- (Topic 4)
Which interface enables communication between a program on the controller and a program on the networking devices?

1. A. northbound interface
2. B. software virtual interface
3. C. southbound interface
4. D. tunnel Interface

Correct Answer: B

- (Topic 4)
Refer to the exhibit.
How does router R1 handle traffic to the 172.16.1.4/30 subnet?

1. A. It sends all traffic over the path via 172.16.9.5 using 172.16.4.4 as a backup.
2. B. It sends all traffic over the path via 10.0.1.100.
3. C. It load-balances traffic over 172.16.9.5 and 172.16.4.4.
4. D. It sends all traffic over the path via 172.16.4.4.

Correct Answer: C

- (Topic 2)
Which configuration is needed to generate an RSA key for SSH on a router?

1. A. Configure the version of SSH
2. B. Configure VTY access.
3. C. Create a user with a password.
4. D. Assign a DNS domain name

Correct Answer: D

- (Topic 4)
What is a characteristics of a collapsed-core network topology?

1. A. It allows the core and distribution layers to run as a single combined layer.
2. B. It enables the core and access layers to connect to one logical distribution device over an EtherChannel.
3. C. It enables all workstations in a SOHO environment to connect on a single switch with internet access.
4. D. It allows wireless devices to connect directly to the core layer, which enables faster data transmission.

Correct Answer: B

- (Topic 4)
Which IPsec transport mode encrypts the IP header and the payload?

1. A. pipe
2. B. control
3. C. transport
4. D. tunnel

Correct Answer: D