Answer:
Giving that: The following is a sequence of undo-log records written by 2 transactions T and U:
< START T >;
< T,A,10 >;
< START U >;
< U, B, 20 >;
< T, C, 30 >;
< U, D, 40 >;
< Commit U >;
< T, E, 50 >;
< Commit T >;
1. < START U >
Recovery action in this case will be undo(-1) and undo(0). All restored to its original Value
log records < T, A, 10 >, < T, abort >; as written out
2. < T, E, 50 >
Recovery action in this case will be undo(8) and redo(0). A and C is restored to its original value, B and D are set to 20 and 40
log records <T, C, 30 >, < T, A, 10 >, < T, abort > are written out
3. < Commit T >
Recovery action in this case will be redo(7) and redo(4). A and C are set to 10 and 30, B and D are set to 20 and 40
Answer:
Explained
Explanation:
Yes, I agree that digital signatures are the best way to protect the data in the date in question. A digital signature is mathematical technique used to validate the authenticity and integrity of a massage. Digital signature is far more inherent security. It is built to solve problems of tempering and impersonation of digital documents. It allows the authorized user to have authentic right, and the unauthorized person is denied access.
A router is a web device that directs packages over a web towards their final destination is true.
<h3>What is the router?</h3>
- A router is a machine that combines two or more packet-switched grids or subnetworks.
- A router accepts and data transmits on computer networks. Routers are sometimes confused with network hubs, modems, or network controllers.
- However, routers can integrate the functions of these components, and secure with these devices, to improve Internet entry or help create interaction networks.
- A router is a device that is used for forwarding the internet connection to all the related devices.
- A Wi-Fi connects the networking parts of a router and a wireless access point.
- A wireless router (or Wi-Fi router) works much like a wired router, but it returns wires with wireless radio calls.
To learn more about router, refer to:
brainly.com/question/24812743
#SPJ4
Answer:
a=input("Amount in pennies")
b=int(a)
dollars=0
dimes= 0
quarters=0
nickels=0
pennies = 0
dollars = int(b/100)
b= b- dollars *100
quarters=int(b/25)
b=b-quarters*25
dimes = int(b/10)
b = b -dimes*10
nickels=int(b/5)
b=b - nickels * 5
pennies = b
print(dollars)
print(dimes)
print(nickels)
print(pennies)
Explanation:
The required program is in answer section. Note, the amount is entered in pennies.
Multiple inheritance causes Diamond problem which happens when:
Class A is parent of class B and C
Now when class D will be inherited from both Class B and C it will have all the members of class A and B which if same will confuse the compiler to import which one?
C++ solves it by using virtual keyword with them and thus telling the compiler which one to inherit.
Java has introduced the interface concept rather then allowing multiple inheritance.
