受験番号：16IPE020

問１．
1.
A communication classification device for classifying communication over an IP
network, the communication classification device comprising:an acquiring unit configured to acquire pieces of header information of packets
constituting a communication;an analyzing unit configured to obtain some of the pieces of header informationacquired by the acquiring unit or a set of more than one of the pieces of header
information;a determining unit configured to compare some of the pieces of header
information or the set of more than one of the pieces of header information obtained by
the analyzing unit with external data to determine which of attribute values indicating “anend host,” “a server,” or “unknown” each of a transmitting host and a receiving host of
the communication corresponds to; anda classifying unit configured to classify the communication as an end-host to endhost communication or a communication other than an end-host to end-hostcommunication on the basis of the attribute values determined by the determining unit.
2.

The communication classification device according to claim 1, wherein
when both of the attribute value of the transmitting host and that of the receiving
host correspond to “end hosts,” the classifying unit classifies the communication as theend-host to end-host communication; otherwise, the classifying unit classifies thecommunication as the communication other than the end-host to end-hostcommunication, or
when both of the attribute value of the transmitting host and that of the receiving
host correspond to “end hosts” or when one of the attribute values corresponds to “andend host” and the other corresponds to “unknown,” the classifying unit classifies thecommunication as the end-host to end-host communication; otherwise, the classifying
unit classifies the communication as the communication other than the end-host to endhost communication.
問２．
The present invention generally relates to a motor for a drive unit for driving an
automobile part in cooperation with another automobile part.
This type of motor includes a stator having a stator housing, a drive shaft
rotatable about the stator, a rotor attached to the drive shaft and having at least one
rotor winding, and a rectifier. In such a motor, a brush attached to the stator housing has
to be in contact with the rectifier and allow the rectifier to slide on the brush. The brushis attached to the stator housing so as to be pressed against the rectifier by means of anelastic member such as a spring. This structure for allowing the brush to be pressedagainst the rectifier by the elastic member, however, makes assembly of the motor
difficult. This is because the brush needs to be moved in the radial direction against theelastic force of the elastic member so as to insert the rectifier into the brush in assembly.

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問３.
Fig. 1 is a block diagram of a nonvolatile memory device 100 according to anembodiment of the present invention.
As illustrated in Fig. 1, the nonvolatile memory device 100 includes a cell array
110, a decoder 120, a page buffer 130, a control logic circuit 140, and a dummy bit line
bias circuit 150. The cell array 110 can include a plurality of memory blocks. One
memory block is illustrated as an example in Fig. 1.
One memory block includes a plurality of memory units. Each memory unit
includes a memory string in which a plurality of memory cells is connected in series, andselect transistors connected to both ends of the memory string. Control gates of thememory cells are connected to word lines WL0 to WL31, and control gates of the selecttransistors are connected to select gate lines GSL, SSL.
Each of the memory blocks can include a plurality of pages. One page 115 isformed along one word line WL and includes a plurality of memory cells. In the nonvolatilememory device 100, erase operation can be performed on a memory block by memory
block basis. Write operation and read operation are performed on a page by page basis.
The cell array 110 can include dummy cells. The dummy cells are connected todummy cell lines DBL0, DBL1, and DBL2. The dummy cells do not have stored thereinvalid data.

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