Usually low key is used for emphasis and contrast; mid key indicates an expected, neutral attitude; and low key provides low information.（）

题目

相似考题

1.(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)

2.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.

3.A barometer showing falling pressure indicates the approach of a ______.A.high pressure systemB.low pressure systemC.high dew pointD.low dew point

4.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);}

参考答案和解析

正确答案:错误

更多“Usually low key is used for emphasis and contrast; mid key indicates an expected, neutral attitude; and low key provides low information.（）”相关问题

第1题：

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

答案：
解析：
low<=high
（2）high=mid-1
（3）low=mid+1
（4）low<=high
（5）low,mid-1
（6）mid+1,high
（7）A
【解析】

本题考察折半查找。二分查找又称折半查找，优点是比较次数少，查找速度快，平均性能好，占用系统内存较少；其缺点是要求待查表为有序表，且插入删除困难。因此，折半查找方法适用于不经常变动而查找频繁的有序列表。首先，假设表中元素是按升序排列，将表中间位置记录的关键字与查找关键字比较，如果两者相等，则查找成功；否则利用中间位置记录将表分成前、后两个子表，如果中间位置记录的关键字大于查找关键字，则进一步查找前一子表，否则进一步查找后一子表。重复以上过程，直到找到满足条件的记录，使查找成功，或直到子表不存在为止，此时查找不成功。
二分查找的基本思想是将n个元素分成大致相等的两部分，取a[n/2]与x做比较，如果x=a[n/2],则找到x,算法中止；如果xa[n/2],则只要在数组a的右半部搜索x。
总共有n个元素，渐渐跟下去就是n,n/2,n/4,....n/2^k（接下来操作元素的剩余个数），其中k就是循环的次数。
第2题：

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.Algorithm
B.Secure
C.structure
D.encryption

答案：A
解析：
第3题：

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、（low&high）/2
- B、（low+high）/2
- C、（low-high）/2
- D、low/2+high/2
正确答案:B
第4题：

What is the objective of Diffie-Hellman？（）
- A、used to verify the identity of the peer
- B、used between the initiator and the responder to establish a basic security policy
- C、used to establish a symmetric shared key via a public key exchange process
- D、used for asymmetric public key encryption
正确答案:C
第5题：

键盘事件的执行顺序是（）。
- A、Key Press、Key Down、Key Up
- B、Key Down、Key Press、Key Up
- C、Key Up、Key Down、Key Press
- D、Key Up、Key Press、Key Down
正确答案:B
第6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 malware
- B、 the proxy blocked access to a site with a low reputation score
- C、 the proxy blocked access to a site because of a suspicious server response
- D、 your appliance or the WBRS key is out of support
正确答案:B
第7题：

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）
正确答案:A,D
第8题：

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.
正确答案:A,D
第9题：

单选题
A great circle track provides the maximum saving in distance on（）.
A
easterly courses in high latitudes
B
southerly courses in high latitudes
C
westerly courses in low latitudes
D
easterly courses in low latitudes that cross the equator

正确答案： B
解析：暂无解析
第10题：

单选题
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.

正确答案： A
解析：暂无解析
第11题：

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

正确答案：对
解析：暂无解析
第12题：

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]=（）； } }

正确答案： r[0]
解析：暂无解析
第13题：

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

答案：A
解析：
略
第14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

错
略
第15题：

The 1983 report"A Nation At Risk"cited as example of the decline of educational standards（）
- A、high rates of adult illiteracy
- B、declining SAT scores
- C、low scores of American students in key subjects as compared with scores of students of other countries
- D、All of the above
正确答案:D
第16题：

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）.
正确答案:A,B,C,E
第17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<=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]=（）； } }

正确答案:r[0]
第18题：

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).
正确答案:A
第19题：

Which encryption type is used to secure user data in an IPsec tunnel?（）
- A、symmetric key encryption
- B、asymmetric key encryption
- C、RSA
- D、digital certificates
正确答案:A
第20题：

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
正确答案:A,B
第21题：

单选题
Low pressure air is usually taken through （） or pressure regulators to a low pressure reservoir supplying a ring main through driers.
A
globe valves
B
butterfly valves
C
gate valves
D
reducing valves

正确答案： A
解析：暂无解析
第22题：

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 malware
B
the proxy blocked access to a site with a low reputation score
C
the proxy blocked access to a site because of a suspicious server response
D
your appliance or the WBRS key is out of support

正确答案： B
解析：暂无解析
第23题：

多选题
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.

正确答案： D,B
解析：暂无解析

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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参考答案和解析

更多“Usually low key is used for emphasis and contrast; mid key indicates an expected, neutral attitude; and low key provides low information.（）”相关问题

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