Czarnowski and Triantafyllou learned that boat propellers are not very efficient, except penguin propulsion systems.
Answer:
a feeling of smug or uncritical satisfaction with oneself or one's achievements.
Explanation:
Before starting an inboard gasoline engine, you should
remove the engine cover completely to let the engine air out. Next is to change
the fuel filter or the water separator. Marine fuel filters and water
separators help draw water from the boat fuel, therefore protecting the motor
from the water. If water were to get in, it could cause serious problems.
You should also consider changing the engine oil. This is
especially so if the motor boat has been sitting around for a while. The fourth
step is to change the oil filter. It is recommended that the oil filter is
changed every 100 hours or every season. Other steps include;
Recharge the battery.
Refuel your boat.
Check the cooling system.
Answer:
Disadvantages of public key cryptography is that : Assymetric cryptography is slower than the private key cryptography.
Explanation:
We are dealing with big data applications most of time. Almost all applications are data intensive. Private key cryptography which is also known as symmetric cryptography. Symmetric cryptography based systems are faster. Since there is no key transmitted with the data, encrypted data can be transferred over the channel or session even if the path is vulnerable or have chances of interception as the chances of decrypting the data is almost impossible.
Also, The identity of the receiver is guaranteed using the password based authentication used by symmetric crypto systems. Only the trusted receiver who has the access to the secret key can only decrypt the payload
Public Key Cryptography is slower than private key cryptography. Today’s application’s are data intensive. In case of data intensive applications , encrypting huge data will take a lot more time than that of symmetric key cryptography. Whenever Bulk data transmission is needed symmetric key cryptography is preferred. Secret key based crypto systems have proven to be more faster than any currently available assymetric key based crypto systems.
