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Cisco 300-820 Practice Test - Questions Answers, Page 2

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Question 11

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What is the Cisco-recommended key length in bits for a Cisco Expressway certificate?

1024

1024

2048

2048

4096

4096

8192

8192

Suggested answer: C
asked 10/10/2024
ahmed kehli
36 questions

Question 12

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Cisco 300-820 image Question 12 115090 10102024232844000000

Refer to the exhibit. Which two numbers match the regular expression? (Choose two.)

d20d16d20d22

d20d16d20d22

2091652010224

2091652010224

209165200225

209165200225

d209d165d200d224

d209d165d200d224

209165200224

209165200224

Suggested answer: C, E
asked 10/10/2024
Malik Spamu
47 questions

Question 13

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A company has enabled ICE to optimize call flows and improve video quality between their Cisco Collaboration endpoints internally and externally.

For which reason would you see activity on the TURN server when a call is established between two external endpoints?

The video call is using encryption, which is not supported by ICE with CUCM 12.5

The video call is using encryption, which is not supported by ICE with CUCM 12.5

ICE cannot reduce the packet loss on the link

ICE cannot reduce the packet loss on the link

A STUN cannot punch holes in the firewall

A STUN cannot punch holes in the firewall

The video call is using 4K resolution, which is not supported by ICE with CUCM 12.5

The video call is using 4K resolution, which is not supported by ICE with CUCM 12.5

Suggested answer: A
asked 10/10/2024
Andrew Vogel
48 questions

Question 14

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Which role does Call Policy play when preventing toll fraud on Expressways?

It controls which calls are allowed, which calls are rejected, and which calls are redirected to a different destination.

It controls which calls are allowed, which calls are rejected, and which calls are redirected to a different destination.

It changes the calling and called number on a call.

It changes the calling and called number on a call.

It changes the audio protocol used by a call through Expressways.

It changes the audio protocol used by a call through Expressways.

It changes the audio codec used in a call through Expressways.

It changes the audio codec used in a call through Expressways.

Suggested answer: A
asked 10/10/2024
Carlos Antonio Cardenas Lee
40 questions

Question 15

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What happens to the encrypted signaling traffic of a collaboration device if you place it inside a firewall with private IP addresses and try to make a call over IP without any collaboration infrastructure?

The signaling makes it back to the endpoint because the firewall is an application layer gateway and provides address translation.

The signaling makes it back to the endpoint because the firewall is an application layer gateway and provides address translation.

Encrypted IP traffic for collaboration devices always is trusted by the firewall.

Encrypted IP traffic for collaboration devices always is trusted by the firewall.

The signaling does not make it back to the endpoint because the firewall cannot inspect encrypted traffic.

The signaling does not make it back to the endpoint because the firewall cannot inspect encrypted traffic.

The signaling makes it back to the endpoint because the endpoint sent the private address to the external endpoint.

The signaling makes it back to the endpoint because the endpoint sent the private address to the external endpoint.

Suggested answer: B
asked 10/10/2024
Nathalie Agustin
38 questions

Question 16

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Which statement about scheduling Expressway backups is true?

It is not supported on the application.

It is not supported on the application.

It is allowed from the application CLI of the Expressway only.

It is allowed from the application CLI of the Expressway only.

It is allowed from the application CLI and GUI of the Expressway.

It is allowed from the application CLI and GUI of the Expressway.

It is allowed from the application GUI of the Expressway only.

It is allowed from the application GUI of the Expressway only.

Suggested answer: C
asked 10/10/2024
William Macy
58 questions

Question 17

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Between which two DTMF relay methods does the Expressway support interworking? (Choose two.)

unsolicited notify

unsolicited notify

RFC 2833

RFC 2833

KPML

KPML

passthrough

passthrough

H.245 user input indication

H.245 user input indication

Suggested answer: B, E
Explanation:

Reference: https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/admin_guide/Cisco-Expressway-Administrator-Guide-X12-6.pdf

asked 10/10/2024
Xiaoyi Wu
45 questions

Question 18

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What allows endpoints behind a NAT to discover the paths through which they will pass media?

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Question 19

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Which two types of information does Cisco Expressway back up? (Choose two.)

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Question 20

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Which connection does the traversal zone configuration define?

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Total 93 questions
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A company is installing Cisco Collaboration infrastructure and one of the requirements is that they must be able to communicate with many external parties that are using H.323 and SIP. Internally they want to register the endpoints only on SIP. Which functionality would describe the feature that needs to be enabled and where to achieve this?
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