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Security exam sample questions, which can make sure
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400-251 CCIE Security Exam Info
Exam Number
400-251 CCIE Security
Associated Certifications CCIE Security
Duration
120 minutes (90 - 110 questions)
Available Languages
English
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400-251 CCIE Security Exam Topics
1.0 Perimeter Security and Intrusion Prevention 21%
2.0 Advanced Threat Protection and Content Security
17%
3.0 Secure Connectivity and Segmentation 17%
4.0 Identity Management, Information Exchange, and
Access Control 22%
5.0 Infrastructure Security, Virtualization, and
Automation 13%
6.0 Evolving Technologies 10%
Share 400-251 CCIE Security Sample Questions
Which three statements about the RSA algorithm are true?
(Choose three.)
A. The RSA algorithm provides encryption but not authentication.
B. The RSA algorithm provides authentication but not encryption.
C. The RSA algorithm creates a pair of public-private keys that are
shared by entities that perform encryption.
D. The private key is never sent across after it is generated.
E. The public key is used to decrypt the message that was
encrypted by the private key.
F. The private key is used to decrypt the message that was
encrypted by the public key.
Answer: C, D, F
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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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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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Endexam Cisco 400-251 CCIE Security Exam Sample Questions