Question 61
50/60 fields are a middle way of relatively low transmission load, which give consideration to 60 frames smooth and 30 frames.
A. True
B. False
Question 62
H.323 standard belongs to ( ) network
A. optical switching
B. packet switching
C. link exchange
D. circuit switching
Question 63
When two MCU cascade, scheduling a meeting, besides, superior and subordinate MCU as a virtual venue respectively join the conference.
A. True
B. False
Question 64
Business management system is used for centralized management of video resources, responsible for reservation and scheduling of meetings, including network control center, conference reservation system ( ).
A. the billing system
B. Multi-Resource Management Center
C. GK
D. all of the above
Question 65
Which of the following is the highest video format supported currently by Video conference system?
A. 4CIF
B. 720P
C. 1080P
D. 2016P
Question 66
Which of the following is the highest video format supported currently by Video conference system?
A. 4CIF
B. 720P
C. 1080P
D. 2016P
Question 67
IP addresses call directly which don't need GK.
A. True
B. False
Question 68
Which organization is it that set the standard H.323?
A. ITU_T
B. IEEE
C. NSI
D. ISO
Question 69
Currently, what are the main types of MCU? (Please choose 3 answers)
A. MCU8650
B. MCU8650C
C. MCU8660
D. portable MCU
Question 70
What is the resolution of 1080P?
A. 1080*720 progressive scanning
B. 1080*720 interlaced scanning
C. 1920*1080 progressive scanning
D. 1920*1080 interlaced scanning
