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.
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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
What group in Cisco IOS does 1536-bit Diffie-Hellman prime modulus equivalent too？（）
Select the two correctstatements from the list below that describe DES and 3DES： （）
Which of the following is true about RADIUSV end or Specific Attribute？ （）
Which two statements are correct about the aaa authentication login default grouptacacs+ localglobal configuration command？ （）
What are the header sizes for point-to-point and multi-point GRE（also known asmGRE） with tunnel key？（）
When implementing internet standards you are required to follow RFC’s processes and procedures based onwhat RFC？（）
CSA protects your host by： （）
For a router to obtain a certificate from a CA， what is the first stepof the certificate enrollment process？（）
Which of the following is an example of a security technology that could be enabled by Netflow？（）
Which one of the following is NOT a valid RADIUS packet type？（）