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CompTia Networking
Chapter 1
50
Computer Networking
Undergraduate 4
08/21/2013

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Cards

Term
Which of the following is an advantage of using a client/server network over using a peer-to-peer network?
Definition
A client/server network allows resources to be managed centrally.
Term
What is the primary function of a file server on a client/server network?
Definition
It manages access and use of shared applications and data
Term
Suppose you wanted to share documents among several computers in your household in a peer-to-peer fashion. You could do that by properly configuring which of the following types of software?
Definition
Operating system software
Term
The first services widely used by networks were:
Definition
File and print services
Term
On a client/server network, clients and servers usually require what to communicate?
Definition
A connectivity device
Term
Your colleague, in describing the benefits of a client/server network, mentions that it’s more scalable than a peer-to-peer network. What does she mean by this?
Definition
The client/server network can be more easily expanded.
Term
In which of the following environments would a WAN be most appropriate?
Definition
A global hotel chain connecting its reservation desks to a central call center
Term
Which of the following refers to the combination of voice (such as telephone), video, and data signals sent over the same network?
Definition
Convergence
Term
In networking, what does a packet refer to?
Definition
A unit of data
Term
How can a server distinguish between many clients on a network?
Definition
Each client is identified by a unique network address.
Term
What device connects a client computer to a network's medium, such as a wire?
Definition
Network interface card
Term
What elements of a network ensure that data arrive at their intended destination in the correct sequence?
Definition
Protocols
Term
The physical layout of nodes on a network is known as the network's:
Definition
Topology
Term
Which of the following is an example of a mail service?
Definition
Exchanging messages between mail servers on different networks
Term
Which of the following network topologies is most common on today's networks?
Definition
Star
Term
Security is a concern when using remote access servers on a network because:
Definition
Access servers enable computers to connect to a network and obtain access to its resources, thereby exposing the network to the outside world.
Term
Which of the following is an example of asset management on a client/server network?
Definition
Determining how many handheld computers are in a company’s warehouse
Term
Distributing data transfer activity equally over several devices or components belongs to which category of network management services?
Definition
Load balancing
Term
Apache is a popular example of what type of networking software?
Definition
Web server
Term
What organization sponsors the CCNA and CCIE certifications?
Definition
Cisco
Term
True or False: The biggest difference between a LAN and WAN is usually
the size of the network.
Definition
True. A WAN is a network that spans more than one geographic location,
often connecting separated LANs.
Term
What network model offers no centralized storage of data or centralized
control over the sharing of files or resources?
Definition
A peer-to-peer network is a decentralized network model offering no centralized
storage of data or centralized control over the sharing of files or
resources.
Term
In what networking model is the processing power shared between the
client systems and the server?
Definition
A distributed network model has the processing power distributed
between the client systems and the server.
Term
LAN
Definition
data network restricted to a single geographic location and typically
encompasses a relatively small area, such as an office building or school
Term
WAN
Definition
a network that spans more than one geographic location, often
connecting separated LANs.
Term
Peer-to-Peer
Definition
network is a decentralized network model offering no centralized
storage of data or centralized control over the sharing of files or
resources. All systems on a peer-to-peer network can share the resources on
their local computer and use resources of other systems
Term
Client/Server Networking Model
Definition
networking model is, without question, the most widely
implemented model and the one you are most likely to encounter when working
in real-world environments.
Term
centralized computing
Definition
In a centralized computing model, one
system provides both the data storage and processing power for client systems.
This networking model is most often associated with computer mainframes
and dumb terminals, where no processing or storage capability exists at the
workstation.
Term
distributed computing
Definition
A distributed network model has the processing power distributed between
the client systems and the server. Most modern networks use the distributed
network model, where client workstations share in the processing
responsibilities.
Term
What is the maximum number of computers recommended for inclusion in a
peer-to-peer network?
Definition
The maximum number of computers recommended in a peer-to-peer network
is 10.
Term
When a WAN is confined to a certain geographic area, such as a university campus
or city, it is known as a
Definition
A WAN can be referred to as a MAN (Metropolitan Area Network) when it is
confined to a certain geographic area, such as a university campus or city.
Term
Ad Hoc Wireless
Definition
wireless ad hoc topology, devices communicate directly between themselves
without using an access point. This peer-to-peer network design is commonly
used to connect a small number of computers or wireless devices.
Term
Infrastructure Wireless
Definition
Wireless devices communicate with the wired LAN
through a base station known as an access point (AP) or wireless access point.
Term
point-to-point (PtP) wireless configuration,
Definition
communication link travels from one node directly to one other node.
Wireless point-to-point systems often are used in wireless backbone systems,
such as microwave relay communications, or as a replacement for a single
wired communication cable.
Term
Self-healing:
Definition
Wireless mesh networks are known as self-healing, which
refers to the network’s capability to adapt to network failure and even
function should a node be moved from one location to another. Selfhealing
in a wireless mesh environment is possible because of the interconnected
connections and because of the wireless media
Term
You have been asked to install a network to give the network users the greatest
amount of fault tolerance. Which of the following network topologies would you
choose?
Definition
A mesh network uses a point-to-point connection to every device on the network.
This creates multiple points for the data to transmit around the network
and therefore creates a high degree of redundancy. The star, ring, and bus
topologies do not offer fault tolerance.
Term
Which of the following topologies enables network expansion with the least amount of disruption for the current network users?
Definition
On a star network, each network device uses a separate cable to make a
point-to-point connection to a centralized device such as a hub or switch. With
such a configuration, you can add a new device to the network by attaching the
new device to the hub or switch with its own cable.
Term
NOS (network operating system)
Definition
Server software
Enables server to manage data, users, groups, security, applications, and other networking functions
Term
You have been asked to connect two office locations. It has been specified that
you use a wireless link. Which of the following strategies would you use to connect
the two offices?
Definition
In a point-to-point (PtP) wireless configuration, the communication link travels
from one node directly to one other node. Wireless point-to-point systems are
often used in wireless backbone systems such as microwave relay communications
or as a replacement for a single wired communication cable.
Term
Which of the following statements are associated with a bus LAN network?
Definition
In a bus network, a single break in the network cable can disrupt all the
devices on that segment of the network—a significant shortcoming
Term
Node
Definition
Client, server, or other device
Communicates over a network
Identified by unique number (network address)
Term
Segment
Definition
Group of nodes
Use same communications channel for traffic
Term
Protocol
Definition
Standard method or format for communication between networked devices
Term
Packet
Definition
Distinct data units exchanged between nodes
Term
Addressing
Definition
Scheme for assigning unique identifying number to every node
Term
Transmission media
Definition
Means through which data is transmitted and received
Term
How Networks Are Used
Definition
Network services
Functions provided by a network
E-mail
Printer sharing
File sharing
Internet access and Web site delivery
Remote access capabilities
Voice (telephone) and video services
Network management
Term
Convergence
Definition
Offering multiple types of communications services on the same network
Term
Unified communications
Definition
Centralized management of multiple network-based communications
Term
Web server
Definition
Computer installed with appropriate software to supply Web pages to many different clients upon demand
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