Cisco 300-075 Exam Questions

Question 6 of 395

Which two options should be used to create a secure traversal zone between the Expressway-C and Expressway-E? (Choose two.)

Expressway-C and Expressway-E must trust each other's server certificate.

One Cisco Unified Communications traversal zone for H.323 and SIP connections.

A separate pair of traversal zones must be configured if an H.323 connection is required and Interworking is disabled.

Enable username and password authentication verification on Expressway-E.

Create a set of username and password on each of the Expressway-C and Expressway-E to authenticate the neighboring peer.

Correct Answer: A, C

To create a secure traversal zone between Expressway-C and Expressway-E, Expressway-C and Expressway-E must trust each other's server certificates to ensure mutual authentication and encryption. Additionally, a separate pair of traversal zones must be configured if an H.323 connection is required and Interworking is disabled, to guarantee proper handling of H.323 traffic and maintaining the security of the traversal mechanism.

Question 7 of 395

Which two statements regarding you configuring a traversal server and traversal client relationship are true? (Choose two.)

VCS supports only the H.460.18/19 protocol for H.323 traversal calls.

VCS supports either the Assent or the H.460.18/19 protocol for H.323 traversal calls.

VCS supports either the Assent or the H.460.18/19 protocol for SIP traversal calls.

If the Assent protocol is configured, a TCP/TLS connection is established from the traversal client to the traversal server for SIP signaling.

A VCS Expressway located in the public network or DMZ acts as the firewall traversal client.

Correct Answer: B, D

Question 8 of 395

What is the standard Layer 3 DSCP media packet value that should be set for Cisco TelePresence endpoints?

CS3 (24)

EF (46)

AF41 (34)

CS4 (32)

Correct Answer: C

For Cisco TelePresence endpoints, the standard Layer 3 DSCP value typically set for media packets, which includes video traffic, is AF41 (34). This designation is used to ensure high priority is given to video traffic, providing proper Quality of Service (QoS) to maintain the video quality. Other options like CS4 are generally used for signaling, not media packets.

Question 9 of 395

When you configure QoS on VCS, which settings do you apply if traffic through the VCS should be tagged with DSCP AF41?

Set QoS mode to DiffServ and tag value 32.

Set QoS mode to IntServ and tag value to 34.

Set QoS mode to DiffServ and tag value 34.

Set QoS mode to IntServ and tag value to 32.

Set QoS mode to ToS and tag value to 32.

Correct Answer: C

Question 10 of 395

What is the default DSCP/PHB for video conferencing packets in Cisco Unified Communications Manager?

EF/46

CS6/48

AF41/34

CS3/24

Correct Answer: C