Why is the Meltdown bug easier to mitigate than Spectre? 1. Describe the preventive measures that can be taken to address CLKSCREW exploit. 2. How is the Evict+Time variant of Spectre different from the standard version? Explain both methods and compare. 3. For pre-silicon verification, compare and contrast simulation and formal verification.

Where are the security loopholes in an IoT ecosystem? Point them out from a very high level perspective. 1. Using Fig. 16.7, what other vulnerabilities can exist in this scenario? 2. Describe the potential overhead of the Security Policy Architecture without access to the DfD infrastructure.

Even with thorough security policy implementation and analysis, vulnerabilities like Spectre and Meltdown still surface. Describe the potential drawbacks and complexities that exist in defining system wide security policies throughout the design process. Briefly describe the security policies needed to protect the lock bit in Fig. 16.8. Explain each chosen policy with a violating scenario.

The third project involves modifying the attached interpreter so that it interprets programs for the complete language. You may convert all values to double values, although you can maintain their individual types if you wish. When the program is run on the command line, the parameters to the function should be supplied as command line

Analyse and evaluate moral and ethical considerations in specific security and privacy issues while transitioning to new technologies.

1.       What are deterministic finite machines and non-deterministic finite machines? List out the differences between them. 2.       How do you translate a regular expression to an NFA? Translate (a|b|c)?d into an NFA and draw its transition diagram. 3.       Write an algorithm to interpret an NFA and report if a given string matches the NFA. Illustrate

1.       How do SLR(1), LR(1) and LALR(1) methods compare against each other in the process of constructing the parsing table from the grammar? Draw a set diagram depicting the applicability of SLR(1), LR(1) and LALR(1) methods on the grammars. 2.       How does the error detection and error recovery happen in LR parsing? Illustrate with an

1.       A semantic analyser strips out the comments and white spaces from input source program. 2.       Semantic analysis involves verifying if the input source forms a legal set of instructions in accordance with the language rules. 3.       A semantic analyser checks if all the variables are declared before use. 4.       A semantic analyser checks if

1.       What is semantic analysis? Give some examples of errors that are detected during semantic analysis. 2.       What are the main tasks involved in semantic analysis? How is it different from syntax analysis? Illustrate with an example. 3.       Explain the terms:   (a) decorated parse tree,   (b) dependency graph,   (c) inherited and synthesised attributes. Illustrate with

1.       What kinds of syntax directed definitions are suited for evaluation of semantic rules during the parsing? Explain with an example. 2.       What is a translation scheme? How is it different from a syntax-directed definition? Illustrate the order of execution of semantic actions in a translation scheme? 3.       How do we evaluate synthesised and inherited