Practice Basics of Computers Questions and Answers

• Which of the following testing types is best suited for verifying whether individual units of source code work as intended?
• Which SOLID principle emphasizes that a class should have only one reason to change, promoting single responsibility?
• Which design pattern would you use if you need to ensure that a class has only one instance, with a global point of access to that instance?
• In Black Box Testing, which of the following is the primary focus?
• Which SQL command is used to delete all data from a table but retain the structure for future use?
• Which of the following web application attacks involves tricking a user into executing unwanted actions on a web application where they are authenticated?
• Which tree traversal strategy explores all the children of a node before moving on to the next level?
• Which of the following best describes the role of digital signatures in ensuring security in digital communications?
• Which CPU scheduling algorithm minimizes the average waiting time, assuming all processes arrive at the same time?
• In the context of memory management, which of the following is a key characteristic of the paging technique?
• Which page replacement algorithm results in the lowest page-fault rate for any reference string, but is often impractical to implement?
• Which I/O scheduling algorithm can potentially lead to starvation of certain I/O requests, particularly those located far from the current head position?
• Which of the following best describes the primary advantage of using a hypervisor in managing virtual machines?
• Which storage solution provides the fastest data access speeds?
• What is the primary purpose of cache memory in computer architecture?
• Which of the following networking devices is primarily used to connect different networks and route packets between them?
• What impact does increasing the clock speed of a processor typically have?
• What is the primary purpose of implementing a 3-2-1 backup strategy?
• Which of the following is the most effective method for ensuring compliance with data protection regulations?
• What is the main advantage of using incremental backups over full backups?
• Which of the following is a critical component of a data protection policy that supports regulatory compliance?
• Which of the following strategies best ensures the integrity of backups?
• Which file system is commonly used by modern Windows operating systems?
• Which command in Windows is used to display the IP configuration of a computer?
• Which topology offers the highest fault tolerance and redundancy?
• In the OSI model, which layer is responsible for the establishment, maintenance, and termination of communication sessions?
• Which of the following is a primary advantage of IPv6 over IPv4?
• What is the primary function of Network Address Translation (NAT)?
• Which of the following protocols is used for remotely managing network devices?
• Which of the following is a primary function of a firewall?
• What type of firewall inspects packets and determines whether they are allowed based on pre-established rules?
• Which of the following is the primary purpose of access control in network security?
• Which of the following is a primary advantage of using a private cloud?
• Which of the following best describes containerization in cloud computing?
• What is the primary difference between full virtualization and para-virtualization?
• Which of the following statements best describes the key difference between virtual machines (VMs) and containers?
• Which of the following best describes the purpose of Continuous Integration (CI) in the CI/CD pipeline?
• What is the main benefit of implementing Continuous Delivery (CD) in software development?
• Which of the following protocols is primarily responsible for sending and receiving email messages?
• Which of the following best describes a MAN (Metropolitan Area Network)?