Answer:
Make use of hash tables
Explanation:
The appropriate thing to use for this should be a hash table.
A Hash Table can be described as a data structure which stores data in an associative manner. In a hash table, data is stored in an array format, where each data value has its own unique index value. Access of data becomes very fast if we know the index of the desired data. So we can perform Hashing on ISBN Number since its unique and based on the Hash Function w ecan store the Information record.
There is no requirement for printing the file in order - HashTables dont store the data in order of insertions, so no problems with that
It becomes a data structure in which insertion and search operations are very fast irrespective of the size of the data. So Querying books details can be fast and searching will take less time.
It can also be pointed out that it wont be too expensive for Hardware implemtation as HashTables stores data based on Hash Functions and memory consumption is also optimal which reduces memory wastages.
Answer:
The correct answer is B)
Explanation:
The commit command allows us to:
• Consolidate, confirm
• committing refers to the idea of confirming a set of provisional changes permanently.
• A popular use is at the end of a database transaction.
•
The LOCK TABLE command should be used:
• when a lock of the mode specified in the table can be acquired.
• The command will wait for everything you need to get the lock,
• In case you cannot acquire the lock immediately, the NOWAIT option is specified so that the command cancels the transaction.
U have to double-click for multiple paragraphs instead of single click
Answer:
<u>Scalable database</u>
Explanation:
Good examples of a scalable database include; NoSQL database, MySQL, Microsoft SQL.
<em>Remember</em>, these databases are called scalable databases because they support memory expansion without a measurable performance decrease.
For example, if the management of a hotel notices that its 1 terabyte computer used to store its security videos is no longer adequate to meet the hotel's expansion, then decide to buy a newer server that can be integrated into the current system. We can say they just applied the concept of scalable databases.
Answer:
You can setup firewall rules with for example iptables on Linux. The rules should block source addresses of private IP ranges such as 192.168.*.* and 10.*. *. * etc. Check private IP ranges for full list.
It will however not guarantee prevention of IP spoofing in general as its not possible to prevent such attacks. Its the responsibility of ISPs. But the question asked for private IP spoofing and then the above works.
