Just4cert NS0-920 Practice Exams

NetCache Deployment Options & Streaming Certification Braindumps

• Exam Number/Code : NS0-920
• Exam Name : NetCache Deployment Options & Streaming
• Questions and Answers : 60 Q&As
• Update Time: 2009-09-18
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NS0-920 Practice Exams:

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Exam : Network Appliance NS0-920
Title : Network Appliance NetCache Deployment Options and Streaming

1. When is information recorded into the Streaming Access log?
A. When the client streaming connection is opened.
B. Within 500 ms of connect.
C. Throughout the streaming session.
D. When the client streaming connection is closed.
Answer: D

2. How will the following configuration command affect the factory default configuration?
set config.http.transparency on
A. NetCache starts listening promiscuously on port 80.
B. NetCache stops listening on port 3128 and restarts listening promiscuously on port 3128.
C. An error message is reported; no configuration change occurs.
D. An error message is reported; NetCache starts listening promiscuously on all TCP ports.
Answer: B

3. Request forwarding is useful for doing which of the following?
A. To process URLs that are not cacheable, or for sites that use IP authentication.
B. To force all traffic through the NetCache appliance.
C. To create a load balancing scheme.
D. To allow the NetCache to send the URL request as if it is coming from the cache and not the client.
Answer: A

4. What version(s) of SSH does NetCache support?
A. Versions 1 and 2
B. Version 2 only
C. Versions 2 and 3
D. Version 3 only
E. None
Answer: A

5. Which set of acceleration rules will best allow for acceleration of a Windows Media Server that uses MMS and HTTP for transport protocols?
NetCache IP: 10.1.2.3 netcache.server.com
Streaming Server IP: 10.1.2.5 m.server.com
A. streaming.acceleration.rules=
10.1.2.3 1755 * * 10.1.2.5 1755 m.server.com *
10.1.2.3 80 * * 10.1.2.5 80 m.server

B. config.streaming.acceleration.rules=
10.1.2.3 1755 * * 10.1.2.5 1755 m.server.com *

config.http.acceleration.rules=
10.1.2.3 80 * * 10.1.2.5 80 m.server.com *

C. config.acceleration.rules=
mms 10.1.2.3 10.1.2.5 netcache.server.com m.server.com
http 10.1.2.3 10.1.2.5 netcache.server.com m.server.com

D. config.streaming.acceleration.rules=
10.1.2.3 554 * * 10.1.2.5 554 m.server.com *
10.1.2.3 80 * * 10.1.2.5 80 m.server.com *

Answer: A

6. What is the purpose of the "Here I Am" message?
A. It identifies the NetCache appliance as the router.
B. It identifies the service group membership.
C. It announces that the NetCache appliance is available after a shutdown.
D. It identifies that the NetCache appliance has received a request.
Answer: B

7. Bandwidth allocation rules can be used to optimize streaming performance in which three ways? (Choose 3)
A. They can allocate bandwidth by user and group.
B. They can manage NetCache bandwidth utilization to ensure bandwidth for other uses.
C. They can allocate bandwidth based on CPU and memory usage.
D. They can restrict or deny connections.
Answer: ABD

8. Why must a Layer 4 switch be on the same subnet as the NetCache appliance?
A. To use IP-GRE encapsulation.
B. To prevent IP spoofing.
C. To use MAC address rewriting.
D. To monitor the health of the NetCache appliance.
Answer: C

9. Which can be determined about an .ASF object by using the object command?
A. The playing time of the stream.
B. The amount of disk space used to store it on the cache.
C. The number of packets in the stream.
D. The author of the stream.
Answer: C

10. What happens if you assign a service group ID of 4 on one NetCache appliance, and you assign a service group ID of 2 on another NetCache appliance?
A. The two groups will load balance between each other.
B. The WCCP router will automatically group the two together.
C. Each NetCache appliance will join a different service group.
D. The NetCache appliances use only the ID assignment for internal information, so there is no effect.
Answer: C

11. Which three are true about WCCP? (Choose 3)
A. WCCP service groups must support a single protocol.
B. WCCP service groups can consist of one or more routers or proxy-cache servers.
C. WCCP service groups must be defined with the same settings.
D. Traffic redirection and distribution are based on logical WCCP service groups.
Answer: BCD

12. Which statement about a Layer 4 switch is true? (Choose 3)
A. It can be configured to pass non-HTTP traffic directly to the Web.
B. It passes traffic based on the port number in a TCP/IP packet.
C. It passes traffic based on the URL of the client’s request.
D. It uses MAC address rewriting to redirect packets.
Answer: ABD

13. When traffic is tunneled, the NetCache appliance can take which two actions? (Choose 2)
A. It can be used with manually configured browsers.
B. It passes specified types of nonstandard traffic through without caching it.
C. It examines the source and destination information, and caches the resulting objects.
D. It receives requests and allows or denies based on ACLs.
Answer: BD

14. When you have a Digital Rights Management (DRM) streaming, authentication is performed between which two devices?
A. HTTP server and client player
B. streaming media server and client player
C. authentication server and router
D. domain controller and streaming media server
Answer: B

15. A list of HTTP headers returned to a client for a cache hit on a stream may be viewed using the __________.
A. smstats command
B. sysstat command
C. Streaming Details log
D. object command
Answer: D

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