(ENSA v7.0) questions with |\ |\ |\ |\
answers
An instructor is reviewing student answers on a
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previous term exam to prepare for a lecture on |\ |\ |\ |\ |\ |\ |\ |\ |\
IPv6. What would be a good point for the instructor
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to make when explaining an IPv6 GUA (global
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unicast address)? |\
It is considered a best practice to use the IPV6 GUA
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address of the router as the default gateway address for
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Windows hosts. |\
It can be configured statically or assigned dynamically on
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a router.
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It can only be configured statically on a host interface by
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using the ipv6 address command.
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It is routable on the IPv6 internet.
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It is routable on the IPv6 internet.
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An administrator needs to implement a 2.4GHz
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WLAN that requires multiple APs. Which two are
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characteristics of the 2.4GHz channels? (Choose |\ |\ |\ |\ |\ |\
two.)
,They can provide faster data transmission for wireless
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clients in heavily populated wireless networks than 5GHz
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channels.
Each channel is separated from the next channel by 20
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MHz.
There are 11 channels for North America identified by the
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802.11b standard. |\
If three adjacent APs are required, the non-overlapping
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channels 1, 21, and 41 are recommended. |\ |\ |\ |\ |\ |\
Each channel is allotted 22 MHz bandwidth.
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There are 11 channels for North America identified
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by the 802.11b standard.
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Each channel is allotted 22 MHz bandwidth.
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A technician must accommodate at least 500
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subnets from address 172.16.0.0/16. What is an
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appropriate subnet mask and corresponding |\ |\ |\ |\ |\
number of available host IP addresses per subnet
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to meet the requirement?
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255.255.255.128 and 126 hosts |\ |\ |\
255.255.255.0 and 128 hosts |\ |\ |\
255.255.255.192 and 126 hosts |\ |\ |\
255.255.255.224 and 128 hosts |\ |\ |\
255.255.255.128 and 126 hosts |\ |\ |\
Refer to the exhibit. A PC with the MAC address of
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0800.069d.3841 attached to port Fa0/8 is sending |\ |\ |\ |\ |\ |\ |\
,data to a device that has the MAC address of
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6400.6a5a.6821. What will the switch do first to |\ |\ |\ |\ |\ |\ |\ |\
handle the data transfer? |\ |\ |\
The switch will add the address 0800.069d.3841 to the
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MAC address table.
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The switch will send the frame to ports Fa0/4 and Fa0/6.
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The switch will flood the frame out all ports except port
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Fa0/8.
The switch will send the frame to port Fa0/6.
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The switch will add the address 6400.6151.6821 to the
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MAC address table.
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The switch will add the address 0800.069d.3841 to
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the MAC address table.
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Explanation: Every frame that enters a switch is |\ |\ |\ |\ |\ |\ |\ |\
checked for new information to learn. It does this by
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examining the source MAC address of the frame and port
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number where the frame entered the switch:
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If the source MAC address does not exist in the MAC
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address table, the MAC address and incoming port
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number are added to the table.
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A network engineer is giving a tour of the company
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network operations center to a college class. The
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engineer is trying to describe how a WAN and
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connectivity to the internet relate to the network |\ |\ |\ |\ |\ |\ |\ |\
infrastructure. Which statement correctly |\ |\ |\ |\
describes network infrastructure and network |\ |\ |\ |\ |\
communication?
, Communication across the internet requires application of |\ |\ |\ |\ |\ |\
recognized technologies and standards.
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LANs are used to connect WANs around the world.
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A LAN connects small networks to large global networks.
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The internet is a worldwide collection of interconnected
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networks owned by an organization. |\ |\ |\ |\
Communication across the internet requires |\ |\ |\ |\ |\
application of recognized technologies and |\ |\ |\ |\ |\
standards.
Explanation: The internet is not owned by any individual |\ |\ |\ |\ |\ |\ |\ |\
or group. Ensuring effective communication across this
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diverse infrastructure requires the application of
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consistent and commonly recognized technologies and |\ |\ |\ |\ |\ |\
standards as well as the cooperation of many network
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administration agencies. |\
A network engineer is designing a borderless
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switched network in a hierarchical fashion. Which |\ |\ |\ |\ |\ |\ |\
guideline might cause the engineer to implement a |\ |\ |\ |\ |\ |\ |\ |\
three-tier layer model? |\ |\
Fault isolation is one of the primary purposes of the
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distribution layer.xx |\
Access layer L2 switches connect to distribution layer L3
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switches, which implement routing, quality of service, and
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security.
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The core layer provides differentiated services to various
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classes of service applications at the edge of the
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network.xx