Notes for BSc CSIT

 Multiple-Choice Questions on Microprocessors and Computer Architecture Microprocessor and Bus System of Microprocessor Based System What is the primary function of the address bus in a microprocessor-based system? a) Transfers data between CPU and memory b) Specifies memory or I/O device locations c) Controls the timing of operations d) Carries power to peripherals Answer: b) Specifies memory or I/O device locations Explanation: The address bus carries the memory address or I/O port number to identify the location for data transfer. Which bus in a microprocessor system is bidirectional? a) Address bus b) Data bus c) Control bus d) System bus Answer: b) Data bus Explanation: The data bus is bidirectional, allowing data to be transferred to and from the CPU, memory, or I/O devices. Intel 8085 Microprocessor Architecture, Programming, and Interfacing How many general-purpose registers are available in the Intel 8085 microprocessor? a) 4 b) 6 c) 8 d) 10 Answer: b) 6 Explanation: The 8...

  Multiple-Choice Questions on Computer Networks and Security Computer Networks, Types of Networks, and Applications Which of the following is NOT a type of computer network? a) LAN b) WAN c) SAN d) MAN Answer : c) SAN Explanation : SAN (Storage Area Network) is a specialized network for data storage, not a general-purpose computer network like LAN, WAN, or MAN. What is a primary application of a Personal Area Network (PAN)? a) Connecting devices in a single office b) Facilitating short-range wireless communication between personal devices c) Supporting enterprise-wide data storage d) Connecting multiple cities Answer : b) Facilitating short-range wireless communication between personal devices Explanation : PANs, such as Bluetooth networks, are used for short-range communication between devices like smartphones and headsets. Layered Network Architecture, OSI and TCP/IP Model How many layers are there in the OSI model? a) 5 b) 6 c) 7 d) 8 Answer : c) 7 Explanation : The OSI model c...