Advanced Operating System with UNIX
Unit : 1 to 4
Total Marks : 92 Marks
!! Every Question for 1 Marks !! 20 Marks
Q : 1 The ------- is the component that on one side manages and controls the hardware and other manages the application.
(A) Control Unit (B) State control (C) System (D) Operating System
Q : 2 Most boot ROMs do some hardware initialization but not much. Initialization of I/O devices is part of the ---------------.
(A) Operating system (B) Unix kernel (C) Control unit (D) Unix
Q : 3 The operating system switches between your processes so quickly than it can appear that the Processes are executing simultaneously, this concept is referred to as -----------------.
(A) Multitasking (B) Time-sharing (C) Multiprocess (D) Both A and B
Q : 4 The operating system provide some service like send data to a printer etc. this is referred as ---------.
(A) Resource (B) allocation (C) Resource allocation (D) All
Q : 5 At the center of the UNIX onion is a program called the ----------------------.
(A) Operating system (B) kernel (C) Control unit (D) Unix
Q : 6 The ------ provides the essential services that make up the heart of UNIX system.
(A) System (B) kernel (C) system calls (D) Unix
Q : 7 At & T bell laboraratories was participating in an effort to develop a new operating system called ------.
(A) Multitask (B) UNIX kernel (C) Multics (D) UNIX
Q : 8 USG is stands for --------------------------.
(A) Unix Suppose Grade (B) Unix Support Grade (C) Unix Support Grand (D) Unix Support Group
Q : 9 USL stands for ----------------------------.
(A)Unix Support Lab (B) Unix System Lab (C) Unix Support Laboratories (D) Unix System Laboratories
Q : 10 The part of UNIX that manages the hardware and the executing processes is called the -------------.
(A) Operating system (B) Kernel (C) Control unit (D) Unix
Q : 11 ----- contains the barebones UNIX the root directories.
(A) Root (B) kernel (C) Swap (D) Unix
Q : 12 -------- is used by the kernel to movement of processes.
(A) Root (B) Sweep (C) Move (D) Swap
Q : 13 The real-time scheduler, --------- run as process 0 on SVR5 systems.
(A) Root (B) Swap (C) Both (D) Sched
Q : 14 A ----- is a one way mechanism that allows two related process for communication.
(A) Socket (B) Shared memory (C) Pipe (D) Fifos
Q : 15 A ----------queue is a queue onto which massages can be placed.
(A) Socket (B) Pipe (C) Both A and B (D) Message
Q : 16 A -------- is a resource that contains an integer values and allows processes to synchronize by testing and setting this value in a single atomic operation.
(A) Pipes (B) Message (C) Semaphore (D) None of above
Q : 17 ------- will prevent other people from accidentally or intentionally getting access to you files.
(A) Logged in (B) Root (C) Pipes (D) Logging Out
Q : 18 The rest of the words in the command are called the command’s arguments.
(A) False (B) True (C) None (D) Can’t say
Q : 19 The -------- control character is used to signal the end of input.
(A) EOF (B) Stop (C) Restart (D) Both B and C
Q : 20 The ------- control character is similar to the erase control character.
(A) EOF (B) STOP (C) Kill (D) Start
@@ Every Question for 2 Marks @@ 24 Marks
Q : 21 state True/False
1. UNIX is a very powerful and fast operating system.
2. UNIX dates back into 1670s.
(A) True, False (B) Both false (C) False, True (D) Both true
Q : 22 state True/False
1. All Unix command and file references are case insensitive.
2. All Unix commands are uppercase and from two to nine character long.
(A) True, False (B) Both false (C) False, True (D) Both true
Q : 23 Fill the blank with appropriate word.
1. * is a ----- character that can refer to any character string.
2. ---- is a ------ character that can refer to any single character.
(A) Wild, ?, wildcard (B) Wildchar, ?, Wildcare (C) Wildcard, @, wildcard (D) None
Q : 24 state True/False
1. The famous C programming language was developed for and on UNIX.
2. The UNIX operating system itself was rewritten into C.
(A) True, False (B) False, False (C) True, True (D) False, True
Q : 25 There are current efforts to make Linux reliably run both ------------ and ------------.
(A) SVR3, SVR4 (B) SVR3.5, SVR4 (C) SVR4, SVR 3.2 (D) SVR4, SVR4.2
Q : 26 state True/False
1. Most UNIX system split a disk into a many five partition.
2. Most UNIX systems will always have these two file system.
(A) True, False (B) Both false (C) False, True (D) Both true
Q : 27 UNIX systems will always have these have these ----------- and -----------.
(A) Root, Swap (B) Script, Swap (C) Root, Sweep (D) Script, Root
Q : 28 BSD systems starts three initialization Processes ;---------,--------- and -----------.
(A) init, pagedaemon, swap (B) pagedaemon, init, swapper
(C) pagedaemon, swapping, root (D) Swapper, init, Sched
Q : 29 Two types of operations can be carried on a semaphore : -------- and -----------.
(A) Wait, Pipe (B) Pipes, Wait (C) Signal, Wait (D) semget, wait
Q : 30 state True/False
1. A shared memory segment first need not to be allocated, using the shmget() system call.
2. UNIX also has security to help prevent different users from harming each on a multiuser system.
(A) True, False (B) True, True (C) False, False (D) False, True
Q : 31 The control character are stop and start, their normal values are ------ and ------- respectively.
(A) ^S, ^O (B) ^Q, ^S (C) ^S, ^Q (D) ^S, ^P
Q : 32 ------- and ---------- create user’s home directories in/home.
(A) Root, SVR4 (B) SRV4, Linux (C) Linux, SVR4 (D) Root, Swap
$$ Every Question obtained 4 marks $$ 48 Marks
Q : 33 Identify from following which are the functions of OS hardware.
1. Application reads a tape 2. Application waits for data 3. Process displays data on screen
4. You turn of you computer 5. You quit, the process terminates 6. Process writes data to tapes
(A) 1,2,3,4,5 (B) 1,3,4,5,6 (C) 1,3,4,6 (D) All of above
Q : 34 There are several common key item throughout UNIX find it.
1. No files types 2. Simple, Orthogonal commands
3. A common option interface style 4. Commands connected through pipes
(A) Only 2,3 (B) 1,2 (C) 1,2,3 (D) All of above
Q : 35 Match the following
(A) (B)
1. / a. path beginning as absolute path.
2. . b. for the subdirectory one level up from the current directory.
3. .. c. for current directory.
4. ~ d. Directory shortcuts include for home directory.
(A) 1-a,2-b,3-c,4-d (B) 1-c,2-b,3-d,4-a (C) 1-d,2-c,3-a,4-b (D) 1-a,2-c,3-b,4-d
Q : 36 Match the following.
(A) (B)
1. A a. Toggle a bootable flag
2. N b. Add a new partition
3. P c. Print partition table
4. M d. Print this menu
(A) 1-d,2-a,3-c,4-b (B) 1-b,2-a,3-d,4-c (C) 1-a,2-b,3-c,4-d (D) 1-c,2-a,3-d,4-b
Q : 37 Match the following.
(A) (B)
1. proc a. Creating partition
2. Fdisk b. the standard files system of Linux.
3. mkfs c. Creating file system
4. Ext2 d. Pseudo-file system maintain in memory
(A) 1-d,2-a,3-c,4-b (B) 1-a,2-b,3-d,4-c (C) 1-a,2-b,3-c,4-d (D) 1-c,2-a,3-d,4-b
Q : 38 Match the following according to command : device/mount-point fstype options dumpfreq passno.
(A) (B)
1. fstype a. The file system type to pass to mount.
2. device b. A device name
3. Options c. A directory
4. mount-point d. Either rw for Read-Write file system.
(A) 1-d,2-a,3-c,4-b (B) 1-a,2-b,3-d,4-c (C) 1-a,2-b,3-c,4-d (D) 1-c,2-a,3-d,4-b
Q : 39 FSCK conducts a check in five phases, find it from following.
1. FSCK’s free-block count is compared with the figure maintained in the superblock.
2. Looks for unreferenced.
3. Validates the inodes for correctness of format and the block numbers for bad and duplicate blocks.
4. check all directory entries.
5. checks the link count as stored in the inode with the directory entries.
(A) All of above (B) 1,2,3,4 (C) 1,3,4,5 (D) 2,3,4,5
Q : 40 The bootstrap procedure is consists of the following step. Arrange it.
1. The memory-resident code.
2. Runs self-test.
3. probes bus for the boot device.
4. Reads the boot program from the boot device.
(A) 4,1,2,3 (B) 3,2,1,4 (C) 1,2,3,4 (D) 4,3,2,1
Q : 41 Match the following.
(A) (B)
1. sysinit a. wait for the process to complete.
2. wait b. restart the process whenever it dies.
3. once c. Perform system initialization.
4. respawn d. run the process only once.
(A) 1-d,2-a,3-c,4-b (B) 1-a,2-b,3-d,4-c (C) 1-a,2-b,3-c,4-d (D) 1-c,2-a,3-d,4-b
Q : 42 Match the following.
(A) values (B) commands
1. 0 a. Can’t remove home directory.
2. 12 b. User currently logged in.
3. 2 c. Bad command syntax.
4. 8 d. Success.
(A) 1-d,2-a,3-c,4-b (B) 1-a,2-b,3-d,4-c (C) 1-a,2-b,3-c,4-d (D) 1-c,2-a,3-d,4-b
Q : 43 Match the following.
(A) (B)
1. PID a. stands for Process identification
2. GID b. The group ID of the user that owns this process.
3. Priority c. The priority that this process runs at.
4. UID d. The user ID number of the user that owns this process.
(A) 1-d,2-a,3-c,4-b (B) 1-a,2-b,3-d,4-c (C) 1-a,2-b,3-c,4-d (D) 1-c,2-a,3-d,4-b
Q : 44 Match the following.
(A) (B)
1. PRI field a. stands for priority field.
2. P flag b. this is the processor flag.
3. COMD field c. The command that was execute.
4. SZ field d. This refers to the size field.
(A) 1-d,2-a,3-c,4-b (B) 1-a,2-b,3-c,4-d (C) 1-a,2-b,3-c,4-d (D) 1-c,2-a,3-d,4-b
*** Best of Luck ***
Unit : 1 to 4 Time : 1 Hour
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