CS101 Final Term MCQs Spring 2023 by Student Info 5

CS101 FINAL TERM MCQS 2023 · MODULE 82 To 234 · Efforts By a Student

•  A primary prevention technique is to filter traffic passing through a point in the network, usually with a program called a FIREWALL
•  SPAM FILTERS which are firewalls designed to block unwanted email.
•  Another preventative tool that has filtering connotations is the PROXY SERVER.
•  particular kind of service (FTP, HTTP, telnet, etc.).
•  FTP proxy server could check all incoming files for the presence of known viruses and block all infected files
•  antivirus software, which is used to detect and remove the presence of known viruses and other infections
•  authentication—making sure that the author of a message is, in fact, the party it claims to be.
•  A prime example is the secure version of HTTP, known as HTTPS
•  The backbone of HTTPs is the protocol system known as Secure socket layer (SSL),
•  One key is known as public key, is used to encrypt message;
•  the older key known as the private key, is required to decrypt message
•  Certificate authorities whose task to be maintain accurate lists of parities and their public key.
•  Certificates. A certificate is a package containing a party’s name and that party’s public key.
•  In this manner, the holder of the private key can produce a bit pattern, called a digital signature, US – Computer Fraud and Abuse Act passed in 1948
•  US- Electronic communication privacy Act (ECPA)
•  National assembly pass new cybercrime law in 2016.
•  Pakistan – applicable Security acts
•  Prevention of electronic crime ordinance ,2007
•  Electronic transaction ordinance, 2002-2008
•  Pakistan Telecommunication (Re-Organization) Acts 1996
•  Wireless Telegraphy Act 1933
•  Telegraph Act, 1885
•  Federal Investigation Agency Act, 1974
•  Payments and electronic fund Transfer Act, 2007
•  Algorithm set of steps that define how a task is performed.
•  CONVERT KM TO METERS Multiply the input with 1000.
•  Many researchers believe that every activity of the human mind, including imagination, creativity, and decision making, is actually the result of algorithm execution
•  Unambiguous The information in the state of the process must be sufficient to determine uniquely and completely the actions required by each step.
•  A single algorithm can be represented in many ways

 F = (9/5)C + 32

•  A program is a representation of an algorithm.
•  The term program usually refers to a formal representation of an algorithm designed for computer application
•  A process already to be the activity of executing a program
•  As the terminology used has more than one meaning.
•  Each primitive has its own syntax and semantics. Syntax refers to the primitive’s symbolic representation; semantics refers to the meaning of the primitive