STUPIDSID
Answer any one question from Q1 and Q2
1 (a)
Define the following OS terms:
(i) Multiprogramming (ii) Multitasking
(iii) Multiprocessing
(iv) Multithreading
(v) Monolithic kernel
(vi) Microkernel.
(i) Multiprogramming (ii) Multitasking
(iii) Multiprocessing
(iv) Multithreading
(v) Monolithic kernel
(vi) Microkernel.
6 M
1 (b)
Explain the file system data structures of UNIX with neat diagram (UFDT, FT and IT).
6 M
2 (a)
Draw and explain the block diagram of system kernel.
6 M
2 (b)
Draw and explain the 4 state process diagram (inclusive of
kernel and user modes).
6 M
Answer any one question from Q3 and Q4
3 (a)
Explain the different types of files in UNIX. Also give the command to display the same. List the different categories of users in UNIX.
6 M
3 (b)
Explain the following commands in UNIX: grep, ripe, stat, mount, chmod and ln.
6 M
4 (a)
Differentiate between Grub and Lilo.
3 M
4 (b)
Explain the run levels of Booting process in UNIX.
6 M
4 (c)
Explain any three characteristics of perl programming.
3 M
Answer any one question from Q5 and Q6
5 (a)
Explain in detail signal and kill function with parameters.
4 M
5 (b)
Explain the following UNIX commands:
nice, renice, top, prstat, strace.
nice, renice, top, prstat, strace.
5 M
5 (c)
Differentiate between the following:
(i) Modern Access Control and Real World Access Control
(ii) User mode and Kernel mode.
(i) Modern Access Control and Real World Access Control
(ii) User mode and Kernel mode.
4 M
6 (a)
Explain the concept of:
(i) nobody account
(ii) real, effective and save id's
(iii) setuid and setgid commands.
(i) nobody account
(ii) real, effective and save id's
(iii) setuid and setgid commands.
6 M
6 (b)
Explain runaway processes, sudo command and su command.
3 M
6 (c)
Explain the concept of:
(i) shadow password
(ii) pseudo users with respect to /bin/false and /bin/nologin.
(i) shadow password
(ii) pseudo users with respect to /bin/false and /bin/nologin.
4 M
Answer any one question from Q7 and Q8
7 (a)
Give the entries of /etc/passwd file and /etc/group file.
6 M
7 (b)
Explain the following:
(i) fsck
(ii) mkfs
(iii) file system mounting.
(i) fsck
(ii) mkfs
(iii) file system mounting.
6 M
7 (c)
Define disc partitioning.
1 M
8 (a)
Explain the following:
(i) useradd
(ii) userdel
(iii) RAID.
(i) useradd
(ii) userdel
(iii) RAID.
6 M
8 (b)
List any three storage devices.
3 M
8 (c)
Differentiate between the following:
(i) SATA and PATA
(ii) UNIX and Linux.
(i) SATA and PATA
(ii) UNIX and Linux.
4 M
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