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1.|2017 NEW 400-251 Written Exam Dumps (PDF & VCE) 1106Q&As Download: 2.|2017 NEW 400-251 Written Exam Questions & Answers: QUESTION 86 A. IANA is a department that is operated by the IETF Answer: BCD QUESTION 87 A. LDP Answer: B QUESTION 88 A. The router sends PIM messages only to other routers on the same LAN. Answer: E QUESTION 89 A. To protect the internal network from IP spoofing attacks. Answer: D QUESTION 90 A. confidentiality and integrity of customer records and credit card information Answer: BD QUESTION 91 A. Increase the ICMP Unreachable massage rate limit interval. Answer: AE QUESTION 92 A. AES Answer: B QUESTION 93 A. crypto key export rsa pki.cisco.com pern url flash: 3des CiscoPKI Answer: E QUESTION 94 A. Cisco Security MARS Answer: C QUESTION 95 A. Access-list 10 deny 192.168.1.2.0.0.0.0 Answer: D QUESTION 96 A. SCEP Answer: CE QUESTION 97 A. Length of the hash value varies with the length of the message that is being hashed. Answer: BE QUESTION 98 A. It can run as more than one instance. Answer: ADE QUESTION 99 A. The PFS groups are mismatched. Answer: B QUESTION 100 A. A DNS server Answer: AC 1.|2017 NEW 400-251 Exam Dumps (PDF & VCE) 1106Q&As Download: 2.|2017 NEW 400-251 Study Guide Video:
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Which three statements about the IANA are true? (Choose three.)
B. IANA oversees global IP address allocation.
C. IANA managed the root zone in the DNS.
D. IANA is administered by the ICANN.
E. IANA defines URI schemes for use on the Internet.
A cloud service provider is designing a large multilenant data center to support thousands of tenants. The provider is concerned about the scalability of the Layer 2 network and providing Layer 2 segmentation to potentially thousands of tenants. Which Layer 2 technology is best suited in this scenario?
B. VXLAN
C. VRF
D. Extended VLAN ranges
Refer to the exhibit. Which effect of this configuratioin is true?
B. The router sends PIM messages, but it rejects any PIM message it receives.
C. The router acts as a stub multicast router for the EIGRP routing protocol.
D. The router accepts all PIM control messages.
E. The router acts as the DR and DF for all bidir-PIM group ranges.
What is the purpose of enabling the IP option selective Drop feature on your network routers?
B. To drop IP fragmented packets.
C. To drop packet with a TTL value of Zero.
D. To protect the network from DoS attacks.
Which two answers describe provisions of the SOX Act and its international counterpart Acts? (Choose two.)
B. accountability in the event of corporate fraud
C. financial information handled by entities such as banks, and mortgage and insurance brokers
D. assurance of the accuracy of financial records
E. US Federal government information
F. security standards that protect healthcare patient data
What are two method of preventing DoS attacks on your network? (Choose two)
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
What protocol does SMTPS use to secure SMTP connections?
B. TLS
C. Telnet
D. SSH
Refer to the exhibit, you executed the show crypto key mypubkeyrsa command to verify that the RSA key is protected and it generated the given output.
What command must you have entered to protect the key?
B. crypto key decrypt rsa name pki.cisco.com passphrase CiscoPKI
C. crypto key import rsa pki.cisco.com pern url nvram: CiscoPKI
D. crypto key zeroize rsa CiscoPKI
E. crypto key lock rsa name pki.cisco.com passphrase CiscoPKI
All of these Cisco security products provide event correlation capabilities excepts which one?
B. Cisco Guard/Detector
C. Cisco ASA adaptive security appliance
D. Cisco IPS
E. Cisco Security Agent.
Refer to the exhibit, which configuration prevents R2 from become a PIM neighbor with R1?
!
Interface gi0/0
Ippim neighbor-filter 1
B. Access-list 10 deny 192.168.1.2.0.0.0.0
!
Interface gi0/0
Ipigmp access-group 10
C. Access-list 10 deny 192.168.1.2.0.0.0.0
!
Interface gi0/0
Ippimneighbour-filter 10
D. Access-list 10 permit 192.168.1.2.0.0.0.0
!
Interface gi0/0
Ippim neighbor-filter 10
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.)
B. TFTP
C. manual cut and paste
D. enrollment profile with direct HTTP
E. PKCS#12 import/export
Which two statements about the MD5 Hash are true? (Choose two.)
B. Every unique message has a unique hash value.
C. Its mathematically possible to find a pair of message that yield the same hash value.
D. MD5 always yields a different value for the same message if repeatedly hashed.
E. The hash value cannot be used to discover the message.
Which three statement about VRF-Aware Cisco Firewall are true? (Choose three)
B. It supports both global and per-VRF commands and DoS parameters.
C. It can support VPN networks with overlapping address ranges without NAT.
D. It enables service providers to implement firewalls on PE devices.
E. It can generate syslog massages that are visible only to individual VPNs.
F. It enables service providers to deploy firewalls on customer devices.
Refer to the exhibit. What is the meaning of the given error message?
B. The pre-shared keys are mismatched.
C. The mirrored crypto ACLs are mismatched.
D. IKE is disabled on the remote peer.
Which two value must you configure on the cisco ASA firewall to support FQDN ACL ? (Choose two)
B. A Service policy
C. An FQDN object
D. A Class map
E. A services object
F. A policy map
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