Building Cisco Service Provider Next-Generation Networks Part 1 (640-875) Free Practice Test

Question 1

Refer to the exhibit.

Which interface is the correct interface for the interface numbered as 13 in the correct network diagram?

A. Gi0/0/1

B. Gi0/0/9

C. Gi0/0/0

D. Gi0/0/2

E. Gi0/0/3

F. Gi0/0/5

Correct Answer: C

Question 2

Which Cisco router feature allows multiple independent routing table instances to co-exist within the same router at the same time?

A. VRF

B. Virtual Contexts

C. VPLS

D. Virtual Machines

E. GRE

F. VTI

Correct Answer: A

Question 3

Which three of the following components must be elected before the Spanning Tree Protocol can converge in a switched LAN? (Choose three.)

A. Backup ports

B. Root bridge

C. Root ports

D. Alternate ports

E. Designated ports

F. Converged ports

Correct Answer: B,C,E

Question 4

What is the Cisco recommended way to secure SNMPv2 community strings?

A. Create multiple read/write strings to keep the attacker guessing

B. Configure complex community string names and avoid using default settings

C. Use access-lists to limit the amount of access to the community strings

D. Use SNMPv3 to limit the amount of memory overhead

Correct Answer: C

Question 5

In IPv6, which kind of record is used for reverse lookups?

A. APL

B. PTR

C. AAAA

D. nibble

Correct Answer: B

Question 6

Given a ring topology, which loop prevention mechanism provides the fastest reconvergence time after a link failure?

A. Resilient Ethernet Protocol

B. Spanning Tree Protocol

C. Rapid Per-VLAN Spanning Tree Protocol

D. Multiple Spanning Tree Protocol

Correct Answer: A

Question 7

Given the CIDR address range of 200.165.160.0 to 200.165.191.255, what is the CIDR block?

A. 200.165.160.0/19

B. 200.165.160.0/17

C. 200.165.160.0/21

D. 200.165.160.0/18

E. 200.165.160.0/20

Correct Answer: A

Question 8

You configure a network to use IPv6, and you use RIPng as the routing protocol. What is the maximum hop count to use to install a route in the routing table?

A. 15

B. 255

C. 65535

D. 16

Correct Answer: A

Question 9

Which three statements about Cisco IOS XR CLI operations are true? (Choose three.)

A. Committed changes are persistent across reboots in Cisco IOS XR.

B. The clear global configuration command erases the entire current running configuration.

C. The show running-config global configuration command displays the configuration that occurs if the contents of the uncommitted changed (target configuration) are committed to the running configuration.

D. There is no concept of a startup-config in Cisco IOS XR.

E. Cisco IOS XR uses a three-stage configuration method.

F. The save global configuration command saves the contents of target configuration to the running configuration.

G. The commit replace global configuration command replaces the contents of the running configuration with the target configuration.

Correct Answer: A,D,G

Question 10

Drag the severity level on the left to the correct severity code on the right.