The document contains a 10 question multiple choice quiz about wireless and mobile networks. The questions cover topics like CDMA encoding, components of an 802.11 frame, properties of 3G and 4G wireless standards, and handoff procedures in GSM. Students are asked to choose the best answer from several options to complete statements about technical aspects of wireless networking.

1.  Home Self-Assessment Multiple Choice Quiz Chapter 7
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Self-Assessment Multiple Choice Quiz
Chapter 7: Wireless and Mobile Networks
In CDMA, let Ym be the received value in the mth mini-slot for some slot i. Let cm,
m=1,...,M, be the sender's M code values. To determine the bit value the sender sent,
the receiver
A beacon frame sent by an AP includes:
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simply declares Ysimply declares Ymm as the sent value.as the sent value.
multiples Ymultiples Ymm with the sum of the M code values.with the sum of the M code values.
multiples each Ymultiples each Ymm with the corresponding cwith the corresponding cmm, sums the resulting values and, sums the resulting values and
divides by M.divides by M.
none of the above.none of the above.
the AP's SSID.the AP's SSID.
both the AP's MAC address and SSID.both the AP's MAC address and SSID.
the AP's MAC address.the AP's MAC address.
none of the above.none of the above.

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The 802.11 protocol does not implement collision detection because
Packets sent by two stations in 802.11 can collide because
An 802.11 frame includes:
the adapter would still not be able to detect all collisions due to hiddenthe adapter would still not be able to detect all collisions due to hidden
terminals.terminals.
collision detection was found to be useless in wired Ethernet.collision detection was found to be useless in wired Ethernet.
it is costly to build wireless hardware that detects collisions.it is costly to build wireless hardware that detects collisions.
all of the above.all of the above.
the packets are sent to different APs but on the same channel.the packets are sent to different APs but on the same channel.
the two stations could be hidden from each other.the two stations could be hidden from each other.
at a given time, the random backoff values of the two stations are the same.at a given time, the random backoff values of the two stations are the same.
all of the above.all of the above.
sequence number field.sequence number field.
an acknowledgement field.an acknowledgement field.
four address fields.four address fields.
all of the above.all of the above.

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One of the major standards for 3G wireless access is
A desired property of 4G is
In the context of indirect routing for mobility management, consider a datagram
emitted by the Home agent that is destined to the Mobile node. In this datagram
The mobile IP standard includes the following pieces:
EDGE.EDGE.
IS-136.IS-136.
GPRS.GPRS.
none of the above.none of the above.
high-speed access.high-speed access.
maintenance of TCP connections while roaming.maintenance of TCP connections while roaming.
ubiquitous wireless access.ubiquitous wireless access.
all of the above.all of the above.
the permanent IP address of the Mobile node will be contained in the data fieldthe permanent IP address of the Mobile node will be contained in the data field
(payload) of the datagram.(payload) of the datagram.
the source IP address will be that of the mobile node.the source IP address will be that of the mobile node.
the destination IP address will be that the Foreign agent.the destination IP address will be that the Foreign agent.
all of the above.all of the above.

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g p
In GSM, when system decides to hando a mobile user, which of the following
devices informs the visited MSC that a hando is to be performed:
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agent discovery.agent discovery.
indirect routing of datagrams.indirect routing of datagrams.
registration with the home agent.registration with the home agent.
all of the above.all of the above.
the VLR.the VLR.
the new base station.the new base station.
the mobile itself.the mobile itself.
the old base station.the old base station.