2019/April Braindump2go 400-251 Exam Dumps with PDF and VCE New Updated Today! Following are some new 400-251 Real Exam Questions:
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New Question
Which two statements about the MD5 Hash are true? (Choose two.)
A. Length of the hash value varies with the length of the message that is being hashed.
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.
Answer: BE
New Question
Which three statement about VRF-Aware Cisco Firewall are true? (Choose three)
A. It can run as more than one instance.
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.
Answer: ADE
New Question
Refer to the exhibit. What is the meaning of the given error message?
A. The PFS groups are mismatched.
B. The pre-shared keys are mismatched.
C. The mirrored crypto ACLs are mismatched.
D. IKE is disabled on the remote peer.
Answer: B
New Question
Which two value must you configure on the cisco ASA firewall to support FQDN ACL ? (Choose two)
A. A DNS server
B. A Service policy
C. An FQDN object
D. A Class map
E. A services object
F. A policy map
Answer: AC
New Question
Refer to the exhibit. Which effect of this configuration is true?
A. Host_1 learns about R2 and only and prefers R2 as its default router
B. Host_1 selects R2 as its default router and load balances between R2 and R3
C. Host_1 learns about R2 and R3 only and prefers R3 as its default router
D. Host_1 learns about R1,R2 and R3 and load balances between them
E. Host_1 learns about R1, R2 and R3 and prefers R2 as its default router
Answer: E
New Question
Which statement regarding the routing functions of the Cisco ASA is true running software version 9.2?
A. In a failover pair of ASAs, the standby firewall establishes a peer relationship with OSPF neighbors
B. The ASA supports policy-based routing with route maps
C. Routes to the Null0 interface cannot be configured to black-hole traffic
D. The translations table cannot override the routing table for new connections
Answer: C
New Question
Which two statement about router Advertisement message are true? (Choose two)
A. Local link prefixes are shared automatically.
B. Each prefix included in the advertisement carries lifetime information f Or that prefix.
C. Massage are sent to the miscast address FF02::1
D. It support a configurable number of retransmission attempts for neighbor solicitation massage.
E. Flag setting are shared in the massage and retransmitted on the link.
F. Router solicitation massage are sent in response to router advertisement massage
Answer: AE
Explanation:
http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipv6_basic/configuration/xe-3s/ip6b-xe-3s-book/ip6-neighb-disc-xe.html#GUID-1C16B07D-4464-4506-9E0B-DA6AA7743E83
New Question
Refer to the exhibit. Which effect of this configuration is true?
A. NUD retransmits 1000 Neighbor solicitation messages every 4 hours and 4 minutes.
B. NUD retransmits Neighbor Solicitation messages after 4, 16, 64 and 256 seconds.
C. NUD retransmits Neighbor Solicitation messages every 4 seconds.
D. NUD retransmits unsolicited Neighbor advertisements messages every 4 hours.
E. NUD retransmits f our Neighbor Solicitation messages every 1000 seconds.
F. NUD retransmits Neighbor Solicitation messages after 1, 4, 16, and 64 seconds.
Answer: E
New Question
What are two features of cisco IOS that can help mitigate Blaster worm attack on RPC ports? (Choose two)
A. FPM
B. DCAR
C. NBAR
D. IP source Guard
E. URPF
F. Dynamic ARP inspection
Answer: DE
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