Answer / chinavenkannababu

Virtual memory is a computer system technique which gives
an application program the impression that it has
contiguous working memory, while in fact it is physically
fragmented and may even overflow on to disk storage.
Systems which use this technique make programming of large
applications easier and use real physical memory (e.g. RAM)
more efficiently than those without virtual memory

Answer / irshad

* virtual memory :-Space on a hard disk used to temporarily
store data and swap it in and out of RAM as needed.

*virtual memory:- created by using the hard disk to simulate
additional random-access memory; the addressable storage
space available to the user of a computer system in which
virtual addresses are mapped into real addresses)

How many VI editor modes do you know?

8 Answers   Infosys,

---

How do you list the files in an UNIX directory while also showing hidden files?

4 Answers  

---

What is egrep?

2 Answers  

---

How to give root privileges without using SU/sudor ?

1 Answers  

---

What is YACC?

0 Answers   Cisco,

---

how to set request time out value for name resolution on clients (hp-ux) ?

1 Answers   Amdocs,

---

What is paging?

2 Answers   BMC,

---

How to remove weird filenames?

1 Answers  

---

What is the main advantage of creating links to a file instead of copies of the file?

5 Answers   Cisco, ING,

---

Have you used VI editor?

1 Answers   BMC,

---

What scripting languages do you know?

1 Answers  

---

What is a level 0 backup?

2 Answers   Atos Origin,

---