
KTTDS 3
Quiz
•
Instructional Technology
•
University
•
Practice Problem
•
Hard
Trang Nhung
FREE Resource
Enhance your content in a minute
30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Để truyền dữ liệu, các chân nào phải ở trạng thái ON? (DB25):
50 feet
500feet
4000feet (1,2Km)
5000feet
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chân nào được dùng cho remote loopback testing:
local loopback (18)
remote loopback và signal quality detector (21)
test mode (25)
a và c
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chân nào hiện nay chưa dùng đến:
9
10
11
tất cả các chân trên
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chân nào được dùng cho kênh phụ:
12
13
19
tất cả các chân trên
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chiều dài tối đa 50 feet (15m) là của chuẩn nào:
EIA – 449
EIA – 232
RS – 423
RS – 422
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Theo chuẩn EIA-449 thì chiều dài cáp là từ 40 feet (12m) đến:
dữ liệu
định thời
điều khiển
đất
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tốc độ dữ liệu tối đa của RS-422 là bao nhiêu lần tốc độ tối đa của RS-423:
0,1
10
100
500
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