row level
block level
object level
schema level
database level
第1题：
A.transparent
B.auto
C.on
D.desirable
E.blocking
F.forwarding
第2题：
Which statement about two lines spliced together is TRUE ________．
A.Splicing is used to increase the circumference of each line
B.Splicing two lines together is stronger than knotting two lines together
C.Splicing is used to increase the overall strength of the line
D.Splicing is used to prevent rotting of the lines bitter end
第3题：
Intermediate system to intermediate system (IS - IS), is a protocol used by network devices (routers) to determine the best way to forward datagrams through a packet - switched network, a process called routing. Which three attributes are of the IS - IS routing protocol? （）
A. supports VLSM
B. link - state routing protocol
C. operati on is similar to BGP
D. supports two routing levels within an autonomous system
第4题：
Which are valid modes for a switch port used as a VLAN trunk?（）
第5题：
Intermediate system to intermediate system (IS - IS), is a protocol used by network devices (routers) to determine the best way to forward datagrams through a packet - switched network, a process called routing. Which three attributes are of the IS - IS routing protocol? （）
第6题：
The most commonly used locking level in implementing concurrency control is at which of the following levels?
A．database
B．table
C．record
D．field
第7题：
Which two are valid locking levels that are used by transactions in an Oracle database？（）
第8题：
A.transparent
B.auto
C.on
D.desirable
第9题：
Which routing protocol supports a flexible area structure using routing levels one and two?（）
第10题：
When a switch port is used as a VLAN trunk, which of the following trunk modes are valid?（）