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Q. Describe about Digital Audio Tape?
The most proper tape for backing up data from a disk today is Digital Audio Tape (DAT). It employs a 4mm tape covered in a cartridge. It employs a helical scan, read after write recording scheme that provides reliable data recording. Head spins at a high speed while tape moves. Very high recording densities are attained. It employs a recording format known as Digital Data Storage (DDS) that provides three levels of error correcting code to make sure excellent data integrity. Total capacity is up to 4GB with a data transfer speed of 366KB/sec. This tape employs SCSI interface.
Q. What is the dissimilarity between a lens and a mirror? Answer:- A mirror is a reflective surface that light passes through the glass and hits the silver backing reflect
Security features used in Client-Server types of network are as follows : i) Digital Signatures ii) Encryption / Decryption iii) Secure Socket Layer (SSL) iv) Firewa
Q. Addition of array elements using two processors? In this example we have to find sum of all elements of an array A of size n. We will divide n elements in 2 groups of roughl
How optimization is achieved in DNS? Two primary optimizations used in DNS and they are: replication and caching. All root servers is replicated; various copies of the server
Difference between the testing and verification. Verification proves conformance with a specification. Testing tries to find cases where the system does not meet its specifi
Explain characteristics of program translation model. The program translation model characteristics are: A program should be translated before this can be executed.
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Write the Add/subtract rule for floating point numbers. Ans: a. Select the number with the smaller exponent and shift its mantissa right a number of steps equal to the differe
Discuss the basic entities of World Wide Web in brief. World Wide Web: This is a complicated client/server system in that a web client communicates along with the web ser
State how Shared Memory is used for inter process communication. Define how ptrace is used by debuggers. What are modules? Explain how data mapping takes place among modules
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