Rabu, 03 November 2010

Ujian Tengah Semester "Wireless Topology"

  1. Which wireless NIC form factors aren't best for small wireless computer devices? : choose one ?
    • PC-Card
    • Compact Flash
    • USB Adaptors
    • Mini PC
  2. What is the broadcast address of the subnet address 192.168.10.33 /29 ?
    • 192.168.10.40
    • 192.168.10.39
    • 192.168.10.255
    • 192.168.255.255
    • Leave blank
  3. What type information doesn't a wireless network support ?
    • E-mails
    • Web pages
    • database records
    • Hardware control 
    • Leave blank
  4. What type of weather impacts RF Signals the most ?
    • Cloudy
    • Small Rain
    • Windy
    • Heavy Rain
    • Leave blank
  5. What relatively new stadard applies to wireless MANs ?
    • 802.11 b
    • 802.11 g
    • 802.11 a
    • 802.11 16
    • Leave blank
  6. This is not device in wireless network :
    • Access Point
    • NIC Wireless
    • Switch
    • Wireless Bridge
    • Leave blank
  7. What isn't the source of RF interference? :
    • Cordless Phone
    • Microwaves Ovens
    • Bell Homes
    • Bluetooth Devices
    • Leave blank
  8. Which medium access protocol is common with wireless networks
    • Collision
    • C S M A C A
    • C S M A C D
    • Media Control
    • Leave blank
  9. What might a solution for interconnecting several LANs at separate but close locations to form a WAN?
    • using multiple routers at each site
    • using the same IP Addresses and subnets at all the sites
    • using combination of wired and wireless devices
    • using the same proxy server for all the LANs
    • Leave blank
  10. When using Extended Service Set, what is the recommended overlap for adjacent basic service set cells?
    • 20-25%
    • 10-15%
    • 15-20
    • 10-20%
    • Leave blank
  11. What will a wireless client broadcast when it comes online?
    • Beacon
    • Probe Request
    • Probe Response
    • Probe Acknowledge
    • Leave blank
  12. What is a wireless network topology that consists of nothing more than two or more personal computers?
    • basic infrastructure
    • base station-dialup
    • peer-to-peer
    • extended infrastructure
    • Leave blank
  13. Which phenomena occurs in a WLAN when radio waves spread around obstacles in a building?
    • large-scale diffraction
    • small-scale diffraction
    • medium-scale diffraction
    • refraction
    • Leave blank
  14. What are the three parts of a wireless client adapter?
    • PC card, dipole, LEDs
    • LEDs, transceiver, adapter
    • antenna, radio, LEDs
    • radio, antenna, power indicator
    • Leave blank
  15. In the simplest wireless LAN configuration, all devices equipped with a client adapter can communicate directly with one another, Which term describes this configuration?
    • infrastructure
    • ad hoc
    • roaming
    • microcellular
    • Leave blank
  16. Wireless LANs (WLANs) can operate at which of the following frequencies? (select two
    • 5,4 Ghz
    • 5 GHz
    • 5,8 Ghz
    • 2,4 Ghz
    • 2 Ghz
    • 2,8 Ghz
  17. What are some of the benefit of WLANs? (choose three)
    • mobility
    • long distance
    • short and long term cost savings
    • no need for an ISP
    • flexibility
    • manageability
    • no need for traditional wired routers, switch and servers
  18. Which wireless product utilize a direct sequence spread spectrum (DSSS) technology?
    • 802.11a
    • 802.11b
    • 802.11c
    • 802.11d
    • Leave blank
  19. Which wireless product utilize a orthogonal frequency-division multiplexing (OFDM) technology?
    • 802.11a
    • 802.11b
    • 802.11c
    • 802.11d
    • Leave blank
  20. What type information doesn't a wireless network support ?
    • E-mails
    • Web pages 
    • database records 
    • Hardware control