The process of one thread waiting for another thread to finish its execution is known as ___________.

  • Blocking
  • Suspension
  • Synchronization
  • Threading
When one thread waits for another to complete its execution, it's termed synchronization. This can involve mechanisms like joining threads or using synchronization primitives like mutexes or semaphores. Suspension refers to temporarily halting a thread's execution, threading is a general term for working with threads, and blocking describes a state where a thread is waiting for an event or resource to become available.

You're developing a scheduling algorithm for a project with time constraints. How would you apply dynamic programming to optimize the schedule?

  • Apply a random search algorithm to explore different scheduling options and select the one with the lowest total duration.
  • Implement a greedy algorithm that prioritizes tasks based on their deadlines and durations to optimize the schedule.
  • Use a brute-force approach to generate all possible schedules and select the one with the least number of conflicts.
  • Utilize dynamic programming to break down the scheduling problem into smaller subproblems and store the solutions to these subproblems in a table for efficient retrieval and reuse.
Dynamic programming involves breaking down a complex problem into smaller subproblems, solving each subproblem only once, and storing the solutions to avoid redundant computations. In scheduling, this can be applied by defining the optimal schedule for smaller time intervals and then combining them to obtain the overall optimal schedule. It optimizes the schedule by considering dependencies, resource availability, and time constraints effectively.

The ________ layer of the OSI Model is concerned with establishing, maintaining, and terminating sessions between devices.

  • Data Link
  • Network
  • Session
  • Transport
The Session layer manages session establishment, maintenance, and termination to enable communication between devices in a network.

What is the time complexity of the binary search algorithm?

  • O(1)
  • O(log n)
  • O(n log n)
  • O(n)
The time complexity of the binary search algorithm is O(log n), where n is the number of elements in the sorted array. This efficiency is due to the algorithm halving the search space in each step.

Which wireless technology is commonly used for short-range communication between devices, such as smartphones and smartwatches?

  • Bluetooth
  • LTE
  • NFC
  • Zigbee
Bluetooth is the wireless technology commonly used for short-range communication between devices like smartphones and smartwatches. It operates on the 2.4 GHz frequency band and is known for its low power consumption.

The ___________ time is the maximum amount of time a process can execute before being interrupted in preemptive scheduling.

  • Arrival
  • Burst
  • Quantum
  • Response
The quantum time, also known as time slice or time quantum, is the maximum amount of time a process can execute before being interrupted in preemptive scheduling algorithms like Round Robin. It defines the length of each time slot during which a process can run before the scheduler switches to another process.

The method used by wireless access points to allocate available bandwidth among connected devices is called _________.

  • Beamforming
  • Channel Allocation
  • Frequency Hopping
  • Spectrum Sharing
Spectrum sharing is the method used by wireless access points to allocate available bandwidth among connected devices. This technique ensures efficient use of the available frequency spectrum by dynamically assigning frequencies to different devices based on their needs and the current network conditions. Channel allocation refers to the process of assigning specific frequency channels to devices for communication, which is related but not as dynamic as spectrum sharing. Frequency hopping is a technique where a device switches frequencies during transmission to avoid interference, but it's not the same as overall bandwidth allocation. Beamforming is a technology that focuses wireless signals towards specific devices, improving signal strength and quality but is not directly related to bandwidth allocation.

The "D" in ACID properties ensures that committed transactions are ___________.

  • Decisive
  • Developed
  • Durable
  • Dynamic
The "D" in ACID stands for Durability. This property ensures that once a transaction is committed, it remains permanently stored in the system, even in the event of power failures or system crashes, guaranteeing data persistence and reliability.

When would you choose the Strategy design pattern over the State design pattern?

  • When an object's behavior changes based on internal state
  • When behavior changes based on state and transitions are simple
  • When behavior needs to vary independently of its context
  • When there are multiple behaviors and transitions between them
The Strategy design pattern is chosen when different algorithms or behaviors need to be selected at runtime independently of the context. In contrast, the State pattern is used when an object's behavior changes based on internal state changes. Understanding the nature of behavior variation and the complexity of state transitions helps in selecting the appropriate pattern.

In a distributed system, processes communicate over the network and may encounter deadlocks. How would you design a deadlock detection and recovery mechanism for such a system?

  • Design a distributed lock manager to coordinate access
  • Implement a distributed deadlock detection algorithm
  • Use a timeout mechanism to detect potential deadlocks
  • Utilize a distributed consensus protocol like Paxos
Implementing a distributed deadlock detection algorithm enables processes in a distributed system to detect potential deadlocks by exchanging information about their resource allocations. This approach helps in identifying circular wait conditions and allows for recovery strategies such as resource preemption or requesting additional resources to break the deadlock and restore system functionality.