- (Exam Topic 2)
When determining if a system is capable of support, what is the minimum time spacing required for a BFD control packet to receive once a control packet is arrived?

1. A. Desired Min TX Interval
2. B. Detect Mult
3. C. Required Min RX Interval
4. D. Required Min Echo RX Interval

Correct Answer: C
Required Min RX Interval: This is the minimum interval, in microseconds, between received BFD Control packets that this system is capable of supporting.
Reference: https://www.cisco.com/en/US/technologies/tk648/tk365/tk480/technologies_white_paper0900aecd80244005.ht

- (Exam Topic 2)
Refer to the exhibit.

A network administrator has developed a Python script on the local Linux machine and is trying to transfer it to the router. However, the transfer fails. Which action resolves this issue?

1. A. The SSH service must be enabled with the crypto key generate rsa command.
2. B. The SCP service must be enabled with the ip scp server enable command.
3. C. The Python interpreter must first be enabled with the guestshell enable command.
4. D. The SSH access must be allowed on the VTY lines using the transport input ssh command.

Correct Answer: B
The error “Administratively disabled” means we need to enable SCP on the router with the command: Router(config)#ip scp server enable

- (Exam Topic 1)
An engineer is trying to copy an IOS file from one router to another router by using TFTP. Which two actions are needed to allow the file to copy? (Choose two.)

1. A. Copy the file to the destination router with the copy tftp: flash: command
2. B. Enable the TFTP server on the source router with the tftp-server flash: <filename> command
3. C. TFTP is not supported in recent IOS versions, so an alternative method must be used
4. D. Configure a user on the source router with the username tftp password tftp command
5. E. Configure the TFTP authentication on the source router with the tftp-server authentication local command

Correct Answer: AB

- (Exam Topic 3)
What is a characteristic of IPv6 RA Guard?

1. A. RA messages are allowed from the host port to the switch
2. B. It is unable to protect tunneled traffic
3. C. It filters rogue RA broadcasts from connected hosts
4. D. It is supported on the egress direction of the switch

Correct Answer: C

- (Exam Topic 3)
Refer to the exhibit.

A network engineer applied a filter for LSA traffic on OSPFv3 interarea routes on the area 5 ABR to protect advertising the internal routes of area 5 to the business partner network. All other areas should receive the area 5 internal routes. After the respective route filtering configuration is applied on the ABR, area 5 routes are not visible on any of the areas. How must the filter list be applied on the ABR to resolve this issue?

1. A. in the “in” direction for area 5 on router R1
2. B. in the “out” direction for area 5 on router R1
3. C. in the “in” direction for area 20 on router R2
4. D. in the “out” direction for area 20 on router R2

Correct Answer: D