Cisco Chapter 2 Revision Guide
Question 1
What was the primary business needs that lead to the development of LANs?(Choose 3)
a) Avoid the needs for unnecessary equipment
b) Improve productivity whilst reducing costs
c) Reduce file redundancy
d) Connect users in different countries
e) Prevent exhaustion caused by sneakernet networks
Learn why LANs were developed and the primary benefits of having a LAN!
Question 2
List the advantages and disadvantages of electronic bulletin boards
Learn how and why electronic bulletin
boards were developed and what purpose they served!
Question 3
Which of the following types of networks make use of packets?(Choose 3)
a) Ethernet
b) FDDI
c) Sneakernet
d) Frame Relay
e) Star Topology
f) ISDN
Learn your network types both logically and physically and how they operate!
Question 4
List three possible LAN design goals
Learn the major benefits of installing a
LAN in an organisation!
Question 5
Which of the following are considered LAN Technologies?(Choose 3)
a) DSL
b) Ethernet
c) Modem
d) Token Ring
e) FDDI
f) ADSL
Learn what is considered to be a LAN technology or a WAN technology and what the differences are!
Question 6
List three ways in which bandwidth is measured
Learn your
methods for bandwidth measurements and how they are calculated!
Question 7
Which of the following are used to determine bandwidth?(Choose 3)
a) Bandwidth is the measure of how much information, or bits, can flow from one place to another in a given amount of time
b) Bandwidth is the maximum theoretical capacity of a network
c) Bandwidth is the actual capacity of a network
d) Bandwidth is affected by the type of medium used on a network
e) Bandwidth is calculated in Nbps
Learn the methods
used in calculating bandwidth and throughput and what the differences are, also
learn what can affect both bandwidth and throughput!
Question 8
List the two factors involved when a network administrator wishes to calculate an estimate of network performance
Learn how network performance is calculated, you should be able to calculate file transfer times on different networks operating at different speeds!
Question 9
What reasons prompted the development of a standardised set for rules to define networking technologies? (Choose 3)
a) Networks used different specifications and implementations to exchange information
b) Networking technologies strictly following proprietary rules could communicate with technologies that followed different proprietary rules
c) Proprietary networking technologies seldom presented problems in communication among different external networks
d) Companies developed private or proprietary networking technologies
e) The federal government wanted a level playing filed for all of the networking industry
Learn the history of networking standardisation and why it occurred in the fist place!
Question 10
List the advantages of having a seven-layer OSI Model
Learn why we
bother to have a seven-layer model, doesnt it overcomplicate matters?
Question 11
Which protocols is commonly part of layer 7 of the OSI Model? (Choose 3)
1. FTP
2. DNS
3. UDP
4. TCP
5. HTTP
Learn the
protocols used at all layers of the OSI Model and what they stand for!
Question 12
Name the seven layers of the OSI Model and what function they perform
Get to know your layers, remember - all people seem to need dominos pizza!
Question 13
Which of the following are Network layer encapsulation details?
1. Each network device must put the packet into a frame
2. The frame must be converted into a pattern of 1s and 0s (bits) for transmission on the medium
3. The data is put into a packet or datagram that contains a packet header with source and destination logical addresses
4. Package the data for end-to-end transport
5. Add the data link layer header and trailer
Learn the encapsulation process, what happens at each layer and why!
Question 14
What device is used to extend the length a network signal can travel?
1.
Hub
2.
Switch
3.
Router
4.
Repeater
5.
PC
Learn your devices and what function they perform!
Question 15
Name the principle network topologies and their principle
characteristics
Learn your
topologies; also learn why we would favour one topology over another, what
their individual strengths or weaknesses are!
Question 16
Which type of network is represented below and what is its primary function?
Learn your
network types and what purpose they fulfil All of them!
Question 17
List the layers of the TCP/IP Model and their functions and the protocols associated with each layer
Learn the TCP/IP
Model, you should be able to compare it to the OSI model and comment on the
similarities/differences!
Question 18
In a description of throughput that uses the analogy of a network of pipes bringing water to and from a house, which of the following represents throughput?
1. The maximum amount of water coming through the pipe
2. The actual amount of water coming through the pipe
3. The type of water coming through the pipe
4. The pressure of water coming through the pipe
5. The size of the pipe
Learn what both bandwidth and throughput represent in networking terms!
Question 19
Which of the following is the approximate amount of time it would take to transmit a 12.6MB file on a T1 Connection?
1. 1 min 23 secs
2. 1 min
3. 28 secs
4. 3 mins 12 secs
5. 65 secs
Learn how to calculate theoretical throughputs, learn the formula for working these out and learn the connection speeds for differing media!
Question 20
Which of the following is the layer 5 PDU?
1. Packet
2. Frame
3. Bit
4. Data
5. Segment
Learn the
encapsulation process and what happens at each layer!
Question 21
What is important to remember about the data link layer of the OSI model when considering Peer to Peer communication? (Choose 3)
1. It links data to the transport layer
2. It encapsulates frames into packets
3. It provides a service to the network layer
4. It encapsulates the network layer information into a frame
5. Its header contains a physical address which is required to complete the data link functions
6. It encodes the data link frame into a pattern of 1 s and 0 s (bits) for transmission on the medium
Again learn the
different layer functions thoroughly!