101. Memory that loses its contents when power is lost is:
- a) Static
- b) Random
- c) Non-volatile
- d) Volatile
Answer: D - Volatile memory (like RAM) loses its contents when power is removed. Non-volatile memory retains data (ROM, SSD).
102. On the PC side, the printer port is a:
- a) 25 pin female serial connector
- b) 15 pin female parallel connector
- c) 25 pin female parallel connector
- d) 15 pin female serial connector
Answer: C - The printer port (parallel port) is a 25-pin female DB-25 connector used for parallel communication.
103. RAM connected_______
- a) PCI Slot
- b) PCI Express Slot
- c) AGP Slot
- d) DIMM Slot
Answer: D - RAM modules are connected to DIMM (Dual In-line Memory Module) slots on the motherboard.
104. SMPS is a_______
- a) SYSTEM UNIT
- b) POWER UNIT
- c) BOTH
- d) None of this
Answer: B - SMPS (Switched Mode Power Supply) is a POWER UNIT that converts AC to DC for computer components.
105. Software removes from_______
- a) Delete folder
- b) Add or Remove Program
- c) Start Menu
- d) Regedit
Answer: B - Software is properly removed using "Add or Remove Programs" (or Programs and Features) in Windows Control Panel.
106. SMPS frequency are_______
- a) 15625 Hz
- b) 15625 Khz
- c) 15625 Mhz
- d) 15625 Ghz
Answer: A - SMPS switching frequency is typically around 15,625 Hz (15.625 kHz) for standard power supplies.
107. SATA port used in_______
- a) Scanner
- b) Printer
- c) Mother board
- d) None of this
Answer: C - SATA (Serial ATA) ports are used on motherboards to connect storage devices like hard drives and SSDs.
108. LGA is a_______
- a) RAM SLOT
- b) CPU SOCKET
- c) GRAPHICS CARD SLOT
- d) None of this
Answer: B - LGA (Land Grid Array) is a type of CPU socket where pins are on the socket, not the processor.
109. PS/2 Port used in_______
- a) Mother Board
- b) Monitor
- c) BOTH
- d) None of this
Answer: A - PS/2 ports (for keyboard and mouse) are located on the motherboard's I/O panel.
110. AC current frequency is_______
- a) Whatt
- b) kilo what
- c) Hz
- d) MHz
Answer: C - AC current frequency is measured in Hertz (Hz). In India, it is 50 Hz; in US, it is 60 Hz.
111. Flip Flop is a part of Digital Electronics_______
- a) TRUE
- b) FALSE
- c) N.A.
- d) N.A.
Answer: A - TRUE. Flip-flop is a fundamental building block of digital electronics used for storing binary data (memory element).
112. A simple flip-flop_______
- a) Is 2 bit memory
- b) Is 1 bit memory
- c) Is a four state device
- d) Has nothing to do with memory
Answer: B - A simple flip-flop is a 1-bit memory element that can store either a 0 or a 1.
113. Hz means_______
- a) Herzed
- b) Haze
- c) Huze
- d) N.A.
Answer: A - Hz stands for Hertz (Herzed), the unit of frequency named after German physicist Heinrich Hertz.
114. NAND is a Universal gate_______
- a) TRUE
- b) FALSE
- c) N.A.
- d) N.A.
Answer: A - TRUE. NAND and NOR are universal gates because any Boolean function can be implemented using only these gates.
115. Emitter Base Collector used in_______
- a) Capacitor
- b) Diode
- c) Transistor
- d) None of this
Answer: C - Emitter, Base, and Collector are the three terminals of a Bipolar Junction Transistor (BJT).