Cloud Computing Multiple Choice Questions on “Media and Streaming”.
1. Which of the following is the audio streaming application by Microsoft?
a) Hangout
b) Skype
c) Voice
d) All of the mentioned
Answer: b
Clarification: Skype is a telecommunications application software product that specializes in providing video chat and voice calls from the computer.
2. Point out the correct statement.
a) Streaming files are a way of delivering large content in pieces so playback can begin more quickly
b) Streaming is used for broadcasting current events
c) Cloud computing provides large storage for maintaining libraries
d) All of the mentioned
Answer: d
Clarification: Cloud computing has a number of advantages that aid content providers and delivery systems.
3. How many types of streamed material exist for audio/video streaming applications?
a) 1
b) 2
c) 3
d) 4
Answer: b
Clarification: Streamed material can be live or on-demand.
4. Which of the following streaming is also called progressive download?
a) Offline
b) Live
c) On-demand
d) All of the mentioned
Answer: b
Clarification: Live streaming is called progressive streaming.
5. Point out the wrong statement.
a) Video streaming was among the first media applications to find widespread use on the Internet
b) VoIP is a form of audio streaming with a set of specialized protocols
c) Broadband connections and low-cost infrastructure have made video streaming services widely available
d) None of the mentioned
Answer: a
Clarification: Cloud computing has expanded the use of streamed audio to make radio, Webcasts, music sites, and other services widely available.
6. Which of the following streaming occurs from the material that is already stored to disk?
a) Online
b) Live
c) On-demand
d) All of the mentioned
Answer: c
Clarification: Streaming media are files that are sent in pieces by service and played back by a client as the delivery continues.
7. When a live stream is sent a multicast to 1,000 concurrent users at 500 kbps, the number of megabytes transferred is _______________
a) 220 GB
b) 220 MB
c) 220 TB
d) None of the mentioned
Answer: a
Clarification: Formula for data transfer is: MB transferred = Bandwidth x Time x Number of Users.
8. Which of the following is a stream sent from a service to an individual user?
a) Unicast
b) Multicast
c) Broadcast
d) None of the mentioned
Answer: a
Clarification: For many content services, such as the music services Last FM and Rhapsody, a vast number of files are being served to individual users and they go out using unicast protocols as individual streams.
9. Applications that protect streamed content by playing the part of the file and discarding it are more aptly referred to as _________
a) Streaming
b) Scaling
c) Gathering
d) All of the mentioned
Answer: a
Clarification: Even if delivery is always over a WAN connection, CDN (Content Delivery Network) still offers enormous inefficiencies.
10. Which of the following transmission protocol is used in case of a streamed media scenario?
a) TCP
b) UDP
c) HTTP
d) None of the mentioned
Answer: b
Clarification: UDP stands for user datagram protocol.