Comp Concepts Midterm/Final
In Linux, the system administrator's home directory is stored under ... a. /root b. /home c. /sbin d. /sys e. /bin
/root
The process and the program are the same; the two terms can be used interchangeably.
false
Computers today are more easily identifiable than computers in the past.
false
All files have names although the extension is not required.
true
While any device can issue an interrupt, is it the operate system that handles interrupts.
true
With virtual memory, only portions of the running program are stored in memory.
true
In Windows, the Programs top level directory stores applications software. In Linux, the equivalent directory is ... a. /etc b. /user c. /var d. /bin e. /home
/usr
Which of the following is the largest storage capacity? a. 10,000 Kilobytes b. 1,000,000 bits c. 100 Megabytes d. 3,000,000 bytes e. 4 Gigabytes
4 Gigabytes
If a hard disk contains 4 platters, how many read/write heads will the hard disk contain? a. 2 b. 16 c. 8 d. 4 e. 1
8
As an IT person, one should be someone who enjoys learning on your own.
true
A multithreaded operating system is more efficient than a multitasking operating system when executing threads.
true
Under which Linux top-level directory would you find most of the configuration files? a. /etc b. /home c. /usr d. /var e. /bin
/etc
Which of the following files stores user account information? a. /etc/shell b. /etc/sudoers c. /etc/users d. /etc/passwd e. /etc/shadow
/etc/passwd
Under which Linux top-level directory would you fine the user directories? a. /etc b. /bin c. /var d. /home e. /usr
/home
In Linux, you would expect to find many of the system administrator programs stored under ... a. /bin b. /root c. /sbin d. /var e. /boot
/sbin
System administrators should know more than one operating system.
true
System administrators will be expected to provide support in the form of documentation and training to the organization's users.
true
The foreground process is the one that the user can directly interact with.
true
The operating system is software.
true
To create a directory, both Linux and DOS use mkdir.
true
User passwords are not actually stored in the /etc/passwd file.
true
You can separately mount and unmount each individual partition.
true
In Linux, the administrator account is called ... a. ... superuser b. ... # c. ... administrator d. ... su e. ... root
... su
In a linked list, to reach the 5th block, how many links do you have to follow? a. 0 b. 2 c. 4 d. 5 e. 1
4
Volatility is a property of which of the following? a. Memory b. All of the above c. Hard disk storage d. Processors e. Users
Memory
Which of the following files stores the currently mounted file systems (partitions) in Linux? a. /etc/motd b. /etc/sudoers c. /etc/mtab d. /etc/resolv.conf e. /etc/fstab
/etc/mtab
To determine where a given page is stored in memory, the operating system uses ... a. ... the page table b. ... device drivers c. ... synchronization d. ... cache e. ... the file allocation table
... the page table
The file system for Windows and Linux are "shapes" like a ... a. ... window b. ... tree c. ... disk d. ... well e. ... building
... tree
A computer system consists of the hardware, software and ... a. ... users b. ... network c. ... peripheral devices d. ... programs e. All of the above
... users
In Linux, devices like the disk drives, USB drives, network devices and monitor are treated as files. These "files" are stored under which directory? a. /dev b. /etc c. /mnt d. /bin e. /sbin
/dev
GRUB is an example of ... a. ... a BIOS b. ... an operating system c. ... an operating system kernel d. ... a boot loader program e. ... initialization script
... a boot loader program
When the CPU moves from one process to another in multitasking, this is known as ... a. ... interprocess communication b. ... a context switch c. ... stack access d. ... timer interrupt e. ... synchronization
... a context switch
If a process generates an address that is part of another process' area of memory, this is known as ... a. ... a memory violation b. ... a page fault c. None of the above: this is not possible d. ... an interrupt e. ... a context switch
... a memory violation
The system unit houses the CPU and memory chips all placed on ... a. ... a monitor b. ... None of the above, the system unit houses the CPU but not the memory c. ... a motherboard d. ... an expansion slot e. ... ROM
... a motherboard
If an entry in a page table is listed as not valid, then accessing that page will cause ... a. ... the system to reboot b. ... a logical error c. ... a run-time error d. ... a page fault e. ... a core file to be generated
... a page fault
The zip and tar programs can be used to create ... a. ... copies of files b. ... partitions c. ... archives d. ... lossy compressed files e. ... directories
... archives
Files are broken into fixed sized units called ... a. ... pages b. ... partitions c. ... breaks d. ... blocks e. ... printers
... blocks
File name extensions are primarily used ... a. ... by the user to know whether the file can be executed or not b. ... by the user to know how recent the file is c. ... by the operating system to know what software to use to open the file d. All of the above e. ... by the system administrator to ensure the file is properly protected
... by the operating system to know what software to use to open the file
In order for the operating system to be able to communicate with a specific piece of hardware, one must install the appropriate ... a. ... interpreter b. ... kernel c. ... cache d. ... shell e. ... device driver
... device driver
The /proc top level directory is different from most other Linux top level directories because it ... a. ... is not stored on disk but instead stored in memory b. ... never changes so it never has to be backed up c. ... is writeable by both root and all users d. ... is only used if your computer has multiple processors e. None of the above: there is nothing different about /proc from other top-level directories
... is not stored on disk but instead stored in memory
With file blocks distributed across the file system instead of being stored in consecutive disk blocks, accessing the file requires traversing the blocks creating what one might call a ... a. ... directory/subdirectory structure b. ... track trail c. ... partition d. ... linked list e. ... breadcrumb trail
... linked list
Mounting ... a. ... converts a soft link to a hard link b. ... removes a partition c. ... makes a partition available d. ... moves a directory from one location to another e. ... alters a file's location in the file system
... makes a partition available
Two threads will always share the same ... a. ... program code b. ... register values c. All of the above d. ... path through the program code e. ... data
... program code
If users use passwords containing non-alphabetic characters or a combination of upper and lower case letters, this ... a. ... promotes computer security b. ... helps the system administrator with troubleshooting c. ... helps users remember their passwords d. ... ensures proper file protection e. ... helps the system administrator track user access
... promotes computer security
In file compression, lossy compression ... a. ... reduces the file size but requires uncompression the file before its contents can be viewed/used b. ... increases the file size by uncompression portions of it c. ... reduces the file size by eliminating unnecessary content d. ... increases the file size by inserting additional data e. ... reduces the file size by discarding some of the data
... reduces the file size by discarding some of the data
When two threads need to "meet up" in order to share data, this is known as ... a. ... a deadlock b. ... synchronization event c. ... rendezvous d. ... an interrupt e. ... interval
... rendezvous
The system administrator is responsible for each of the following tasks except... a. ... training users b. ... troubleshooting hardware c. ... installing software d. ... updating the operating system e. ... securing a website
... securing a website
The time it takes the read/write head to move across the disk to the proper track is called ... a. ... rotational delay (or rotational latency) b. ... seek time c. ... traversal time d. ... transfer time e. ... access time
... seek time
Bourne is an example of a Linux ... a. ... GUI b. ... device driver c. ... shell d. ... kernel e. ... utility program
... shell
The portion of the operating system that must be resident in memory at all times is ... a. ... system utilities b. ... the device drivers c. ... the kernel d. ... the GUI e. ... virtual machines
... the kernel
A security administrator would be responsible for which of the following? a. A firewall b. A database server c. A website d. An operating system e. A web server
A firewall
Which of the following types of files would come closest to about 1 MByte in size? a. A textfile with 1 page of text b. A long song stored in an mp3 file c. A small black and white image file d. A highly compressed movie e. An uncompressed movie
A small black and white image file
Which of the following behaviors might be considered as unethical from the position of a system administrator? a. Setting up backdoor accounts b. Reading employees' emails c. Changing data files in the organization's system for one's own gain d. All of the above e. Accessing other people's files
All of the above
Which of the following tasks would not be possible for a system administrator to do on the file system? a. Encrypt portions of the file system b. All of the above are possible c. Add remote storage to be accessed over network d. Mount and unmount specific partitions e. Establish disk quotas
All of the above are possible
It is the user who initiates when and what a computer should do.
true
Which of the following forms of scheduling will cause processes to wait the minimum amount of time? a. Round robin b. First come first serve c. Shortest job first d. Priority e. Longest job first
Shortest job first
Which of the following forms of process management did MS-DOS use? a. Multitasking b. Single tasking c. Double tasking d. Batch e. Multiprogramming
Single tasking
If two processes are deadlocked, what is your best move to free them from deadlock? a. Reboot all of the resources b. Reboot the computer c. Kill all of the processes d. Kill one of the processes e. Wait until the deadlock resolves itself, which should only take a few seconds
Kill one of those processes
An IT person in general would not be expected to handle which of the following tasks? a. Make recommendations on computer purchases b. Be on call 24/7 c. All of the above are tasks that an IT person might be asked to perform. d. Train other employees e. Monitor employees' files and web browsing behavior to ensure compliance with organizational IT policies
Monitor employees' files and web browsing behavior to ensure compliance with organizational IT policies
Which of the following forms of processing does not provide any form of interaction with the user but instead requires I/O be handled before/after program execution? a. Multithreading b. Multiprogramming c. Multitasking d. Batch e. Single tasking
Multiprogramming
Which form of processing would run one process at a time, but when that process requires I/O, the CPU would switch temporarily to another process? a. Multiprogramming b. Multiprocessing c. Multitasking d. Multithreading e. Single tasking
Multitasking
Which of the following could be called a peripheral device? a. Power supply unit b. Printer c. CPU d. Memory chips e. Memory
Printer
The use of permissions to control who can and who cannot access resources is part of which of these operating system roles? a. Security b. Protection c. Process management d. Resource management e. Memory management
Protection
Which of the following skills would an IT person employ to find and fix a problem with the operating system? a. System security b. Hardware troubleshooting c. System level programming d. System troubleshooting e. Soft skills
System troubleshooting
Which of the following is true in (competitive) multitasking? a. The CPU switches between processes at the user's request b. The CPU switches between processes very quickly c. The CPU switches between processes only occasionally d. The CPU switches between processes only when a process needs I/O e. None of the above: the CPU does not switch between processes during multitasking
The CPU switches between processes at the user's request.
An IT person would probably be expected to study each of the following topics except for... a. ... networking b. ... programming c. ... ethics d. ... operating systems e. The IT person would be expected to study them all.
The IT person would be expected to study them all.
Detecting that a computer is running slowly because of a computer virus infection would be an example of which type of IT skill? a. Troubleshooting b. System security c. Software installation d. Knowledge of operating systems e. System-level programming
Troubleshooting
In DOS, which of the following symbols is used to denote a directory in a path? a. \ b. .. c. ~ d. / e. C:
\
The process of swapping is triggered under which circumstance? a. a process resumes from waiting for I/O b. a page fault c. an interrupt d. a context switch e. a cache miss
a page fault
In Linux, a soft link is called ... a. None of the above: Linux does not have soft links, it only has hard links b. an alias c. a pointer d. a shortcut icon e. a symbolic link
a symbolic link
During a context switch, what is being switched? a. one process' priority for another b. one process' pages for another c. one process' register values for another d. one process' data for another e. all of the above
all of the above
Concurrent processing means that the operating system executes processes in an overlapped fashion, which of the following is not a form of concurrent processing? a. All of the above are forms of concurrent processing b. multiprogramming c. batch processing d. multiprocessing e. multitasking
batch processing
The concept of translating a program from a more readable language like Python or Java into the computer's native machine language is called... a. ... compilation b. ... input c. ... assembly d. ... storage e. ... processing
compilation
A smart phone should be considered a computer.
false
A virtual machine is hardware.
false
Cooperative multitasking and competitive multitasking are the same thing.
false
In Linux, every top-level directory is located in its own partition whereas in Windows, all of the top-level directories are on the same partition.
false
In both Windows and Linux, partitions are denoted by using different letters as in C: and D:
false
Most people who work in IT have 4-year IT degrees.
false
Organizations typically only have only one system administrator who will be responsible for all aspects of administering the computer systems.
false
The GUI is both easier to use and provides the user with greater flexibility in issuing instructions while the command line provides the user with the opportunity to write more detailed commands and so is more powerful.
false
The only difference between a handheld unit such as a tablet device or a smart phone differs from a laptop or desktop computer is that the laptop/desktop has full sized peripheral devices and the handheld unit uses touch screens.
false
The system administrator of a company would not be responsible for installing software on individual employee's computers.
false
We view the file system from a physical perspective while the operating system manipulates it from a logical perspective.
false
Web developers and web administrators share most the same tasks.
false
You can store a number between 0 and 255 in 1 bit.
false
Where is swap space located? a. SRAM b. DRAM c. flash drive d. CPU e. hard disk
hard disk
Which of the following Linux commands is like the DOS command dir? a. car b. mv c. dir d. ls e. rm
ls
In order to determine which directory you are currently in, which commands would you use respectively in Windows and Linux? a. ls in Windows and pwd in Linux b. pwd in Windows and nothing in Linux (it is part of the user prompt) c. pwd in both d. nothing in Windows (it is part of the user prompt), and pwd in Linux e. where in Windows and pwd in Linux
nothing in Windows (it is part of the user prompt), and pwd in Linux
Which of these hardware devices can force the processer to move from one process to another in multitasking? a. ready queue b. timer c. status flags d. program counter e. stack pointer
program counter
What does an interrupt interrupt? a. the CPU during its fetch-execute cycle b. any type of storage or input/output operation c. the operating system d. a memory access e. It could interrupt any of the above
the CPU during its fetch-execute cycle
Which portion of the operating system can be personalized by the user. a. the kernel b. the shell c. None of the above: the user is unable to personalize any part of the operating system d. the device drivers e. system utilities
the shell
The surface of a hard disk is broken into which types of regions? a. tracks and sectors b. blocks (only) c. blocks and partitions d. sectors and blocks e. tracks and segments
tracks and sectors
A hard link in a file system points at the file while a soft link points at a file's directory entry.
true
Although an IT student may not learn a variety of programming languages, it is likely that the IT student will learn to program.
true
As computer technology has improved and thus become more complex, the ability to use the computer has been made easier.
true
Disk access time is slower than memory access time.
true
If a device performs the IPOS cycle, we should consider it to be a computer no matter what the device is.
true
In Linux, you have one inode for every file and directory in your file system.
true
In a batch processing system, the operating system would have to schedule the next process to execute.
true
