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【单选题】
若根据查找表建立长度为m的哈希表，假定对一个元素第一次计算的哈希地址为d，若该位置产生冲突，采用线性探测法处理冲突，则下一次的哈希地址为（ ）。A.
d+1
B.
d
C.
(d+1) % m
D.
(d+1) / m
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举一反三
【多选题】CDP is being used throughout the Ezonexam network. What are two reasons why the Ezonexam network administrator would use CDP? (Choose two)
A.
To determine the status of network services on a remote device
B.
To obtain the IP Address of a connected device in order to telnet to the device
C.
To verify the type of cable interconnecting two devices
D.
To verify Layer 2 connectivity between two devices when Layer 3 fails
E.
To obtain VLAN information from directly connected swticehs
F.
To determine the status of the routing protocols between directly connected routers
G.
To support automatic network failover during outages
【多选题】What are two reasons to create synonyms? （）
A.
You have too many tables.
B.
Your tables are too long.
C.
Your tables have difficult names.
D.
You want to work on your own tables.
E.
You want to use another schema's tables.
F.
You have too many columns in your tables.
【简答题】查询选修课程号为c05109号课程的期末最高分、最低分及之间相差的分数,可用如下SQL语句: SELECT ______(final) AS MaxScore, ______(final) AS MinScore, ______ AS Diff FROM score ______ courseno = 'c05109'
【多选题】What are two reasons a network administrator would use CDP?（）
A.
to verify the type of cable interconnecting two devices
B.
to determine the status of network services on a remote device
C.
to obtain VLAN information from directly connected switches
D.
to verify Layer 2 connectivity between two devices when Layer 3 fails
E.
to obtain the IP address of a connected device in order to telnet to the device
F.
to determine the status of the routing protocols between directly connected routers
【简答题】查询选修课程号为c05109号课程的期末最高分、最低分及之间相差的分数,可用如下SQL语句: SELECT ______(final) AS MaxScore, ______(final) AS MinScore, ______ AS Diff FROM score where courseno = 'c05109'
【多选题】What are two reasons a network administrator would use CDP (Choose two.)（）。
A.
to verify the type of cable interconnecting two devices
B.
to determine the status of network services on a remote device
C.
to obtain VLAN information from directly connected switches
D.
to verify Layer 2 connectivity between two devices when Layer 3 fails
E.
to obtain the IP address of a connected device in order to telnet to the device
F.
to determine the status of the routing protocols between directly connected routers
【简答题】查询选修课程号为c05109 的学生学号和期末成绩,并且要求平时成绩在80到95之间。
【简答题】查询选修课程号为 c05109 的学生学号、平时成绩和期末成绩,并且要求平时成绩在 80 到 90 之间。
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