Asymmetric and symmetric ciphers differ in which of the following way（s）？ （） A、Asymmetric ciphers use pre-shared keysB、Symmetric ciphers are faster to computeC、Asymmetric ciphers are faster to computeD、Asymmetric ciphers use public and private
Asymmetric and symmetric ciphers differ in which of the following way（s）？ （）
- A、Asymmetric ciphers use pre-shared keys
- B、Symmetric ciphers are faster to compute
- C、Asymmetric ciphers are faster to compute
- D、Asymmetric ciphers use public and private
相关考题：
ADSL(Asymmetric Digital Subscriber Loop)即对称数字用户环路技术,它是利用现有的一对电话铜线为用户提供上、下行对称的传输速率(带宽)。() 此题为判断题(对，错)。
All three types of cryptography schemes have unique function mapping to specific．For example,the symmetric key approach（ ）is typically used for the encryption of data providing（ ）,whereas asymmetric key cryptography is maidy used in key（ ）and nonrepudiation,thereby providing confidentiality and authentication．The hash（本题）（noncryptic）,on the other hand,does not provide confidentiality but provides message integrity,and cryptographic hash algorithms provide message（ ）and identity of peers during transport over insecure channels．A.AlgorithmB.SecureC.structureD.encryption
ADSL：Asymmetric.Digital.Subscriber.Line全称为：（）A、非同步数字用户线路B、同步数字用户线路C、非均衡数字用户线路D、非对称数字用户线路E、对称数字用户线路
Which three are distinctions between asymmetric and symmetric algorithms？ （）A、Only symmetric algorithms have a key exchange technology built inB、Asymmetric algorithms are used quite often as key exchange protocols for symmetricalgorithmsC、Only asymmetric algorithms have a key exchange technology built inD、Asymmetric algorithms are based on more complex mathematical computations
Which one of the following potential issues is eliminated by using split horizon？（）A、Joined horizonsB、Packet forwarding loopsC、cisco Express Forwarding load-balancing inconsistencyD、Asymmetric routing throughout the network
Which of the following statements that describe Diffie Hellman Key exchange are correct？ （）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）.
下列哪一种网路宽带技术主要利用「电话线」作为传输媒介？（）A、ADSL（Asymmetric Digita lSubscribe rLine）B、Cable ModemC、Direct PCD、FTTH（Fiber To The Home）
Which description about asymmetric encryption algorithms is correct？（）A、They use the same key for encryption and decryption of data.B、They use different keys for decryption but the same key for encryption of data.C、They use different keys for encryption and decryption of data.D、They use the same key for decryption but different keys for encryption of data.
Which two statements about an interface configured with the asr-group command are correct?（）A、The FWSM supports up to 16 asymmetric routing groups.B、If a matching packet is not found, the packet is dropped.C、Asymetric routing of return traffic is enabled.D、If a matching packet is found, the Layer 3 header is rewritten.E、If a matching packet is found, the Layer 3 header is rewritten and the packet is forwarded to the default gateway.
Which of the following statements is correct regarding a hybridcrypto system？（）A、 uses symmetric crypto for keys distributionB、 uses symmetric crypto for proof of originC、 uses symmetric crypto for fast encrypted/decryptionD、 uses asymmetric crypto for message confidentialityE、 uses symmetric crypto to transmit the asymmetric keys that is thenused to encrypt a session
Which two of these correctly describe asymmetric routing and firewalls?（）A、only operational in routed modeB、only operational in transparent modeC、only eight interfaces can belong to an asymmetric routing groupD、operational in both failover and non-failover configurationsE、only operational when the firewall has been configured for failover
Which three mechanisms are used to secure management traffic from outside IPS sensors?（）A、secure tunnelsB、a separate management VLANC、secure VLANs to isolate sensorsD、an out-of-band path around the firewallE、asymmetric traffic flows to isolate sensorsF、private VLANs to put all sensors on isolated ports
Birthday attacks are used against which of the following？（）A、 digital signaturesB、 symmetric cipheringC、 hashalgoritmsD、 asymmetric cipheringE、 digital certificates
单选题According to the text, starry flounder differ form most other species of flatfish in that starry flounder ______.Aare not basically bilaterally symmetricBdo not become asymmetric until adulthoodCdo not all share the same asymmetryDhave both eyes on the same side of the head
多选题Which three are distinctions between asymmetric and symmetric algorithms？ （）AOnly symmetric algorithms have a key exchange technology built inBAsymmetric algorithms are used quite often as key exchange protocols for symmetricalgorithmsCOnly asymmetric algorithms have a key exchange technology built inDAsymmetric algorithms are based on more complex mathematical computations
多选题Which of the following statements that describe Diffie Hellman Key exchange are correct？ （）AA DH key exchange is an algorithm that utilizes asymmetric cryptographic keys.BThe DH key exchange is used to establish a shared secret over an insecure medium during an IPSec phase 1 exchange.CThe DH exchange is susceptible to man-in-the-middle attacks.DThe DH exchange is used to authenticate the peer device duringan IPSec phase 1 exchange.EA DH exchange provides Perfect Forward Secrecy （PFS）.
多选题Asymmetric and symmetric ciphers differ in which of the following way（s）？ （）AAsymmetric ciphers use pre-shared keysBSymmetric ciphers are faster to computeCAsymmetric ciphers are faster to computeDAsymmetric ciphers use public and private
单选题Which encryption type is used to secure user data in an IPsec tunnel?（）Asymmetric key encryptionBasymmetric key encryptionCRSADdigital certificates
多选题Which two statements about an interface configured with the asr-group command are correct？ （）AThe FWSM supports up to 16 asymmetric routing groups.BIf a matching packet is not found， the packet is dropped.CAsymetric routing of return traffic is enabled.DIf a matching packet is found， the Layer 3 header is rewritten.EIf a matching packet is found， the Layer 3 header is rewritten and the packet is forwarded to thedefault gateway.
单选题Which Application Layer security protocol requires two pair of asymmetric keys and two digital certificates?以下那个应用层协议需要两对非对称秘钥和两个数字证书（）ASSLBPEMCS/HTTPDSET
单选题Which of the following technologies allows a single physical processor to do the work of multiple processors？（）ASymmetric multi-processingBMulticoreC64-bit processingDHyper-V
单选题Which statement is true regarding a session key in the Diffie-Hellman key-exchange process?（）AA session key value is exchanged across the network.BA session key never passes across the network.CA session key is used as the key for asymmetric data encryption.DA session key is used as the key for symmetric data encryption.
单选题Which description about asymmetric encryption algorithms is correct？（）AThey use the same key for encryption and decryption of data.BThey use different keys for decryption but the same key for encryption of data.CThey use different keys for encryption and decryption of data.DThey use the same key for decryption but different keys for encryption of data.