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单选题
Which IOS QoS enhancement was created to address scalability and bandwidth guaranteeissues？（）
A
DiffServ
B
IntServ
C
RSVP
D
WFQ
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Which of the following correctly describe steps in the OSI data encapsulation process?()
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Which IOS QoS enhancement was created to address scalability and bandwidth guarantee issues?()
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Which Cisco IOS diagnostics command can disrupt the operation of a router under high－load conditions?()
A. show running-configB. show processes cpuC. debug allD. logging host ip address
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Which IOS QoS enhancement was created to address scalability and bandwidth guaranteeissues？（）A、 DiffServB、 IntServC、 RSVPD、 WFQ
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What does qos pre-classify provides inregardto implementing QoS over GRE/IPSec VPN tunnels？（）A、 enables IOS to copy the ToS field from the inner （original） IPheader to theouter tunnel IP headerB、 enables IOS to make a copy of the inner （original） IP header and to run a QoS classification before encryption， based on fields in the inner IP header.C、 enables IOS to classify packets based on the ToS field in the inner （original） IP headerD、 enables IOS to classify packets based on the ToS field in the outer tunnel IP headerE、 enables the IOS classification engine to only see a single encrypted and tunneledflow to reduce classification complexity
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Which three characteristics of the traffic flow are taken into consideration when the QoS-for-VPNs feature （QoS pre-classify） provides packet classification and applies appropriate QoS service on tunnel interfaces？（）A、IP precedence bitsB、DSCP bitsC、original port numbersD、DE bitsE、source IP addressF、destination IP address
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Which three statements about IOS Firewall configurations are true？（）A、The IP inspection rule can be applied in the inbound direction on the secured interface.B、The IP inspection rule can be applied in the outbound direction on the unsecured interface.C、The ACL applied in the outbound direction on the unsecured interface should be an extended ACL.D、The ACL applied in the inbound direction on the unsecured interface should be an extended ACL.E、For temporary openings to be created dynamically by Cisco IOS Firewall，the access-list for thereturning traffic must be a standard ACL.F、For temporary openings to be created dynamically by Cisco IOS Firewall，the IP inspection rule must be applied to the secured interface.
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Which IOS QoS mechanism is used strictly to rate limit traffic destinedto the router itself？（）A、 Class-Based PolicingB、 Control Plane PolicingC、 Dual-Rate PolicierD、 Single-Rate PolicierE、 Class-BasedTraffic Shaper
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Which three statements accurately describe IOS Firewall configurations？（）A、The IP inspection rule can be applied in the inbound direction on the secured interfaceB、The IP inspection rule can be applied in the outbound direction on the unsecured interfaceC、The ACL applied in the inbound direction on the unsecured interface should be an extendedACL.D、For temporary openings to be created dynamically by Cisco IOS Firewall， the access-list for thereturning traffic must be a standard ACL
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Which IOS QoS enhancement was created to address scalability and bandwidth guarantee issues?（）A、DiffServB、IntServC、RSVPD、WFQ
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Which of the following are true regarding a network using a subnet mask of 255.255.248.0?（）A、It corresponds to a Class A address with 13 bits borrowed.B、It corresponds to a Class B address with 4 bits borrowed.C、The network address of the last subnet will have 248 in the 3rd octet.D、The first 21 bits make the host portion of the address.E、This subnet mask allows for 16 total subnets to be created.F、The subnetwork numbers will be in multiples of 8.
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The Cisco NAC Appliance is able to check which three items before allowing network access?（）A、client antivirus software stateB、personal firewall settingsC、wireless cell bandwidth availabilityD、IOS versions for routers and switchesE、appropriate client patch management levelF、appropriate QoS settings for client application Answer:
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In a DNS environment， the zone file that maps hostnames to IP address （sometimes called the named.hosts file）， is created on which of the following servers？（）A、CacheB、PrimaryC、SecondaryD、Primary and secondary
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多选题Which of the following correctly describe steps in the OSI data encapsulation process?（）ATransport layer divides a data stream into segments adds reliability flow control informationBData link layer adds physical source destination address an FCS to the segmentCPackets are created when the network layer encapsulate a frame with source destination host address protocol related control informationDPackets are created when the network layers adds layers 3 address control information to a segmentEThe presentation layer translated bits into bits into voltages for transmission across the physical link
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多选题Refer to the exhibit. Which three statements are true about trust boundaries in the campus network？ （Choose three.）（）AA device is trusted if it correctly classifies packets.BA device is trusted if it correctly declassifies packets.CThe outermost trusted devices represent the trust boundary.DClassification and marking occur using 802.1ab QoS bits before reaching the trust boundary.ENetwork trust boundaries are automatically configured in IOS version 12.3 and later.FFor scalability， classification should be done as close to the edge as possible.
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考题
多选题Which three statements about IOS Firewall configurations are true？（）AThe IP inspection rule can be applied in the inbound direction on the secured interface.BThe IP inspection rule can be applied in the outbound direction on the unsecured interface.CThe ACL applied in the outbound direction on the unsecured interface should be an extended ACL.DThe ACL applied in the inbound direction on the unsecured interface should be an extended ACL.EFor temporary openings to be created dynamically by Cisco IOS Firewall，the access-list for thereturning traffic must be a standard ACL.FFor temporary openings to be created dynamically by Cisco IOS Firewall，the IP inspection rule must be applied to the secured interface.
考题
单选题What does qos pre-classify provides inregardto implementing QoS over GRE/IPSec VPN tunnels？（）A
enables IOS to copy the ToS field from the inner （original） IPheader to theouter tunnel IP headerB
enables IOS to make a copy of the inner （original） IP header and to run a QoS classification before encryption， based on fields in the inner IP header.C
enables IOS to classify packets based on the ToS field in the inner （original） IP headerD
enables IOS to classify packets based on the ToS field in the outer tunnel IP headerE
enables the IOS classification engine to only see a single encrypted and tunneledflow to reduce classification complexity
考题
多选题Which three characteristics of the traffic flow are taken into consideration when the QoS-for-VPNs feature （QoS pre-classify） provides packet classification and applies appropriate QoS service on tunnel interfaces？（）AIP precedence bitsBDSCP bitsCoriginal port numbersDDE bitsEsource IP addressFdestination IP address
考题
单选题Which IOS QoS mechanism is used strictly to rate limit traffic destinedto the router itself？（）A
Class-Based PolicingB
Control Plane PolicingC
Dual-Rate PolicierD
Single-Rate PolicierE
Class-BasedTraffic Shaper
考题
多选题Which three statements accurately describe IOS Firewall configurations？（）AThe IP inspection rule can be applied in the inbound direction on the secured interfaceBThe IP inspection rule can be applied in the outbound direction on the unsecured interfaceCThe ACL applied in the inbound direction on the unsecured interface should be an extendedACL.DFor temporary openings to be created dynamically by Cisco IOS Firewall， the access-list for thereturning traffic must be a standard ACL
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