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Which two statements about SCSI are true？ （）
A . The bus is limited to 32 devices
B . It is a full duplex serial standard
C . It is a half-duplex serial standard
D . It allows up to 320 MB/s of shared channel bandwidth
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Which four statements about NetFlow are true？（）
A . NetFlow records bidirectional IP traffic flow.
B . NetFlow export can be implemented over IPv4.
C . NetFlow export can be implemented over IPv6.
D . NetFlow records multicast IP traffic flow.
E . NetFlow records ingress traffic.
F . NetFlow records egress traffic.
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Which statement is false about sales catalogs？（）
A . Sales catalogs are used for customer display purposes.
B . With a sales catalog products can be placed in many locations.
C . If sales catalogs are used then it is not necessary to have a master catalog.
D . Sales catalogs can be used to target specific customer segments.
E . Sales catalogs can be used to control what products a customer can see.
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Which three statements are true about policing？（）
A . Out-of-profile packets are queued.
B . It causes TCP retransmits.
C . Marking and remarking are not supported.
D . It does not respond to BECN and foresight messages.
E . It uses a single- and two-bucket mechanism for metering.
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Which two statements about zoning are correct? （）
A . Zoning increases security.
B . DNS queries are used for software zoning.
C . Software zoning is more secure than hardware zoning.
D . When using zones and VSANs together, the zone is created first.
E . Zoning requires that VSANs be established before it becomes operational.
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Which statement about VPLS is true？（）
A . All CE devices emulate a bridge
B . All provider devices emulate a bridge
C . Hierarchical VPLS reduces signaling overhead
D . Each PE device emulates a bridge
E . Each CE device emulates a bridge
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Which statement about OSPF authentication is true？（）
A . To enable OSPF authentication in a network， OSPF area 0 authentications must be enabled first
B . The payload of OSPF version 3 packets contains no authentication information
C . OSPF version 3 supports Advanced Encryption Standard
D . OSPF version 3 uses router ID as a key to encrypt OSPF hello packets
E . OSPF MD5 authentication uses TCP， and Plan Test authentication uses UDP
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Which two statements about subqueries are true? （）
A . A single row subquery can retrieve data from only one table.
B . A SQL query statement cannot display data from table B that is referred to in its subquery, unless table B is included in the main query's FROM clause.
C . A SQL query statement can display data from table B that is referred to in its subquery, without including table B in its own FROM clause.
D . A single row subquery can retrieve data from more than one table.
E . A single row subquery cannot be used in a condition where the LIKE operator is used for comparison.
F . A multiple-row subquery cannot be used in a condition where the LIKE operator is used for comparison.
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Which three statements about RSTP are true？（）
A . RSTP significantly reduces topology reconverging time after a link failure.
B . RSTP expends the STP port roles by adding the alternate and backup roles.
C . RSTP port states are blocking，discarding，learing，or forwarding.
D . RSTP also uses the STP proprsal-agreement sequence.
E . RSTP use the same timer-baseed process as STP on point-to-point links.
F . RSTP provides a faster transition to the forwarding state on point-to-point links than STP does.
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Which two statements about WRED are true？ （）
A . WRED can selectively discard lower priority traffic when the interface becomes congested and can provide differentiated performance characteristics for different classes of service.
B . Resource Reservation Protocol （RSVP） and WRED cannot be configured on the same interface.
C . WRED will throttle back voice traffic only as a last resort.
D . If the average queue length is greater than the minimum threshold but less than the maximum threshold， then based on the drop probability， WRED will either queue the packet or perform a random drop.
E . WRED statistically drops more packets from low-bandwidth users than high-bandwidth users. Therefore， traffic sources that generate the least traffic are more likely to be slowed down than traffic sources that generate the most traffic.
F . WRED treats non-IP traffic as precedence 4.
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Which two statements are true about alerts（）
A . Clearing an alert sends the alert to the alert history.
B . Response actions cannot be specified with server-generated alerts.
C . The nonthreshold alerts appear in the DBA_OUTSTANDING_ALERTS view.
D . Server-generated alerts notify the problems that cannot be resolved automatically and requireadministrators to be notified.
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Which three statements about subqueries are true? （）
A . Asinglerowsubquerycanretrieveonlyonecolumnandonerow.
B . Asinglerowsubquerycanretrieveonlyonerowbutmanycolumns.
C . Amultiplerowsubquerycanretrievemultiplerowsandmultiplecolumns.
D . Amultiplerowsubquerycanbecomparedusingthe"；>；"；operator.
E . AsinglerowsubquerycanusetheINoperator.
F . Amultiplerowsubquerycanusethe"；="；operator.
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Which two statements are true about checkpointing（）
A . The checkpoint frequency decreases with the smaller redo log file size.
B . It ensures that all committed data is written to the data files during normal shutdown.
C . The frequent full checkpoint in a database can cause the overall degradation of the database performance.
D . It prompts the Checkpoint （CKPT） process to write data to the data files and redo information to the online redo log files.
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Which statement about the gyrocompass is FALSE（）.
A . Its accuracy remains the same at all latitudes
B . It seeks the true meridian
C . It can be used near the Earth's magnetic poles
D . If an error exists，it is the same on all heading
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Which statement about immersion suits is TRUE?（）
A . The primary color of the suit's exterior may be red，orange or yellow
B . The suit must，without assistance，turn an unconscious person's mouth clear of the water within 5 seconds
C . The suit is flameproof and provides protection to a wearer swimming in burning oil
D . The suit may be stored in a machinery space where the ambient temperature is 160°F
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Which three statements about RSTP are true?（）
A . RSTP significantly reduces topology reconverging time after a link failure.
B . RSTP expends the STP port roles by adding the alternate and backup roles.
C . RSTP port satates are blocking,discarding,learing,or forwarding.
D . RSTP also uses the STP proprsal-agreement sequence.
E . RSTP use the same timer-baseed process as STP on point-to-point links.
F . RSTP provides a faster transition to the forwarding state on point-to-point links than STP does.
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Which statement about RIPng is true?（）
A . RIPng allows for routes with up to 30 hops.
B . RIPng is enabled on each interface separately.
C . RIPng uses broadcasts to exchange routes.
D . There can be only one RIPng process per router.
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Which statement is true about vishing？（）
A . Influencing users to forward a call to a toll number （for example， a long distance or international number）
B . Influencing users to provide personal information over a web page
C . Using an inside facilitator to intentionally forward a call to a toll number （for example， a long distance orinternational number）
D . Influencing users to provide personal information over the phone
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Which statements about inheritance are true？（）
A . In Java programming language only allows single inheritance.
B . In Java programming language allows a class to implement only one interface.
C . In Java programming language a class cannot extend a class and implement a interface together.
D . In Java programming language single inheritance makes code more reliable.
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Which statements are true about checkpointing（）
A . The checkpoint frequency decreases with the smaller redo log file size.
B . It ensures that all committed data is written to the data files during normal shutdown.
C . The frequent full checkpoint in a database can cause the overall degradation of the database performance.
D . It prompts the Checkpoint （CKPT） process to write data to the data files and redo information to the onlineredo log file
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Which of following statements about intercultural ...
Which of following statements about intercultural and international business are true？
A.With some awareness of it, business people are able to understand the norms, customs, values and beliefs of another culture.
B.It mainly focuses on business trade between companies from different countries or cultures.
C.It chiefly concerns how people from different countries or cultures communicate with each other.
D.In the communication related to it, business people are supposed to adapt themselves to such a context and environment.
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Which statement about gluconeogenesis is FALSE（）
A．For starting materials, it can use carbon skeletons derived from certain amino acids
B．It consists entirely of the reactions of glycolysis, operating in the reverse direction
C．It employs the enzyme glucose 6-phosphatase
D．It is one of the ways that mammals maintain normal blood glucose levels
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Which statement about ethanol is correct（）
A．AIt burns in air to form ethene and water
B．BIt is prepared from ethene by fermentation
C．CIt is prepared from glucose in an addition reaction
D．DIt is the only product when ethene reacts with steam
