400-251 Dumps With 100% Passing Guarantee

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400-251 Exam Questions Answers
Question 1 Which three statements about the
Cisco IPS sensor are true? (Choose three.) A. You
cannot pair a VLAN with itself. B. For a given
sensing interface, an interface used in a VLAN
pair can be a member of another inline interface
pair. C. For a given sensing interface, a VLAN
can be a member of only one inline VLAN pair,
however, a given VLAN can be a member of an
inline VLAN pair on more than one sensing
interface. D. The order in which you specify the
VLANs in a inline pair is significant. E. A
sensing interface in inline VLAN pair mode can
have from 1 to 255 inline VLAN pairs. Answer A,
C, E
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400-251 Exam Questions Answers
Question 2 According ISO27001 ISMS, which of the
following are mandatory documents? (Choose 4) A.
ISMS Policy B. Corrective Action Procedure C. IS
Procedures D. Risk Assessment Reports E. Complete
Inventory of all information assets Answer A, B,
C, D
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400-251 Exam Questions Answers
Question 3 Which two statements describe the
Cisco TrustSec system correctly? (Choose
two.) A. The Cisco TrustSec system is a partner
program, where Cisco certifies third-party
security products as extensions to the secure
infrastructure. B. The Cisco TrustSec system is
an approach to certifying multimedia and
collaboration applications as secure. C. The
Cisco TrustSec system is an Advanced Network
Access Control System that leverages enforcement
intelligence in the network infrastructure. D.
The Cisco TrustSec system tests and certifies all
products and product versions that make up the
system as working together in a validated
manner. Answer C, D
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400-251 Exam Questions Answers
Question 4 Which three attributes may be
configured as part of the Common Tasks panel of
an authorization profile in the Cisco ISE
solution? (Choose three.) A. VLAN B. voice
VLAN C. dACL name D. voice domain permission E.
SGT Answer A, C, D
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400-251 Exam Questions Answers

• Question 5
• Which three statements about Cisco Flexible
  NetFlow are true?
• (Choose three.)
• The packet information used to create flows is
  not configurable by the user.
• B. It supports IPv4 and IPv6 packet fields.
• C. It tracks all fields of an IPv4 header as well
  as sections of the data
• payload.
• D. It uses two types of flow cache, normal and
  permanent.
• E. It can be a useful tool in monitoring the
  network for attacks.
• Answer B, C, E

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400-251 Exam Questions Answers
Question 6 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. Answer A, C, D
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400-251 Exam Questions Answers

• Question 7
• Which three statements are true regarding
  Security Group Tags? (Choose three.)
• When using the Cisco ISE solution, the Security
  Group Tag gets defined as
• a separate authorization result.
• B. When using the Cisco ISE solution, the
  Security Group Tag gets defined as
• part of a standard authorization profile.
• C. Security Group Tags are a supported network
  authorization result using Cisco ACS 5.x.
• D. Security Group Tags are a supported network
  authorization result for 802.1X, MAC
  Authentication Bypass, and WebAuth methods of
  authentication.
• E. A Security Group Tag is a variable length
  string that is returned as an
• authorization result.
• Answer A, C, D

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400-251 Exam Questions Answers
Question 8 Which two certificate enrollment
methods can be completed without an RA and
require no direct connection to a CA by the end
entity? (Choose two.) A. SCEP B. TFTP C. manual
cut and paste D. enrollment profile with direct
HTTP E. PKCS12 import/export Answer C, E
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400-251 Exam Questions Answers
Question 9 Which two statements about the AES
algorithm are true? (Choose two) A. The AES
algorithm is an asymmetric block cipher. B. The
AES algorithm operates on a 128-bits block. C.
The AES algorithm uses a fixed length-key of 128
bits. D. The AES algorithm does not give any
advantage over 3DES due to the same key
length. E. The AES algorithm consist of four
functions. Three functions provide
confusion-diffusion and one provides
encryption. Answer B, E
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400-251 Exam Questions Answers
Question 10 Which two statements about the RC4
algorithm are true? (Choose two.) A. The RC4
algorithm is an asymmetric key algorithm. B. The
RC4 algorithm is a symmetric key algorithm. C.
The RC4 algorithm is slower in computation than
DES. D. The RC4 algorithm is used with wireless
encryption protocols. E. The RC4 algorithm uses
fixed-length keys. Answer B, D
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