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Which three statements correctly describe the features of the I/O calibration process?（）
A . Only one I/O calibration process can run at a time.
B . It automates the resource allocation for the Automated Maintenance Tasks.
C . It improves the performance of the performance-critical sessions while running.
D . It can be used to estimate the maximum number of I/Os and maximum latency time for the system.
E . The latency time is computed only when the TIMED_STATISTICS initialization parameter is set to TRUE.
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Which statement correctly describes the function of Oracle9i Cache Fusion feature？（）
A . It provides each session with its own view of the database at a different point in the past.
B . It enables you to execute scalable applications on a clustered database without having to partition the users or the database tables.
C . It lets you dynamically reassign memory in your database buffer cache to different block buffer sizes.
D . It allows you to add new sites to multimaster replication environment without quiescing the master definition site.
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Which two of these statements correctly describe classic PIM-SM？（）
A . The IOS default is for a last-hop router to trigger a switch to the shortest path tree as soon as a new source is detected on the shared tree.
B . The IOS default is for every one of the routers on the shared tree to trigger a switch to the shortest path tree as soon as a new source is detected on the shared tree.
C . The default behavior of switching to the shortest path tree as soon as a new source is detected on the shared tree can be disabled by setting the value in the ip pim spt-threshold command to "infinity."
D . The default behavior of switching to the shortest path tree as soon as a new source is detected on the shared tree can be disabled by setting the value in the ip pim spt-threshold command to "zero."
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Which two statements correctly describe characteristics of the PortFast feature？ （）
A . STP will be disabled on the port.
B . PortFast can also be configured on trunk ports.
C . PortFast is required to enable port-based BPDU guard.
D . PortFast is used for both STP and RSTP host ports.
E . PortFast is used for STP-only host ports.
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Which two of these correctly describe Fibre Channel? （）
A . supports multiple protocols
B . works only in a shared or loop environment
C . allows addressing for up to 4 million nodes
D . allows addressing for up to 8 million nodes
E . provides a high speed transport for SCSI payloads
F . may stretch to a distance of up to100 km before needing extender
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Which of the following correctly describe steps in the OSI data encapsulation process?（）
A . The transport layer divides a data stream into segments and may add reliability and flow control information.
B . The data link layer adds physical source and destination addresses and an FCS to the segment.
C . Packets are created when the network layer encapsulates a frame with source and destination host addresses and protocol-related control information.
D . Packets are created when the network layer adds Layer 3 addresses and control information to a segment.
E . The presentation layer translates bits into voltages for transmission across the physical link.
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Which of the following statements that describe Diffie Hellman Key exchange are correct？ （）
A . A DH key exchange is an algorithm that utilizes asymmetric cryptographic keys.
B . The DH key exchange is used to establish a shared secret over an insecure medium during an IPSec phase 1 exchange.
C . The DH exchange is susceptible to man-in-the-middle attacks.
D . The DH exchange is used to authenticate the peer device duringan IPSec phase 1 exchange.
E . A DH exchange provides Perfect Forward Secrecy （PFS）.
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Which three statements correctly describe the Cisco Validated Designs program? （）(Choose three.)
A . includes three design levels
B . incorporates products and technologies into enterprise, service provider, and commercial systems
C . extends the value of designs through a sustained development plan
D . does not factor customer input design process
E . facilitates faster and more reliable customer deployments
F . incorporates a narrow range of technologies and product
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Which two statements correctly describe VTP？（）
A . Transparent mode always has a configuration revision number of 0.
B . Transparent mode cannot modify a VLAN database.
C . Client mode cannot forward received VTP advertisements.
D . Client mode synchronizes its VLAN database from VTP advertisements.
E . Server mode can synchronize across VTP domains.
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Which of the following correctly describes the English phoneme /θ/?
A . A voiceless dental fricative
B . A voiceless alveolar fricative
C . A voiceless dental plosive
D . A voiceless alveolar plosive
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Which two of these correctly describe asymmetric routing and firewalls?（）
A . only operational in routed mode
B . only operational in transparent mode
C . only eight interfaces can belong to an asymmetric routing group
D . operational in both failover and non-failover configurations
E . only operational when the firewall has been configured for failover
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Which three statements correctly describe the features of the I/O calibration process？（）
A . Only one I/O calibration process can run at a time
B . It automates the resource allocation for the Automated Maintenance Tasks
C . It improves the performance of the performance-critical sessions while running
D . It can be used to estimate the maximum number of I/Os and maximum latency time for the system
E . The latency time is computed only when the TIMED_STATISTICS initialization parameter is set to TRUE
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Which two of these correctly describe Fibre Channel？（）
A . supports multiple protocols
B . works only in a shared or loop environment
C . allows addressing for up to 4 million nodes
D . allows addressing for up to 8 million nodes
E . provides a high speed transport for SCSI payloads
F . may stretch to a distance of up to 100 km before needing extender
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Which four statements correctly describe functions that are available in SQL? （）
A . INSTR returns the numeric position of a named character.
B . NVL2 returns the first non-null expression in the expression list.
C . TRUNCATE rounds the column, expression, or value to n decimal places.
D . DECODE translates an expression after comparing it to each search value.
E . TRIM trims the heading or trailing characters (or both) from a character string.
F . NVL compares two expressions and returns null if they are equal, or the first expression if they are not equal.
G . NULLIF compares two expressions and returns null if they are equal, or the first expression if they are not equal.
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Which statement correctly describes a situation in which VRFs are used in the data center?（）
A . Partitioning of network resources is enabled.
B . VRFs cannot support path isolation from MAN/WAN designs.
C . VRFs cannot be used to map a virtualized data center to a MPLS implementation.
D . VRFs do not allow for the use of application services with multiple access topologies.
E . An access design using a VRF allows for an aggregation layer service module solution.
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Which two of these correctly describe asymmetric routing and firewalls？ （）
A . only operational in routed mode
B . only operational in transparent mode
C . only eight interfaces can belong to an asymmetric routing group
D . operational in both failover and non-failover configurations
E . only operational when the firewall has been configured for failover
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Which of the following correctly describe characteristics of PPP?（）
A . Encapsulates several different types of routing protocols.
B . Supports only IP.
C . Can be used over analog circuits.
D . Is proprietary to Cisco
E . Supports error correction.
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Which three statements correctly describe the functions and use of constraints? （）
A . Constraints provide data independence.
B . Constraints make complex queries easy.
C . Constraints enforce rules at the view level.
D . Constraints enforce rules at the table level.
E . Constraints prevent the deletion of a table if there are dependencies.
F . Constraints prevent the deletion of an index if there are dependencies.
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Which statement correctly describes writing conventions for standard paragraphs?
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Which of the following statements is NOT correct in describing Robert?
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Which of the following cannot correctly describe the English Enlightenment Movement --
A．A.It flourished in France
B．B.It was a furtherance of the Renaissance
C．C.Its purpose was to enlighten the whole world
D．D.It emphasized "reason & order"
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Which of the following correctly describes the process of summary writing？
A、Summarizing requires attentions to the details at the very beginning.
B、Summarizing does not omit any detail in the original text.
C、Summarizing takes several steps including reading the text first.
D、Summarizing often contains long quotations from the original text.
