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QUESTION 2

Which type of header attack is detected by Cisco ASA basic threat detection?

A. Connection limit exceeded.

B. Denial by access list.

C. Failed application inspection.

D. Bad packet format.

Correct Answer: D

QUESTION 4

Which WEP configuration can be exploited by a weak IV attack?

A. When the static WEP password has been stored without encryption.

B. When a per-packet WEP key is in use.

C. When a 64-bit key is in use.

D. When the static WEP password has been given away.

E. When a 40-bit key is in use.

F. When the same WEP key is used to create every packet.

Correct Answer: E

QUESTION 5

Which two statements about Botnet Traffic Filter snooping are true?(Choose two)

A. It requires DNS packet inspection to be enabled to filter domain names in the dynamic database.

B. It requires the Cisco ASA DNS server to perform DNS lookups.

C. It can inspect both IPV4 and IPV6 traffic.

D. It can log and block suspicious connections from previously unknown bad domains and IP addresses.

E. It checks inbound traffic only.

F. It checks inbound and outbound traffic.

Correct Answer: A

QUESTION 6

Which three statements about SXP are true?(Choose three)

A. It resides in the control plane, where connections can be initiated from a listener.

B. Packets can be tagged with SGTs only with hardware support.

C. Each VRF supports only one CTS-SXP connection.

D. To enable an access device to use IP device tracking to learn source device IP addresses,DHCP snooping must be configured.

E. The SGA ZBPF uses the SGT to apply forwarding decisions.

F. SeparateVRFs require different CTS-SXP peers, but they can use the same source IP addresses.

Correct Answer: ABC

QUESTION 7

Which file extensions are supported on the Firesight Management Center 6.1(3.1) file policies that can be analyzed dynamically using the Threat Grid Sandbox integration?

A. MSEXE, MSOLE2, NEW-OFFICE,PDF;

B. DOCX, WAV,XLS,TXT

C. TXT, MSOLE2, WAV, PDF.

D. DOC, MSOLE2, XML, PF.

Correct Answer: A

400-251 Practice Test400-251 Study Guide400-251 Braindumps

QUESTION 8

Refe to exhibit

You applied this CPN cluster configuration to a Cisco ASA and the cluster failed to form. How do you edit the configuration to correct the problem?

A. Define the maximum allowable number of VPN connections.

B. Define the master/slave relation ship.

C. Configure the cluster IP address.

D. Enable load balancing.

Correct Answer: C

QUESTION 9

Which effect of the crypto pki authenticate commend is true?

A. It sets the certificate enrollment method.

B. It retrievers and authentication a CA certificate.

C. It configures a CA trust point.

D. It displays the current CA certificate.

Correct Answer: B

QUESTION 10

Which effect of the ip nhrp map multicast dynamic command is true?

A. It configures a hub router to automatically add spoke routers to multicast replication list of the hub.

B. It enables a GRE tunnel to operate without the IPsec peer or crypto ACLs.

C. It enables a GRE tunnel to dynamically update the routing tables on the devices at each end of the tunnel.

D. It configures a hub router to reflect the routes it learns from a spoke back to other spoke back to other spokes through the same interface.

Correct Answer: A

QUESTION 11

Which statement about VRF-aware GDOI group members is true?

A. IPsec is used only to secure data traffic.

B. The GM cannot route control traffic through the same VRF as data traffic.

C. Multiple VRFs are used to separate control traffic and data traffic.

D. Registration traffic and rekey traffic must operate on different on different VRFs.

Correct Answer: A

QUESTION 12

Which two statements about Cisco URL Filtering on Cisco IOS Software are true?(Choose two)

A. It supports Websense and N2H2 filtering at the same time.

B. It supports local URL lists and third-party URL filtering servers.

C. By default, it uses ports 80 and 22.

D. It supports HTTP and HTTP traffic.

E. By default, it allows all URLs when the connection to the filtering server is down.

F. It requires minimal CPU time.

Correct Answer: AB

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