Describe DNS
What do you mean by DNS? Explain why it is used? Also describe ‘forward lookup’ and ‘reverse lookup in the DNS?
Expert
DNS is the domain naming service and is employed for resolving the names to IP address and IP addresses to names. The computer comprehends only numbers while we can simply remember names. Therefore to make it simpler for us what we do is we allocate names to computers and websites. Whenever we use these names the computer utilizes DNS to transform to IP address (number) and it executes our request.
Forward lookup: Transforming names to IP address is termed as forward lookup.
Reverse lookup: Resolving the IP address to names is termed as reverse lookup.
What is meant by the virtual memory?
Define term bus and controller?
Briefly describe the condition when the system is in safe state?
Describe briefly the term read-write locks?
What do you understand by the concept of Reentrancy?
Write down the various states of the process that are available?
Describe the Buddy system of the memory allocation.
What is Process? Explain in brief.
What do you mean by the Direct Communication?
Describe the tern reservation? Write down a brief note on it.
18,76,764
1933605 Asked
3,689
Active Tutors
1431228
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!