Online Access Free 640-554 Exam Questions

Which option describes the purpose of Diffie-Hellman?

• A.used for asymmetric public key encryption
• B.used to establish a symmetric shared key via a public key exchange process
• C.used to verify the identity of the peer
• D.used between the initiator and the responder to establish a basic security policy

Refer to the exhibit.

Based on the show policy-map type inspect zone-pair session command output shown, what can be determined about this Cisco IOS zone based firewall policy?

• A.Stateful packet inspection will be applied only to HTTP packets that also match ACL 110.
• B.All non-HTTP traffic will be permitted to pass as long as it matches ACL 110.
• C.This is an outbound policy (applied to traffic sourced from the more secured zone destined to the less secured zone).
• D.All non-HTTP traffic will be inspected.
• E.All packets will be dropped since the class-default traffic class is matching all traffic.
• F.This is an inbound policy (applied to traffic sourced from the less secured zone destined to the more secured zone).

In a brute-force attack, what percentage of the keyspace must an attacker generally search through until he or she finds the key that decrypts the data?

• A.Roughly 75 percent
• B.Roughly 50 percent
• C.Roughly 10 percent
• D.Roughly 66 percent

Which statement about identity NAT is true?

• A.It is a dynamic NAT configuration that translates a real IP address to a mapped IP address.
• B.It is a dynamic NAT configuration that translates the real IP address on the ingress interface to the same IP address on the egress interface.
• C.It is a static NAT configuration that translates the real IP address on the ingress interface to the same IP address on the egress interface.
• D.It is a static NAT configuration that translates a real IP address to a mapped IP address.

When a company puts a security policy in place, what is the effect on the company's business?

• A.minimizing liability
• B.maximizing compliance
• C.minimizing total cost of ownership
• D.minimizing risk