Write down the analogous steps in dimensioning a computer network?
In the meantime, CEO of the first company transmits e-mail to CEO of second company in order to provide a couple suggestions related to the joint venture. Explain whether this scenario follow OSI model? Describe it in detail.
safekeeping posture of enterprise (venture) wired and wireless LANs (WLANs), steps listed in OWASP, Securing User Services, IPV4 ip address, IPV6 address format, V4 address, VPN, Deploying Voice over IP, Remote Management of Applications and Ser..
How taking a socio-technical perspective can be more productive in helping organizations manage information overload than either technical solutions or organizational solutions alone?
Network simulation on Hierarchical Network Rerouting against wormhole attacks
What are some benefits and drawbacks of using social networking?
Consider yourself as the network security technician. Your internetwork connects six buildings through fiber links. You have experienced the numerous attacks on your corporate Web server.
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