A+ (220-301) Test Questions

Quiz 11 Answers/Explanations
1. One of your accounts is using NT4 with a PDC and 8 NT4 workstations with Service pack 4 installed, with the possibility of an upgrade to Windows 2000 in the near future. One of the staff members often does some of the light administration work on the server. You get a call stating that a USB 2.0 scanner was purchased and appears to be inoperative with their network. Which of the following would be the most likely cause of the scanner failure, when considering that the scanner worked when taken out of the box?
Since they purchased USB 2.0 a BIOS upgrade would be in order for the operating system to see the new hardware.
USB 2.0 is not compatible with NT4 unless Service pack 6 is installed.
The NT4 operating system is not USB compatible.
Shut down the operating system, reboot and enable USB in the BIOS, after saving the changes reboot the computer and USB will be picked up as new hardware.
Answer/Explanation
  • The NT4 operating system is not USB compatible.
    2.We have become spoiled with long file names in 32 bit protected mode. But when we boot to Dos (Real mode) the following files would be truncated. Program files\test Program files\answers Program files\explanations Which of the following would be the correct truncation for these three files?
    Progra~1. Progra~2. Progra~3.
    Progra1.~ Progra2.~ Progra3.~
    Progra~.1 Progra~.2 Progra~.3
    Progra~1. Progra~2. Progra~3.
    Answer/Explanation
  • Progra~1. Progra~2. Progra~3.
    3. You have successfully completed the physical installation of an EIDE hard drive in a customers computer, and it is recognized in BIOS. He customer states on the work order that they want to have the drive partitioned with DOS installed on the first partition, at a size of 300MB. The remaining space will be used as an extended partition. You insert a bootable floppy with the fdisk program into the drive bay, POST is successful but you get a non system boot disk error. Which of the following would be the most probable cause.
    The newly installed hard drive is defective.
    The floppy with the fdisk program has the wrong version of command.com.
    The boot sequence in the CMOS settings is setup to boot to the CD-Rom, hard drive and then the floppy.
    The BIOS will not recognize EIDE hard drives.
    Answer/Explanation
  • BIOS needs to be reset to identify the boot sequence in the CMOS settings. (The question states bootable)
    If the CMOS settings did have the boot sequence to A first then the system files have been wasted (Unlikely)
    As for EIDE devices BIOS will recognize the device but may not recognize all of the drive space (over 528 MB)
    Having a different version of command.com and fdisk can cause a problem, but this is beyond the A+ test.
    4. You have a hard drive that is formatted with FAT 16 with Windows 95, and are about to install a newer hard drive at 4GB. You have the intention of installing the Windows 98 upgrade for the customer so that they may take full advantage of the USB capabilities and utilize FAT 32. Which of the following would be true when transitioning from FAT 16 to FAT 32?
    FAT 32 is incapable of working with hard drives that are smaller than 2GB, so this upgrade will require that the boot disk be FAT 16 and the secondary disk be FAT 32.
    FAT 16 utilizes a cluster size of 64 sectors, where as FAT 32 utilizes a cluster size of 32 sectors when working with drives that are 2GB.
    FAT 32 utilizes a cluster size of 32 sectors when working with hard drives that are greater in size than 2 GB, and FAT 16 uses a cluster size of 32 sectors.
    FAT 16 utilizes a cluster size of 32 sectors, where as FAT 32 utilizes a cluster size of 64 sectors when working with drives that are smaller than 2GB.
    Answer/Explanation

    Also XP will not recognize a hard drive above 32 GB with FAT32. The drive must be formatted with NTFS.
    NT4 can recognize a partition with FAT16.
    NT4 cannot recognize a FAT32 partition.
    NT4 cannot recognize a NTFS5 (W2K) partition unless Service pack 5 is installed on the NT4 machine.
    NT5 (W2K) can recognize any FAT partition and an NT4 NTFS partition.

    5. Which of the following statements would not hold true when working with SCSI cabling? Choose all that apply.? Choose 2
    When working with Single ended (SE) cabling a signal is sent over twisted pair, with one wire carrying voltage and the second wire going to ground.
    LVD (Low voltage differential) SCSI cabling enabled the use of lower voltage devices, has cable lengths of 25 meters for SCSI chains with 15 devices, and 12 meters with SCSI chains using 7 devices.
    HVD (High voltage differential) SCSI cabling uses 2 high voltages, one voltage is higher than the second, with the data signal being the difference between the two voltages.
    LVD (Low voltage differential) SCSI cabling enabled the use lower voltage devices, has cable lengths of 12 meters for SCSI chains with 15 devices, and 25 meters with SCSI chains using 7 devices.
    Error detection is provided.
    Answer/Explanation
  • With SE (Single Ended SCSI) the data signal is sent over twisted pair (One wire is for voltage and one wire is for ground). The oldest of the SCSI signaling techniques, and was quite susceptible to ‘noise’ in the line.
    Differential SCSI uses both wires to carry voltage. The difference in voltage between the two wires is data. Noise was greatly reduced, which is why we saw the significant increase from the 6 meter cable.
    LVD (Low voltage differential) SCSI cabling enabled the use lower voltage devices, has cable lengths of 25 meters for SCSI chains with 15 devices, and 12 meters with SCSI chains using 7 devices.
    6. Which of the following methods would best represent RAID 0?
    A minimum of 2 hard disks and 2 controllers.
    A minimum of 2 hard disks and 1 controller.
    A minimum of 3 hard disks with 1 controller.
    A minimum of 3 disks and 2 controllers.
    Answer/Explanation
  • A minimum of 2 hard disks and 1 controller.

    RAID 0 (Redundant array of inexpensive disks) uses a minimum of 2 hard drives, and 1 controller. It offers excellent read/write performance but does not offer any fault tolerance. It is not uncommon to find this built into many motherboards today at an average cost of approximately $130.
    Only RAID 1 (duplexing) is required to have 2 controllers and a minimum of 2 drives.
    Raid 1 (Mirroring) only requires 1 controller and a minimum of 2 drives.
    RAID 5 requires 1 controller and a minimum of 3 drives with a maximum of 32 drives.
    None of the RAID levels require 3 disks and 2 controllers.

    7. Which of the following statements are true when it comes to the Pentium Pro CPU?
    The Pentium Pro inserts into a 242 pin slot.
    The Pentium Pro inserts into a 423 pin socket.
    The Pentium Pro inserts into a 387 pin socket in a socket 8.
    The Pentium Pro inserts into a 387 pin socket in a socket 7.
    Answer/Explanation
  • The Pentium Pro inserts into a 387 pin socket in a socket 8.
    8. Plug and play compliant devices have the resources allocated by the operating system. Introduced with Windows 95 and has greatly improved ever since. Which of the following assign the SCSI ID to the device and not the host adapter.
    SCAM level I
    CAM
    ASPI
    SCAM level 2
    Answer/Explanation
  • SCAM (SCSI Access Method) is the SCSI Plug and Play.
    Level 1 SCAM compliant – SCSI devices and not the host are assigned an ID at startup.
    Level 2 SCAM compliant – SCSI devices and the Host are assigned an ID at startup.
    9. You have been hired at the XBN Corporation, where the network is comprised of a NT4 PDC (primary domain controller) running RAID 5 with SCSI 2. There are 30 WFW (Windows for workgroups) clients and 20 NT4 workstations. Which of the following would be used to resolve NetBIOS names to an IP address with the least administrative effort?
    DNS
    ARP
    WINS
    DHCP
    Answer/Explanation
  • A WINS server resolves computer names (NetBIOS names) to IP addresses. This is in a Microsoft only environment. It will not work with other machines on the network.
    DHCP (Dynamic Host configuration protocol) is used to dynamically assign addresses to hosts (PC's) on your network. If you have a dial up connection you would be able to see that when you dial up you are getting a different IP address virtually every time you go on line.
    ARP (Address resolution protocol) resolves IP addresses to a MAC addressesand operates at the Internet layer.
    DNS server resolves FQDN (Fully qualified domain names) to IP address. A FQDN requires a both a host name and a domain name.
    10. You have been contracted to set up a wireless network utilizing 802.11b with 4 laptops and 3 W2K workstations. The Server has DHCP disabled, with static IP address ranges assigned as required for the different workgroups. Which of the following would one of the first required tasks to further ensure security over your wireless network?
    Disable DHCP and assign static addresses.
    Change the default SSID from the manufacturer name to a different unique name on every device and the WAP to ensure that spread spectrum parameters may be determined by devices on the entire network.
    Disable MAC address filtering.
    Change the default SSID from the manufacturer name to a unique name that will be the same on every device and the WAP to ensure that spread spectrum parameters may be determined by devices on the entire network.
    Answer/Explanation
  • SSID (Service set identifier) is used to identify the network name, and is used to determine Spread Spectrum parameters.
    It is fairly common for the manufacturer name to be the default SSID. Every device on the same BSS (Network) requires the same SSID.
    Every device on the network along with the WAP (Wireless Access Point) requires the same SSID. When a node connects to a central device (Bridge) the wireless bridge is referred to as a Wireless Access Point (WAP).
    In an 802.11b network, or more commonly referred to as the Basic Service Set (BSS), a wireless access point (AP) acts as a bridge for the associated stations (PCs that are outfitted with wireless NICs).
    Security for wireless LANs are defined by the Wired Equivalency Protocol(WEP) standard. WEP was designed to provide confidentiality for 802.11 networks, similar to that of wired networks.
    Percentage:

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