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Which three security concerns can be addressed by a tunnel mode IPsec VPN secured by ESP?（） (Choose three.)
- A、data integrity
- B、data confidentiality
- C、data authentication
- D、outer IP header confidentiality
- E、outer IP header authentication
参考答案
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Which fields are included in the TCP header? (Choose three).A. Source PortB. Acknowledgement NumberC. Request NumberD. Destination AddressE. WindowF. Data
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Which three security concerns can be addressed by a tunnel mode IPsec VPN secured by ESP?() (Choose three.)
A. data integrityB. data confidentialityC. data authenticationD. outer IP header confidentialityE. outer IP header authentication
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When an SRX series device receives an ESP packet, what happens?()
A. If the destination address of the outer IP header of the ESP packet matches the IP address of the ingress interface, it willB. If the destination IP address in the outer IP header of ESP does not match the IP address of the ingress interface, it willC. If the destination address of the outer IP header of the ESP packet matches the IP address of the ingress interface, based packet.D. If the destination address of the outer IP header of the ESP packet matches the IP address of the ingress interface, based of inner header, it will decrypt the packet.
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Which three security concerns can be addressed by a tunnel mode IPsec VPN secured by AH?() (Choose three.)
A. data integrityB. data confidentialityC. data authenticationD. outer IP header confidentialityE. outer IP header authentication
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Which component of VPN technology ensures that data can be read only by its intended recipient?()
A. data integrityB. encryptionC. key exchangeD. authentication
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IPsec, also known as the internet Protocol ( ) , defines the architecture for security services for IP network traffic IPsec describes the framework for providing security a the IP layer, as well as the suite of protocols designed to provide that security: through_ ( )_ and encryption of IP network packets. IPec can be used 10 protect network data, for example, by setting up circuits using IPsec ( ), in which all data being sent between two endpoints is encrypted, as with a Virtual (请作答此空) Network connection ;for encrypting application layer data ;and for providing security for routers sending routing data across the public internet. Internet traffic can also be secured from host to host without the use of IPsec, for example by encryption at the ( ) layer with HTTP Secure (TTPS)or an the transport layer wit the Transport Layer Security (TLS)protocol.A.pubic]
B.private]
C.personal
D.proper
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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 option ensures that data is not modified in transit？（）A、AuthorizationB、ConfidentialityC、AuthenticationD、Integrity
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IPSec VPN is a widely-acknowledged solution for enterprise network. Which three IPsec VPNstatements are true？（）A、IKE keepalives are unidirectional and sent every ten secondsB、IPsec uses the Encapsulating Security Protocol （ESP） or the Authentication Header （AH）protocol for exchanging keysC、To establish IKE SA, main mode utilizes six packets while aggressive mode utilizes only threepacketsD、IKE uses the Diffie-Hellman algorithm to generate symmetrical keys to be used by IPsec peers
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Which QoS preclassification option will require the use of the qos pre-classify command for the VPN traffic？ （）A、VPN traffic needs to be classified based on the Layer2 header informationB、VPN traffic needs to be classified based on the IP precedence or DSCPC、VPN traffic needs to be classified based on IP flow or Layer 3 information， such as source and destination IP addressD、VPN traffic with Authentication Header （AH） needs to preserve the ToS byte
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Which component of VPN technology ensures that data can be read only by its intended recipient?（）A、data integrityB、encryptionC、key exchangeD、authentication
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What is true about Quality of Service （QoS） for VPNs？（）A、QoS preclassification is only supported on generic routing encapsulation （GRE） and IPsec VPNsB、QoS preclassification is not required in Layer 2 Tunneling Protocol （L2TP）， Layer2 Forwarding （L2F）， and Point-to-Point Tunneling Protocol （PPTP） VPNsC、QoS preclassification is supported on IPsec AH VPNs， but not on IPsec ESP VPNsD、the QoS-for-VPNs feature （QoS preclassification） is designed for VPN transport interfacesE、with IPsec tunnel mode， the type of service （ToS） byte value is copied automatically from the original IP header to the tunnel header
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Routers can be used to integrate a variety of services. Which two common services are often specified by businesses？（）A、 Mitigation and ResponseB、 Fibre Channel over EthernetC、 IP communicationsD、 Data Center VirtualizationE、 VPN security
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Which three JUNOS software features allow for increased security on your network？（）A、firewall filtersB、data encryptionC、routing protocol authenticationD、support for BGP path mtu discoveryE、automatic discovery for IPSEC neighbors
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Which three security concerns can be addressed by a tunnel mode IPsec VPN secured by AH?（） (Choose three.)A、data integrityB、data confidentialityC、data authenticationD、outer IP header confidentialityE、outer IP header authentication
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Which three security concerns can be addressed by a tunnel mode IPsec VPN secured by ESP？（）A、data integrityB、data confidentialityC、data authenticationD、outer IP header confidentialityE、outer IP header authentication
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Which three security concerns can be addressed by a tunnel mode IPsec VPN secured by AH？（）A、data integrityB、data confidentialityC、data authenticationD、outer IP header confidentialityE、outer IP header authentication
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Which three firewall user authentication objects can be referenced in a security policy? （）(Choose three.)A、access profileB、client groupC、clientD、default profileE、external
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When an SRX series device receives an ESP packet, what happens?（）A、If the destination address of the outer IP header of the ESP packet matches the IP address of the ingress interface, it willB、If the destination IP address in the outer IP header of ESP does not match the IP address of the ingress interface, it willC、If the destination address of the outer IP header of the ESP packet matches the IP address of the ingress interface, based packet.D、If the destination address of the outer IP header of the ESP packet matches the IP address of the ingress interface, based of inner header, it will decrypt the packet.
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You need to design a method of communication between the IT and HR departments. Your solution must meet business requirements. What should you do？（）A、Design a custom IPSec policy to implement Encapsulating Security Payload （ESP） for all IP traffic Design the IPSec policy to use certificate-based authentication between the two departments’ computersB、Design a customer IPSec policy to implement Authentication Header （AH） for all IP traffic. Desing the IPSec policy to use preshared key authentication between the two departments’ computersC、Design a customer IPSec policy to implement Encapsulating Payload （ESP） for all IP traffic. Desing the IPSec policy to use preshared key authentication between the two departments’ computersD、Design a customer IPSec policy to implement Authentication Header （AH） for all IP traffic. Desing the IPSec policy to use certificate-based authentication between the two departments’ computers
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多选题Which three security concerns can be addressed by a tunnel mode IPsec VPN secured by ESP?（） (Choose three.)Adata integrityBdata confidentialityCdata authenticationDouter IP header confidentialityEouter IP header authentication
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多选题Which three firewall user authentication objects can be referenced in a security policy? （）(Choose three.)Aaccess profileBclient groupCclientDdefault profileEexternal
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多选题Which three security concerns can be addressed by a tunnel mode IPsec VPN secured by AH?（） (Choose three.)Adata integrityBdata confidentialityCdata authenticationDouter IP header confidentialityEouter IP header authentication
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 security concerns can be addressed by a tunnel mode IPsec VPN secured by AH？（）Adata integrityBdata confidentialityCdata authenticationDouter IP header confidentialityEouter IP header authentication
考题
多选题Which three security concerns can be addressed by a tunnel mode IPsec VPN secured by ESP？（）Adata integrityBdata confidentialityCdata authenticationDouter IP header confidentialityEouter IP header authentication
考题
多选题IPSec VPN is a widely-acknowledged solution for enterprise network. Which three IPsec VPNstatements are true？（）AIKE keepalives are unidirectional and sent every ten secondsBIPsec uses the Encapsulating Security Protocol （ESP） or the Authentication Header （AH）protocol for exchanging keysCTo establish IKE SA, main mode utilizes six packets while aggressive mode utilizes only threepacketsDIKE uses the Diffie-Hellman algorithm to generate symmetrical keys to be used by IPsec peers
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