💻 Computing Solved MCQs with Answers

Practice 1954 approved 💻 Computing questions with verified answers from the 💾 Computer Science subject for Pakistan exams.

1954 solved MCQs

If a load resistance is 1 kW, a stiff current source has a resistance ofAnswer: More than 100 k Ohm A flashlight battery has internal resistance of 1W. For what values of load resistance does the flashlight battery appear stiff?Answer: 100 Ohm or more The number of free electrons and holes in intrinsic semiconductor increases when the temperatureAnswer: Increases The number of free electrons and holes in intrinsic semiconductor increases when the temperatureAnswer: Increases Which one of the following statements is true for current flowing in a parallel circuit?Answer: The amount of current flow through each branch of a parallel circuit can be different, depending on the resistance of each branch part and the amount of voltage applied to it Holes are the minority carriers in which type of semiconductor?Answer: n-type Doubling the number of turns of wire in an inductor:Answer: multiplies the value of inductance by four A farad is defined as the amount of capacitance necessary for:Answer: changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing What is the capacitive reactance of a 0.1 micro F capacitor that is operating at 1000 Hz?Answer: 1590 Ohm A certain power transformer has a turns ratio of 5. What voltage can you expect at the secondary winding when you apply 120 V to the primary winding?Answer: 24 V Which one of the following statements is true for the currents in a parallel RC circuit?Answer: The total current is equal to the sum of the currents for the resistance and capacitance Which one of the following statements is true for current flowing in a series circuit?Answer: The same current flows through every part of a series circuit The total inductance of a series inductor circuit is:Answer: equal to the sum of the individual inductance values When the graph of current versus voltage is a straight line, the device is referred to asAnswer: Linear How do you configure a printing pool?Answer: Associate multiple print devices with one printer In heavily overloaded networks, crossÂ¬bar switching offers better performance than cell-backplane switchingAnswer: False You want to connect 2 networks that are both lOBaseT Ethernet networks. The 2 networks are located in separate buildings so that they are approximately 1,000 meters apart. Which media should you use?Answer: fiber-optic cable You install Windows NT Server on a computer, making the computer a backup domain controller in an existing domain. After installation, you discover that you used the wrong domain name. What should you do?Answer: Reinstall Windows NT Server In your company, 2 Ethernet Networks are connected with a router. All network connections run TCP/IP. Your new client computer can access only the computers on your side of the router. All other computers are able to access one another. What is the most likely cause of the problem?Answer: incorrect subnet mask on your client computer From your client computer, you are able to access several servers on your 10Base2 Ethernet network. However, you are NOT able to access a server names RED. Other client computers are able to access RED. What is the most likely cause of the problem?Answer: There is a protocol mismatch between your client computer and RED. Most routers can also act as bridgesAnswer: True Windows Naming Service (WINS)Answer: resolves computer names to IP addresses What must you do to create a printer pool containing four shared printers on your Windows NT Server computer?Answer: Specify the same printer driver and settings for all printers Assume, you are the administrator of the TUNA domain. You need to allow Lisa from the BASS domain to administrate the TUNA domain while you are on vacation. A one-way trust relationship has been set up so that TUNA trusts BASS. Which group assignments would accomplish your needs?Answer: Create a global group in BASS called Gbl-Admins that contains the Lisa user account. Add the BASS\Gbl-Admins group to the local Administrators group in TUNA Which of the following statements about a local group account created by User Manager for Domains is true?Answer: The account cannot be used in trusting domains Peter uses a Microsoft Windows 95 computer. What should he do to be able to administer domain user accounts from his computer?Answer: install the Client-based Network Administration Tools on his computer You are setting up a network in a school. You need to network 5 computers for the file and printer sharing. You want to use some donated cable and Ethernet adapters. You identify the donated adapters as ARCnet coaxial network adapters and 10Base2 Ethernet network adapters. You install an Ethernet adapter in each of the 5 computers and connect the donated cable. The computers are NOT able to maintain reliable communication. You suspect that you are NOT using the correct type of coaxial cable. Which type of coaxial cable should you be using?Answer: RG-58 AU The rating in bits per second for UTP Cat 5 wiring isAnswer: 100 Mbps In building cabling, horizontal wiring from the telecommunications closet (TC) to the wall outlet has a distance limitation ofAnswer: 90 meters You are installing a network interface card on a computer with the following configuration: a 5867133 CPU, 16MB or RAM, a 800-MB IDE hard disk, a parallel port configured as LPT1, and a serial port configured as COM1, which is currently used by a mouse. In addition to the IDE host adapter and the video card, the following devices have been installed on the computer's expansion bus: a modem on COM2, a SCSI host adapter for a CD-ROM drive, and a sound card. The SCSI hose adapter is using IRQ 5, and the sound card is using IRQ 11. The network interface card that you are installing supports the following choices for IRQ: 2, 3, 4, 5, 9,10 and 11. Which IRQ(s) could you use for the network interface card without creating an IRQ conflict with another device?Answer: 10