Network+ Chapter 1

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peeojay
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259949
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Network+ Chapter 1
Updated:
2016-04-24 04:28:32
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Network topologies
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Introduction to Networks
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  1. What are the three primary LAN topologies.
    Star, Bus, Ring
  2. What common WAN topology often results in multiple connections to a single site, leading
    to a high degree of fault tolerance?
    Mesh
  3. What is the term for a device that shares its resources with other network devices?
    Server
  4. What network model draws a clear distinction between devices that share their resources
    and devices that do not?
    Client/Server
  5. Which network topology or connection type can be implemented with only two endpoints?
    Point-to-Point
  6. What device is an example of an Ethernet technology implemented as a star topology?
    Hub
  7. What does VPN stand for?
    Virtual Private Network
  8. What does VLAN stand for?
    Virtual Local Area Network
  9. Will a computer that shares no resources most likely be connected to the backbone or to
    a segment?
    Segment
  10. Which LAN topology is characterized by all devices being daisy-chained together with the
    devices at each end being connected to only one other device?
    Bus
  11. You need a network that provides centralized authentication for your users. Which of the
    following logical topologies should you use?
    A. VLANs
    B. Client/Server
    C. Mesh
    D. Peer-to-peer
    B. Client/Server
    (this multiple choice question has been scrambled)
  12. You need a topology that is scalable to use in your network. Which of the following will
    you install?
    A. Bus
    B. Ring
    C. Star
    D. Mesh
    C. Star
    (this multiple choice question has been scrambled)
  13. Which of the following physical topolgies has the least likelihood of having a collision?
    A. Mesh
    B. Ring
    C. Bus
    D. Start
    A. Mesh
    (this multiple choice question has been scrambled)
  14. In a physical-star topology, what happens when a workstation loses its physical connection
    to another device?
    A. The ring is broken, so no devices can communicate.
    B. Only that workstation loses its ability to communicate.
    C. That workstation and the device it’s connected to lose communication with the rest of
    the network.
    D. No devices can communicate because there are now two unterminated network segments.
    B. Only that workstation loses its ability to communicate.
    (this multiple choice question has been scrambled)
  15. You want to remotely log into an office computer using remote desktop in a secure manner.
    Which of the following should you use?
    A. VPN
    B. Tagged packets
    C. VLANs
    D. SSH
    E. Telnet
    A. VPN
    (this multiple choice question has been scrambled)
  16. What is a logical grouping of network users and resources connected to administratively
    defined ports on a switch?
    A. Hub
    B. VTP
    C. Host
    D. VLAN
    D. VLAN
    (this multiple choice question has been scrambled)
  17. Which of the following is a concern when using peer-to-peer networks?
    A. The security associated with such a network
    B. Where to place the server
    C. Whose computer is least busy and can act as the server
    D. Having enough peers to support creating such a network
    A. The security associated with such a network
    (this multiple choice question has been scrambled)
  18. Which of the following is an example of when a point-to-multipoint network is called for?
    A. When there are only two nodes in the network to be connected
    B. When multiple offices are daisy-chained to one another in a line
    C. When a centralized office needs to communicate with many branch offices
    D. When a full mesh of WAN links is in place
    C. When a centralized office needs to communicate with many branch offices
    (this multiple choice question has been scrambled)
  19. Which of the following is an example of a LAN?
    A. Ten routers interconnected by frame-relay circuits
    B. Ten buildings interconnected by Ethernet connections over fiber-optic cabling
    C. A computer connected to another computer so they can share resources
    D. Two routers interconnected with a T1 circuit
    C. A computer connected to another computer so they can share resources
    (this multiple choice question has been scrambled)
  20. Which of the following is a disadvantage of the star topology?
    A. When a port on the central concentrating device fails, the attached end device loses
    connectivity to the rest of the network.
    B. When the central concentrating device experiences a complete failure, all attached
    devices lose connectivity to the rest of the network.
    C. In a star topology, a more expensive type of host must be used when compared to the
    host used when implementing a physical bus.
    D. It is more difficult to add stations and troubleshoot than with other topologies.
    • B. When the central concentrating device experiences a complete failure, all attached
    • devices lose connectivity to the rest of the network.
  21. What is a difference between a LAN and a WAN?
    A. WANs need a special type of router port.
    B. WANs cover larger geographical areas.
    C. WANs can utilize either private or public data transport.
    D. All of the above.
    D. All of the above.
  22. What does the acronym VPN stand for?
    A. Virtual processor network
    B. Virtual passive network
    C. Variable-length private network
    D. Virtual private network
    D. Virtual private network
    (this multiple choice question has been scrambled)
  23. In what type of network are all computers considered equals and do they not share any
    central authority?
    A. Client-server
    B. Physical topology
    C. Peer-to-peer
    D. None of the above
    C. Peer-to-peer
    (this multiple choice question has been scrambled)
  24. What advantage does the client-server architecture have over peer-to-peer?
    A. Easier maintenance
    B. Greater organization
    C. Tighter security
    D. All of the above
    D. All of the above
  25. An example of a hybrid network is which of the following?
    A. Ethernet
    B. Bus topology
    C. Ring topology
    D. Star topology
    A. Ethernet
    (this multiple choice question has been scrambled)
  26. You have a network with multiple devices and need to have a smaller broadcast domain
    while working with a tight budget. Which of the following is the best solution?
    A. Create VLANs
    B. Implement more switches
    C. Use static IP addresses
    D. Add more hubs
    A. Create VLANs
    (this multiple choice question has been scrambled)
  27. Which type of topology has the greatest number of physical connections?
    A. Mesh
    B. Star
    C. Point-to-point
    D. Point-to-multipoint
    A. Mesh
    (this multiple choice question has been scrambled)
  28. What type of topology gives you a direct connection between two routers so that there is
    one communication path?
    A. Straight
    B. Star
    C. Bus
    D. Point-to-point
    D. Point-to-point
    (this multiple choice question has been scrambled)
  29. Which network topology is a combination of two or more types of physical or two or more
    types of logical topologies?
    A. Bus
    B. Star
    C. Point-to-multipoint
    D. Hybrid
    D. Hybrid
    (this multiple choice question has been scrambled)
  30. When designing a network and deciding which type of network topology to use, which
    item(s) should be considered? (Select all that apply.)
    A. Cost
    B. Ease of installation
    C. Ease of maintenance
    D. Fault-tolerance requirements
    • A. Cost
    • B. Ease of installation
    • C. Ease of maintenance
    • D. Fault-tolerance requirements
  31. The device an end user uses to access a network.
    Client
  32. Interconnects network components.
    Hub
  33. Interconnects network components.  Learns which devices reside off of which ports.  It is a layer two device.  It makes forwarding decisions based on network interface card (NIC) installed in a host.
    Switch
  34. Interconnects network components.  It makes forwarding decisions based on logical network addresses.  It is a layer three device.
    Router
  35. It could be cooper, fiber or wireless.
    Media
  36. Two locations interconnected, the link that interconnects the two locations is typically referred to as a wide-area-network or WAN.
    WAN-link
  37. Interconnects network components within a logical region
    Local Area Network or LAN
  38. What does IEEE stand for?
    Institute of Electrical, Electronics and Engineering
  39. What interconnects networks that are geographically separated?
    WAN
  40. What is  CAN, MAN and PAN?
    • Campus Area Network 
    • Metropolitan Area Network--it interconnects scattered locations within a metropolitan area.
    • Personal Area Network--very small scale (bluetooth).
  41. How does one determine physical or logical topology?
    How traffic flows determines the logical topology and how components are interconnected determines physical topology.
  42. What topology uses cable running through the area requiring connectivity to access network resources?  What type of connect does it use.
    • Bus.
    • BNC
  43. What topology is described where traffic flows in a circular fashion around a closed network loop.  Typically it sends data in a single direction to each connected device in turn until the intended destination receive the data.
    Ring
  44. There is another technology that is a variant of ring topology.
    Fiber Distributed Data Interface or FDDI.
  45. What type of technology uses a hub at the centre and a collection of clients individually connected to the hub.
    Star
  46. What topology interconnects multiple sites, it has a WAN link from each remote site to the main site.
    Hub and spoke
  47. How does hub-and-spoke topology help minimize WAN expenses?  How is this done?  What agency can benefit from this topology?
    No direct connection are made between two spoke locations.  If the two need to communication, data is sent through the hub.  Service providers use this a charge a recurring fee for each link.
  48. What topology connects every site to every other site
    Full mesh
  49. What topology is a hybrid of hub and spoke and full mesh?  How is this topology less expensive.
    Partial mesh is less expensive because it does not connect every site to every other site.
  50. Which of the following is a device directly used by an end user to access a network?
    A. LAN
    B. Router
    C. Server
    D. Client
    D. Client
    (this multiple choice question has been scrambled)
  51. Which device makes traffic-forwarding decisions based on MAC addresses?
    A. Switch
    B. Hub
    C. Multiplexer
    D. Router
    A. Switch
    (this multiple choice question has been scrambled)
  52. A company has various locations in a city interconnected using Metro Ethernet connections. This is an example of what type of network?
    A. PAN
    B. CAN
    C. MAN
    D. WAN
    C. MAN
    (this multiple choice question has been scrambled)
  53. A network formed by interconnecting a PC to a digital camera via a USB cable is considered what type of network?
    A. WAN
    B. MAN
    C. PAN
    D. CAN
    C. PAN
    (this multiple choice question has been scrambled)
  54. Which of the following LAN topologies requires the most cabling?
    A. WLAN
    B. Star
    C. Bus
    D. Ring
    B. Star
    (this multiple choice question has been scrambled)
  55. Which of the following topologies offers the highest level of redundancy?
    A. Bus
    B. Hub and spoke
    C. Full mesh
    D. Partial mesh
    C. Full mesh
    (this multiple choice question has been scrambled)
  56. How many WAN links are required to create a full mesh of connections between five remote sites?
    A. 10
    B. 20
    C. 5
    D. 15
    A. 10
    (this multiple choice question has been scrambled)
  57. Identify two advantages of a hub-and-spoke WAN topology as compared to a full-mesh WAN topology. (Choose two.)
    a. Lower cost
    b. Optimal routes
    c. More scalable
    d. More redundancy
    • a. Lower
    • c. More scalable
  58. Which type of network is based on network clients sharing resources with one another?
    A. Client-server
    B. Client-peer
    C. Peer-to-peer
    D. Peer-to-server
    C. Peer-to-peer
    (this multiple choice question has been scrambled)

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