Why is it required to maintain a parent-child relationship among the various attributes? What are the various types of relationships depending on the number of participants?

1013

Tell me what is the difference between unset() and unlink()?

1092

Explain replication factor (rf)?

208

Protactinium-231 emits alpha particles. How can this property be utilized in radiation detectors or other scientific instruments?

634

.We want to compare the performance of a single threaded disk server with a multithreaded 1. Suppose the server takes 25 ms to receive a request for work from client, dispatch the request for processing and actual data request processing when reqd. Data is in main memory. If the reqd. Data is not in the main memory a real disk operation is needed and an additional 75 ms are reqd. On the average. On the average 25% of the clients requests access the disk. During the disk I/O period the thread waits. Assume that there is no other process in system when the server is running. How many requests can the server handle per second if its a)single threaded b)multithreaded

1952

What grep means?

919

Can you wipe clean a hard drive?

901

What is the difference between command ‘ping’ and ‘ping6’?

1128

mention the database server operating modes available for informix?

71

Define what is a high-pass filter?

1010

What are the parts of the visual basic control?

953

Declare pages?

519

An atom has 18 protons and 22 neutrons. Tell me its mass number?

994

How many types of cluster table in Oracle?

1034

What is mta?

1054