Download Cisco.EnsurePass.400-251.v13-01.2017-04-13.1e.102q.vcex

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Exam CCIE Security Written Exam v5.1
Number 400-251
File Name Cisco.EnsurePass.400-251.v13-01.2017-04-13.1e.102q.vcex
Size 6.83 Mb
Posted April 13, 2017
Downloaded 5



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Demo Questions

Question 1

Which two OSPF network types support the concept of a designated router? (Choose two.)

  • A: broadcast
  • B: NBMA
  • C: point-to-multipoint
  • D: point-to-multipoint nonbroadcast
  • E: loopback

Correct Answer: AB




Question 2

Drag each IPS Signature Engine on the left to the matching description on the right

Correct Answer: Exam simulator is required




Question 3

Given the IPv4 address 10.10.100.16, which two address are valid IPv4-compatible IPv6 addresses? (Choose two)

  • A: 0:0:0:0:0:10:10:100:16
  • B: 0:0:10:10:10:16:0:0:0
  • C: 0:0:10:10:100:16:0:0:0
  • D: ::10:10:100:16
  • E: :::A:A:64:10

Correct Answer: AD




Question 4

What technology can you implement on your network to allow IPv4-dependent applications to  
work with IPv6- capable application?

  • A: NAT 6to4
  • B: DS-lite
  • C: NAT-PT
  • D: ISATAP
  • E: NAT64

Correct Answer: E




Question 5

Which three fields are part of the AH header? (Choose three)

  • A: Destination address
  • B: Protocol ID
  • C: Packet ICV
  • D: SPI identifying SA
  • E: Next header
  • F: Application port
  • G: Source address

Correct Answer: CDE




Question 6

What ASA feature can do use to restrict a user to a specific VPN group?

  • A: A webtypeACL
  • B: MPF
  • C: A VPN filter
  • D: Group-lock

Correct Answer: D




Question 7

Which two statements about SGT Exchange Protocol are true? (Choose two)

  • A: It propagates the IP-to-SGT binding table across network devices that do not have the ability to perform SGT tagging at Layer 2 to devices that support it
  • B: SXP runs on UDP port 64999
  • C: A connection is established between a "listener" and a "speaker"
  • D: SXP is only supported across two hops
  • E: SXPv2 introduces connection security via TLS

Correct Answer: AC




Question 8

Which three statements are true regarding RFC 5176 (Change of Authorization)? (Choose three.)

  • A: It defines a mechanism to allow a RADIUS server to initiate a communication inbound to a NAD.
  • B: It defines a wide variety of authorization actions, including "reauthenticate."
  • C: It defines the format for a Change of Authorization packet.
  • D: It defines a DM.
  • E: It specifies that TCP port 3799 be used for transport of Change of Authorization packets.

Correct Answer: ACD




Question 9

How does a wireless association flood attack create a DoS?

  • A: It sends a high-power RF pulse that can damage the internals of the AP
  • B: It spoofs disassociation frames from the access point.
  • C: It uses a brute force attack to crack the encryption.
  • D: It exhausts the access client association table.

Correct Answer: D




Question 10

What are two feature that can be used to drop incoming traffic with spoofed bogon address?  
(Choose two)

  • A: Unicast RPF
  • B: ingress ACLs 
  • C: flexible ACLs
  • D: egress ACLs
  • E: reflexive ACLs
  • F: Source Specific Multicast

Correct Answer: AB










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