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30 Cards in this Set
- Front
- Back
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You have been asked by a customer to install an additional hard drive in an older AT-style computer that has only one IDE controller. The system already has a hard drive and a CD-ROM drive installed. How can you handle the request?
A) Add a SCSI controller to the system. B) Install a new IDE cable with an additional connector on it. C) Connect the hard drive to the B: floppy disk drive connector. D) Install an IDE host adapter card in the system. |
D) Install an IDE host adapter card in the system.
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What item in a system's CMOS settings can prevent you from upgrading the operating system software?
A) The hard disk drive Type setting B) The USB Enable setting C) The Virus Warning function D) The Auto-Detect hard drive setting |
C) The Virus Warning function
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What type of device would you expect to find in an AGP slot?
A) Video display adapter B) Modem card C) Local area network card D) Sound card |
A) Video display adapter
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When disposing of a CRT, you should first _____.
A) pack it in its original container B) discharge the HV anode C) check applicable local ordinances D) smash the CRT's glass envelope with a hammer |
C) check applicable local ordinances
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Your system will not boot to the hard drive, so you try to start it with a boot disk in the A: drive. However, the system still refuses to boot up. What should you do next?
A) Change the Boot Sequence setting in the CMOS Setup utility to check the A: drive first. B) Replace the floppy drive and the signal cable, and then restart the system. C) Replace the hard drive and the signal cable, and then reinstall the operating system and applications. D) Replace the boot disk with a working disk. |
A) Change the Boot Sequence setting in the CMOS Setup utility to check the A: drive first.
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You should not wear a wrist grounding strap when _____.
A) repairing a CRT B) replacing an adapter card C) repairing a motherboard D) adding or replacing RAM |
A) repairing a CRT
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IRQ7 is generally assigned to _______.
A) COM1 B) COM2 C) LPT1 D) LPT2 |
C) LPT1
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What type of cable is used in a 100Base-TX system?
A) Cat 4 STP B) Cat 5 UTP C) Cat 6 STP D) Cat 3 UTP |
B) Cat 5 UTP
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The maximum length of a 10Base-2 Ethernet network segment is ______.
A) 15m B) 185m C) 520m D) 1,050m |
B) 185m
Explanation: The 10Base-2 specification is a misuse of the naming methodology because such a LAN cannot be 200m long (although 185m is close to 200m). The extra distance may compensate for the equipment links that must be used at the end of the network to connect to the user. |
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The purpose of the rechargeable battery on a system board is _____.
A) to back up the contents of RAM memory, in case of a power fluctuation B) to keep the microprocessor's registers alive, in case of a power fluctuation C) to maintain the contents of CMOS RAM, in case of a power fluctuation D) to maintain the system's time-of-day chip, in the event of a power fluctuation |
C) to maintain the contents of CMOS RAM, in case of a power fluctuation
Explanation: The system board uses the rechargeable battery to maintain power to the system's CMOS RAM area. This area has been used to hold the system's configuration information since the early days of the 80286 AT systems. Because this area is actually RAM, even a short loss of power results in the loss of the configuration information. |
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An RJ-45 connector is most commonly used with ________.
A) disk drive units B) fiber-optic cable C) coaxial cable D) unshielded twisted-pair cable |
D) unshielded twisted-pair cable
Explanation: The RJ-45 registered jack is the connector specified for use with UTP cable. Coaxial cable uses BNC connectors, and fiber cable uses ST connectors. |
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Cache memory is used to ________.
A) increase the speed of data accesses B) increase the amount of memory that is available to programs C) store data in nonvolatile memory D) augment the memory that is used for the operating system kernel |
A) increase the speed of data accesses
Explanation: Cache memory of any type - and there are several applications for caching - is used to speed up a system's access to data. It is volatile memory, and it always operates in parallel with some other memory type (for instance, RAM or disk memory). |
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Which function can be performed by a Type III PCMCIA card, but not by Type I or Type II cards?
A) Removable HDD functions B) Memory expansion functions C) Serial port functions D) Parallel port functions |
A) Removable HDD functions
Explanation: The Type III PCMCIA specification was designed specifically to enable PC cards to handle removable disk drive systems. Of course, this specification remains compatible with the memory usage specification for Type I and the general I/O functions of Type II cards. |
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The Pentium MMX CPU can fit into which of the following sockets?
A) Socket 8 B) Socket A C) Socket 370 D) Super Socket 7 |
D) Super Socket 7
Explanation: The Super Socket 7 PPGA socket is a derivation of the Socket 7 specification, with the addition of support for a 100MHz front-side bus specification. |
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Which of the following command-line functions can be used to restore a corrupted boot record to a Windows 9x hard disk drive?
A) RESTORE /C: B) MAKEBOOT C: C) RECOVER /MB D) FDISK /MBR |
D) FDISK /MBR
Explanation: From the boot disk containing a copy of the FDISK utility, you can run the FDISK program with the /MBR switch to replace the master boot record on a hard disk. This should be followed by using the SYS C: command to copy the system files over to the drive. Be aware that the IO.SYS, MS.SYS, and COMMAND.COM files are different for Windows 9x and MS-DOS, so using different operating system versions on an existing installation should not be done unless absolutely necessary. |
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The recommended maximum length of a Centronics parallel connection is _________.
A) 10 feet (3m) B) 25 feet (8.5m) C) 50 feet (15m) D) 100 feet (33m) |
A) 10 feet (3m)
Explanation: The stated maximum length of a Centronics parallel printer cable is 10 feet (3m). Some manufacturers call for a maximum of 6 feet (2m) in their documentation. These distances should be taken seriously. |
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Serial ports transmit data _____.
A) 1 bit at a time B) 1 byte at a time C) when a clock pulse is applied to them D) in one direction only |
A) 1 bit at a time
Explanation: Serial ports pass data back and forth as a string of single bits. The UARTs in serial ports enable the ports to both transmit and receive data. In asynchronous mode, the timing of the data through a port is controlled by start and stop bits placed at the beginning and end of each character. |
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Where is WRAM used in a PC system?
A) System RAM B) Video RAM C) Cache RAM D) Flash RAM |
B) Video RAM
Explanation: Windows RAM or WRAM is designed specifically for use as video memory. It is a special version of VRAM that has been optimized to transfer blocks of video data at a time. This enables WRAM to operate at speeds of up to 150% the speeds of typical VRAM devices. |
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When replacing the fuser assembly in a laser printer, you should be careful because _____.
A) it has sharp edges B) it may leak toner C) it may be hot D) it may be broken |
C) it may be hot
Explanation: The fuser assembly in a laser printer is a burn hazard. It is one of the three types of hazards present in laser printers: burn, vision damage, and electric shock. |
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________ transmissions are conducted at irregular intervals, using start and stop bits.
A) Serial B) Parallel C) Synchronous D) Asynchronous |
D) Asynchronous
Explanation: Asynchronous (that is, without timing) transmissions are conducted at irregular intervals. They use start and stop bits to define the data character sandwiched between them. |
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ESD can especially become a problem in conditions that are _____.
A) hot and dry B) cool and dry C) hot and humid D) cool and humid |
A) hot and dry
Explanation: ESD tends to form when conditions are hot and dry. These conditions provide the low humidity that ESD requires in order to form. |
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IRQ4 is normally assigned to ______.
A) COM1 B) COM2 C) LPT1 D) LPT2 |
A) COM1
Explanation: In a PC-compatible system, IRQ4 is generally assigned to the COM1 serial port. The COM2 port is assigned IRQ3. For these two ports, it might be easy to remember that there is an even/odd reversal between the IRQ and COM values. |
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Which I/O connections in an ATX system can be confusing?
A) The COM1 and COM2 serial ports B) The mouse and keyboard ports C) The VGA video and game ports D) The modem and LAN ports |
B) The mouse and keyboard ports
Explanation: Because the ATX specification uses 6-pin PS/2 mini-DIN connectors for both the keyboard and mouse connections, it is very easy to confuse the two when installing the system's peripherals. This is a particularly interesting choice of connectors considering past connectivity choices (such as video and COM port connections) that have been confusing to users and technicians. |
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How many logical drives can be created by using Microsoft operating systems?
A) 8 B) 23 C) 38 D) 44 |
B) 23
Explanation: The drive can be partitioned into a primary partition and an extended partition. The extended partition can be subdivided into 23 logical drives (labeled D through Z). |
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A USB device can be located a maximum distance of ______ from the host.
A) 10 feet (3m) B) 16 feet (5m) C) 22 feet (7m) D) 30 feet (10m) |
B) 16 feet (5m)
Explanation: The limit of the USB 1.1 connection is 16 feet (5m) without additional equipment.. |
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A customer calls, saying he has a CD stuck in a nonfunctioning drive and wants to know how to get it out. What do you tell the customer?
A) Remove the top of the drive housing from the drive unit. B) Push a paper clip into the hole near the activity light. C) Use a small knife to pry the drawer open just enough to get the disc out. D) Apply 110-volt AC directly to the power-supply connections on the back of the drive to eject the disc. |
B) Push a paper clip into the hole near the activity light.
Explanation: Pushing a straightened paper clip into the small opening on the front panel of the drive mechanically releases the CD tray from the drive and lets it open. This is the only nondestructive way to remove a disc from a nonfunctioning CD-ROM drive. |
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If a functioning system fails to boot up after a new sound card is installed, what is the most likely cause of the problem?
A) The sound card is bad. B) The system board does not have enough RAM to accommodate the new card. C) An interrupt-level conflict exists between the sound card and some other device in the system. D) The sound card has a DMA conflict with another system device. |
C) An interrupt-level conflict exists between the sound card and some other device in the system.
Explanation: If the system refuses to boot up after a new option has been installed, it is a good guess that it has detected a conflict between the new device and one of the other system devices and that it wants you to get the conflict straightened out before it will go back to work. |
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What is the most likely condition indicated by light printout of a dot-matrix printer?
A) Printhead misalignment B) Worn platen C) Spent ribbon D) Incorrect printer setup |
C) Spent ribbon
Explanation: Light print produced by any type of printer typically indicates that the primary printing element is wearing out or running low. In the case of a dot-matrix printer, this is the ink ribbon. |
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A 72-pin memory module is known as a _____.
A) SIMM B) DIMM C) DRAM D) PRAM |
A) SIMM
Explanation: The 72-pin memory module is the larger-sized SIMM. The smaller, original module is a 30-pin version. DIMMs, on the other hand, are physically larger, physically different, and have 168 pins. |
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When using the ohmmeter function of a DMM to perform tests, you must always ______.
A) connect the meter in series with the device being tested B) connect the meter in parallel with the device being tested C) remove the device being tested from the circuit board D) open the circuit that contains the device being tested |
D) open the circuit that contains the device being tested
Explanation: The ohmmeter function uses an internal battery to control the environment being checked. Therefore, it is very important that power in the circuit being tested be removed. In addition, at least one end of the component being tested must be disconnected from the system. This prevents any of the control current from the battery from being directed away through other circuits to which the device may be connected, which would cause the reading taken to be inaccurate. |
