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400-251 Exam Dumps

Cisco CCIE Security 400-251 Dumps With VCE and PDF Download (Question 151 – Question 180)

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QUESTION 151
Which two statements about the SHA-1 algorithm are true? (Choose two.)

A.    The SHA-1 algorithm is considered secure because it always produces a unique hash for the same message.
B.    The SHA-1 algorithm takes input message of any length and produces 160-bit hash output.
C.    The SHA-1 algorithm is considered secure because it is possible to find a message from its hash.
D.    The purpose of the SHA-1 algorithm is to provide data confidentiality.
E.    The purpose of the SHA-1 algorithm is to provide data authenticity.

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QUESTION 121
The computer at 10.10.10.4 on your network has been infected by a botnet that directs traffic to a malware site at 168.65.201.120. Assuming that filtering will be performed on a Cisco ASA. What command can you use to block all current and future connections from the infected host?

A.    ip access-list extended BLOCK_BOT_OUT deny ip any host 10.10.10.4
B.    shun 10.10.10.4 168.65.201.120 6000 80
C.    ip access-list extended BLOCK_BOT_OUT deny ip host 10.10.10.4 host 168.65.201.120
D.    ip access-list extended BLOCK_BOT_OUT deny ip host 168.65.201.120 host 10.10.10.4
E.    shun 168.65.201.120 10.10.10.4 6000 80

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QUESTION 91
What are two method of preventing DoS attacks on your network? (Choose two.)

A.    Increase the ICMP Unreachable massage rate limit interval
B.    Implement shaping on the perimeter router
C.    Disable the ICMP Unreachable response on the loopback and Null0 interfaces
D.    Decrees the ICMP Unreachable massage interval
E.    Implement CWBQ on the perimeter router

PassLeader 400-251 Exam Dumps Collection with VCE and PDF (Question 61 – Question 90)

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QUESTION 61
Which command can you enter on the Cisco ASA to disable SSH?

A.    Crypto key generate ecdsa label
B.    Crypto key generate rsa usage-keys noconfirm
C.    Crypto keys generate rsa general-keys modulus 768
D.    Crypto keys generate ecdsa noconfirm
E.    Crypto keys zeroize rsa noconfirm

PassLeader Valid 400-251 Dumps with VCE and PDF (Question 31 – Question 60)

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QUESTION 31
Refer to the exhibit. What is the effect of the given command sequence?
passleader-400-251-dumps-311

A.    The HTTP server and client will negotiate the cipher suite encryption parameters.
B.    The server will accept secure HTTP connections from clients with signed security certificates.
C.    The client profile will match the authorization profile defined in the AAA server.
D.    The clients are added to the cipher suite’s profile.
E.    The server will accept secure HTTP connections form clients defined in the AAA server.

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QUESTION 1
According to OWASP guidelines, what is the recommended method to prevent cross-site request forgery?

A.    Allow only POST requests.
B.    Mark all cookies as HTTP only.
C.    Use per-session challenge tokens in links within your web application.
D.    Always use the “secure” attribute for cookies.
E.    Require strong passwords.

[8-Feb-2017] New 400-251 Dumps with VCE and PDF from PassLeader (Update Questions)

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NEW QUESTION 1
Drag and drop the step in the Cisco ASA packet processing flow on the left into the correct order of operations on the right.

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