Usually low key is used for emphasis and contrast; mid key indicates an expected, neutral attitude; and low key provides low information.（）
Usually low key is used for emphasis and contrast; mid key indicates an expected, neutral attitude; and low key provides low information.（）
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(b) The CEO of Oceania National Airways (ONA) has already strongly rejected the re-positioning of ONA as a ‘nofrills’ low-cost budget airline.(i) Explain the key features of a ‘no frills’ low-cost strategy. (4 marks)
阅读以下函数说明和C语言函数，将应填入(n)处的字句写在对应栏内。[说明]已知r[1...n]是n个记录的递增有序表，用折半查找法查找关键字为k的记录。若查找失败，则输出“failure",函数返回值为0；否则输出“success”，函数返回值为该记录的序号值。[C函数]int binary search(struct recordtype r[],int n,keytype k){ intmid,low=1,hig=n;while(low＜=hig){mid=(1);if(k＜r[mid].key) (2);else if(k==r[mid].key){printf("succesS\n");(3);}else (4);}printf("failure\n");(5);}
Which statement is true regarding a session key in the Diffie－Hellman key－exchange process?() A. A session key value is exchanged across the network.B. A session key never passes across the network.C. A session key is used as the key for asymmetric data encryption.D. A session key is used as the key for symmetric data encryption.
A barometer showing falling pressure indicates the approach of a ______.A.high pressure systemB.low pressure systemC.high dew pointD.low dew point
第四题 阅读以下说明、C函数和问题，回答问题1和问题2将解答填入答题纸的对应栏内。【说明】当数组中的元素已经排列有序时，可以采用折半查找（二分查找）法查找一个元素。下面的函数biSearch(int r[]，int low，int high，int key)用非递归方式在数组r中进行二分查找，函数biSearch_rec(int r[]，int low，int high，int key)采用递归方式在数组r中进行二分查找，函数的返回值都为所找到元素的下标；若找不到，则返回-1。【C函数1】int biSearch(int r[]，int low，int high，int key)//r[low..high] 中的元素按非递减顺序排列//用二分查找法在数组r中查找与key相同的元素//若找到则返回该元素在数组r的下标，否则返回-1{ int mid; while(（1）) { mid = (low+high)/2 ; if (key ==r[mid]) return mid; else if (key （2）; else （3）; }/*while*/ return -1;}/*biSearch*/【C 函数 2】int biSearch_rec(int r[]，int low，int high，int key)//r[low..high]中的元素按非递减顺序排列//用二分查找法在数组r中查找与key相同的元素//若找到则返回该元素在数组r的下标，否则返回-1{ int mid; if(（4）) { mid = (low+high)/2 ; if (key ==r[mid]) return mid; else if (key return biSearch_rec(（5）,key); else return biSearch_rec(（6）,key); }/*if*/ return -1;}/*biSearch_rec*/ 问题：4.1 (12分）请填充C函数1和C函数2中的空缺，将解答填入答题纸的对应栏内。 问题：4.2 (3分）若有序数组中有n个元素，采用二分查找法查找一个元素时，最多与（ ）个数组元素进行比较，即可确定查找结果。（7）备选答案：A.[log2(n+1)] B.[n/2] C.n-1 D.n
All three types of cryptography schemes have unique function mapping to specific．For example, the symmetric key approach （71） is typically used for the encryption of data providing（72）, whereas asymmetric key cryptography is maidy used in key（73）and nonrepudiation, thereby providing confidentiality and authentication． The hash（74）（noncryptic）, on the other hand, does not provide confidentiality but provides message integrity, and cryptographic hash algorithms provide message（75）and identity of peers during transport over insecure channels．A. Cryptography B.decode C.privacy D.security
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
Usually low key is used for emphasis and contrast; mid key indicates an expected, neutral attitude; and low key provides low information.（）A对B错
数据结构与算法里，折半查找中，low指向低端的记录，high指向高端的记录，每次计算中间位置mid的公式是（）。A、（lowhigh）/2B、（low+high）/2C、（low-high）/2D、low/2+high/2
The 1983 report"A Nation At Risk"cited as example of the decline of educational standards（）A、high rates of adult illiteracyB、declining SAT scoresC、low scores of American students in key subjects as compared with scores of students of other countriesD、All of the above
What is the objective of Diffie-Hellman？（）A、used to verify the identity of the peerB、used between the initiator and the responder to establish a basic security policyC、used to establish a symmetric shared key via a public key exchange processD、used for asymmetric public key encryption
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）.
键盘事件的执行顺序是（）。A、Key Press、Key Down、Key UpB、Key Down、Key Press、Key UpC、Key Up、Key Down、Key PressD、Key Up、Key Press、Key Down
完成下列折半插入排序算法。 Void binasort（struct node r[MAXSIZE]，int n） {for（i=2；i=n；i++）{ r[0]=r[i]；low=1；high=i-1； while（low=high）{ mid=（low+high）/2； if（r[0].key else low=mid+1 ； } for（j=i-1；j=low；j- -）r[j+1]=r[j] ； r[low]=（） ； } }
What does the appearance of the ACL tag BLOCK_WBRS in the access log mean？（） A、 the proxy blocked an outbound request because the client is infected with malwareB、 the proxy blocked access to a site with a low reputation scoreC、 the proxy blocked access to a site because of a suspicious server responseD、 your appliance or the WBRS key is out of support
Why are the 1300 nm and 1550 nm regions of the fiber spectrum primarily used for optical communications?（）A、They are both regions of lowest loss.B、They are both regions of low reflections.C、They are both regions of low index of refraction.D、They are both regions of low chromatic dispersion.E、They are both regions of low Polarization Mode Dispersion (PMD).
public class Key { private long id1； private long 1d2； // class Key methods } A programmer is developing a class Key， that will be used as a key in a standard java.util.HashMap. Which two methods should be overridden to assure that Key works correctly as a key？（）A、 public int hashCode（）B、 public boolean equals（Key k）C、 public int compareTo（Object o）D、 public boolean equals（Object o）E、 public boolean compareTo（Key k）
Which encryption type is used to secure user data in an IPsec tunnel?（）A、symmetric key encryptionB、asymmetric key encryptionC、RSAD、digital certificates
Which two statements regarding symmetric key encryption are true?（） (Choose two.)A、The same key is used for encryption and decryption.B、It is commonly used to create digital certificate signatures.C、It uses two keys: one for encryption and a different key for decryption.D、An attacker can decrypt data if the attacker captures the key used for encryption.
Which two statements regarding asymmetric key encryption are true？（）A、The same key is used for encryption and decryption.B、It is commonly used to create digital certificate signatures.C、It uses two keys： one for encryption and a different key for decryption.D、An attacker can decrypt data if the attacker captures the key used for encryption
单选题A great circle track provides the maximum saving in distance on（）.Aeasterly courses in high latitudesBsoutherly courses in high latitudesCwesterly courses in low latitudesDeasterly courses in low latitudes that cross the equator
单选题Low pressure air is usually taken through （） or pressure regulators to a low pressure reservoir supplying a ring main through driers.Aglobe valvesBbutterfly valvesCgate valvesDreducing valves
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What does the appearance of the ACL tag BLOCK_WBRS in the access log mean？（）A the proxy blocked an outbound request because the client is infected with malwareB the proxy blocked access to a site with a low reputation scoreC the proxy blocked access to a site because of a suspicious server responseD your appliance or the WBRS key is out of support
判断题Usually low key is used for emphasis and contrast; mid key indicates an expected, neutral attitude; and low key provides low information.（）A对B错
多选题Which two statements regarding symmetric key encryption are true?（） (Choose two.)AThe same key is used for encryption and decryption.BIt is commonly used to create digital certificate signatures.CIt uses two keys: one for encryption and a different key for decryption.DAn attacker can decrypt data if the attacker captures the key used for encryption.
填空题完成下列折半插入排序算法。 Void binasort（struct node r[MAXSIZE]，int n） {for（i=2；i else low=mid+1 ； } for（j=i-1；j=low；j- -）r[j+1]=r[j] ； r[low]=（） ； } }