Related InterviewSolutions

• What are the two capabilities defined in CAP system?(a) data & software capability(b) address & data capability(c) hardware & software capability(d) software capabilityI had been asked this question by my college professor while I was bunking the class.My doubt stems from Protection in section Protection of Operating System
• What are the characteristics of Cambridge CAP system as compared to Hydra system?(a) It is simpler and less powerful than hydra system(b) It is more powerful than hydra system(c) It is powerful than hydra system(d) It is not as secure as Hydra systemThe question was posed to me during an internship interview.My query is from Protection in chapter Protection of Operating System
• What is the problem of mutually suspicious subsystem?(a) Service program can steal users data(b) Service program can malfunction and retain some rights of data provided by user(c) Calling program can get access to restricted portion from service program(d) Calling program gets unrestricted accessI had been asked this question in examination.Asked question is from Protection in chapter Protection of Operating System
• How can Keys be defined or replaced?(a) create [keyname] [bits](b) set-key(c) Key(d) MAKE [Key Name]I have been asked this question during a job interview.This interesting question is from Protection in portion Protection of Operating System
• What are the characteristics of the Hydra system?(a) It consists of known access rights and interpreted by the system(b) A user can of protection system can declare other rights(c) Hydra system is not flexible(d) Hydra doesn’t provide rights amplificationThe question was asked during a job interview.I'm obligated to ask this question of Protection in section Protection of Operating System
• What is true about Indirection to revoke capability?(a) Capabilities point indirectly to the objects(b) Each capability will not have a unique entry in global(c) Table entries cannot be reused for other capabilities(d) This system was adopted in MULTICS systemThis question was posed to me during a job interview.Question is taken from Protection topic in section Protection of Operating System
• What is false regarding Back-Pointers scheme to revoke capability?(a) List of pointers is maintained with each object(b) When revocation is required these pointers are followed(c) This scheme is not adopted in MULTICS system(d) These point to all capabilities associated with that objectI got this question in examination.This question is from Protection topic in portion Protection of Operating System
• What are the characteristics of rights amplification in Hydra?(a) This scheme allows a procedure to be certified as trustworthy(b) Amplification of rights cannot be stated explicitly in declaration(c) It includes kernel rights such as read(d) All of the mentionedThe question was asked in an online interview.I'd like to ask this question from Protection in portion Protection of Operating System
• What is the reacquisition scheme to revoke capability?(a) When a process capability is revoked then it won’t be able to reacquire it(b) Pointers are maintained for each object which can be used to revoke(c) Indirect pointing is done to revoke object’s capabilities(d) Master key can be used compare and revoke.The question was posed to me by my college professor while I was bunking the class.My question is from Protection in section Protection of Operating System
• Why is it difficult to revoke capabilities?(a) They are too many(b) They are not defined precicely(c) They are distributed throughout the system(d) None of the mentionedThe question was posed to me during an internship interview.I need to ask this question from Protection in portion Protection of Operating System