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单选题
Why does a digital signature CONTAIN a message digest?为什么数字签名包含一个消息摘要？（）
A
To confirm the identity of the receiver 为了确认接收者的身份
B
To indicate the encryption algorithm 为了标注加密算法
C
To detect any alteration of the message 为了检测对消息的篡改
D
To enable transmission in a digital format 为了便于进行数字格式传输
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更多 “单选题Why does a digital signature CONTAIN a message digest?为什么数字签名包含一个消息摘要？（）A To confirm the identity of the receiver 为了确认接收者的身份B To indicate the encryption algorithm 为了标注加密算法C To detect any alteration of the message 为了检测对消息的篡改D To enable transmission in a digital format 为了便于进行数字格式传输” 相关考题
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Which IS－IS authentication method is supported on the ERX Edge Router?()
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What does DVI stand for?()
A. Dual Visual InterfaceB. Display Vertical InterfaceC. Digital Visual InterfaceD. Digital Vision Interchange
考题
Symmetric, or private-key, encryption is based on a secret key that is shared by both communcating parties. The （ ） party uses the secret key as part of the mathematical operation to encrypt （ ） text to cipher text. The receiving party uses the same secret key to decrypt the cipher text to plain text. Asymmetric, or public-key, encryption uses two different keys for each user: one is a （ ） key known only to this one user; the other is a corresponding public key, which is accessible to anyone. The private and public keys are mathematically related by the encryption algorithm. One key ia used for encyption and the other for decryption, depending on the nature of the communication service being implemented. In addition, public key encryption technoligies allow digital （ ） to be placed on messages. A digital signature uses the senders private key to encrypt some portion of the message. When the message is received, the receiver uses the senders （ ） key tp decipher the digital signature to verify the senders identity.A.host B.terminal C.sending D.receiving A.plain B.cipher C.public D.private A.plain B.cipher C.public D.private A.interpretation B.signatures C.encryption D.decryption A.plain B.cipher C.public D.private
考题
Certificates are（ ）documents attesting to the （ ） of a public key to an individual or other entity. They allow verification of the claim that a given public key does in fact belong to a given individual. Certificates help prevent someone from using a phony key to（ ）someone else. In their simplest form, Certificates contain a public key and a name. As commonly used, a Certificate also contains an （ ）date, the name of the CA that issued the Certificate, a serial number, and perhaps other information. Most importantly, it contains the digital（请作答此空）of the certificate issuer. The most widely accepted format for certificates is X.509, thus, Certificates can be read or written by any application complying with X.509.
A.signature]
B.mark
C.stamp
D.hypertext
考题
Symmetric, or private-key, encryption is based on a secret key that is shared by both communcating parties. The （ ） party uses the secret key as part of the mathematical operation to encrypt （ ） text to cipher text. The receiving party uses the same secret key to decrypt the cipher text to plain text. Asymmetric, or public-key, encryption uses two different keys for each user: one is a （ ） key known only to this one user; the other is a corresponding public key, which is accessible to anyone. The private and public keys are mathematically related by the encryption algorithm. One key ia used for encyption and the other for decryption, depending on the nature of the communication service being implemented. In addition, public key encryption technoligies allow digital （_______） to be placed on messages. A digital signature uses the sender's private key to encrypt some portion of the message. When the message is received, the receiver uses the sender's （） key tp decipher the digital signature to verify the sender's identity.横线处应选（ ）。
A. interpretation
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C. encryption
D.decryption
考题
Does it always matter if the “real world” is not being practiced in the classroom? Why or why not?
考题
Why does a digital signature CONTAIN a message digest?为什么数字签名包含一个消息摘要？（）A、To confirm the identity of the receiver 为了确认接收者的身份B、To indicate the encryption algorithm 为了标注加密算法C、To detect any alteration of the message 为了检测对消息的篡改D、To enable transmission in a digital format 为了便于进行数字格式传输
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What does DVI stand for?（）A、Dual Visual InterfaceB、Display Vertical InterfaceC、Digital Visual InterfaceD、Digital Vision Interchange
考题
What are the three OSPF authentication methods supported on the ERX Edge Router？（）A、 null passwordB、 simple passwordC、 message digest 5D、 Password Authentication ProtocolE、 Challenge Handshake Authentication Protocol
考题
Which two statements are true about terms in a routing policy?（）A、A routing policy cannot have more than one term.B、If a term does not contain a from statement, all routes match.C、If a term does not contain a from statement, the Junos OS will not commit.D、A then statement is not mandatory in a term.
考题
What is the MD5 algorithm used for？（）A、takes a fixed-length message and produces a 128-bit message digestB、takes a variable-length message and produces a 168-bit message digestC、takes a message less than 2^64 bits as input and produces a 160-bit message digestD、takes a variable-length message and produces a 128-bit message digest ActualTests.com
考题
与RSA（rivest，shamir，adleman）算法相比，DSS（digital signature standard）不包括（）。A、数字签名B、鉴别机制C、加密机制D、数据完整性
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Which two statements are true about terms in a routing policy?（）A、A then statement is mandatory in a termB、If a term does not contain a from statement, all routers matchC、If a term does not contain a from statement, the Junos OS will not commitD、A then statement is not mandatory in a term
考题
单选题与RSA（Rivest，Shamir，Adleman）算法相比，DDS（Digital Signature Standard）不包括（）A
数字签名B
鉴别机制C
加密机制D
数据完整性
考题
单选题Which IS-IS authentication method is supported on the ERX Edge Router?（）A
simple passwordB
HMAC message digest 5C
Password Authentication ProtocolD
Challenge Handshake Authentication Protocol
考题
多选题Which two statements are true about terms in a routing policy?（）AA then statement is mandatory in a termBIf a term does not contain a from statement, all routers matchCIf a term does not contain a from statement, the Junos OS will not commitDA then statement is not mandatory in a term
考题
问答题Does it always matter if the “real world” is not being practiced in the classroom? Why or why not?
考题
名词解释题digital signature数字签名
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