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Marianna [84]
2 years ago
13

Given the following schedule, show the locks that will occur and the subsequent schedule. Assume that strict 2PL is in effect, w

ith no deadlock prevention and no starvation prevention. Assume that upgrading locks are allowed, downgrades are not. Assume that requests will be satisfied in the order of arrival if possible.
T1:R(X), T2:R(Q), T3:R(Q), T(2):R(X), T3:R(X), T2:W(X), T2:Commit, T3:Abort, T1:W(X), T1:Commit

Computers and Technology
1 answer:
Alexxandr [17]2 years ago
4 0

Answer:

see explaination

Explanation:

Please kindly check attachment for the step by step solution of the given problem

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Banking Account
satela [25.4K]

Answer:

Here is the Python script solution.

Explanation:

#!/usr/bin/python

"""Types of bank accounts"""

# Assignment:

# Bank Account Manager - Create a class called Account which will be an abstract

# class for three other classes called CheckingAccount, SavingsAccount and

# BusinessAccount. Manage credits and debits from these accounts through an ATM

# style program.

from __future__ import print_function

def pct_to_dec(num):

"""Returns decimal version of percent"""

dec = float(num) / 100

return dec

class Account(object):

"""Creates an Account"""

def __init__(self, balance, int_rate, act_type, min_balance, **kwargs):

self.balance = balance

self.int_rate = int_rate

self.act_type = act_type

self.min_balance = min_balance

super(Account, self).__init__(**kwargs)

def __str__(self):

"""Returns formatted account type and balance"""

# Charge $25 fee if balance drops below minimum

if self.balance < self.min_balance:

self.balance -= 25

# Add interest

self.balance += round(self.balance * pct_to_dec(self.int_rate), 2)

return '{0}: ${1}'.format(self.act_type, self.balance)

class CheckingAccount(Account):

"""Creates a CheckingAccount Account"""

def __init__(self, **kwargs):

super(CheckingAccount, self).__init__(**kwargs)

class SavingsAccount(Account):

"""Creates a SavingsAccount Account"""

def __init__(self, **kwargs):

super(SavingsAccount, self).__init__(**kwargs)

class BusinessAccount(Account):

"""Creates a BusinessAccount Account"""

def __init__(self, **kwargs):

super(BusinessAccount, self).__init__(**kwargs)

# pylint: disable=C0103

ca1 = CheckingAccount(balance=500, int_rate=0.25, act_type='Checking Account',

min_balance=0)

sa1 = SavingsAccount(balance=50, int_rate=0.50, act_type='Savings Account',

min_balance=0)

ba1 = BusinessAccount(balance=4000, int_rate=0.75, act_type='Business Account',

min_balance=5000)

# Month #1 statement, initial deposits plus interest

print(ca1)

print(sa1)

print(ba1)

print('-------------')

# Month #2 statement plus interest

# Make deposit into checking

setattr(ca1, 'balance', (ca1.balance + 1000))

# Withdraw from checking

setattr(ca1, 'balance', (ca1.balance - 500))

# Make a deposit into savings

setattr(sa1, 'balance', (sa1.balance + 100))

print(ca1)

print(sa1)

print(ba1)

print('-------------')

# Month #3 statement plus interest

# Make deposit into checking

setattr(ca1, 'balance', (ca1.balance + 2500))

# Withdraw from checking

setattr(ca1, 'balance', (ca1.balance - 700))

# Make a deposit into savings

setattr(sa1, 'balance', (sa1.balance + 100))

# Make a deposit into business

setattr(ba1, 'balance', (ba1.balance + 1000))

print(ca1)

print(sa1)

print(ba1)

4 0
3 years ago
Adobe Indesign project 4 museum indesign file. The instructions are 70 pages long I cant sit still long enough to read them
Alchen [17]

Answer:

? Read on to learn about the possible reasons and resolutions. ... Check whether you have the latest update installed for InDesign. ... InDesign cannot open the file when your system does not have enough memory ... Copy page elements into a new document.

Explanation:

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solmaris [256]

Answer:

A wave of sound!

Explanation:

sound waves are sound but sound comes in different wavelengths

7 0
2 years ago
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notka56 [123]

Answer:

popleft

Explanation:

5 0
2 years ago
BRAINLIEST
Brilliant_brown [7]

Answer:

1. Don't

2. Do

3. Don't

4. Don't

5. Do

Hope it helps.......

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2 years ago
Read 2 more answers
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