A. The sender of the message.
B. The receipient of the message.
C. The sender’s administrator who provides the sender with the PGP program.
D. A third party that belongs to what’s often known as "web of trust"， that can verify the relationship between the user and the key.
E. The vendor of the PGP program.
您可能感興趣的試卷
你可能感興趣的試題
A. tunnel source
B. tunnel destination
C. tunnel key
D. ip address
E. tunnelvrf
A. A DH key exchange is an algorithm that utilizes asymmetric cryptographic keys.
B. The DH key exchange is used to establish a shared secret over an insecure medium during an IPSec phase 1 exchange.
C. The DH exchange is susceptible to man-in-the-middle attacks.
D. The DH exchange is used to authenticate the peer device duringan IPSec phase 1 exchange.
E.A DH exchange provides Perfect Forward Secrecy （PFS）.
A. 3DES is muchmore secure than DES.
B. Both DES and 3DES are stream ciphers.
C. DES uses 64 bitkeys， although the effective key lengthis only 56bits.
D. The decryption operation for both DES and 3DES is the same as the encryption operation.
E. DES can only be used for encryption， whereas 3DES can also be used for authentication.
A. The RADIUSVendor Specific Attribute type is decimal 26.
B. A radius server that does not understandthevendor-specific information sent by a clientmust reject the authentication request.
C. A vendor can freely choose theVendor-ID it wants to use when implementing Vendor Specific Attributes as long as the same Vendor-ID is used on all of its products.
D. Vendor Specific AttributeMUST include the Length field.
E. In Cisco’s Vendor Specific Attribute implementation， vendor-ID of 1 is commonly referred to as Cisco AV（Attribute Value） pairs.
F. Vendor Specific Attributes use a RADIUS attribute type between 127 and 255.
A. Access-reject
B. Access-response
C. Access-challenge
D. Access-reply
E. Access-accept
最新試題
Which of the following is an example of a security technology that could be enabled by Netflow？（）
For a router to obtain a certificate from a CA， what is the first stepof the certificate enrollment process？（）
Which statements are true concerning NAT？ （）
Which Cisco security software product mitigates Day Zero attacks on desktops and servers - stopping known and unknown attacks without requiring reconfigurations or updates on the endpoints？（）
TACACS+ authentication uses whichthree packet types？ （）
Which IOS QoS mechanism is used strictly to rate limit traffic destinedto the router itself？（）
What is true about SYN cookies？（）
When configuring a multipoint GRE （mGRE） tunnel interface， which one of the following is NOT a valid configuration option：（）
With PGP， which of the following entity signs a users’s public key？（）
CS-MARS works with which IOS feature to accomplish anomaly detection？（）