Computer Notes

 Fill in the blanks Cyber-Safety   includes user's personal safety and security and private information and self protection from computer-crime. Avoid using public or free Wi-Fi as the attackers often use wireless Snifers. Password  are the most important feature for protecting you on the internet. Password generator program  can be used to generate random and strong passwords. Indian Cyber Army   is fully committed to work government, policy makers and individuals to ensure a positive impact on reducing Cyber-crimes and attacks.  State True or False AntiVirus can provide online banking security for safer online banking transactions. (False) Spyware is also a malicious program that is designed to spy on you. (True) Virus software is the best defence against the threats that occur through online working. (False) Malware cannot damage the physical hardware of the system and network equipment but it can damage the data and software residing on the equipment. (...

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  Questions/Answers Question 1:  What do you mean by computer network? What is the purpose of creating network? Answer    : A computer network is a group of two or more computers that are connected with each other to share a resource. Sharing of devices and resources is the purpose of computer network. You can share printers, fax machines, scanners, network connection, local devices and other resources. Question 2: What advantages does fiber optics have over other media? Answer    : One major advantage of fiber optics is that it is less susceptible to electrical interference . It also support higher bandwidth, meaning more data can be transferred and received. Signal degrading is also very minimal over long distances. Question 3: Defines the terms:(i)Modem (ii)Guided media (iii)Network Transmission Media (iv)Twisted Pair Answer     : Modem:  Modem is a modulator and demodulator devices that converts data from analog to digital and digit...