-
Which statement best describes the Turbo ACL feature？ （）
A . The Turbo ACL feature processes ACLs into lookup tables for greater efficiency
B . The Turbo ACL feature leads to increased latency， because the time it takes to match the packet isvariable
C . The Turbo ACL feature leads to reduced latency， because the time it takes to match the packet is fixedand consistent
D . Turbo ACLs increase the CPU load by matching the packet to a predetermined list
-
Which two of these statements best describe the benefits of WPAv1？ （）
A . SSID broadcast prevention
B . Improved mutual authentication
C . Improved encryption through AES
D . Improved protection against sniffing initialization vectors
E . RF jamming preventio
-
Which statement best describes Cisco supervisor engine redundancy using Stateful Switchover？（）
A . Switchover ensures that Layer 2 through Layer 4 traffic is not interrupted
B . Redundancy requires BGP， OSPF， EIGRP， or IS-IS
C . Redundancy provides fast supervisor switchover for all Cisco Catalyst 6500 series switches
D . Switchover can be caused by clock synchronization failure between supervisor
-
Which two statements best describe enhanced wireless security encryption？（）
A . TKIP protects RC4 encryption keys
B . CKIP and TKIP protect AES encryption keys
C . TKIP encryption is more processor intensive than AES encryption is
D . WPA requires TKIP encryption， whereas WPA2 supports AES encryption
E . WPA requires AES encryption， whereas WPA2 supports TKIP encryptio
-
Which statement best describes what is depicted in the show command output？（）
A . IGMP snooping is not active for VLAN 120 because the IGMP feature has not been enabled on the switch with the feature igmp command.
B . The IGMP snooping querier for VLAN 120 is not in a running state because the Loopback interface configured with 1.1.1.1/32 is currently in a down state.
C . IGMP snooping has been disabled on the VLAN 120 SVI.
D . IGMP snooping has been disabled for VLAN 120 in VLAN configuration mode.
E . IGMP snooping is not active for VLAN 120 because VLAN 120 does not exist in the VLAN database.
-
Which two statements best describe EtherChannel？（）
A . EtherChannel technology helps aggregate traffic grouping multiple，full-duplex point-to-point linkstogether
B . EtherChannel technology is based on the 802.1 IEEE stand
C . EtherChannel can aggregate up to 800 Mbps，8 Gbps，or Gbps of aggregate bandwidth for a Fast EtherChannel，Gigabit EtherChannel，or 10 Gigabit EtherChannel connection respectively
D . EtherChannel is defined for Rapid Spanning Tree for faster convergence
-
Which of these statements best describes VPLS？（）
A . Neither broadcast nor multicast traffic is ever flooded in VPLS.
B . Multicast traffic is flooded but broadcast traffic is not flooded in VPLS.
C . VPLS emulates an Ethernet switch， with each EMS being analogous to a VLAN.
D . Because U-PE devices act as IEEE 802.1 devices， the VPLS core must use STP.
E . When the provider experiences an outage， IP re-routing restores PW connectivity and MAC re-learning is needed.
-
Which statement best describes OSPF external LSAs （type 5）？（）
A . OSPF external LSAs are automatically flooded into all OSPF areas， unlike type 7 LSAs， which require that redistribution be configured.
B . External LSAs （type 5） are automatically changed to type 1 LSAs at ASBRs.
C . Type 5 LSAs are route summaries describing routes to networks outside the OSPF Autonomous System.
D . External network LSAs （type 5） redistributed from other routing protocols into OSPF are not permitted to flood into a stub area.
-
Which statement best describes echo?（）
A . Echo is the discernable leak-through of your own Rx path into your own Tx path.
B . Echo is the discernable leak-through of the packets of your Rx path into your own Tx path.
C . Echo is the nonaudible leak-through of the packets of your Rx path into your own Tx path.
D . Echo is the audible leak-through of the packets from the transmit path into your own receive path.
E . Echo is the nonaudible leak-through of the packets of your Tx path into your own Rx path.
-
Which of the following statements best describes Flashback Versions Query？（）
A . Flashback Versions Query is used to make changes to multiple versions of data that existed between two points in time.
B . Flashback Versions Query is used to view all version changes on rows that existed between the time the query was executed and a point in time in the past.
C . Flashback Versions Query is used to view version changes and the SQL to undo those changes on rows that existed between two points in time.
D . Flashback Versions Query is used to view all version changes on rows that existed between two points in time.
-
Which two statements best describe CBWFQ？（）
A . The CBWFQ scheduler provides a guaranteed minimum amount of bandwidth to each class.
B . CBWFQ services each class queue using a strict priority scheduler.
C . The class-default queue only supports WFQ.
D . Inside a class queue， processing is always FIFO， except for the class-default queue.
-
Which three statements best describe HSRP configuration on Cisco Nexus switches？（）
A . In a vPC topology， the primary HSRP router will respond to ARP requests， but both HSRP routers will forward data traffic. No additional configuration is required.
B . In a vPC topology， the primary HSRP router will respond to ARP requests， but both HSRP routers will forward data traffic if the peer-gateway feature is enabled.
C . You can configure two overlapping HSRP groups to load share traffic from the connected hosts while providing the default router redundancy.
D . You can use the show standby command to verify HSRP operation and configuration.
E . If you remove the feature hsrp command， all relevant HSRP configuration information isalso removed.
-
Which two statements best describe Cisco IOS IP SLA？（）
A . only implemented between Cisco source and destination-capable devices
B . statistics provided by syslog， CLI， and SNMP
C . measures delay， jitter， packet loss， and voice quality
D . only monitors VoIP traffic flows
E . provides active monitoring
F . provides passive monitoring
-
Which two statements best describe the Cisco Unified Wireless Network？（）
A . The Cisco Unified Wireless Network provides the framework to segregate wired and wirelessnetworks to deliver the best security for companies that are deploying WLANs.
B . The Cisco Unified wireless Network provides the framework to integrate and extend wired andwireless networks to deliver the lowest-possible total cost or ownership for companies that aredeploying WLANs
C . The Cisco Unified Wireless Network extends "wireless awareness" into important elements ofthe network infrastructure， providing the same level of security for WLANs that organizations havecome to expect from their VPNs.
D . The Cisco unified Wireless Network extends "wireless awareness" into important elements ofthe network infrastructure， providing the same level of security scalability， reliability ease ofdeployment and management for WLANs that organizations have come to expect from their wiredLANs.
-
Which statement best describes the benefits of Cisco Integrated Services Routers？（）
A . In a single device，ISRs provide threat defense against attacks from hackers and viruses thatcan occur in the network.
B . In a single device，ISRs provide the framework to integrate and extend wired and wirelessnetworks.
C . In a single device ISRs provide concurrent security， voice， data， wireless and applicationoptimization services.
D . In a single device，ISRs provide the common fabric，functionality，and CLI across the network.
-
Which statement best describes what Cisco Smart Care Service provides?（）
A . bundled technical support and maintenance for Cisco networks
B . bundled, unlimited support with the purchase of any Cisco product
C . technical support, maintenance, and monitoring to Cisco networks
D . fee-based add-on support and tech-to-tech assistance for Cisco product
-
Which two statement best describes the Cisco Unified Wireless Network？ （）
A . The Cisco Unified Wireless Network provides the framework to segregate wired and wireless networks to deliver the best security for companies that are deploying WLANs
B . The Cisco Unified Wireless Network provides the framework to integrate and extend wired and wireless networks to deliver the lowest-possible total cost of ownership for companies that are deploying WLANs
C . The Cisco Unified Wireless Network extends wireless awareness into important elements of the network infrastructure， providing the same level of security for WLANs that organizations have come to expect from their VPNs
D . The Cisco Unified Wireless Network extends wireless awareness into important elements of the network infrastructure， providing the same level of security， sociability， reliability， ease of deployment， and management for WLANs that organizations have come to expect from their wired LAN
-
Which of these statements best describes VPLS?（）
A . Neither broadcast nor multicast traffic is ever flooded in VPLS.
B . Multicast traffic is flooded but broadcast traffic is not flooded in VPLS.
C . VPLS emulates an Ethernet switch, with eachEMS being analogous to a VLAN.
D . Because U-PE devices act as IEEE 802.1 devices, the VPLS core must use STP.
E . When the provider experiences an outage, IP re-routing restores PW connectivity and MAC relearning is needed.
-
Which two of these statements best describe fast secure roaming？ （Choose two.）（）
A . available only in autonomous APs
B . available in autonomous and lightweight APs
C . a feature of WDS in autonomous APs
D . a feature of WDS in lightweight APs
E . requires at least one AP and one Wireless LAN Services Module
-
Which statement best describes clustering in a small-business wireless network？（）
A . allows multiple access points to be connected wirelessly， without the need for a wired Ethernet network
B . replicates configuration parameters across access points in the cluster， while optimizing network performance
C . automatically configures wireless client devices via Wi-Fi Protected Setup
D . can get real-time traffic or bandwidth statistics from an access point within a cluster
-
B. Choose the best answer for each of the following statements or questions according to the text.1. What kind of people might become a role model for the writer?
-
The best statements about human error is（ ）
-
Which statement can be the best title for this article？
A．Dr. Randy Nelson and His New Findings.
B．Animals Resistance to Cancer.
C．Winter and Animals' Immune System.
D．A Light in the Cancer Darkness.
-
Text AI. Choose the best answer to each of the following questions according to what is stated or implied in the text.As regards the present marriage situation, which of the following statements is NO
A．Marriage nowadays is on the decline compared with that of generations ago
B．People now have higher expectations of their marriage
C．Despite the declining marriage situation, some couples still benefit a lot from good management
D．Increasing divorce rate is a sign of social progress
