Introduction to Computing MCQs with Answers
Practice important Introduction to Computing MCQs with answers and explanations.
Chapter: 56
Q801:
What is the main goal of deadlock avoidance schemes?
A. To prevent deadlock by addressing one or more of the three conditions
B. To correct deadlock after it has occurred
C. To increase system performance
D. To allocate resources efficiently
Correct Answer:
A
Chapter: 57
Q802:
What is the primary task of operating systems in terms of security?
A. Protect computer resources from unauthorized access
B. Manage hardware resources
C. Optimize system performance
D. Handle network communications
Correct Answer:
A
Chapter: 57
Q803:
What does an account in an operating system typically contain?
A. User name, password, and privileges
B. System hardware information and settings
C. Network configuration details
D. Backup and recovery information
Correct Answer:
A
Chapter: 57
Q804:
Who is responsible for establishing user accounts and maintaining system settings in an operating system?
A. The super user or administrator
B. The general user
C. The software developer
D. The operating system itself
Correct Answer:
A
Chapter: 57
Q805:
What role does auditing software play in computer security?
A. Records and analyzes system activities to detect unauthorized behavior
B. Optimizes system performance
C. Installs software updates
D. Monitors network traffic
Correct Answer:
A
Chapter: 57
Q806:
What might a flood of incorrect login attempts indicate according to auditing software?
A. An unauthorized user attempting to gain access
B. Normal user activity
C. A system performance issue
D. A hardware malfunction
Correct Answer:
A
Chapter: 57
Q807:
How can auditing software detect unauthorized access within a user’s account?
A. By identifying activities that do not match the user's past behavior
B. By checking the system's network traffic
C. By analyzing the system’s hardware performance
D. By monitoring software updates
Correct Answer:
A
Chapter: 57
Q808:
What type of software records activities and reports them to an intruder?
A. Sniffing software
B. Antivirus software
C. Firewall software
D. System optimization software
Correct Answer:
A
Chapter: 57
Q809:
What is an example of a program that can trick users into revealing their passwords?
A. A program simulating the login procedure
B. An antivirus program
C. A system performance optimizer
D. A software update installer
Correct Answer:
A
Chapter: 57
Q810:
What common user behavior can compromise computer security?
A. Selecting easily guessable passwords and sharing them with others
B. Installing updates regularly
C. Using complex passwords and changing them frequently
D. Backing up data regularly
Correct Answer:
A
Chapter: 57
Q811:
Why is it important to change passwords on a timely basis?
A. To prevent unauthorized access due to compromised passwords
B. To improve system performance
C. To update system settings
D. To ensure compatibility with new software
Correct Answer:
A
Chapter: 57
Q812:
What do institutions with large computer installations typically adopt to address security issues?
A. Policies that catalog user requirements and responsibilities
B. Additional hardware resources
C. Advanced encryption algorithms
D. Extra system performance monitoring tools
Correct Answer:
A
Chapter: 57
Q813:
What is a key responsibility of the super user or administrator beyond managing accounts?
A. Monitoring system activity to detect potential security threats
B. Installing all user applications
C. Performing daily system backups
D. Upgrading hardware components
Correct Answer:
A
Chapter: 58
Q814:
What is typically the first step an intruder takes after gaining access to a computer system?
A. Exploring for information or inserting destructive software
B. Changing the system's settings
C. Destroying system files
D. Modifying hardware components
Correct Answer:
A
Chapter: 58
Q815:
Why is the administrator’s password closely guarded?
A. Because the administrator has the highest level of access and can alter critical settings
B. To prevent unauthorized software installations
C. To ensure system updates are applied
D. To monitor user activities
Correct Answer:
A
Chapter: 58
Q816:
How might an intruder attempt to trick the operating system through a general user’s account?
A. By accessing memory cells outside the allotted area or retrieving denied files
B. By changing the system’s hardware configuration
C. By creating new user accounts
D. By installing unauthorized software
Correct Answer:
A
Chapter: 58
Q817:
What role do special-purpose registers play in CPU security?
A. They store the upper and lower memory limits for a process to prevent unauthorized access
B. They manage network connections
C. They control system performance
D. They handle user authentication
Correct Answer:
A
Chapter: 58
Q818:
What happens if a process tries to access memory outside its designated area?
A. The CPU performs an interrupt sequence and transfers control to the operating system
B. A hardware error occurs
C. The system crashes
D. The process is terminated without further action
Correct Answer:
A
Chapter: 58
Q819:
What is the purpose of privileged mode in a CPU?
A. To allow the CPU to execute all instructions, including those that change system settings
B. To limit the instructions that can be executed
C. To enhance system performance
D. To manage network traffic
Correct Answer:
A
Chapter: 58
Q820:
What is a privileged instruction?
A. An instruction that can only be executed in privileged mode and typically involves critical system operations
B. A normal instruction executed in non-privileged mode
C. A user-level command
D. A network operation instruction
Correct Answer:
A