免费智能真题库 > 历年试卷 > 网络工程师 > 2020年下半年 网络工程师 上午试卷 综合知识
  第75题      
  章/节:   计算机专业英语       

 
The Address Resolution Protocol(ARP)was developed to enable communication on an Internetwork and perform a required function in IP routing.ARP lies between layers(71)of the OSI model,and allows computers to introduce each other across a network prior to communication.APR finds the(72 )address of a host from its known(73 )address.Before a device sends a datagram to another device,it looks in its ARP cache to see if there is a MAC address and corresponding IP address for the destination device.If there is no entry,the souree device sends a(74)message to every device on the network.Each device compares the IP address to its own.Only the device with the matching IP address replies with a packet containing the MAC address for the device(except in the case of “proxy ARP”).The source device adds the(75 )device MAC address to its ARP table for future reference.
 
 
  A.  source
 
  B.  destination
 
  C.  gateway
 
  D.  proxy
 
 
 

 
  第72题    2018年下半年  
   46%
The TTL field was originally designed to hold a time stamp, which was decremented by each visited router.The datagram wa..
  第72题    2012年上半年  
   48%
The TCP protocol is a (71) layer protocol. Each connection connects two TCPs that may be just one physical network apart..
  第75题    2011年下半年  
   77%
A transport layer protocol usually has several responsibilities. One is to create a process-to-process communication; UD..
   题号导航      2020年下半年 网络工程师 上午试卷 综合知识   本试卷我的完整做题情况  
1 /
2 /
3 /
4 /
5 /
6 /
7 /
8 /
9 /
10 /
11 /
12 /
13 /
14 /
15 /
 
16 /
17 /
18 /
19 /
20 /
21 /
22 /
23 /
24 /
25 /
26 /
27 /
28 /
29 /
30 /
 
31 /
32 /
33 /
34 /
35 /
36 /
37 /
38 /
39 /
40 /
41 /
42 /
43 /
44 /
45 /
 
46 /
47 /
48 /
49 /
50 /
51 /
52 /
53 /
54 /
55 /
56 /
57 /
58 /
59 /
60 /
 
61 /
62 /
63 /
64 /
65 /
66 /
67 /
68 /
69 /
70 /
71 /
72 /
73 /
74 /
75 /
 
第75题    在手机中做本题