System calls are usually invoked by using: (A) A privileged instruction (B) An indirect jump (C) A software interrupt (D) Polling

System calls are usually invoked by using: (A) A privileged instruction (B) An indirect jump (C) A software interrupt (D) Polling
by

1 Answer

Answer :

(C) A software interrupt
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Suppose that the number of instructions executed between page faults is directly proportional to the number of page frames allocated to a program. If the available memory is doubled, the mean interval between page faults is also doubled. Further, consider that a normal instruction takes one micro second, but if a page fault occurs, it takes 2001 micro seconds. If a program takes 60 sec to run, during which time it gets 15000 page faults, how long would it take to run if twice as much memory were available? (A) 60 sec (B) 30 sec (C) 45 sec (D) 10 sec

Description : Suppose that the number of instructions executed between page faults is directly proportional to the number of page frames allocated to a program. If the available memory is doubled, the mean interval between page faults is also ... memory were available? (A) 60 sec (B) 30 sec (C) 45 sec (D) 10 sec

Last Answer : Answer: C Explanation: T = Ninstr x 1µs + 15,000 x 2,000 µs = 60s Ninstr x 1µs = 60,000,000 µs - 30,000,000 µs = 30,000,000 µs Ninstr = 30,000,000 The number of instruction ... doesn't mean that the program runs twice as fast as on the first system. Here, the performance increase is of 25%.

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The contents of Register (BL) and Register (AL) of 8085 microprocessor are 49H and 3AH respectively. The contents of AL, the status of carry flag (CF) and sign flag (SF) after executing 'SUB AL, BL' assembly language instruction, are (1) AL=0FH; CF=1; SF=1 (2) AL=F0H; CF=0; SF=0 (3) AL=F1H; CF=1; SF=1 (4) AL=1FH; CF=1; SF=1

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Last Answer : Answer: 3

Should we privileged people of the US cut some slack to those immigrants from 3rd world nations on possible body odor?

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Last Answer : answer:I've heard these same comments most frequently made about the French and last I checked, they're not exactly a Third World country (many apparently don't believe in either frequent bathing nor in ... conference for movement theater performers.) And this was in a week or two in the summer :).

True or False: Hockey is a privileged sport?

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If you got to choose to grow up privileged or disadvantaged, which you honestly choose?

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Last Answer : You can be rich and end up being lonely and unhappy? You can be the happiest person but you might be poor so honestly speaking, as long as I’m happy it doesn’t matter. I think I would choose to be raised in a family of privilege and then help out the poor? Sounds fair :)

What can I do to understand the less privileged?

Description : What can I do to understand the less privileged?

Last Answer : Lately I have been speaking to someone who has gone through a lot of hardship and trauma, and all I want is to understand what living in a country with a lot of crime, abuse, lack of ... were traumatic, that they are willing to share about trips or honest work I would really love to listen.

What is an administrative (privileged) user? (for DBA

Description : What is an administrative (privileged) user? (for DBA

Last Answer : Oracle DBAs and operators typically use administrative accounts to manage the database and database instance. An administrative account is a user that is granted SYSOPER or SYSDBA privileges. SYSDBA ... and special operating system groups. This password file is created with the orapwd utility.

Working papers prepared by a CPA in connection with an audit engagement are owned by the CPA, subject to certain limitations. The rationale for this rule is to a. Protect the working papers from, being subpoenaed. b. Provide the CPA with evidence and documentation which may be helpful in the event of a lawsuit. c. Provide the basis for excluding admission of the working papers as evidence because of the privileged communication rule. d. Establish a continuity of relationship with the client whereby indiscriminate replacement of CPAs is discouraged.

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Last Answer : Provide the CPA with evidence and documentation which may be helpful in the event of a lawsuit.

The working papers prepared by a CPA in connection with an audit engagement are owned by the CPA, subject to certain limitations. The rationale for this rule is to a. Protect the working papers from being subpoenaed. b. Provide the basis for excluding admission of the working papers as evidence because of the privileged communication rulec. Provide the CPA with evidence and documentation which may be helpful in the event of a lawsuit. d. Establish a continuity of relationship with the client whereby indiscriminate replacement of CPAs is discouraged.

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Which statement is true regarding the user exec and privileged exec mode? A. They both require the enable password B. User exec is a subset of the privileged exec C. The '?' only works in Privileged exec D. They are identica

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